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Linux Analysis Report
sync.x86_64.elf

Overview

General Information

Sample name:	sync.x86_64.elf
Analysis ID:	1637932
MD5:	0c5d398fa342d58fcdd478d4eb5fbeb1
SHA1:	130b7ecfe15012a43973cce68e5a21bbf119d074
SHA256:	156a28a20cb83df98536e21f8476ffcc5cb35a7aededa881a1cb53f22443b71d
Tags:	elfMiraiuser-abuse_ch
Infos:

Detection

Score:	72
Range:	0 - 100

Signatures

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Suricata IDS alerts for network traffic

Performs DNS TXT record lookups

Sample deletes itself

Detected TCP or UDP traffic on non-standard ports

Sample has stripped symbol table

Sleeps for long times indicative of sandbox evasion

Tries to resolve domain names, but no domain seems valid (expired dropper behavior)

Yara signature match

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1637932
Start date and time:	2025-03-14 02:16:31 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 5m 9s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	defaultlinuxfilecookbook.jbs
Analysis system description:	Ubuntu Linux 20.04 x64 (Kernel 5.4.0-72, Firefox 91.0, Evince Document Viewer 3.36.10, LibreOffice 6.4.7.2, OpenJDK 11.0.11)
Analysis Mode:	default
Sample name:	sync.x86_64.elf
Detection:	MAL
Classification:	mal72.evad.linELF@0/0@15/0

Runtime Messages

Command:	/tmp/sync.x86_64.elf
PID:	5951
Exit Code:	1
Exit Code Info:
Killed:	False
Standard Output:	syncne
Standard Error:

Process Tree

system is lnxubuntu20

sync.x86_64.elf (PID: 5951, Parent: 5754, MD5: 0c5d398fa342d58fcdd478d4eb5fbeb1) Arguments: /tmp/sync.x86_64.elf

sync.x86_64.elf New Fork (PID: 5952, Parent: 5951)

sync.x86_64.elf New Fork (PID: 5953, Parent: 5952)

cleanup

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
sync.x86_64.elf	Linux_Trojan_Gafgyt_9e9530a7	unknown	unknown	0x7f74:$a: F6 48 63 FF B8 36 00 00 00 0F 05 48 3D 00 F0 FF FF 48 89 C3
sync.x86_64.elf	Linux_Trojan_Gafgyt_807911a2	unknown	unknown	0x8763:$a: FE 48 39 F3 0F 94 C2 48 83 F9 FF 0F 94 C0 84 D0 74 16 4B 8D
sync.x86_64.elf	Linux_Trojan_Gafgyt_d4227dbf	unknown	unknown	0x602e:$a: FF 48 81 EC D0 00 00 00 48 8D 84 24 E0 00 00 00 48 89 54 24 30 C7 04 24 18 00 0x9f6c:$a: FF 48 81 EC D0 00 00 00 48 8D 84 24 E0 00 00 00 48 89 54 24 30 C7 04 24 18 00
sync.x86_64.elf	Linux_Trojan_Gafgyt_d996d335	unknown	unknown	0xad6e:$a: D0 EB 0F 40 38 37 75 04 48 89 F8 C3 49 FF C8 48 FF C7 4D 85 C0
sync.x86_64.elf	Linux_Trojan_Gafgyt_620087b9	unknown	unknown	0x8323:$a: 48 89 D8 48 83 C8 01 EB 04 48 8B 76 10 48 3B 46 08 72 F6 48 8B
sync.x86_64.elf	Linux_Trojan_Gafgyt_33b4111a	unknown	unknown	0x85ee:$a: C1 83 E1 0F 74 1A B8 10 00 00 00 48 29 C8 48 8D 0C 02 48 89 DA 48
Click to see the 1 entries

