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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 883b4f018dea4deaa17783e4a9bd53e34e58087e7bfcbd6d8b1bd44ecf30a4b6. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 883b4f018dea4deaa17783e4a9bd53e34e58087e7bfcbd6d8b1bd44ecf30a4b6
SHA3-384 hash: e0e84fbc7fff12317a1ed4bc0d78a87e75563482e6f4e39f662a1409d4b5d8c9a038fb41bf2975d78f5d56f95e320869
SHA1 hash: e9585aa721180735b01c49aceae6a27ffe862cc0
MD5 hash: 10ff06416e985502896c3cfa5faad5c1
humanhash: eleven-beryllium-earth-uniform
File name:883b4f018dea4deaa17783e4a9bd53e34e58087e7bfcbd6d8b1bd44ecf30a4b6
Download: download sample
Signature GuLoader
Create hunting rule
File size:388'736 bytes
First seen:2025-10-09 14:48:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c05041e01f84e1ccca9c4451f3b6a383 (142 x RedLineStealer, 109 x GuLoader, 64 x DiamondFox)
ssdeep 6144:/gORajLOiPALFnpYcSTzowSf682cM9+w3RQi8Ykds/+CESpE0r1w8lnRPdd7tyft:/g/LRPinpYawSi8uUw3RHpk2/+JSph1+
Threatray 4'319 similar samples on MalwareBazaar
TLSH T10184232537D4C8B6FC211F301EB49A7A6FA2EBBE045693435710DF4DB861AE25A1F702
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 c4dadadad2f492c2 (148 x GuLoader, 51 x RemcosRAT, 23 x VIPKeylogger)
Reporter adrian__luca
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Tilgangstids
Issuer:Tilgangstids
Algorithm:sha256WithRSAEncryption
Valid from:2025-08-22T05:08:11Z
Valid to:2026-08-22T05:08:11Z
Serial number: 20d2a3788323e3d0a1e18f271fdfa51d8715edbd
Thumbprint Algorithm:SHA256
Thumbprint: ccd24b91c09372af7aefdab58b9409a596b00fea1a1a4c93a87a2932c8332ab1
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
82
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
883b4f018dea4deaa17783e4a9bd53e34e58087e7bfcbd6d8b1bd44ecf30a4b6
Verdict:
Malicious activity
Analysis date:
2025-10-08 14:29:36 UTC
Tags:
evasion
Link:
https://app.any.run/tasks/877e9661-d539-48ed-aef0-42a67b09b0ff

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/31695/
Detection(s):
SecuriteInfo.com.Trojan.Loader.1575.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68e7cd9923804d0975b62d3e
Tags:
injection obfusc blic
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Searching for the window
Creating a file in the %AppData% subdirectories
Creating a file
Delayed reading of the file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context installer microsoft_visual_cc obfuscated overlay signed similar-threat
Link:
https://www.filescan.io/uploads/68e7e1b15a3bccf09ebf7df9/reports/36a117e1-bace-4bf6-89e1-96df8a67b2d9/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/883b4f018dea4deaa17783e4a9bd53e34e58087e7bfcbd6d8b1bd44ecf30a4b6
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-24T08:24:00Z UTC
Last seen:
2025-10-01T13:29:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/883b4f018dea4deaa17783e4a9bd53e34e58087e7bfcbd6d8b1bd44ecf30a4b6/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/e55aedad-392c-489d-9bdd-8f45cabddca3
Score:
94%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/883b4f018dea4deaa17783e4a9bd53e34e58087e7bfcbd6d8b1bd44ecf30a4b6
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/10ff06416e985502896c3cfa5faad5c1
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/883b4f018dea4deaa17783e4a9bd53e34e58087e7bfcbd6d8b1bd44ecf30a4b6/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2025-10-08 17:09:05 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ra5u6amn5jg6vilxqpsktpkt4nhfqcd6pp6l23mldpke5tzqus3a._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
0c67ccd6b722d25bbe932693afe8d0895555d12442699122c8810d2d6610e2a8
GuLoader
0cb6636748ff6a60ebf1a4644a7b4c877f8a19edd8c7a2eac10b34d1bd7cbfbf
GuLoader
29032ae14e315863a55a0851c3e1c9cb246beb4513a279d8b1bf7fac97be6ff7
GuLoader
2bab4b4ef0cd5ce5f2dff0ddcbdfb7295c0d141fb4c88ec305268b24a3e23a5c
GuLoader
43753d7fe1487c758cfebd575c0818b13ef5c3c278a0fa9539e04fe1a86553eb
GuLoader
55118f31295208ddb2a3e7f18a340056c791d338d8375080cdf618c2bc01bd08
GuLoader
79866667d5cd578a1c6eda54a748ff9d316fff39064eecd282bc2a9ad8a5ac7d
GuLoader
da9c5f609ebbcf19aef3d6992d451ccbe4fa77858660f6861146d1a486e1d98e
GuLoader
ebb0272ecef9d8bf07a71b9ead8718760d27c4fdc334fe2de7a8b93237e61044
GuLoader
error
GuLoader
+ 4'309 additional samples on MalwareBazaar
Result
Malware family:
vipkeylogger
Create hunting rule
Score:
  10/10
Tags:
family:guloader family:vipkeylogger collection discovery downloader keylogger spyware stealer
Link:
https://tria.ge/reports/251009-tvhlyagn5w/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses Microsoft Outlook profiles
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Guloader family
Guloader,Cloudeye
VIPKeylogger
Vipkeylogger family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5dadb279-0535-47e6-ac0b-6f2930a5dfcb
Unpacked files
SH256 hash:
883b4f018dea4deaa17783e4a9bd53e34e58087e7bfcbd6d8b1bd44ecf30a4b6
MD5 hash:
10ff06416e985502896c3cfa5faad5c1
SHA1 hash:
e9585aa721180735b01c49aceae6a27ffe862cc0
Link:
https://www.unpac.me/results/d52ff093-6b45-4d27-bb99-3d6616884364/
SH256 hash:
6bf9cccd8a600f4d442efe201e8c07b49605ba35f49a4b3ab22fa2641748e156
MD5 hash:
48f3e7860e1de2b4e63ec744a5e9582a
SHA1 hash:
420c64d802a637c75a53efc8f748e1aede3d6dc6
Link:
https://www.unpac.me/results/d52ff093-6b45-4d27-bb99-3d6616884364/
SH256 hash:
7a9ddee34562cd3703f1502b5c70e99cd5bba15de2b6845a3555033d7f6cb2a5
MD5 hash:
564bb0373067e1785cba7e4c24aab4bf
SHA1 hash:
7c9416a01d821b10b2eef97b80899d24014d6fc1
Link:
https://www.unpac.me/results/d52ff093-6b45-4d27-bb99-3d6616884364/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/883b4f018dea/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.52
Link:
https://yomi.yoroi.company/submissions/883b4f018dea4deaa17783e4a9bd53e34e58087e7bfcbd6d8b1bd44ecf30a4b6

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.

Cape
Cape
https://www.capesandbox.com/analysis/31695/

Comments