🤲🏼 NEW | abuse.ch Community Hub! Earn recognition 🏅 for the malware intelligence you share, climb the leaderboards 📈, and connect with like-minded contributors who share your hunting focus 🤝. Ready to unlock your profile? Go to the Community Hub →

MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 177cfa885f0765b9f144317458a981980d76e123ecc2db7f5b93168bcc8a50a9. 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


GuLoader


Vendor detections: 18


Intelligence 18 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 177cfa885f0765b9f144317458a981980d76e123ecc2db7f5b93168bcc8a50a9
SHA3-384 hash: bed83182567c43eb31bc77aa9478424a2a92b02707e5859c85da42b9768c74ddc888f86dbc66730710c653f2e7ecfb24
SHA1 hash: 48b07a5bf44d6860b0f488ff0a4b6f998756db3e
MD5 hash: 4f20bef7ba4c424a36c7cdd0c28ade2f
humanhash: nitrogen-blue-diet-vegan
File name:rShippingdocumentsB112-1935ED085-19301939.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:601'304 bytes
First seen:2025-11-12 00:30:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 46ce5c12b293febbeb513b196aa7f843 (47 x GuLoader, 21 x RemcosRAT, 15 x AgentTesla)
ssdeep 12288:qX4j6f40DcylpOb/WVq5N99psmICxmGqzyJUalTt3a4+1Du4HkGQZ:04oD3lcTkOXFngGwyJ1Ft3aXJu4HjQZ
TLSH T131D402303544F45AC90EA23D4B5EF32E57B9EDE8260791979F50BF2E7D752838C0A889
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10522/11/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon 3068d0d8cce46431 (3 x RemcosRAT, 2 x GuLoader)
Reporter FXOLabs
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Dokumentfalsk
Issuer:Dokumentfalsk
Algorithm:sha256WithRSAEncryption
Valid from:2025-09-27T09:48:32Z
Valid to:2026-09-27T09:48:32Z
Serial number: 339ed3620bf1cc2290ee9147821d617d93bdc75b
Thumbprint Algorithm:SHA256
Thumbprint: c0914644c4d67997fc61cf71f5dc7ec80e6d185e182cdb8a70b620bb5b7d1769
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
184
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
rShippingdocumentsB112-1935ED085-19301939.exe
Verdict:
Malicious activity
Analysis date:
2025-11-12 00:31:08 UTC
Tags:
auto-reg rat remcos remote stealer mpress
Link:
https://app.any.run/tasks/ad40b7bf-0712-4d59-9c27-e87f0cbcf467

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Guloader
Create hunting rule
Link:
https://www.capesandbox.com/analysis/36974/
Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6913d536ac1ae236e1799fa1
Tags:
injection obfusc virus
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole installer installer installer-heuristic masquerade microsoft_visual_cc nsis overlay signed unsafe
Link:
https://www.filescan.io/uploads/6913d52e935d9f0d73ce9268/reports/c7d9fb34-97c4-44a5-a95d-79a51844ce29/overview
Verdict:
Malicious
Labled as:
Malware_55.6
Link:
https://www.hybrid-analysis.com/sample/177cfa885f0765b9f144317458a981980d76e123ecc2db7f5b93168bcc8a50a9
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-11T16:22:00Z UTC
Last seen:
2025-11-13T22:29:00Z UTC
Hits:
~10000
Detections:
VHO:Backdoor.Win32.Remcos.gen Trojan.Win32.GuLoader.sb Trojan.NSIS.Makoob.px PDM:Trojan.Win32.Generic Trojan-Downloader.Win32.Minix.sb Backdoor.Win32.Remcos.sb Trojan-Dropper.Win32.Injector.sb Trojan.NSIS.Makoob.sba HEUR:Trojan.NSIS.GuLoader.gen
Link:
https://opentip.kaspersky.com/177cfa885f0765b9f144317458a981980d76e123ecc2db7f5b93168bcc8a50a9/results?tab=lookup
Malware family:
WinEdt Team
Create hunting rule
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/a7592c75-d667-40e8-a548-3e920b598375
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/177cfa885f0765b9f144317458a981980d76e123ecc2db7f5b93168bcc8a50a9
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/4f20bef7ba4c424a36c7cdd0c28ade2f
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/177cfa885f0765b9f144317458a981980d76e123ecc2db7f5b93168bcc8a50a9/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/177cfa885f0765b9f144317458a981980d76e123ecc2db7f5b93168bcc8a50a9
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2025-11-11 19:21:02 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
12 of 23 (52.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=c56pvcc7a5s3t4kegf2frkmbtagxnyjd5tbnw723smlixtekkcuq._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:guloader family:remcos botnet:remotehost collection discovery downloader persistence rat
Link:
https://tria.ge/reports/251112-att4ssdr4s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Guloader family
Guloader,Cloudeye
Remcos
Remcos family
Malware Config
C2 Extraction:
196.251.116.206:2404
196.251.116.206:5000
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a2decdf7-dc53-4e77-ba86-ec6a2997b0c9
Unpacked files
SH256 hash:
177cfa885f0765b9f144317458a981980d76e123ecc2db7f5b93168bcc8a50a9
MD5 hash:
4f20bef7ba4c424a36c7cdd0c28ade2f
SHA1 hash:
48b07a5bf44d6860b0f488ff0a4b6f998756db3e
Link:
https://www.unpac.me/results/86acb3fc-6478-40a4-9b96-3a1dd1d96815/
SH256 hash:
8b4c47c4cf5e76ec57dd5a050d5acd832a0d532ee875d7b44f6cdaf68f90d37c
MD5 hash:
9b38a1b07a0ebc5c7e59e63346ecc2db
SHA1 hash:
97332a2ffcf12a3e3f27e7c05213b5d7faa13735
Link:
https://www.unpac.me/results/86acb3fc-6478-40a4-9b96-3a1dd1d96815/
SH256 hash:
b1350f487692057c8ffde75dcc55287a52a3272240d4d4912f24464b27551fc0
MD5 hash:
8f0e7415f33843431df308bb8e06af81
SHA1 hash:
1314272e6ad3be1985d4a1607b890a34b0bde8b5
Link:
https://www.unpac.me/results/86acb3fc-6478-40a4-9b96-3a1dd1d96815/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/177cfa885f07/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/177cfa885f0765b9f144317458a981980d76e123ecc2db7f5b93168bcc8a50a9

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:Detect_NSIS_Nullsoft_Installer
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects NSIS installers by .ndata section + NSIS header string
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

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

Malspam

GuLoader

Executable exe 177cfa885f0765b9f144317458a981980d76e123ecc2db7f5b93168bcc8a50a9

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/36974/

Comments