MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28beeb84738834b6c91be39dceee8a0d7e68e9c84d0e66ed4b77e0e84baa4a28. 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: 9


Intelligence 9 IOCs YARA 26 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 28beeb84738834b6c91be39dceee8a0d7e68e9c84d0e66ed4b77e0e84baa4a28
SHA3-384 hash: 9555a5a7fea2b0f4da192b8bf23efc80f9e67ae19f3d20507c5b6b5d2776a686fa938dbd6a3d3d56721bd8495278dc09
SHA1 hash: 34947d8981a4c6a59fa02dad03ae969df9ff3648
MD5 hash: c19571c8f3ce3fb160829515b760b21f
humanhash: magnesium-asparagus-zulu-quiet
File name:x86_64
Download: download sample
File size:8'443'816 bytes
First seen:2026-02-25 16:12:58 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 49152:n/CrO/q6/18hv1MFc8oz3XE8aSHAb5s9xUjALzpT39Fq2L6zg2uSHFCt/0jsWfqD:nqp1U8aDdszHE1zmNZozE
TLSH T119864A07EC9506E9C9ADD63089669213BA727C495B3063C33BA0F7293F77BD069B9740
gimphash e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
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 upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 df1765629fd2968e5dab6530712477ed728a56a59310ad225d25eb046fdf357c
File size (compressed) :2'450'924 bytes
File size (de-compressed) :8'443'816 bytes
Format:linux/amd64
Packed file: df1765629fd2968e5dab6530712477ed728a56a59310ad225d25eb046fdf357c

Intelligence

File Origin
# of uploads :
1
# of downloads :
75
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Detection(s):
Unix.Trojan.Mirai-10058922-0
Create hunting rule

