Edit tour

Linux Analysis Report
sync.x86.elf

Overview

General Information

Sample name:	sync.x86.elf
Analysis ID:	1642638
MD5:	57d212e819930e85f687cd233357cfb4
SHA1:	f4dc9033810f597bf434d2ceb63751bfdd3affd5
SHA256:	0d0b0e49872cb6d044052b4b141916611add0b65ec19e84f49c0b8fd65c05612
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	64
Range:	0 - 100

Signatures

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

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 connect to HTTP servers, but all servers are down (expired dropper behavior)

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:	1642638
Start date and time:	2025-03-19 09:22:10 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 37s
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.elf
Detection:	MAL
Classification:	mal64.evad.linELF@0/0@5/0

Runtime Messages

Command:	/tmp/sync.x86.elf
PID:	6238
Exit Code:	1
Exit Code Info:
Killed:	False
Standard Output:	sync
Standard Error:

Process Tree

system is lnxubuntu20

sync.x86.elf (PID: 6238, Parent: 6156, MD5: 57d212e819930e85f687cd233357cfb4) Arguments: /tmp/sync.x86.elf

sync.x86.elf New Fork (PID: 6239, Parent: 6238)

sync.x86.elf New Fork (PID: 6240, Parent: 6239)

cleanup

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
sync.x86.elf	Linux_Trojan_Mirai_389ee3e9	unknown	unknown	0x8a06:$a: 89 45 00 EB 2C 8B 4B 04 8B 13 8B 7B 18 8B 01 01 02 8B 02 83
sync.x86.elf	Linux_Trojan_Mirai_cc93863b	unknown	unknown	0x7640:$a: C3 57 8B 44 24 0C 8B 4C 24 10 8B 7C 24 08 F3 AA 8B 44 24 08

Memory Dumps

Source	Rule	Description	Author	Strings
6238.1.0000000008048000.0000000008055000.r-x.sdmp	Linux_Trojan_Mirai_389ee3e9	unknown	unknown	0x8a06:$a: 89 45 00 EB 2C 8B 4B 04 8B 13 8B 7B 18 8B 01 01 02 8B 02 83
6238.1.0000000008048000.0000000008055000.r-x.sdmp	Linux_Trojan_Mirai_cc93863b	unknown	unknown	0x7640:$a: C3 57 8B 44 24 0C 8B 4C 24 10 8B 7C 24 08 F3 AA 8B 44 24 08
6239.1.0000000008048000.0000000008055000.r-x.sdmp	Linux_Trojan_Mirai_389ee3e9	unknown	unknown	0x8a06:$a: 89 45 00 EB 2C 8B 4B 04 8B 13 8B 7B 18 8B 01 01 02 8B 02 83
6239.1.0000000008048000.0000000008055000.r-x.sdmp	Linux_Trojan_Mirai_cc93863b	unknown	unknown	0x7640:$a: C3 57 8B 44 24 0C 8B 4C 24 10 8B 7C 24 08 F3 AA 8B 44 24 08

Suricata Signatures

⊘No Suricata rule has matched

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.elf	Virustotal: Detection: 47%			Perma Link
Source: sync.x86.elf	ReversingLabs: Detection: 55%

Source: global traffic

TCP traffic: 192.168.2.23:41000 -> 185.194.205.79:61005

Source: global traffic	TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global traffic	TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global traffic	TCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80

Source: unknown

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

Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
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: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
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: global traffic

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

Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

System Summary

Malicious sample detected (through community Yara rule)

Source: sync.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: sync.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: 6238.1.0000000008048000.0000000008055000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: 6238.1.0000000008048000.0000000008055000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: 6239.1.0000000008048000.0000000008055000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: 6239.1.0000000008048000.0000000008055000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown

