MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b639e6251b4d4677b39d7b5e67bd3b76b7e483bf1fe6c3b127a40972f11a884e. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b639e6251b4d4677b39d7b5e67bd3b76b7e483bf1fe6c3b127a40972f11a884e
SHA3-384 hash: 7ed2bddfaa1341662f94257fcd7a14960680825a01be9b0ca4a38fd1c63a53a0c8cb59ab1ce0a5006160f3d0099ac394
SHA1 hash: 9b7194570929b2079fcfc83d77175468d9979e93
MD5 hash: ed2e30a5040d0108f6434db0b0798eff
humanhash: comet-nineteen-two-stream
File name:k.php
Download: download sample
File size:19'491 bytes
First seen:2026-03-16 07:26:58 UTC
Last seen:Never
File type: sh
MIME type:text/x-shellscript
ssdeep 384:Lzk/xNd9xaBTfJs5P/uzsO9a4cbddrME8jyfzsO9a4cbddrME8jy4:LzC/aBTfGGzsP4cbddr7zsP4cbddrk
TLSH T175924BB816497D34F7C1DE799E3C2F0DAEE881C42124E39CFA0F3A215E516ADD60935A
TrID 70.0% (.SH) Linux/UNIX shell script (7000/1)
30.0% (.) Unix-like shebang (var.3) (gen) (3000/1)
Magika shell
Reporter abuse_ch
Tags:sh