Memory Dumps

Source	Rule	Description	Author	Strings
5951.1.0000000000400000.000000000040e000.r-x.sdmp	Linux_Trojan_Gafgyt_9e9530a7	unknown	unknown	0x7f74:$a: F6 48 63 FF B8 36 00 00 00 0F 05 48 3D 00 F0 FF FF 48 89 C3
5951.1.0000000000400000.000000000040e000.r-x.sdmp	Linux_Trojan_Gafgyt_807911a2	unknown	unknown	0x8763:$a: FE 48 39 F3 0F 94 C2 48 83 F9 FF 0F 94 C0 84 D0 74 16 4B 8D
5951.1.0000000000400000.000000000040e000.r-x.sdmp	Linux_Trojan_Gafgyt_d4227dbf	unknown	unknown	0x602e:$a: FF 48 81 EC D0 00 00 00 48 8D 84 24 E0 00 00 00 48 89 54 24 30 C7 04 24 18 00 0x9f6c:$a: FF 48 81 EC D0 00 00 00 48 8D 84 24 E0 00 00 00 48 89 54 24 30 C7 04 24 18 00
5951.1.0000000000400000.000000000040e000.r-x.sdmp	Linux_Trojan_Gafgyt_d996d335	unknown	unknown	0xad6e:$a: D0 EB 0F 40 38 37 75 04 48 89 F8 C3 49 FF C8 48 FF C7 4D 85 C0
5951.1.0000000000400000.000000000040e000.r-x.sdmp	Linux_Trojan_Gafgyt_620087b9	unknown	unknown	0x8323:$a: 48 89 D8 48 83 C8 01 EB 04 48 8B 76 10 48 3B 46 08 72 F6 48 8B
5951.1.0000000000400000.000000000040e000.r-x.sdmp	Linux_Trojan_Gafgyt_33b4111a	unknown	unknown	0x85ee:$a: C1 83 E1 0F 74 1A B8 10 00 00 00 48 29 C8 48 8D 0C 02 48 89 DA 48
Click to see the 1 entries

Suricata Signatures

ET MALWARE Potential DNS Command and Control via TXT queries

Timestamp	SID	Severity	Classtype	Source IP	Source Port	Destination IP	Destination Port	Protocol
2025-03-14T02:18:25.738437+0100	2013514	1	A Network Trojan was detected	192.168.2.13	36061	8.8.8.8	53	UDP

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary
• Hooking and other Techniques for Hiding and Protection
• Malware Analysis System Evasion
• HIPS / PFW / Operating System Protection Evasion

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: sync.x86_64.elf	Virustotal: Detection: 44%			Perma Link
Source: sync.x86_64.elf	ReversingLabs: Detection: 42%

Networking

Suricata IDS alerts for network traffic

Source: Network traffic

Suricata IDS: 2013514 - Severity 1 - ET MALWARE Potential DNS Command and Control via TXT queries : 192.168.2.13:36061 -> 8.8.8.8:53

Source: global traffic

TCP traffic: 192.168.2.13:38636 -> 185.194.205.79:61003

Source: unknown

DNS traffic detected: query: dnsresolve.socialgains.cf replaycode: Name error (3)

Source: unknown	TCP traffic detected without corresponding DNS query: 185.194.205.79
Source: unknown	TCP traffic detected without corresponding DNS query: 185.194.205.79
Source: unknown	TCP traffic detected without corresponding DNS query: 185.194.205.79
Source: unknown	TCP traffic detected without corresponding DNS query: 185.194.205.79
Source: unknown	TCP traffic detected without corresponding DNS query: 185.194.205.79
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown	UDP traffic detected without corresponding DNS query: 1.0.0.1
Source: unknown	UDP traffic detected without corresponding DNS query: 1.0.0.1
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1

Source: global traffic

DNS traffic detected: DNS query: dnsresolve.socialgains.cf

System Summary

Malicious sample detected (through community Yara rule)

Source: sync.x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_9e9530a7 Author: unknown
Source: sync.x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_807911a2 Author: unknown
Source: sync.x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_d4227dbf Author: unknown
Source: sync.x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_d996d335 Author: unknown
Source: sync.x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_620087b9 Author: unknown
Source: sync.x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_33b4111a Author: unknown
Source: 5951.1.0000000000400000.000000000040e000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_9e9530a7 Author: unknown
Source: 5951.1.0000000000400000.000000000040e000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_807911a2 Author: unknown
Source: 5951.1.0000000000400000.000000000040e000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_d4227dbf Author: unknown
Source: 5951.1.0000000000400000.000000000040e000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_d996d335 Author: unknown
Source: 5951.1.0000000000400000.000000000040e000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_620087b9 Author: unknown
Source: 5951.1.0000000000400000.000000000040e000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_33b4111a Author: unknown