Unix.Trojan.Mirai-10059005-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Receives data from a server
Changes access rights for a written file
Launching a process
Sends data to a server
Collects information on the OS
Creating a process from a recently created file
Creating a file
Changes the time when the file was created, accessed, or modified
Collects information on the CPU
Creating a file in the %temp% directory
Connection attempt
Creates or modifies files in /cron to set up autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm crypto golang
Link:
https://www.filescan.io/uploads/699f1fa097feb4afd65a5006/reports/9723c107-6564-4479-ac83-afff8e3a5fae/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
63
Number of processes launched:
13
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/28beeb84738834b6c91be39dceee8a0d7e68e9c84d0e66ed4b77e0e84baa4a28
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Unknown
File Type:
elf.64.le
Link:
https://opentip.kaspersky.com/28beeb84738834b6c91be39dceee8a0d7e68e9c84d0e66ed4b77e0e84baa4a28/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/f391f201-c9f4-49d6-89e8-b310927be2db
Behavior Graph:
Download SVG
%3 guuid=aa2938aa-1c00-0000-072e-4fd751090000 pid=2385 /usr/bin/sudo guuid=024d5bad-1c00-0000-072e-4fd758090000 pid=2392 /tmp/sample.bin guuid=aa2938aa-1c00-0000-072e-4fd751090000 pid=2385->guuid=024d5bad-1c00-0000-072e-4fd758090000 pid=2392 execve guuid=024d5bad-1c00-0000-072e-4fd758090000 pid=2407 /tmp/sample.bin guuid=024d5bad-1c00-0000-072e-4fd758090000 pid=2392->guuid=024d5bad-1c00-0000-072e-4fd758090000 pid=2407 clone guuid=024d5bad-1c00-0000-072e-4fd758090000 pid=2408 /tmp/sample.bin guuid=024d5bad-1c00-0000-072e-4fd758090000 pid=2392->guuid=024d5bad-1c00-0000-072e-4fd758090000 pid=2408 clone guuid=024d5bad-1c00-0000-072e-4fd758090000 pid=2409 /tmp/sample.bin guuid=024d5bad-1c00-0000-072e-4fd758090000 pid=2392->guuid=024d5bad-1c00-0000-072e-4fd758090000 pid=2409 clone guuid=024d5bad-1c00-0000-072e-4fd758090000 pid=2410 /tmp/sample.bin guuid=024d5bad-1c00-0000-072e-4fd758090000 pid=2392->guuid=024d5bad-1c00-0000-072e-4fd758090000 pid=2410 clone guuid=024d5bad-1c00-0000-072e-4fd758090000 pid=2411 /tmp/sample.bin guuid=024d5bad-1c00-0000-072e-4fd758090000 pid=2392->guuid=024d5bad-1c00-0000-072e-4fd758090000 pid=2411 clone guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2439 /tmp/sample.bin zombie guuid=024d5bad-1c00-0000-072e-4fd758090000 pid=2392->guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2439 execve guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2443 /tmp/sample.bin zombie guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2439->guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2443 clone guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2444 /tmp/sample.bin guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2439->guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2444 clone guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2445 /tmp/sample.bin guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2439->guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2445 clone guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2446 /tmp/sample.bin write-file zombie guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2439->guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2446 clone guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2457 /tmp/sample.bin guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2439->guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2457 clone guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2458 /tmp/sample.bin guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2439->guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2458 clone guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2478 /tmp/sample.bin guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2439->guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2478 clone guuid=a501e8d4-1c00-0000-072e-4fd7a3090000 pid=2467 /tmp/sample.bin guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2446->guuid=a501e8d4-1c00-0000-072e-4fd7a3090000 pid=2467 clone guuid=c142f6d4-1c00-0000-072e-4fd7a4090000 pid=2468 /usr/bin/pgrep guuid=1f5e8eca-1c00-0000-072e-4fd787090000 pid=2446->guuid=c142f6d4-1c00-0000-072e-4fd7a4090000 pid=2468 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/8d079291-30f8-4096-8f34-f078f74be006
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/1874832
Signature
Executes the "crontab" command typically for achieving persistence
Sample tries to persist itself using cron
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1874832 Sample: x86_64.elf Startdate: 25/02/2026 Architecture: LINUX Score: 48 39 169.254.169.254, 80 USDOSUS Reserved 2->39 41 5.59.248.236, 42660, 443 METRO-SET-ASMetrosetAutonomousSystemRU Czech Republic 2->41 43 6 other IPs or domains 2->43 9 x86_64.elf 2->9         started        11 dash rm 2->11         started        13 dash rm 2->13         started        15 python3.8 dpkg 2->15         started        process3 process4 17 x86_64.elf x86_64.elf 9->17         started        process5 19 x86_64.elf bash 17->19         started        21 x86_64.elf crontab 17->21         started        24 x86_64.elf pgrep 17->24         started        26 7 other processes 17->26 signatures6 28 bash crontab 19->28         started        32 bash 19->32         started        47 Executes the "crontab" command typically for achieving persistence 21->47 process7 file8 37 /var/spool/cron/crontabs/tmp.jof6jr, ASCII 28->37 dropped 49 Sample tries to persist itself using cron 28->49 51 Executes the "crontab" command typically for achieving persistence 28->51 34 bash crontab 32->34         started        signatures9 process10 signatures11 45 Executes the "crontab" command typically for achieving persistence 34->45
Score:
99%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/28beeb84738834b6c91be39dceee8a0d7e68e9c84d0e66ed4b77e0e84baa4a28
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/28beeb84738834b6c91be39dceee8a0d7e68e9c84d0e66ed4b77e0e84baa4a28/
Threat name:
Linux.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-02-25 16:13:55 UTC
File Type:
ELF64 Little (Exe)
AV detection:
2 of 36 (5.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fc7oxbdtra2lnsi34oo453ukbv7gr2oijuhgn3klo7qoqs5kjiua._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/260225-tpaddacy9e/
Behaviour
GoLang User-Agent
Enumerates kernel/hardware configuration
Reads runtime system information
Writes file to tmp directory
Reads CPU attributes
Creates/modifies Cron job
Enumerates running processes
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.59
Link:
https://yomi.yoroi.company/submissions/28beeb84738834b6c91be39dceee8a0d7e68e9c84d0e66ed4b77e0e84baa4a28

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
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:dependsonpythonailib
Create hunting rule
Author:Tim Brown
Description:Hunts for dependencies on Python AI libraries
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:DetectGoMethodSignatures
Create hunting rule
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
Rule name:Detect_Go_GOMAXPROCS
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:enterpriseunix2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise UNIX
Rule name:F01_s1ckrule
Create hunting rule
Author:s1ckb017
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:golang_binary_string
Create hunting rule
Description:Golang strings present
Rule name:golang_duffcopy_amd64
Create hunting rule
Rule name:Golang_Find_CSC846
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:Golang_Find_CSC846_Simple
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:identity_golang
Create hunting rule
Author:Eric Yocam
Description:find Golang malware
Rule name:linux_protocol_doh
Create hunting rule
Author:@_lubiedo
Description:DNS-over-HTTPS yara rule
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:ProgramLanguage_Golang
Create hunting rule
Author:albertzsigovits
Description:Application written in Golang programming language
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:vmdetect
Create hunting rule
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

elf df1765629fd2968e5dab6530712477ed728a56a59310ad225d25eb046fdf357c

elf 28beeb84738834b6c91be39dceee8a0d7e68e9c84d0e66ed4b77e0e84baa4a28

(this sample)

  
Dropped by
SHA256 df1765629fd2968e5dab6530712477ed728a56a59310ad225d25eb046fdf357c
  
URLhaus
https://urlhaus.abuse.ch/url/3785551/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3785560/
  
Dropped by
MD5 b8a04bd450a0e75ef46c11ba49a5f354

Comments