Source: ELF static info symbol of initial sample

.symtab present: no

Source: sync.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_389ee3e9 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 59f2359dc1f41d385d639d157b4cd9fc73d76d8abb7cc09d47632bb4c9a39e6e, id = 389ee3e9-70c1-4c93-a999-292cf6ff1652, last_modified = 2022-01-26
Source: sync.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_cc93863b reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f3ecd30f0b511a8e92cfa642409d559e7612c3f57a1659ca46c77aca809a00ac, id = cc93863b-1050-40ba-9d02-5ec9ce6a3a28, last_modified = 2022-01-26
Source: 6238.1.0000000008048000.0000000008055000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_389ee3e9 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 59f2359dc1f41d385d639d157b4cd9fc73d76d8abb7cc09d47632bb4c9a39e6e, id = 389ee3e9-70c1-4c93-a999-292cf6ff1652, last_modified = 2022-01-26
Source: 6238.1.0000000008048000.0000000008055000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_cc93863b reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f3ecd30f0b511a8e92cfa642409d559e7612c3f57a1659ca46c77aca809a00ac, id = cc93863b-1050-40ba-9d02-5ec9ce6a3a28, last_modified = 2022-01-26
Source: 6239.1.0000000008048000.0000000008055000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_389ee3e9 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 59f2359dc1f41d385d639d157b4cd9fc73d76d8abb7cc09d47632bb4c9a39e6e, id = 389ee3e9-70c1-4c93-a999-292cf6ff1652, last_modified = 2022-01-26
Source: 6239.1.0000000008048000.0000000008055000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_cc93863b reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f3ecd30f0b511a8e92cfa642409d559e7612c3f57a1659ca46c77aca809a00ac, id = cc93863b-1050-40ba-9d02-5ec9ce6a3a28, last_modified = 2022-01-26

Source: classification engine

Classification label: mal64.evad.linELF@0/0@5/0

Hooking and other Techniques for Hiding and Protection

Sample deletes itself

Source: /tmp/sync.x86.elf (PID: 6238)

File: /tmp/sync.x86.elf

Jump to behavior

Source: /tmp/sync.x86.elf (PID: 6240)	Sleeps longer then 60s: 60.0s			Jump to behavior
Source: /tmp/sync.x86.elf (PID: 6240)	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

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 Encrypted Channel	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-Standard Port	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 Non-Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact
Employee Names	Virtual Private Server	Local Accounts	Cron	Login Hook	Login Hook	Binary Padding	NTDS	System Network Configuration Discovery	Distributed Component Object Model	Input Capture	2 Application Layer Protocol	Traffic Duplication	Data Destruction

Malware Configuration

⊘No configs have been found

Behavior Graph

Hide Legend

Legend:

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

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
sync.x86.elf	48%	Virustotal		Browse
sync.x86.elf	56%	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	ASN	ASN Name	Malicious
185.194.205.79	unknown	France	204145	HTSENSEFR	false
109.202.202.202	unknown	Switzerland	13030	INIT7CH	false
91.189.91.43	unknown	United Kingdom	41231	CANONICAL-ASGB	false
91.189.91.42	unknown	United Kingdom	41231	CANONICAL-ASGB	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
185.194.205.79	sync.mips.elf	Get hash	malicious	Unknown	Browse
	sync.arm4.elf	Get hash	malicious	Unknown	Browse
	sync.x86_64.elf	Get hash	malicious	Unknown	Browse
	sync.m68k.elf	Get hash	malicious	Mirai	Browse
	sync.mipsel.elf	Get hash	malicious	Unknown	Browse
	sync.arm5.elf	Get hash	malicious	Unknown	Browse
	sync.arm7.elf	Get hash	malicious	Unknown	Browse
	sync.sparc.elf	Get hash	malicious	Unknown	Browse
	sync.powerpc.elf	Get hash	malicious	Unknown	Browse
	sync.superh.elf	Get hash	malicious	Unknown	Browse
109.202.202.202	kpLwzBouH4.elf	Get hash	malicious	Unknown	Browse	ch.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox_92.0%2bbuild3-0ubuntu0.20.04.1_amd64.deb
91.189.91.43	spim.elf	Get hash	malicious	Mirai	Browse
	sync.mips.elf	Get hash	malicious	Unknown	Browse
	sync.arm4.elf	Get hash	malicious	Unknown	Browse
	sync.x86_64.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	sync.m68k.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	sync.powerpc.elf	Get hash	malicious	Unknown	Browse
91.189.91.42	spim.elf	Get hash	malicious	Mirai	Browse
	sync.mips.elf	Get hash	malicious	Unknown	Browse
	sync.arm4.elf	Get hash	malicious	Unknown	Browse
	sync.x86_64.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	sync.m68k.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	sync.powerpc.elf	Get hash	malicious	Unknown	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	spim.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	sync.mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sync.arm4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sync.x86_64.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	sync.m68k.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	sync.mipsel.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
CANONICAL-ASGB	spim.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	sync.mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sync.arm4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sync.x86_64.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	sync.m68k.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	sync.mipsel.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
HTSENSEFR	sync.mips.elf	Get hash	malicious	Unknown	Browse	185.194.205.79
	sync.arm4.elf	Get hash	malicious	Unknown	Browse	185.194.205.79
	sync.x86_64.elf	Get hash	malicious	Unknown	Browse	185.194.205.79
	sync.m68k.elf	Get hash	malicious	Mirai	Browse	185.194.205.79
	sync.mipsel.elf	Get hash	malicious	Unknown	Browse	185.194.205.79
	sync.arm5.elf	Get hash	malicious	Unknown	Browse	185.194.205.79
	sync.arm7.elf	Get hash	malicious	Unknown	Browse	185.194.205.79
	sync.sparc.elf	Get hash	malicious	Unknown	Browse	185.194.205.79
	sync.powerpc.elf	Get hash	malicious	Unknown	Browse	185.194.205.79
	sync.superh.elf	Get hash	malicious	Unknown	Browse	185.194.205.79
INIT7CH	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	spim.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	sync.mips.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	sync.arm4.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	sync.x86_64.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	sync.m68k.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Static File Info