Source: ELF static info symbol of initial sample

.symtab present: no

Source: sync.x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_9e9530a7 reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = d6ad6512051e87c8c35dc168d82edd071b122d026dce21d39b9782b3d6a01e50, id = 9e9530a7-ad4d-4a44-b764-437b7621052f, last_modified = 2021-09-16
Source: sync.x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_807911a2 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = f409037091b7372f5a42bbe437316bd11c655e7a5fe1fcf83d1981cb5c4a389f, id = 807911a2-f6ec-4e65-924f-61cb065dafc6, last_modified = 2021-09-16
Source: sync.x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_d4227dbf reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 58c4b1d4d167876b64cfa10f609911a80284180e4db093917fea16fae8ccd4e3, id = d4227dbf-6ab4-4637-a6ba-0e604acaafb4, last_modified = 2021-09-16
Source: sync.x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_d996d335 reference_sample = b511eacd4b44744c8cf82d1b4a9bc6f1022fe6be7c5d17356b171f727ddc6eda, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = e9ccb8412f32187c309b0e9afcc3a6da21ad2f1ffa251c27f9f720ccb284e3ac, id = d996d335-e049-4052-bf36-6cd07c911a8b, last_modified = 2021-09-16
Source: sync.x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_620087b9 reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 06cd7e6eb62352ec2ccb9ed48e58c0583c02fefd137cd048d053ab30b5330307, id = 620087b9-c87d-4752-89e8-ca1c16486b28, last_modified = 2021-09-16
Source: sync.x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_33b4111a reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 9c3b63b9a0f54006bae12abcefdb518904a85f78be573f0780f0a265b12d2d6e, id = 33b4111a-e59e-48db-9d74-34ca44fcd9f5, last_modified = 2021-09-16
Source: 5951.1.0000000000400000.000000000040e000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_9e9530a7 reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = d6ad6512051e87c8c35dc168d82edd071b122d026dce21d39b9782b3d6a01e50, id = 9e9530a7-ad4d-4a44-b764-437b7621052f, last_modified = 2021-09-16
Source: 5951.1.0000000000400000.000000000040e000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_807911a2 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = f409037091b7372f5a42bbe437316bd11c655e7a5fe1fcf83d1981cb5c4a389f, id = 807911a2-f6ec-4e65-924f-61cb065dafc6, last_modified = 2021-09-16
Source: 5951.1.0000000000400000.000000000040e000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_d4227dbf reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 58c4b1d4d167876b64cfa10f609911a80284180e4db093917fea16fae8ccd4e3, id = d4227dbf-6ab4-4637-a6ba-0e604acaafb4, last_modified = 2021-09-16
Source: 5951.1.0000000000400000.000000000040e000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_d996d335 reference_sample = b511eacd4b44744c8cf82d1b4a9bc6f1022fe6be7c5d17356b171f727ddc6eda, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = e9ccb8412f32187c309b0e9afcc3a6da21ad2f1ffa251c27f9f720ccb284e3ac, id = d996d335-e049-4052-bf36-6cd07c911a8b, last_modified = 2021-09-16
Source: 5951.1.0000000000400000.000000000040e000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_620087b9 reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 06cd7e6eb62352ec2ccb9ed48e58c0583c02fefd137cd048d053ab30b5330307, id = 620087b9-c87d-4752-89e8-ca1c16486b28, last_modified = 2021-09-16
Source: 5951.1.0000000000400000.000000000040e000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_33b4111a reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 9c3b63b9a0f54006bae12abcefdb518904a85f78be573f0780f0a265b12d2d6e, id = 33b4111a-e59e-48db-9d74-34ca44fcd9f5, last_modified = 2021-09-16

Source: classification engine

Classification label: mal72.evad.linELF@0/0@15/0

Hooking and other Techniques for Hiding and Protection

Sample deletes itself

Source: /tmp/sync.x86_64.elf (PID: 5951)

File: /tmp/sync.x86_64.elf

Jump to behavior

Source: /tmp/sync.x86_64.elf (PID: 5953)	Sleeps longer then 60s: 60.0s			Jump to behavior
Source: /tmp/sync.x86_64.elf (PID: 5953)	Sleeps longer then 60s: 60.0s			Jump to behavior

