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Linux Analysis Report
HB2h7DKsXn.elf

Overview

General Information

Sample name:	HB2h7DKsXn.elf renamed because original name is a hash value
Original sample name:	8e85cb6f2215999dc6823ea3982ff4376c2cbea53286e95ed00250a4a2fe4729.elf
Analysis ID:	1501617
MD5:	e527b3f10217c1d663e567e041947033
SHA1:	168d8c11681ac4f59f335688b21ef7ffb83bc84d
SHA256:	8e85cb6f2215999dc6823ea3982ff4376c2cbea53286e95ed00250a4a2fe4729
Tags:	45-91-82-127Bifrostelf
Infos:

Detection

Score:	56
Range:	0 - 100
Whitelisted:	false

Signatures

Antivirus / Scanner detection for submitted sample

Multi AV Scanner detection for submitted file

Executes the "rm" command used to delete files or directories

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)

Uses the "uname" system call to query kernel version information (possible evasion)

Classification

General Information

Joe Sandbox version:	40.0.0 Tourmaline
Analysis ID:	1501617
Start date and time:	2024-08-30 08:37:05 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 11s
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:	HB2h7DKsXn.elf renamed because original name is a hash value
Original Sample Name:	8e85cb6f2215999dc6823ea3982ff4376c2cbea53286e95ed00250a4a2fe4729.elf
Detection:	MAL
Classification:	mal56.linELF@0/0@2/0

Runtime Messages

Command:	/tmp/HB2h7DKsXn.elf
PID:	6233
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

dash New Fork (PID: 6196, Parent: 4331)

rm (PID: 6196, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.kez7MmyFty /tmp/tmp.9HED5QhUTD /tmp/tmp.RYTmACJWEm

dash New Fork (PID: 6197, Parent: 4331)

rm (PID: 6197, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.kez7MmyFty /tmp/tmp.9HED5QhUTD /tmp/tmp.RYTmACJWEm

HB2h7DKsXn.elf (PID: 6233, Parent: 6130, MD5: e527b3f10217c1d663e567e041947033) Arguments: /tmp/HB2h7DKsXn.elf

HB2h7DKsXn.elf New Fork (PID: 6234, Parent: 6233)

HB2h7DKsXn.elf New Fork (PID: 6235, Parent: 6234)

cleanup

Yara Signatures

⊘No yara matches

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: HB2h7DKsXn.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: HB2h7DKsXn.elf	Virustotal: Detection: 61%			Perma Link
Source: HB2h7DKsXn.elf	ReversingLabs: Detection: 73%

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: download.vmfare.com 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: 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: 168.95.1.1

Source: global traffic

DNS traffic detected: DNS query: download.vmfare.com

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

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal56.linELF@0/0@2/0

Source: /usr/bin/dash (PID: 6196)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.kez7MmyFty /tmp/tmp.9HED5QhUTD /tmp/tmp.RYTmACJWEm			Jump to behavior
Source: /usr/bin/dash (PID: 6197)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.kez7MmyFty /tmp/tmp.9HED5QhUTD /tmp/tmp.RYTmACJWEm			Jump to behavior

Source: /tmp/HB2h7DKsXn.elf (PID: 6235)

Sleeps longer then 60s: 300.0s

Jump to behavior

Source: /tmp/HB2h7DKsXn.elf (PID: 6233)

Queries kernel information via 'uname':

Jump to behavior

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 Security Software Discovery	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	1 Virtualization/Sandbox Evasion	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	2 Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact

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

Screenshots

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
HB2h7DKsXn.elf	62%	Virustotal		Browse
HB2h7DKsXn.elf	74%	ReversingLabs	Linux.Trojan.Multiverze
HB2h7DKsXn.elf	100%	Avira	LINUX/AVA.Agent.vqxpp

Dropped Files

⊘No Antivirus matches

Domains

Source	Detection	Scanner	Label	Link
download.vmfare.com	13%	Virustotal		Browse

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
download.vmfare.com	unknown	unknown	false	13%, Virustotal, Browse	unknown

