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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 48f523c6335df41cd905843ebea2579080f5d58d1d0ae11e6043e93a5e4afd5a. 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: 17


Intelligence 17 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 48f523c6335df41cd905843ebea2579080f5d58d1d0ae11e6043e93a5e4afd5a
SHA3-384 hash: fd892115e3500cfcc7ee5f9df6fa21a76edc30291b4209092a58a2ed25346b09530a3c60590bbd1a951af1ca5c482243
SHA1 hash: a35238f76abd6e69803fd948f93c0b32c84aebab
MD5 hash: 00b3f28f936731e1715a5a30c54e40b0
humanhash: thirteen-rugby-sierra-fifteen
File name:Forvent91.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:493'040 bytes
First seen:2025-11-24 18:56:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 573bb7b41bc641bd95c0f5eec13c233b (66 x GuLoader, 32 x AgentTesla, 31 x RemcosRAT)
ssdeep 6144:H+MvoJieOE99BhtKXgB0Xou1oS0Bd3rYuSFuV/CPyhQ5LVdY4gx8L56kuqI0YDWB:H+mOSxojBlYHu5Gym9gxOt3LT
Threatray 2'302 similar samples on MalwareBazaar
TLSH T169A4F1E1E394CCA6DCA203B44877DC3621B7BD3A54B4462E162E7729BE77383542B44B
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 71e4c6a6cecccc79 (3 x GuLoader, 2 x VIPKeylogger)
Reporter James_inthe_box
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Musiceredes
Issuer:Musiceredes
Algorithm:sha256WithRSAEncryption
Valid from:2025-11-08T02:24:22Z
Valid to:2026-11-08T02:24:22Z
Serial number: 2a3abff4ebd03f769297c5779a4a6e8dec72f6f2
Thumbprint Algorithm:SHA256
Thumbprint: 145bf23dd18d86a2b47b8e3acde1a79c630791f37ec8f7784b0c82711fc79968
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
178
Origin country :
US US
Vendor Threat Intelligence
Malware family:
guloader
Create hunting rule
ID:
1
File name:
_48f523c6335df41cd905843ebea2579080f5d58d1d0ae11e6043e93a5e4afd5a.exe
Verdict:
Malicious activity
Analysis date:
2025-11-24 18:56:14 UTC
Tags:
evasion snake keylogger guloader telegram stealer
Link:
https://app.any.run/tasks/502518b6-52ab-4095-8823-8dcb6f3107ab

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/41382/
Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6924aa4d5d7fac83ebf2886e
Tags:
injection obfusc
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file in the %AppData% subdirectories
Sending a custom TCP request
Delayed reading of the file
Creating a file in the %temp% directory
Creating a file
Restart of the analyzed sample
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole exploit installer installer installer-heuristic microsoft_visual_cc nsis overlay signed
Link:
https://www.filescan.io/uploads/6924aa59f6a4ba1793af16b8/reports/5c43a3dc-8d01-4357-8ae7-bdf9b88dba18/overview
Verdict:
Malicious
Labled as:
Malware_51.0
Link:
https://www.hybrid-analysis.com/sample/48f523c6335df41cd905843ebea2579080f5d58d1d0ae11e6043e93a5e4afd5a
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-24T13:30:00Z UTC
Last seen:
2025-11-26T17:05:00Z UTC
Hits:
~1000
Detections:
VHO:Trojan.NSIS.Makoob.gen Trojan.NSIS.Makoob.qi Trojan.Win32.Guloader.sb Trojan.NSIS.Makoob.sba Trojan-Downloader.Win32.Minix.sb
Link:
https://opentip.kaspersky.com/48f523c6335df41cd905843ebea2579080f5d58d1d0ae11e6043e93a5e4afd5a/results?tab=lookup
Malware family:
Unlabeled
Create hunting rule
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/87b9de1d-0e9f-41a9-a0b3-6bbfdf9f8d3a
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/48f523c6335df41cd905843ebea2579080f5d58d1d0ae11e6043e93a5e4afd5a
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/00b3f28f936731e1715a5a30c54e40b0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/48f523c6335df41cd905843ebea2579080f5d58d1d0ae11e6043e93a5e4afd5a/
Verdict:
Malicious
Threat:
Family.SNAKE
Link:
https://tip.neiki.dev/file/48f523c6335df41cd905843ebea2579080f5d58d1d0ae11e6043e93a5e4afd5a
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-11-24 18:55:57 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
14 of 38 (36.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jd2shrrtlx2bzwifqq7l5isxscaplvmndufochtaiputuxsk7vna._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
40b64fa3728fc26d2fd93e659a85831142bed1da35bd5ce3033b99dc33f60d1d
GuLoader
48f523c6335df41cd905843ebea2579080f5d58d1d0ae11e6043e93a5e4afd5a
GuLoader
4d69e1c88a9ca803fd7f02395dc2f3a737c32a13fe6ee801cb908fb075cd0e86
GuLoader
551863be2e92aa2d319a92cda72bc2123233ee3a7e965ee691fd70d88c21d772
GuLoader
5dfcdc1c491fbf2f7f2fbac6bbf27b84be652583b66b252c46e8ed86577c3c60
GuLoader
67fd31f9b85ca5e31e0851c8a5f8f2f36343d884aa3dd7f26d4aa6c5d02b28fe
GuLoader
a509d90eaa00df8640c180439726fc0ed487dc30d236e19d1fc1514782e23671
GuLoader
b5d44eb79bb60df60b30f4157e958cb1a84c6ed93f2fb3767e96c573c27092e4
GuLoader
dd6d8363c2761f77948a54be192dbbe563d2da9dd8f922102547631ccbd05ebb
GuLoader
error
GuLoader
f273a1e122ed786626aa22fa45941da4f179fb7acc15a268749799f5137fa5c4
GuLoader
+ 2'292 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/251124-xljpesbl2w/
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 Program Files 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
Malware Config
C2 Extraction:
https://api.telegram.org/bot8522979734:AAGUCVHJ4F7jcgMVtktprGwu5rmXb6vJX7M/sendMessage?chat_id=7229870489
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/6ecd2373-3d80-44fa-afb4-e26080e8f891
Unpacked files
SH256 hash:
48f523c6335df41cd905843ebea2579080f5d58d1d0ae11e6043e93a5e4afd5a
MD5 hash:
00b3f28f936731e1715a5a30c54e40b0
SHA1 hash:
a35238f76abd6e69803fd948f93c0b32c84aebab
Link:
https://www.unpac.me/results/484bb672-a137-42f4-a820-c5390b66e03b/
SH256 hash:
4cf25411f28f639f72156c24b0f66ea42f5aee5973f6c137d901da6ae42d5b7e
MD5 hash:
4b8a750993567ac9a350ba9768fabfa0
SHA1 hash:
7ee7a8c313b292d62561b085c9d490c0f8065624
Link:
https://www.unpac.me/results/484bb672-a137-42f4-a820-c5390b66e03b/
SH256 hash:
8b4c47c4cf5e76ec57dd5a050d5acd832a0d532ee875d7b44f6cdaf68f90d37c
MD5 hash:
9b38a1b07a0ebc5c7e59e63346ecc2db
SHA1 hash:
97332a2ffcf12a3e3f27e7c05213b5d7faa13735
Link:
https://www.unpac.me/results/484bb672-a137-42f4-a820-c5390b66e03b/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/48f523c6335d/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/48f523c6335df41cd905843ebea2579080f5d58d1d0ae11e6043e93a5e4afd5a

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/41382/

Comments