HIPS / PFW / Operating System Protection Evasion

Performs DNS TXT record lookups

Source: Traffic	DNS traffic detected: queries for: dnsresolve.socialgains.cf
Source: Traffic	DNS traffic detected: queries for: dnsresolve.socialgains.cf
Source: Traffic	DNS traffic detected: queries for: dnsresolve.socialgains.cf
Source: Traffic	DNS traffic detected: queries for: dnsresolve.socialgains.cf
Source: Traffic	DNS traffic detected: queries for: dnsresolve.socialgains.cf
Source: Traffic	DNS traffic detected: queries for: dnsresolve.socialgains.cf
Source: Traffic	DNS traffic detected: queries for: dnsresolve.socialgains.cf
Source: Traffic	DNS traffic detected: queries for: dnsresolve.socialgains.cf
Source: Traffic	DNS traffic detected: queries for: dnsresolve.socialgains.cf
Source: Traffic	DNS traffic detected: queries for: dnsresolve.socialgains.cf
Source: Traffic	DNS traffic detected: queries for: dnsresolve.socialgains.cf
Source: Traffic	DNS traffic detected: queries for: dnsresolve.socialgains.cf
Source: Traffic	DNS traffic detected: queries for: dnsresolve.socialgains.cf
Source: Traffic	DNS traffic detected: queries for: dnsresolve.socialgains.cf
Source: Traffic	DNS traffic detected: queries for: dnsresolve.socialgains.cf

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	Path Interception	Path Interception	1 Virtualization/Sandbox Evasion	OS Credential Dumping	1 Virtualization/Sandbox Evasion	Remote Services	Data from Local System	1 Non-Standard Port	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	1 File Deletion	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	1 Non-Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	1 Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact

Malware Configuration

⊘No configs have been found

Behavior Graph

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Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Number of created Files
Is malicious
Internet

Screenshots

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Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
sync.x86_64.elf	45%	Virustotal		Browse
sync.x86_64.elf	42%	ReversingLabs	Linux.Backdoor.Mirai

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
dnsresolve.socialgains.cf	unknown	unknown	false		high

World Map of Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public IPs

IP	Domain	Country	Flag	ASN	ASN Name	Malicious
185.194.205.79	unknown	France		204145	HTSENSEFR	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
185.194.205.79	sync.mipsel.elf	Get hash	malicious	Unknown	Browse
	sync.superh.elf	Get hash	malicious	Unknown	Browse
	sync.arm7.elf	Get hash	malicious	Unknown	Browse
	sync.arm6.elf	Get hash	malicious	Unknown	Browse
	sync.arm4.elf	Get hash	malicious	Unknown	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
HTSENSEFR	sync.mipsel.elf	Get hash	malicious	Unknown	Browse	185.194.205.79
	sync.superh.elf	Get hash	malicious	Unknown	Browse	185.194.205.79
	sync.arm7.elf	Get hash	malicious	Unknown	Browse	185.194.205.79
	sync.arm6.elf	Get hash	malicious	Unknown	Browse	185.194.205.79
	sync.arm4.elf	Get hash	malicious	Unknown	Browse	185.194.205.79

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Static File Info

General

File type:	ELF 64-bit LSB executable, x86-64, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.287713616798516
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	sync.x86_64.elf
File size:	55'856 bytes
MD5:	0c5d398fa342d58fcdd478d4eb5fbeb1
SHA1:	130b7ecfe15012a43973cce68e5a21bbf119d074
SHA256:	156a28a20cb83df98536e21f8476ffcc5cb35a7aededa881a1cb53f22443b71d
SHA512:	9415f7f7f211c040729d6add788b3939db224f44d066f1b4bc18c767c94fb29e16fdce2a81c07e6579d66932c56232c080a5f3ed8575f8b9b691c47b076617c2
SSDEEP:	1536:QqgDcqZIj1hPdX/DpnbsCv6uYDDTu82P3:xgDcqZIBhBpbf6uyTu82P3
TLSH:	3A435B432551D0FCCAA9C2790A5FF066E533B27C1235B52A77E8EE5B298BD703F2A144
File Content Preview:	.ELF..............>.......@.....@...................@.8...@.......................@.......@.....0.......0.......................8.......8.P.....8.P.....8.......................Q.td....................................................H...._........H........