Intelligence

File Origin
# of uploads :
1
# of downloads :
86
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Linux.MulDrop.187.14762.3623.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
evasive masquerade
Link:
https://www.filescan.io/uploads/69b7b0d7493cb7d62dff777e/reports/23dd7c55-ea05-4a61-9f1c-ac9cdeb84b7a/overview
Verdict:
Malicious
File Type:
unix shell
Detections:
HEUR:Trojan-Downloader.Shell.Agent.bc
Link:
https://opentip.kaspersky.com/b639e6251b4d4677b39d7b5e67bd3b76b7e483bf1fe6c3b127a40972f11a884e/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/3808a9e4-eb7b-4d8b-b7ab-be2401448ad9
Behavior Graph:
Download SVG
%3 guuid=4953637a-1600-0000-8ac3-a368750c0000 pid=3189 /usr/bin/sudo guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195 /tmp/sample.bin guuid=4953637a-1600-0000-8ac3-a368750c0000 pid=3189->guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195 execve guuid=5b7acd7c-1600-0000-8ac3-a3687c0c0000 pid=3196 /usr/bin/bash guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=5b7acd7c-1600-0000-8ac3-a3687c0c0000 pid=3196 clone guuid=6787d47c-1600-0000-8ac3-a3687d0c0000 pid=3197 /usr/bin/bash guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=6787d47c-1600-0000-8ac3-a3687d0c0000 pid=3197 clone guuid=7796f97c-1600-0000-8ac3-a3687f0c0000 pid=3199 /usr/bin/mkdir guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=7796f97c-1600-0000-8ac3-a3687f0c0000 pid=3199 execve guuid=8616707d-1600-0000-8ac3-a368810c0000 pid=3201 /usr/bin/mkdir guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=8616707d-1600-0000-8ac3-a368810c0000 pid=3201 execve guuid=ea10cc7d-1600-0000-8ac3-a368840c0000 pid=3204 /usr/bin/mkdir guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=ea10cc7d-1600-0000-8ac3-a368840c0000 pid=3204 execve guuid=99ca2e7e-1600-0000-8ac3-a368850c0000 pid=3205 /usr/bin/mkdir guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=99ca2e7e-1600-0000-8ac3-a368850c0000 pid=3205 execve guuid=80fead7e-1600-0000-8ac3-a368860c0000 pid=3206 /usr/bin/mkdir guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=80fead7e-1600-0000-8ac3-a368860c0000 pid=3206 execve guuid=4317367f-1600-0000-8ac3-a368870c0000 pid=3207 /usr/bin/mkdir guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=4317367f-1600-0000-8ac3-a368870c0000 pid=3207 execve guuid=27fcb97f-1600-0000-8ac3-a368880c0000 pid=3208 /usr/bin/mkdir guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=27fcb97f-1600-0000-8ac3-a368880c0000 pid=3208 execve guuid=af983e80-1600-0000-8ac3-a368890c0000 pid=3209 /usr/bin/cp guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=af983e80-1600-0000-8ac3-a368890c0000 pid=3209 execve guuid=a387ed80-1600-0000-8ac3-a3688a0c0000 pid=3210 /usr/bin/cp guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=a387ed80-1600-0000-8ac3-a3688a0c0000 pid=3210 execve guuid=a75ba681-1600-0000-8ac3-a3688b0c0000 pid=3211 /usr/bin/cp guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=a75ba681-1600-0000-8ac3-a3688b0c0000 pid=3211 execve guuid=4f355082-1600-0000-8ac3-a3688c0c0000 pid=3212 /usr/bin/cp guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=4f355082-1600-0000-8ac3-a3688c0c0000 pid=3212 execve guuid=4c642e83-1600-0000-8ac3-a3688d0c0000 pid=3213 /usr/bin/cp guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=4c642e83-1600-0000-8ac3-a3688d0c0000 pid=3213 execve guuid=feffa783-1600-0000-8ac3-a3688e0c0000 pid=3214 /usr/bin/cp guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=feffa783-1600-0000-8ac3-a3688e0c0000 pid=3214 execve guuid=93383884-1600-0000-8ac3-a3688f0c0000 pid=3215 /usr/bin/cp guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=93383884-1600-0000-8ac3-a3688f0c0000 pid=3215 execve guuid=8c67bf84-1600-0000-8ac3-a368900c0000 pid=3216 /usr/bin/cp guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=8c67bf84-1600-0000-8ac3-a368900c0000 