General

File type:	ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.5929931269289925
TrID:	ELF Executable and Linkable format (Linux) (4029/14) 50.16% ELF Executable and Linkable format (generic) (4004/1) 49.84%
File name:	sync.x86.elf
File size:	51'316 bytes
MD5:	57d212e819930e85f687cd233357cfb4
SHA1:	f4dc9033810f597bf434d2ceb63751bfdd3affd5
SHA256:	0d0b0e49872cb6d044052b4b141916611add0b65ec19e84f49c0b8fd65c05612
SHA512:	89bdd48bb4f0f34fe4137d3a32965272b9420dae38950b66d0257f47f764adee1d0d96166af59808becb20712097318d40901f634f8f92b47ccd1d59c0fe3c2c
SSDEEP:	1536:TQYIe8SXujeDGK4ptN2wmUy+Bo3q9yDl/PlrT0gt8crwP:keOD2FUy+HA9PlrTTecsP
TLSH:	B2334AC7A982CDB5F86701B05A3BEB258673F4361015CA73F352192AE831E80D796B5E
File Content Preview:	.ELF....................d...4...........4. ...(.....................\|...\|....................S...S..$...............Q.td............................U..S............h........[]...$.............U......=.V...t..5.....S......S......u........t....h\|C..........

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	Intel 80386
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x8048164
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	50916
Section Header Size:	40
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	0x8048094	0x94	0x1c	0x0	0x6	AX	1
.text	PROGBITS	0x80480b0	0xb0	0xa5a6	0x0	0x6	AX	16
.fini	PROGBITS	0x8052656	0xa656	0x17	0x0	0x6	AX	1
.rodata	PROGBITS	0x8052680	0xa680	0x1cfc	0x0	0x2	A	32
.ctors	PROGBITS	0x8055380	0xc380	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x8055388	0xc388	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x80553a0	0xc3a0	0x304	0x0	0x3	WA	32
.bss	NOBITS	0x80556c0	0xc6a4	0xa6c0	0x0	0x3	WA	32
.shstrtab	STRTAB	0x0	0xc6a4	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	0x8048000	0x8048000	0xc37c	0xc37c	6.6308	0x5	R E	0x1000	.init .text .fini .rodata
LOAD	0xc380	0x8055380	0x8055380	0x324	0xaa00	4.1969	0x6	RW	0x1000	.ctors .dtors .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 17
• 61005 undefined
• 443 (HTTPS)
• 80 (HTTP)
• 53 (DNS)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 19, 2025 09:22:56.958280087 CET	43928	443	192.168.2.23	91.189.91.42
Mar 19, 2025 09:23:02.333638906 CET	42836	443	192.168.2.23	91.189.91.43
Mar 19, 2025 09:23:02.988615990 CET	41000	61005	192.168.2.23	185.194.205.79
Mar 19, 2025 09:23:02.993379116 CET	61005	41000	185.194.205.79	192.168.2.23
Mar 19, 2025 09:23:02.993458986 CET	41000	61005	192.168.2.23	185.194.205.79
Mar 19, 2025 09:23:03.213756084 CET	41000	61005	192.168.2.23	185.194.205.79
Mar 19, 2025 09:23:03.218679905 CET	61005	41000	185.194.205.79	192.168.2.23
Mar 19, 2025 09:23:03.218738079 CET	41000	61005	192.168.2.23	185.194.205.79
Mar 19, 2025 09:23:03.873164892 CET	42516	80	192.168.2.23	109.202.202.202
Mar 19, 2025 09:23:17.691590071 CET	43928	443	192.168.2.23	91.189.91.42
Mar 19, 2025 09:23:27.929944038 CET	42836	443	192.168.2.23	91.189.91.43
Mar 19, 2025 09:23:34.073375940 CET	42516	80	192.168.2.23	109.202.202.202
Mar 19, 2025 09:23:58.645755053 CET	43928	443	192.168.2.23	91.189.91.42
Mar 19, 2025 09:24:19.123039961 CET	42836	443	192.168.2.23	91.189.91.43