Static ELF Info

ELF header
Class:	ELF64
Data:	2's complement, little endian
Version:	1 (current)
Machine:	Advanced Micro Devices X86-64
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x400194
Flags:	0x0
ELF Header Size:	64
Program Header Offset:	64
Program Header Size:	56
Number of Program Headers:	3
Section Header Offset:	55216
Section Header Size:	64
Number of Section Headers:	10
Header String Table Index:	9

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x4000e8	0xe8	0x13	0x0	0x6	AX	1
.text	PROGBITS	0x400100	0x100	0xb0f6	0x0	0x6	AX	16
.fini	PROGBITS	0x40b1f6	0xb1f6	0xe	0x0	0x6	AX	1
.rodata	PROGBITS	0x40b220	0xb220	0x2010	0x0	0x2	A	32
.ctors	PROGBITS	0x50d238	0xd238	0x10	0x0	0x3	WA	8
.dtors	PROGBITS	0x50d248	0xd248	0x10	0x0	0x3	WA	8
.data	PROGBITS	0x50d260	0xd260	0x510	0x0	0x3	WA	32
.bss	NOBITS	0x50d780	0xd770	0xeba8	0x0	0x3	WA	32
.shstrtab	STRTAB	0x0	0xd770	0x3e	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x400000	0x400000	0xd230	0xd230	6.3752	0x5	R E	0x100000	.init .text .fini .rodata
LOAD	0xd238	0x50d238	0x50d238	0x538	0xf0f0	2.8540	0x6	RW	0x100000	.ctors .dtors .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x8

Network Behavior

Download Network PCAP: filtered – full

Suricata IDS Alerts

Timestamp	SID	Signature	Severity	Source IP	Source Port	Dest IP	Dest Port	Protocol
2025-03-14T02:18:25.738437+0100	2013514	ET MALWARE Potential DNS Command and Control via TXT queries	1	192.168.2.13	36061	8.8.8.8	53	UDP

Network Port Distribution

Total Packets: 20
• 61003 undefined
• 53 (DNS)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 14, 2025 02:18:26.756071091 CET	38636	61003	192.168.2.13	185.194.205.79
Mar 14, 2025 02:18:26.761064053 CET	61003	38636	185.194.205.79	192.168.2.13
Mar 14, 2025 02:18:26.761130095 CET	38636	61003	192.168.2.13	185.194.205.79
Mar 14, 2025 02:18:26.761130095 CET	38636	61003	192.168.2.13	185.194.205.79
Mar 14, 2025 02:18:26.765845060 CET	61003	38636	185.194.205.79	192.168.2.13
Mar 14, 2025 02:19:26.815757036 CET	38636	61003	192.168.2.13	185.194.205.79
Mar 14, 2025 02:19:26.820574045 CET	61003	38636	185.194.205.79	192.168.2.13
Mar 14, 2025 02:19:27.019149065 CET	61003	38636	185.194.205.79	192.168.2.13
Mar 14, 2025 02:19:27.019232035 CET	38636	61003	192.168.2.13	185.194.205.79