pid=3216 execve guuid=526c4e85-1600-0000-8ac3-a368910c0000 pid=3217 /usr/bin/cp guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=526c4e85-1600-0000-8ac3-a368910c0000 pid=3217 execve guuid=fb8fd685-1600-0000-8ac3-a368920c0000 pid=3218 /usr/bin/cp guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=fb8fd685-1600-0000-8ac3-a368920c0000 pid=3218 execve guuid=8d7f6286-1600-0000-8ac3-a368930c0000 pid=3219 /usr/bin/cp guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=8d7f6286-1600-0000-8ac3-a368930c0000 pid=3219 execve guuid=3626ef86-1600-0000-8ac3-a368940c0000 pid=3220 /usr/bin/cp guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=3626ef86-1600-0000-8ac3-a368940c0000 pid=3220 execve guuid=1f8d7d87-1600-0000-8ac3-a368950c0000 pid=3221 /usr/bin/cp guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=1f8d7d87-1600-0000-8ac3-a368950c0000 pid=3221 execve guuid=1072fe87-1600-0000-8ac3-a368960c0000 pid=3222 /usr/bin/cp guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=1072fe87-1600-0000-8ac3-a368960c0000 pid=3222 execve guuid=aae88088-1600-0000-8ac3-a368970c0000 pid=3223 /usr/bin/cp guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=aae88088-1600-0000-8ac3-a368970c0000 pid=3223 execve guuid=69311189-1600-0000-8ac3-a368980c0000 pid=3224 /usr/bin/touch guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=69311189-1600-0000-8ac3-a368980c0000 pid=3224 execve guuid=a8b07b89-1600-0000-8ac3-a368990c0000 pid=3225 /usr/bin/bash guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=a8b07b89-1600-0000-8ac3-a368990c0000 pid=3225 clone guuid=06958c89-1600-0000-8ac3-a3689a0c0000 pid=3226 /usr/bin/bash guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=06958c89-1600-0000-8ac3-a3689a0c0000 pid=3226 clone guuid=074bc389-1600-0000-8ac3-a3689b0c0000 pid=3227 /usr/bin/bash guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=074bc389-1600-0000-8ac3-a3689b0c0000 pid=3227 clone guuid=d8c2cb89-1600-0000-8ac3-a3689c0c0000 pid=3228 /usr/bin/base64 write-file guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=d8c2cb89-1600-0000-8ac3-a3689c0c0000 pid=3228 execve guuid=dc48538a-1600-0000-8ac3-a3689d0c0000 pid=3229 /usr/bin/bash guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=dc48538a-1600-0000-8ac3-a3689d0c0000 pid=3229 execve guuid=b7dbad90-1600-0000-8ac3-a368ae0c0000 pid=3246 /usr/bin/rm delete-file guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=b7dbad90-1600-0000-8ac3-a368ae0c0000 pid=3246 execve guuid=cca50691-1600-0000-8ac3-a368af0c0000 pid=3247 /usr/bin/bash guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=cca50691-1600-0000-8ac3-a368af0c0000 pid=3247 clone guuid=0c490f91-1600-0000-8ac3-a368b00c0000 pid=3248 /usr/bin/bash guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=0c490f91-1600-0000-8ac3-a368b00c0000 pid=3248 clone guuid=ea692f91-1600-0000-8ac3-a368b20c0000 pid=3250 /usr/bin/bash guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=ea692f91-1600-0000-8ac3-a368b20c0000 pid=3250 execve guuid=28218a91-1600-0000-8ac3-a368b30c0000 pid=3251 /usr/bin/rm guuid=23426f7c-1600-0000-8ac3-a3687b0c0000 pid=3195->guuid=28218a91-1600-0000-8ac3-a368b30c0000 pid=3251 execve guuid=385ecb8a-1600-0000-8ac3-a3689e0c0000 pid=3230 /usr/bin/bash guuid=dc48538a-1600-0000-8ac3-a3689d0c0000 pid=3229->guuid=385ecb8a-1600-0000-8ac3-a3689e0c0000 pid=3230 clone guuid=3cd0d78a-1600-0000-8ac3-a3689f0c0000 pid=3231 /usr/bin/bash guuid=dc48538a-1600-0000-8ac3-a3689d0c0000 pid=3229->guuid=3cd0d78a-1600-0000-8ac3-a3689f0c0000 pid=3231 clone guuid=d5f1348b-1600-0000-8ac3-a368a00c0000 pid=3232 /usr/bin/ls guuid=dc48538a-1600-0000-8ac3-a3689d0c0000 pid=3229->guuid=d5f1348b-1600-0000-8ac3-a368a00c0000 pid=3232 execve guuid=c747dd8b-1600-0000-8ac3-a368a10c0000 pid=3233 /usr/bin/cat