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 19, 2025 09:22:57.627839088 CET	44049	53	192.168.2.23	8.8.4.4
Mar 19, 2025 09:22:57.656286001 CET	53	44049	8.8.4.4	192.168.2.23
Mar 19, 2025 09:22:58.657896996 CET	44940	53	192.168.2.23	1.1.1.1
Mar 19, 2025 09:22:58.804668903 CET	53	44940	1.1.1.1	192.168.2.23
Mar 19, 2025 09:22:59.806540012 CET	60691	53	192.168.2.23	8.8.4.4
Mar 19, 2025 09:22:59.821963072 CET	53	60691	8.8.4.4	192.168.2.23
Mar 19, 2025 09:23:00.823545933 CET	43141	53	192.168.2.23	1.0.0.1
Mar 19, 2025 09:23:00.847851992 CET	53	43141	1.0.0.1	192.168.2.23
Mar 19, 2025 09:23:01.849674940 CET	40504	53	192.168.2.23	1.0.0.1
Mar 19, 2025 09:23:01.986015081 CET	53	40504	1.0.0.1	192.168.2.23

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Mar 19, 2025 09:22:57.627839088 CET	192.168.2.23	8.8.4.4	0x5a95	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false
Mar 19, 2025 09:22:58.657896996 CET	192.168.2.23	1.1.1.1	0x5a95	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false
Mar 19, 2025 09:22:59.806540012 CET	192.168.2.23	8.8.4.4	0x5a95	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false
Mar 19, 2025 09:23:00.823545933 CET	192.168.2.23	1.0.0.1	0x5a95	Standard query (0)	dnsresolve.socialgains.cf	16	IN (0x0001)	false
Mar 19, 2025 09:23:01.849674940 CET	192.168.2.23	1.0.0.1	0x5a95	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 19, 2025 09:22:57.656286001 CET	8.8.4.4	192.168.2.23	0x5a95	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false
Mar 19, 2025 09:22:58.804668903 CET	1.1.1.1	192.168.2.23	0x5a95	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false
Mar 19, 2025 09:22:59.821963072 CET	8.8.4.4	192.168.2.23	0x5a95	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false
Mar 19, 2025 09:23:00.847851992 CET	1.0.0.1	192.168.2.23	0x5a95	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false
Mar 19, 2025 09:23:01.986015081 CET	1.0.0.1	192.168.2.23	0x5a95	Name error (3)	dnsresolve.socialgains.cf	none	none	16	IN (0x0001)	false

System Behavior

Analysis Process: sync.x86.elf PID: 6238, Parent PID: 6156

General

Start time (UTC):	08:22:56
Start date (UTC):	19/03/2025
Path:	/tmp/sync.x86.elf
Arguments:	/tmp/sync.x86.elf
File size:	51316 bytes
MD5 hash:	57d212e819930e85f687cd233357cfb4

File Activities

File Opened

File Deleted

Directory Deleted

Process Activities

Process Forked

Prctl Requested

Chronological Activities

Analysis Process: sync.x86.elf PID: 6239, Parent PID: 6238

General

Start time (UTC):	08:22:56
Start date (UTC):	19/03/2025
Path:	/tmp/sync.x86.elf
Arguments:	-
File size:	51316 bytes
MD5 hash:	57d212e819930e85f687cd233357cfb4

Process Activities

Process Forked

Thread Sleep

Chronological Activities

Analysis Process: sync.x86.elf PID: 6240, Parent PID: 6239

General

Start time (UTC):	08:22:56
Start date (UTC):	19/03/2025
Path:	/tmp/sync.x86.elf
Arguments:	-
File size:	51316 bytes
MD5 hash:	57d212e819930e85f687cd233357cfb4

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 employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content
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.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

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

Network Port Distribution

TCP Packets

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: sync.x86.elf PID: 6238, Parent PID: 6156

General

File Activities

File Opened

File Deleted

Directory Deleted

Process Activities

Process Forked

Prctl Requested

Chronological Activities

Analysis Process: sync.x86.elf PID: 6239, Parent PID: 6238

General

Process Activities

Process Forked

Thread Sleep

Chronological Activities

Analysis Process: sync.x86.elf PID: 6240, Parent PID: 6239

General

Process Activities

Thread Sleep

Chronological Activities

Linux Analysis Report
sync.x86.elf