MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b54bed974b64bc6e3695af0333e973651cf7c2ff55a3ba97136daf8adfdc4543. 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


Guildma


Vendor detections: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b54bed974b64bc6e3695af0333e973651cf7c2ff55a3ba97136daf8adfdc4543
SHA3-384 hash: 41a221ad26535edf24f1c11f6a657e387793e3bbdbcd23731cf58493d9a6d97f71161c4fbabc7296acdadebaa08bcb6c
SHA1 hash: 67cb504c33b59a59e9a645e574f09702074ff1ea
MD5 hash: 77bd6b62cfd61a3db16aff6400f7f8b0
humanhash: lima-seventeen-august-hot
File name:Factura_Archivo3203222918.805847.51941.lNk
Download: download sample
Signature Guildma
Create hunting rule
File size:1'017 bytes
First seen:2023-04-20 12:36:36 UTC
Last seen:Never
File type:Shortcut (lnk) lnk
MIME type:application/octet-stream
ssdeep 24:8loGDFbrUTfz7aaG7a6a8s7aw40u77aS7ap7a4AtAtaYaRaDRk:8loGFbwTfXaaga6apa2Iacada49aYaRN
TLSH T10D11446993B90D7ED8B243B5CD359E0C98F5DCB60E5FE09ED6133048C9215E51F80615
Reporter abuse_ch
Tags:Astaroth BRA geo guildma lnk


Avatar
abuse_ch
Guildma payload delivery domains:
sathdusdaisybou.site
amanronxykri.com
manronxykrionline.com
mondroushi.com
manronxykrionline.com
mondroushi.com
amanronxykri.com

Guildma botnet C2 domains:
glothiralha.me
glothiralha.net
ronabetla.com
thramonor.com
thunmuschet.com
trigobats.com
turonbats.com

Intelligence

File Origin
# of uploads :
1
# of downloads :
178
Origin country :
CH CH
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28755.LnkHeur.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.28754.LnkHeur.UNOFFICIAL
Create hunting rule

TwinWave.EvilLNK.CMDLineCarrotsFoundationsOfDecay.M2.20220516.UNOFFICIAL
Create hunting rule

TwinWave.EvilLNK.CMDLineCarrotsFoundationsOfDecay.M3.20221011.UNOFFICIAL
Create hunting rule

TwinWave.EvilLNK.UnicodeSEOUL.20230417.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malicious
File Type:
LNK File - Malicious
Link:
https://app.docguard.net/b54bed974b64bc6e3695af0333e973651cf7c2ff55a3ba97136daf8adfdc4543/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd conhost wscript
Link:
https://www.filescan.io/uploads/644131ef51e4fa7a61fccd15/reports/f266a408-e561-47b9-8a87-79b47074e28c/overview
Verdict:
Malicious
Labled as:
Trojan.WinLNK.Agent
Link:
https://www.hybrid-analysis.com/sample/b54bed974b64bc6e3695af0333e973651cf7c2ff55a3ba97136daf8adfdc4543
Result
Verdict:
UNKNOWN
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1218000
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Obfuscated command line found
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Windows shortcut file (LNK) starts blacklisted processes
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b54bed974b64bc6e3695af0333e973651cf7c2ff55a3ba97136daf8adfdc4543/
Threat name:
Shortcut.Trojan.Runner
Create hunting rule
Status:
Malicious
First seen:
2023-04-20 12:37:06 UTC
File Type:
Binary
AV detection:
1 of 37 (2.70%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wvf63f2lms6g4nuvv4bth2ltmuoppqx7kwr3vfytnwxyvx64ivbq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/230420-ptf99sbh3w/
Behaviour
Modifies registry class
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Blocklisted process makes network request
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Astaroth
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/b54bed974b64bc6e3695af0333e973651cf7c2ff55a3ba97136daf8adfdc4543

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:Execution_in_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies execution artefacts in shortcut (LNK) files.
Rule name:EXE_in_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies executable artefacts in shortcut (LNK) files.
Rule name:Script_in_LNK
Create hunting rule
Author:@bartblaze
Description:Identifies scripting artefacts in shortcut (LNK) files.

File information

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

Web download

Guildma

Shortcut (lnk) lnk b54bed974b64bc6e3695af0333e973651cf7c2ff55a3ba97136daf8adfdc4543

(this sample)

Guildma

Java Script (JS) js 8f9bc3fccdeec5a952a95a6d34923ee92e45e77c3c8f20a9e519d44fe408b67c

  
Delivery method
Distributed via web download
  
Dropping
SHA256 8f9bc3fccdeec5a952a95a6d34923ee92e45e77c3c8f20a9e519d44fe408b67c
  
Dropping
MD5 7e6c6124bd06a2cd2280a2ae21080fb7

Comments