guuid=dc48538a-1600-0000-8ac3-a3689d0c0000 pid=3229->guuid=c747dd8b-1600-0000-8ac3-a368a10c0000 pid=3233 execve guuid=f7a52f8c-1600-0000-8ac3-a368a20c0000 pid=3234 /usr/bin/ls guuid=dc48538a-1600-0000-8ac3-a3689d0c0000 pid=3229->guuid=f7a52f8c-1600-0000-8ac3-a368a20c0000 pid=3234 execve guuid=9f49bc8c-1600-0000-8ac3-a368a30c0000 pid=3235 /usr/bin/mkdir guuid=dc48538a-1600-0000-8ac3-a3689d0c0000 pid=3229->guuid=9f49bc8c-1600-0000-8ac3-a368a30c0000 pid=3235 execve guuid=b3202d8d-1600-0000-8ac3-a368a40c0000 pid=3236 /usr/bin/mv guuid=dc48538a-1600-0000-8ac3-a3689d0c0000 pid=3229->guuid=b3202d8d-1600-0000-8ac3-a368a40c0000 pid=3236 execve guuid=ce62a68d-1600-0000-8ac3-a368a50c0000 pid=3237 /usr/bin/bash guuid=dc48538a-1600-0000-8ac3-a3689d0c0000 pid=3229->guuid=ce62a68d-1600-0000-8ac3-a368a50c0000 pid=3237 clone guuid=833eae8d-1600-0000-8ac3-a368a60c0000 pid=3238 /usr/bin/base64 write-file guuid=dc48538a-1600-0000-8ac3-a3689d0c0000 pid=3229->guuid=833eae8d-1600-0000-8ac3-a368a60c0000 pid=3238 execve guuid=3e58018e-1600-0000-8ac3-a368a70c0000 pid=3239 /usr/bin/rm delete-file guuid=dc48538a-1600-0000-8ac3-a3689d0c0000 pid=3229->guuid=3e58018e-1600-0000-8ac3-a368a70c0000 pid=3239 execve guuid=f25a648e-1600-0000-8ac3-a368a80c0000 pid=3240 /usr/bin/ls guuid=dc48538a-1600-0000-8ac3-a3689d0c0000 pid=3229->guuid=f25a648e-1600-0000-8ac3-a368a80c0000 pid=3240 execve guuid=8276ea8e-1600-0000-8ac3-a368a90c0000 pid=3241 /usr/bin/bash guuid=dc48538a-1600-0000-8ac3-a3689d0c0000 pid=3229->guuid=8276ea8e-1600-0000-8ac3-a368a90c0000 pid=3241 clone guuid=d196f28e-1600-0000-8ac3-a368aa0c0000 pid=3242 /usr/bin/base64 write-file guuid=dc48538a-1600-0000-8ac3-a3689d0c0000 pid=3229->guuid=d196f28e-1600-0000-8ac3-a368aa0c0000 pid=3242 execve guuid=a8b4508f-1600-0000-8ac3-a368ab0c0000 pid=3243 /usr/bin/ls guuid=dc48538a-1600-0000-8ac3-a3689d0c0000 pid=3229->guuid=a8b4508f-1600-0000-8ac3-a368ab0c0000 pid=3243 execve guuid=7e99c68f-1600-0000-8ac3-a368ac0c0000 pid=3244 /usr/bin/cat guuid=dc48538a-1600-0000-8ac3-a3689d0c0000 pid=3229->guuid=7e99c68f-1600-0000-8ac3-a368ac0c0000 pid=3244 execve guuid=f2ac1f90-1600-0000-8ac3-a368ad0c0000 pid=3245 /usr/bin/ls guuid=dc48538a-1600-0000-8ac3-a3689d0c0000 pid=3229->guuid=f2ac1f90-1600-0000-8ac3-a368ad0c0000 pid=3245 execve
Score:
82%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/b639e6251b4d4677b39d7b5e67bd3b76b7e483bf1fe6c3b127a40972f11a884e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b639e6251b4d4677b39d7b5e67bd3b76b7e483bf1fe6c3b127a40972f11a884e/
Verdict:
Malicious
Threat:
Trojan-Downloader.Shell.Agent
Link:
https://tip.neiki.dev/file/b639e6251b4d4677b39d7b5e67bd3b76b7e483bf1fe6c3b127a40972f11a884e
Threat name:
Script-Shell.Trojan.Vigorf
Create hunting rule
Status:
Malicious
First seen:
2026-03-16 07:27:32 UTC
File Type:
Text (Shell)
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wy46mji3jvdhpm45pnpgppj3o236ja57d7tmhmjhuqexf4i2rbha._file
Result
Malware family:
n/a
Score:
  4/10
Tags:
defense_evasion discovery linux
Link:
https://tria.ge/reports/260316-h98k5ae19y/
Behaviour
Reads runtime system information
Writes file to tmp directory
Deobfuscate/Decode Files or Information
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/b639e6251b4d4677b39d7b5e67bd3b76b7e483bf1fe6c3b127a40972f11a884e

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:SUSP_LNX_Base64_Exec_Apr24
Create hunting rule
Author:Christian Burkard
Description:Detects suspicious base64 encoded shell commands (as seen in Palo Alto CVE-2024-3400 exploitation)
Reference:Internal Research

File information

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

Web download

sh b639e6251b4d4677b39d7b5e67bd3b76b7e483bf1fe6c3b127a40972f11a884e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3784565/
  
Delivery method
Distributed via web download

Comments