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
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
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	sora.arm6.elf	Get hash	malicious	Mirai	Browse
	checklist.elf	Get hash	malicious	Unknown	Browse
	bot.arm7.elf	Get hash	malicious	Mirai, Okiru	Browse
	SecuriteInfo.com.Linux.Siggen.9999.7103.25979.elf	Get hash	malicious	Mirai	Browse
	SecuriteInfo.com.Android.Banker.5117.19232.32315.elf	Get hash	malicious	Unknown	Browse
	lockton.exe.elf	Get hash	malicious	Unknown	Browse
	HsGTBFS78E.elf	Get hash	malicious	Sliver	Browse
	criptonize.armv7l.elf	Get hash	malicious	Unknown	Browse
	KwSb7C8Rpy.elf	Get hash	malicious	Unknown	Browse
	bot.arm.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse
91.189.91.42	sora.arm6.elf	Get hash	malicious	Mirai	Browse
	checklist.elf	Get hash	malicious	Unknown	Browse
	bot.arm7.elf	Get hash	malicious	Mirai, Okiru	Browse
	SecuriteInfo.com.Linux.Siggen.9999.7103.25979.elf	Get hash	malicious	Mirai	Browse
	SecuriteInfo.com.Android.Banker.5117.19232.32315.elf	Get hash	malicious	Unknown	Browse
	lockton.exe.elf	Get hash	malicious	Unknown	Browse
	HsGTBFS78E.elf	Get hash	malicious	Sliver	Browse
	criptonize.mips64.elf	Get hash	malicious	Unknown	Browse
	criptonize.armv7l.elf	Get hash	malicious	Unknown	Browse
	KwSb7C8Rpy.elf	Get hash	malicious	Unknown	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	sora.arm6.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	checklist.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	bot.arm7.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	SecuriteInfo.com.Linux.Siggen.9999.7103.25979.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	SecuriteInfo.com.Android.Banker.5117.19232.32315.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	lockton.exe.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	HsGTBFS78E.elf	Get hash	malicious	Sliver	Browse	91.189.91.42
	criptonize.i486.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	criptonize.mips64.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	criptonize.armv7l.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
CANONICAL-ASGB	sora.arm6.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	checklist.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	bot.arm7.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	SecuriteInfo.com.Linux.Siggen.9999.7103.25979.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	SecuriteInfo.com.Android.Banker.5117.19232.32315.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	lockton.exe.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	HsGTBFS78E.elf	Get hash	malicious	Sliver	Browse	91.189.91.42
	criptonize.i486.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	criptonize.mips64.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	criptonize.armv7l.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
INIT7CH	sora.arm6.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	checklist.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	bot.arm7.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	SecuriteInfo.com.Linux.Siggen.9999.7103.25979.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	SecuriteInfo.com.Android.Banker.5117.19232.32315.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	lockton.exe.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	HsGTBFS78E.elf	Get hash	malicious	Sliver	Browse	109.202.202.202
	criptonize.mips64.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	criptonize.armv7l.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	KwSb7C8Rpy.elf	Get hash	malicious	Unknown	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, for GNU/Linux 2.2.5, stripped
Entropy (8bit):	6.210090267696106
TrID:	ELF Executable and Linkable format (Linux) (4029/14) 50.16% ELF Executable and Linkable format (generic) (4004/1) 49.84%
File name:	HB2h7DKsXn.elf
File size:	453'668 bytes
MD5:	e527b3f10217c1d663e567e041947033
SHA1:	168d8c11681ac4f59f335688b21ef7ffb83bc84d
SHA256:	8e85cb6f2215999dc6823ea3982ff4376c2cbea53286e95ed00250a4a2fe4729
SHA512:	418b464ec0b939a06ae0f0b3daff5f59ff267bbd3cc77d41fe91aaa616fef333c8a6a3fa0c612d8f505fab2a1fda19817b709444799807cd461361fc6d64db64
SSDEEP:	12288:FtM4Cy+joOAVz8pAHcCf3LL2ecCEU8/1SQLjdAE2u8OJuVmC4zcsT8J:bM4Cy+sdKpVCfv0CEU8/1SQLjdAEV8Ok
TLSH:	D8A48C07F690E462C01202B02349EA725674FB328123CAC7BBD52FADAD755E2B71E717
File Content Preview:	.ELF........................4...........4. ...(..............................................0...0..tD..0Z.......................... ... ...........Q.td........................................GNU.................U......E..........L........................

