MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 caff27b96786e8304233ceaa6e497790c2104c15c9cf55f694483c6ca8dbe4c3. 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


CoinMiner


Vendor detections: 7


Intelligence 7 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: caff27b96786e8304233ceaa6e497790c2104c15c9cf55f694483c6ca8dbe4c3
SHA3-384 hash: 775b4f86ceeaa2434e0e28790475c9522f72b81f7fd0e53edc97023d507070786baf301efba57e449d1b6619cdd8476f
SHA1 hash: d5db8cb3dbd840617c3887ea811e6b80f52b6e3c
MD5 hash: 1e36aa1b4561f62548aa566012f72d57
humanhash: montana-stream-cup-table
File name:poop
Download: download sample
Signature CoinMiner
Create hunting rule
File size:3'874'824 bytes
First seen:2026-03-05 02:20:23 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 49152:dXApe0ICGI2fyn/dp18Xwt3qupQ94ksj8yd5UxD6760zvfSKU5d8:dEq5fEpHpz5UxKz
TLSH T188065C17FCA114E9C4ABD2308AA69252BA71BC440B3027E72A90F7383F77FD05A79755
telfhash t1499213744abc74f2a2a6c995f373b0b4e13318b567e474b00027bd46efd1d8918a6c67
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:CoinMiner elf upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 bc4b8678d0fca85d3f80017b13e87f9b3eb8a279afe7f69db8f4fa7d65c3e5bc
File size (compressed) :1'309'484 bytes
File size (de-compressed) :3'874'824 bytes
Format:linux/amd64
Packed file: bc4b8678d0fca85d3f80017b13e87f9b3eb8a279afe7f69db8f4fa7d65c3e5bc

Intelligence

File Origin
# of uploads :
1
# of downloads :
105
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
base64 coinminer gcc golang
Link:
https://www.filescan.io/uploads/69a8e899cd25bfe1dfe0a9a4/reports/6153b8d3-a67f-4173-ace7-61d29bd600e7/overview
Verdict:
Adware
File Type:
elf.64.le
Link:
https://opentip.kaspersky.com/caff27b96786e8304233ceaa6e497790c2104c15c9cf55f694483c6ca8dbe4c3/results?tab=lookup
Gathering data
Result
Threat name:
Xmrig
Create hunting rule
Detection:
malicious
Classification:
mine
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/1878572
Signature
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
Score:
38%
Verdict:
Susipicious
File Type:
ELF
Link:
https://malprob.io/report/caff27b96786e8304233ceaa6e497790c2104c15c9cf55f694483c6ca8dbe4c3
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/caff27b96786e8304233ceaa6e497790c2104c15c9cf55f694483c6ca8dbe4c3/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zl7spolhq3udaqrtz2vg4slxsdbbatavzhhvl5uuja6gzkg34tbq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
credential_access defense_evasion discovery execution linux persistence privilege_escalation upx
Link:
https://tria.ge/reports/260305-cs32esax6w/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
System Network Configuration Discovery
Writes file to shm directory
Modifies Bash startup script
UPX packed file
Creates/modifies Cron job
Creates/modifies environment variables
Enumerates running processes
Modifies init.d
Modifies rc script
Writes file to system bin folder
Executes dropped EXE
Modifies PAM framework files
Modifies user home skeleton directory
Unexpected DNS network traffic destination
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/caff27b96786e8304233ceaa6e497790c2104c15c9cf55f694483c6ca8dbe4c3

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: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:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:F01_s1ckrule
Create hunting rule
Author:s1ckb017
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:ldpreload
Create hunting rule
Author:xorseed
Reference:https://stuff.rop.io/
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:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags

File information

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

Web download

CoinMiner

elf bc4b8678d0fca85d3f80017b13e87f9b3eb8a279afe7f69db8f4fa7d65c3e5bc

CoinMiner

elf caff27b96786e8304233ceaa6e497790c2104c15c9cf55f694483c6ca8dbe4c3

(this sample)

  
Dropped by
SHA256 bc4b8678d0fca85d3f80017b13e87f9b3eb8a279afe7f69db8f4fa7d65c3e5bc
  
URLhaus
https://urlhaus.abuse.ch/url/3772266/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 f61b1b6aab4b2f0ecbcc86c9f9ed583e
  
URLhaus
https://urlhaus.abuse.ch/url/3762421/
  
URLhaus
https://urlhaus.abuse.ch/url/3790743/

Comments