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 14, 2025 02:18:11.248919964 CET	39192	53	192.168.2.13	8.8.4.4
Mar 14, 2025 02:18:11.277390957 CET	53	39192	8.8.4.4	192.168.2.13
Mar 14, 2025 02:18:12.279174089 CET	45055	53	192.168.2.13	1.1.1.1
Mar 14, 2025 02:18:12.381885052 CET	53	45055	1.1.1.1	192.168.2.13
Mar 14, 2025 02:18:13.383733034 CET	36064	53	192.168.2.13	8.8.4.4
Mar 14, 2025 02:18:13.399662971 CET	53	36064	8.8.4.4	192.168.2.13
Mar 14, 2025 02:18:14.401253939 CET	51468	53	192.168.2.13	1.1.1.1
Mar 14, 2025 02:18:14.458719015 CET	53	51468	1.1.1.1	192.168.2.13
Mar 14, 2025 02:18:15.460401058 CET	35291	53	192.168.2.13	8.8.8.8
Mar 14, 2025 02:18:15.475637913 CET	53	35291	8.8.8.8	192.168.2.13
Mar 14, 2025 02:18:16.477453947 CET	40006	53	192.168.2.13	8.8.8.8
Mar 14, 2025 02:18:16.493099928 CET	53	40006	8.8.8.8	192.168.2.13
Mar 14, 2025 02:18:17.494714975 CET	53726	53	192.168.2.13	8.8.4.4
Mar 14, 2025 02:18:17.509577990 CET	53	53726	8.8.4.4	192.168.2.13
Mar 14, 2025 02:18:18.511260986 CET	51083	53	192.168.2.13	1.0.0.1
Mar 14, 2025 02:18:18.535677910 CET	53	51083	1.0.0.1	192.168.2.13
Mar 14, 2025 02:18:19.537431955 CET	41252	53	192.168.2.13	1.0.0.1
Mar 14, 2025 02:18:19.642604113 CET	53	41252	1.0.0.1	192.168.2.13
Mar 14, 2025 02:18:20.644854069 CET	49152	53	192.168.2.13	8.8.8.8
Mar 14, 2025 02:18:20.659631968 CET	53	49152	8.8.8.8	192.168.2.13
Mar 14, 2025 02:18:21.661323071 CET	43617	53	192.168.2.13	8.8.4.4
Mar 14, 2025 02:18:21.676409960 CET	53	43617	8.8.4.4	192.168.2.13
Mar 14, 2025 02:18:22.677897930 CET	54776	53	192.168.2.13	1.1.1.1
Mar 14, 2025 02:18:22.702583075 CET	53	54776	1.1.1.1	192.168.2.13
Mar 14, 2025 02:18:23.704245090 CET	39162	53	192.168.2.13	8.8.8.8
Mar 14, 2025 02:18:23.719386101 CET	53	39162	8.8.8.8	192.168.2.13
Mar 14, 2025 02:18:24.721021891 CET	34641	53	192.168.2.13	8.8.4.4
Mar 14, 2025 02:18:24.736211061 CET	53	34641	8.8.4.4	192.168.2.13
Mar 14, 2025 02:18:25.738436937 CET	36061	53	192.168.2.13	8.8.8.8
Mar 14, 2025 02:18:25.754164934 CET	53	36061	8.8.8.8	192.168.2.13

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Mar 14, 2025 02:18:11.248919964 CET	192.168.2.13	8.8.4.4	0x5cbf	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false
Mar 14, 2025 02:18:12.279174089 CET	192.168.2.13	1.1.1.1	0x5cbf	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false
Mar 14, 2025 02:18:13.383733034 CET	192.168.2.13	8.8.4.4	0x5cbf	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false
Mar 14, 2025 02:18:14.401253939 CET	192.168.2.13	1.1.1.1	0x5cbf	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false
Mar 14, 2025 02:18:15.460401058 CET	192.168.2.13	8.8.8.8	0x5cbf	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false
Mar 14, 2025 02:18:16.477453947 CET	192.168.2.13	8.8.8.8	0x5cbf	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false
Mar 14, 2025 02:18:17.494714975 CET	192.168.2.13	8.8.4.4	0x5cbf	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false
Mar 14, 2025 02:18:18.511260986 CET	192.168.2.13	1.0.0.1	0x5cbf	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false
Mar 14, 2025 02:18:19.537431955 CET	192.168.2.13	1.0.0.1	0x5cbf	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false
Mar 14, 2025 02:18:20.644854069 CET	192.168.2.13	8.8.8.8	0x5cbf	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false
Mar 14, 2025 02:18:21.661323071 CET	192.168.2.13	8.8.4.4	0x5cbf	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false
Mar 14, 2025 02:18:22.677897930 CET	192.168.2.13	1.1.1.1	0x5cbf	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false
Mar 14, 2025 02:18:23.704245090 CET	192.168.2.13	8.8.8.8	0x5cbf	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false
Mar 14, 2025 02:18:24.721021891 CET	192.168.2.13	8.8.4.4	0x5cbf	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false
Mar 14, 2025 02:18:25.738436937 CET	192.168.2.13	8.8.8.8	0x5cbf	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Mar 14, 2025 02:18:11.277390957 CET	8.8.4.4	192.168.2.13	0x5cbf	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false
Mar 14, 2025 02:18:12.381885052 CET	1.1.1.1	192.168.2.13	0x5cbf	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false
Mar 14, 2025 02:18:13.399662971 CET	8.8.4.4	192.168.2.13	0x5cbf	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false
Mar 14, 2025 02:18:14.458719015 CET	1.1.1.1	192.168.2.13	0x5cbf	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false
Mar 14, 2025 02:18:15.475637913 CET	8.8.8.8	192.168.2.13	0x5cbf	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false
Mar 14, 2025 02:18:16.493099928 CET	8.8.8.8	192.168.2.13	0x5cbf	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false
Mar 14, 2025 02:18:17.509577990 CET	8.8.4.4	192.168.2.13	0x5cbf	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false
Mar 14, 2025 02:18:18.535677910 CET	1.0.0.1	192.168.2.13	0x5cbf	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false
Mar 14, 2025 02:18:19.642604113 CET	1.0.0.1	192.168.2.13	0x5cbf	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false
Mar 14, 2025 02:18:20.659631968 CET	8.8.8.8	192.168.2.13	0x5cbf	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false
Mar 14, 2025 02:18:21.676409960 CET	8.8.4.4	192.168.2.13	0x5cbf	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false
Mar 14, 2025 02:18:22.702583075 CET	1.1.1.1	192.168.2.13	0x5cbf	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false
Mar 14, 2025 02:18:23.719386101 CET	8.8.8.8	192.168.2.13	0x5cbf	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false
Mar 14, 2025 02:18:24.736211061 CET	8.8.4.4	192.168.2.13	0x5cbf	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false
Mar 14, 2025 02:18:25.754164934 CET	8.8.8.8	192.168.2.13	0x5cbf	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false