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:	0x8048100
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	4
Section Header Offset:	452828
Section Header Size:	40
Number of Section Headers:	21
Header String Table Index:	20

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x80480d4	0xd4	0x17	0x0	0x6	AX	4
.text	PROGBITS	0x8048100	0x100	0x54fe1	0x0	0x6	AX	32
__libc_thread_freeres_fn	PROGBITS	0x809d0e4	0x550e4	0xdc	0x0	0x6	AX	4
__libc_freeres_fn	PROGBITS	0x809d1c0	0x551c0	0x58c	0x0	0x6	AX	4
.fini	PROGBITS	0x809d74c	0x5574c	0x1b	0x0	0x6	AX	4
.rodata	PROGBITS	0x809d780	0x55780	0x12a32	0x0	0x2	A	32
__libc_atexit	PROGBITS	0x80b01b4	0x681b4	0x4	0x0	0x2	A	4
__libc_subfreeres	PROGBITS	0x80b01b8	0x681b8	0x34	0x0	0x2	A	4
__libc_thread_subfreeres	PROGBITS	0x80b01ec	0x681ec	0x4	0x0	0x2	A	4
.eh_frame	PROGBITS	0x80b01f0	0x681f0	0x1e98	0x0	0x2	A	4
.data	PROGBITS	0x80b30a0	0x6a0a0	0x444c	0x0	0x3	WA	32
.ctors	PROGBITS	0x80b74ec	0x6e4ec	0xc	0x0	0x3	WA	4
.dtors	PROGBITS	0x80b74f8	0x6e4f8	0x8	0x0	0x3	WA	4
.jcr	PROGBITS	0x80b7500	0x6e500	0x4	0x0	0x3	WA	4
.got	PROGBITS	0x80b7504	0x6e504	0x10	0x4	0x3	WA	4
.bss	NOBITS	0x80b7520	0x6e520	0x41594	0x0	0x3	WA	32
__libc_freeres_ptrs	NOBITS	0x80f8ab4	0x6e520	0x1c	0x0	0x3	WA	4
.comment	PROGBITS	0x0	0x6e520	0x2d8	0x0	0x0		1
.note.ABI-tag	NOTE	0x80480b4	0xb4	0x20	0x0	0x2	A	4
.shstrtab	STRTAB	0x0	0x6e7f8	0xe1	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	0x6a088	0x6a088	6.3318	0x5	R E	0x1000	.init .text __libc_thread_freeres_fn __libc_freeres_fn .fini .rodata __libc_atexit __libc_subfreeres __libc_thread_subfreeres .eh_frame .note.ABI-tag
LOAD	0x6a0a0	0x80b30a0	0x80b30a0	0x4474	0x45a30	1.5966	0x6	RW	0x1000	.data .ctors .dtors .jcr .got .bss __libc_freeres_ptrs
NOTE	0xb4	0x80480b4	0x80480b4	0x20	0x20	1.6862	0x4	R	0x4	.note.ABI-tag
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Aug 30, 2024 08:37:43.254986048 CEST	43928	443	192.168.2.23	91.189.91.42
Aug 30, 2024 08:37:48.630388021 CEST	42836	443	192.168.2.23	91.189.91.43
Aug 30, 2024 08:37:50.422142029 CEST	42516	80	192.168.2.23	109.202.202.202
Aug 30, 2024 08:38:04.244178057 CEST	43928	443	192.168.2.23	91.189.91.42
Aug 30, 2024 08:38:14.482772112 CEST	42836	443	192.168.2.23	91.189.91.43
Aug 30, 2024 08:38:20.625818014 CEST	42516	80	192.168.2.23	109.202.202.202
Aug 30, 2024 08:38:45.198436022 CEST	43928	443	192.168.2.23	91.189.91.42
Aug 30, 2024 08:39:05.675646067 CEST	42836	443	192.168.2.23	91.189.91.43

