MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7b45e5dc85e06ce7d05fef0596066df3a584200b25d9808051253152e886a963. 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



Gafgyt


Vendor detections: 7


Intelligence 7 IOCs YARA 20 File information Comments

SHA256 hash: 7b45e5dc85e06ce7d05fef0596066df3a584200b25d9808051253152e886a963
SHA3-384 hash: 04760bbf0b421211ab58cd730e5e9bd019633973c61f312c5519c8e11e07aed673dc464f4983afc568139ee46d4b970d
SHA1 hash: 2e4a440f025450fc63748bf27d242c0f53e693d1
MD5 hash: d0547ed4c19ac6224d863fb06b2fe487
humanhash: utah-johnny-winner-princess
File name:linux_arm5
Download: download sample
Signature Gafgyt
File size:4'259'840 bytes
First seen:2026-03-19 21:19:10 UTC
Last seen:2026-03-20 07:43:25 UTC
File type: elf
MIME type:application/x-executable
ssdeep 49152:qhZGX0VR2cie1wqdlFb4t8lCuYMgZz11:qhZGX0v2vivdlFlsu2
TLSH T1D4161857B8914682C0E4367ABCBE81C432A70FBD9B9A135B6D05FE383BBE1990D35714
telfhash t105b012e27c0e4ddd3797a0180c49410d24cc38c00f4162b5df00e10f9b09830f0ca0d2
gimphash e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
Magika elf
Reporter abuse_ch
Tags:elf gafgyt
File size (compressed) :1'708'880 bytes
File size (de-compressed) :4'259'840 bytes
Format:linux/arm
Packed file: d58724360b47456e9f5162b1ff011a2ae8b797be15a37ed80d01d96fb7faac5f

Intelligence


File Origin
# of uploads :
5
# of downloads :
79
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Manages services
Launching a process
Creating a process from a recently created file
Creating a file
Changes the time when the file was created, accessed, or modified
Creating a file in the %temp% directory
Deleting a recently created file
Writes files to system directory
Deletes a system binary file
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Gathering data
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
true
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
272
Number of processes launched:
117
Processes remaning?
true
Remote TCP ports scanned:
not identified
Behaviour
Anti-VM
Persistence
Process Renaming
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Behavior Graph:
%3 guuid=a1a5ecbb-1d00-0000-5590-cc3fc40a0000 pid=2756 /usr/bin/sudo guuid=a6583dbf-1d00-0000-5590-cc3fc50a0000 pid=2757 /tmp/sample.bin guuid=a1a5ecbb-1d00-0000-5590-cc3fc40a0000 pid=2756->guuid=a6583dbf-1d00-0000-5590-cc3fc50a0000 pid=2757 execve
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
76 / 100
Signature
Drops files in suspicious directories
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Writes ELF files to hidden directories
Writes identical ELF files to multiple locations
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1886626 Sample: linux_arm5.elf Startdate: 19/03/2026 Architecture: LINUX Score: 76 97 scan.504.su 199.48.247.167, 49714, 56999 GIGANEWSUS United States 2->97 9 systemd System.img-6.8.0-8 2->9         started        11 linux_arm5.elf 2->11         started        13 systemd snapd-env-generator 2->13         started        15 8 other processes 2->15 process3 process4 17 System.img-6.8.0-8 System.img-6.8.0-8 9->17         started        21 linux_arm5.elf linux_arm5.elf 11->21         started        file5 77 /usr/sbin/.write_test_n91p, ASCII 17->77 dropped 79 /usr/sbin/.write_test_j4sr, ASCII 17->79 dropped 81 /usr/sbin/.write_test_h5au, ASCII 17->81 dropped 89 32 other files (31 malicious) 17->89 dropped 99 Writes ELF files to hidden directories 17->99 101 Writes identical ELF files to multiple locations 17->101 103 Sample tries to persist itself using /etc/profile 17->103 109 3 other signatures 17->109 23 System.img-6.8.0-8 crontab 17->23         started        27 System.img-6.8.0-8 crontab 17->27         started        29 System.img-6.8.0-8 update-rc.d 17->29         started        37 16 other processes 17->37 83 /etc/init.d/systemd-logind.tmp_b6tu8, POSIX 21->83 dropped 85 /etc/init.d/.write_test_cn5q, ASCII 21->85 dropped 87 /boot/System.img-6.8.0-8.tmp_dxw0h, ELF 21->87 dropped 91 2 other files (none is malicious) 21->91 dropped 105 Drops files in suspicious directories 21->105 107 Sample tries to persist itself using System V runlevels 21->107 31 linux_arm5.elf sh 21->31         started        33 linux_arm5.elf update-rc.d 21->33         started        35 linux_arm5.elf update-rc.d 21->35         started        39 4 other processes 21->39 signatures6 process7 file8 93 /var/spool/cron/crontabs/tmp.JJ9PXz, ASCII 23->93 dropped 111 Sample tries to persist itself using cron 23->111 113 Executes the "crontab" command typically for achieving persistence 23->113 95 /var/spool/cron/crontabs/tmp.dE6yf9, ASCII 27->95 dropped 41 update-rc.d systemctl 29->41         started        43 sh System 31->43         started        115 Sample tries to persist itself using System V runlevels 33->115 45 update-rc.d systemctl 33->45         started        55 2 other processes 35->55 47 sh killai 37->47         started        49 sh .at.atloy 37->49         started        51 sh .font-unix-helpver 37->51         started        57 7 other processes 37->57 53 systemd-logind System.img-6.8.0-8 39->53         started        signatures9 process10 process11 59 System sleep 43->59         started        61 System System.img-6.8.0-8 43->61         started        69 5 other processes 43->69 63 killai sleep 47->63         started        71 4 other processes 47->71 65 .at.atloy sleep 49->65         started        73 2 other processes 49->73 67 .font-unix-helpver sleep 51->67         started        75 2 other processes 51->75
Threat name:
Linux.Trojan.Gafgyt
Status:
Malicious
First seen:
2026-03-19 21:19:42 UTC
File Type:
ELF32 Little (Exe)
AV detection:
6 of 24 (25.00%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery persistence privilege_escalation
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Writes file to tmp directory
Modifies Bash startup script
Creates/modifies environment variables
Modifies init.d
Modifies rc script
Executes dropped EXE
Please note that we are no longer able to provide a coverage score for Virus Total.

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:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DetectGoMethodSignatures
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
Rule name:Detect_Go_GOMAXPROCS
Author:Obscurity Labs LLC
Description:Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata
Rule name:enterpriseapps2
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:enterpriseunix2
Author:Tim Brown @timb_machine
Description:Enterprise UNIX
Rule name:F01_s1ckrule
Author:s1ckb017
Rule name:GoBinTest
Rule name:golang_binary_string
Description:Golang strings present
Rule name:Golang_Find_CSC846
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:Golang_Find_CSC846_Simple
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:ProgramLanguage_Golang
Author:albertzsigovits
Description:Application written in Golang programming language
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:setsockopt
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:unixredflags3
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:vmdetect
Author:nex
Description:Possibly employs anti-virtualization techniques

File information


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

Web download

Gafgyt

elf 7b45e5dc85e06ce7d05fef0596066df3a584200b25d9808051253152e886a963

(this sample)

  
Delivery method
Distributed via web download

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