System Behavior

Analysis Process: sync.x86_64.elf PID: 5951, Parent PID: 5754

General

Start time (UTC):	01:18:10
Start date (UTC):	14/03/2025
Path:	/tmp/sync.x86_64.elf
Arguments:	/tmp/sync.x86_64.elf
File size:	55856 bytes
MD5 hash:	0c5d398fa342d58fcdd478d4eb5fbeb1

File Activities

File Opened

File Deleted

Directory Deleted

Process Activities

Process Forked

Prctl Requested

Network Activities

Socket Connecting

Chronological Activities

Analysis Process: sync.x86_64.elf PID: 5952, Parent PID: 5951

General

Start time (UTC):	01:18:10
Start date (UTC):	14/03/2025
Path:	/tmp/sync.x86_64.elf
Arguments:	-
File size:	55856 bytes
MD5 hash:	0c5d398fa342d58fcdd478d4eb5fbeb1

Process Activities

Process Forked

Thread Sleep

Network Activities

Socket Connecting

Chronological Activities

Analysis Process: sync.x86_64.elf PID: 5953, Parent PID: 5952

General

Start time (UTC):	01:18:10
Start date (UTC):	14/03/2025
Path:	/tmp/sync.x86_64.elf
Arguments:	-
File size:	55856 bytes
MD5 hash:	0c5d398fa342d58fcdd478d4eb5fbeb1

Description:	Adversaries may employ various means to detect and avoid virtualization and analysis environments. This may include changing behaviors based on the results of checks for the presence of artifacts indicative of a virtual machine environment (VME) or sandbox. If the adversary detects a VME, they may alter their malware to disengage from the victim or conceal the core functions of the implant. They may also search for VME artifacts before dropping secondary or additional payloads. Adversaries may use the information learned from [Virtualization/Sandbox Evasion](https://attack.mitre.org/techniques/T1497) during automated discovery to shape follow-on behaviors.
Tactics:	Defense Evasion, Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary (ex: Ingress Tool Transfer ) may leave traces to indicate to what was done within a network and how. Removal of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary's footprint.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Deletion
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using a protocol and port pairing that are typically not associated. For example, HTTPS over port 8088or port 587as opposed to the traditional port 443. Adversaries may make changes to the standard port used by a protocol to bypass filtering or muddle analysis/parsing of network data.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using OSI application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report sync.x86_64.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Yara Signatures

Initial Sample

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

HIPS / PFW / Operating System Protection Evasion

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

World Map of Contacted IPs

Public IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

Suricata IDS Alerts

Network Port Distribution

TCP Packets

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: sync.x86_64.elf PID: 5951, Parent PID: 5754

General

File Activities

File Opened

File Deleted

Directory Deleted

Process Activities

Process Forked

Prctl Requested

Network Activities

Socket Connecting

Chronological Activities

Analysis Process: sync.x86_64.elf PID: 5952, Parent PID: 5951

General

Process Activities

Process Forked

Thread Sleep

Network Activities

Linux Analysis Report
sync.x86_64.elf