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Aug 30, 2024 08:37:41.169395924 CEST	52365	53	192.168.2.23	168.95.1.1
Aug 30, 2024 08:37:41.477412939 CEST	53	52365	168.95.1.1	192.168.2.23
Aug 30, 2024 08:37:41.477648973 CEST	56168	53	192.168.2.23	8.8.8.8
Aug 30, 2024 08:37:41.505229950 CEST	53	56168	8.8.8.8	192.168.2.23

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Aug 30, 2024 08:37:41.169395924 CEST	192.168.2.23	168.95.1.1	0x6745	Standard query (0)	download.vmfare.com	A (IP address)	IN (0x0001)	false
Aug 30, 2024 08:37:41.477648973 CEST	192.168.2.23	8.8.8.8	0xc623	Standard query (0)	download.vmfare.com	A (IP address)	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Aug 30, 2024 08:37:41.477412939 CEST	168.95.1.1	192.168.2.23	0x6745	Name error (3)	download.vmfare.com	none	none	A (IP address)	IN (0x0001)	false
Aug 30, 2024 08:37:41.505229950 CEST	8.8.8.8	192.168.2.23	0xc623	Name error (3)	download.vmfare.com	none	none	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: dash PID: 6196, Parent PID: 4331

General

Start time (UTC):	06:37:35
Start date (UTC):	30/08/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6196, Parent PID: 4331

General

Start time (UTC):	06:37:35
Start date (UTC):	30/08/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.kez7MmyFty /tmp/tmp.9HED5QhUTD /tmp/tmp.RYTmACJWEm
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: dash PID: 6197, Parent PID: 4331

General

Start time (UTC):	06:37:35
Start date (UTC):	30/08/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6197, Parent PID: 4331

General

Start time (UTC):	06:37:35
Start date (UTC):	30/08/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.kez7MmyFty /tmp/tmp.9HED5QhUTD /tmp/tmp.RYTmACJWEm
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: HB2h7DKsXn.elf PID: 6233, Parent PID: 6130

General

Start time (UTC):	06:37:40
Start date (UTC):	30/08/2024
Path:	/tmp/HB2h7DKsXn.elf
Arguments:	/tmp/HB2h7DKsXn.elf
File size:	453668 bytes
MD5 hash:	e527b3f10217c1d663e567e041947033

Chronological Activities

Analysis Process: HB2h7DKsXn.elf PID: 6234, Parent PID: 6233

General

Start time (UTC):	06:37:40
Start date (UTC):	30/08/2024
Path:	/tmp/HB2h7DKsXn.elf
Arguments:	-
File size:	453668 bytes
MD5 hash:	e527b3f10217c1d663e567e041947033

Chronological Activities

Analysis Process: HB2h7DKsXn.elf PID: 6235, Parent PID: 6234

General

Start time (UTC):	06:37:40
Start date (UTC):	30/08/2024
Path:	/tmp/HB2h7DKsXn.elf
Arguments:	-
File size:	453668 bytes
MD5 hash:	e527b3f10217c1d663e567e041947033

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 attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, SaaS, 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 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

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Linux Analysis Report HB2h7DKsXn.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Persistence and Installation Behavior

Malware Analysis System 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

Network Port Distribution

TCP Packets

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: dash PID: 6196, Parent PID: 4331

General

Chronological Activities

Analysis Process: rm PID: 6196, Parent PID: 4331

General

Chronological Activities

Analysis Process: dash PID: 6197, Parent PID: 4331

General

Chronological Activities

Analysis Process: rm PID: 6197, Parent PID: 4331

General

Chronological Activities

Analysis Process: HB2h7DKsXn.elf PID: 6233, Parent PID: 6130

General

Chronological Activities

Analysis Process: HB2h7DKsXn.elf PID: 6234, Parent PID: 6233

General

Chronological Activities

Analysis Process: HB2h7DKsXn.elf PID: 6235, Parent PID: 6234

General

Chronological Activities

Linux Analysis Report
HB2h7DKsXn.elf