MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8fa7b0537fe23ba9b9bc3daa0d397d09e57bed774cf59f066a9400c2281d81f. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Threat unknown


Vendor detections: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b8fa7b0537fe23ba9b9bc3daa0d397d09e57bed774cf59f066a9400c2281d81f
SHA3-384 hash: 8bc3b3464caf68e5306afd5f94a61bbed56a5e856c3430304c4cff9b92183aa33a4b8f08c0693240c0e5c1bddfb109e5
SHA1 hash: cd83c745b549d4ce255e0882abf2f301df348b21
MD5 hash: c60e292b9080d9470a7332dd7bd2c330
humanhash: juliet-crazy-potato-uniform
File name:ssh-agent-auth.arm
Download: download sample
File size:37'611 bytes
First seen:2026-02-01 12:16:44 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:wz5z3wbnnbf/ktyz2xq8utjCIvs8G42iGBRvJxGK5EkEJQs3UozS1:Iwbnbqhxq8u4IvrvjgRvvp5EDJFzS1
TLSH T17FF2F22EBE5A8916EA399D76EA18759767B20F1BD1CCF2A37C28C11462CC41C35F09D3
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf

Intelligence

File Origin
# of uploads :
1
# of downloads :
31
Origin country :
DE DE
Vendor Threat Intelligence
Gathering data
Detection(s):
SecuriteInfo.com.Linux.Mirai-18.UNOFFICIAL
Create hunting rule

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade mirai packed packed upx
Link:
https://www.filescan.io/uploads/697f4450930564ff3c81c376/reports/b7762e09-a1fc-4a7a-8ad0-47afd5bf0a33/overview
Result
Gathering data
Verdict:
Malicious
File Type:
Elf
First seen:
2026-02-01T08:11:00Z UTC
Last seen:
2026-02-01T08:11:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b8fa7b0537fe23ba9b9bc3daa0d397d09e57bed774cf59f066a9400c2281d81f/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/14b64ae1-2fda-49b1-8c00-171d1512fb78
Behavior Graph:
Download SVG
%3 guuid=8f65f666-1700-0000-717b-eda5ba0b0000 pid=3002 /usr/bin/sudo guuid=5b3d046a-1700-0000-717b-eda5c00b0000 pid=3008 /tmp/sample.bin guuid=8f65f666-1700-0000-717b-eda5ba0b0000 pid=3002->guuid=5b3d046a-1700-0000-717b-eda5c00b0000 pid=3008 execve
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/33e568db-e2cc-4ea4-a86b-b7eef9d1db2d
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1861202
Signature
Drops files in suspicious directories
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample is packed with UPX
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1861202 Sample: ssh-agent-auth.arm.elf Startdate: 01/02/2026 Architecture: LINUX Score: 68 42 Multi AV Scanner detection for submitted file 2->42 44 Sample is packed with UPX 2->44 9 ssh-agent-auth.arm.elf 2->9         started        process3 signatures4 46 Sample deletes itself 9->46 12 ssh-agent-auth.arm.elf 9->12         started        process5 process6 14 ssh-agent-auth.arm.elf 12->14         started        file7 40 /etc/init.d/sysd, POSIX 14->40 dropped 48 Sample tries to set files in /etc globally writable 14->48 50 Drops files in suspicious directories 14->50 52 Sample tries to persist itself using System V runlevels 14->52 18 ssh-agent-auth.arm.elf sh 14->18         started        20 ssh-agent-auth.arm.elf 14->20         started        22 ssh-agent-auth.arm.elf 14->22         started        24 22 other processes 14->24 signatures8 process9 process10 26 sh cp 18->26         started        28 ssh-agent-auth.arm.elf 20->28         started        30 ssh-agent-auth.arm.elf 22->30         started        32 ssh-agent-auth.arm.elf 24->32         started        34 ssh-agent-auth.arm.elf 24->34         started        36 ssh-agent-auth.arm.elf 24->36         started        38 19 other processes 24->38
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b8fa7b0537fe23ba9b9bc3daa0d397d09e57bed774cf59f066a9400c2281d81f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b8fa7b0537fe23ba9b9bc3daa0d397d09e57bed774cf59f066a9400c2281d81f/
Threat name:
Linux.Trojan.Svirtu
Create hunting rule
Status:
Malicious
First seen:
2026-02-01 12:17:32 UTC
File Type:
ELF32 Little (Exe)
AV detection:
9 of 36 (25.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xd5hwbjx7yr3vg43ypnkbu4x2cpfppwxothvt4dgvfaayiub3apq._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Link:
https://tria.ge/reports/260201-pf69jadt5c/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/b8fa7b0537fe23ba9b9bc3daa0d397d09e57bed774cf59f066a9400c2281d81f

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

elf b8fa7b0537fe23ba9b9bc3daa0d397d09e57bed774cf59f066a9400c2281d81f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3766844/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3766864/

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