MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f7d8a1be89c0f1f607cecf4807ecccfdfe7230a0b83a942d552d5b969645f746. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f7d8a1be89c0f1f607cecf4807ecccfdfe7230a0b83a942d552d5b969645f746
SHA3-384 hash: 8fd54c3ed1b943d55b1d693ef8577830d25952a39b55782134f29154eeb0bab5bce6bab7eee2c48e02a6b6f3a2089437
SHA1 hash: c2b9d638ff7694801a0f400da2a16c5dd6216f02
MD5 hash: 04f4537b1f73eeacae2eb8faf7cbf993
humanhash: low-mountain-coffee-sweet
File name:scan.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:400'872 bytes
First seen:2026-02-02 05:56:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1f23f452093b5c1ff091a2f9fb4fa3e9 (296 x GuLoader, 46 x VIPKeylogger, 45 x RemcosRAT)
ssdeep 6144:xp+gg2d1ZGD0f7fvihr23mZJYrOfRVyFimXu14b82Hx4giW:H/GD0f7f6QmZhffzmX57agj
TLSH T1D284F005BF438A63C5218B3409E7D371377ADD40AE02771BE3C4F23CED622952A5A6DA
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 f0f0783cb8f0b184 (2 x GuLoader, 1 x RemcosRAT)
Reporter threatcat_ch
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Fireogtyvendedelenes
Issuer:Fireogtyvendedelenes
Algorithm:sha256WithRSAEncryption
Valid from:2025-12-17T04:20:41Z
Valid to:2026-12-17T04:20:41Z
Serial number: 5913e6a21817a89fde50e8a9c7a4276a44412c6b
Thumbprint Algorithm:SHA256
Thumbprint: 9fe8d9d6f54552d9fe5538b6c61425bd11a3aa3938d28c6f7ee145b8f7086f41
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
155
Origin country :
CH CH
Vendor Threat Intelligence
Gathering data
Malware family:
remcos
Create hunting rule
ID:
1
File name:
_f7d8a1be89c0f1f607cecf4807ecccfdfe7230a0b83a942d552d5b969645f746.exe
Verdict:
Malicious activity
Analysis date:
2026-02-02 05:57:44 UTC
Tags:
remcos rat auto-reg
Link:
https://app.any.run/tasks/b56ab2e0-32ea-477e-8acd-30507474c73d

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/51155/
Detection(s):
SecuriteInfo.com.Trojan.Inject6.17752.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69803cc4848d0f834c8ca423
Tags:
injection obfusc virus
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole installer installer installer-heuristic microsoft_visual_cc nsis signed soft-404
Link:
https://www.filescan.io/uploads/69803cc3930564ff3c82bf1d/reports/41d571c3-9890-4688-ab44-82cb40e46d20/overview
Verdict:
Malicious
Labled as:
Malware_55.1
Link:
https://www.hybrid-analysis.com/sample/f7d8a1be89c0f1f607cecf4807ecccfdfe7230a0b83a942d552d5b969645f746
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-02-02T02:20:00Z UTC
Last seen:
2026-02-02T09:42:00Z UTC
Hits:
~1000
Detections:
Trojan.NSIS.Makoob.sba VHO:Trojan.NSIS.GuLoader.gen Trojan-Downloader.Win32.Minix.sb HEUR:Trojan.Win32.Guloader.gen Trojan.Win32.Guloader.sb Trojan.NSIS.Makoob.sbb
Link:
https://opentip.kaspersky.com/f7d8a1be89c0f1f607cecf4807ecccfdfe7230a0b83a942d552d5b969645f746/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/f8cc4ca4-5962-400f-bbbf-1438318d0217
Result
Threat name:
Remcos, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1861414
Signature
AI detected suspicious PE digital signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Creates autostart registry keys with suspicious names
Detected Remcos RAT
Found malware configuration
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Unusual module load detection (module proxying)
Yara detected GuLoader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1861414 Sample: scan.exe Startdate: 02/02/2026 Architecture: WINDOWS Score: 100 56 130.12.182.225 DATAHOPDatahop-SixDegreesGB Canada 2->56 58 drive.usercontent.google.com 2->58 60 drive.google.com 2->60 66 Found malware configuration 2->66 68 Antivirus / Scanner detection for submitted sample 2->68 70 Multi AV Scanner detection for submitted file 2->70 72 4 other signatures 2->72 10 scan.exe 2 31 2->10         started        14 remcos.exe 2->14         started        signatures3 process4 file5 48 C:\Users\user\AppData\Local\...\System.dll, PE32 10->48 dropped 82 Tries to detect virtualization through RDTSC time measurements 10->82 84 Unusual module load detection (module proxying) 10->84 86 Switches to a custom stack to bypass stack traces 10->86 16 scan.exe 2 10 10->16         started        21 scan.exe 10->21         started        signatures6 process7 dnsIp8 52 drive.google.com 142.250.176.78, 443, 49693 GOOGLEUS United States 16->52 54 drive.usercontent.google.com 192.178.50.65, 443, 49694 GOOGLEUS United States 16->54 42 C:\ProgramData\Remcos\remcos.exe, PE32 16->42 dropped 44 C:\ProgramData\...\remcos.exe:Zone.Identifier, ASCII 16->44 dropped 62 Detected Remcos RAT 16->62 64 Creates autostart registry keys with suspicious names 16->64 23 remcos.exe 21 16->23         started        27 scan.exe 16->27         started        file9 signatures10 process11 file12 46 C:\Users\user\AppData\Local\...\System.dll, PE32 23->46 dropped 74 Antivirus detection for dropped file 23->74 76 Multi AV Scanner detection for dropped file 23->76 78 Tries to detect virtualization through RDTSC time measurements 23->78 80 Switches to a custom stack to bypass stack traces 23->80 29 remcos.exe 21 23->29         started        32 remcos.exe 23->32         started        signatures13 process14 file15 50 C:\Users\user\AppData\Local\...\System.dll, PE32 29->50 dropped 34 remcos.exe 29->34         started        36 remcos.exe 29->36         started        38 remcos.exe 29->38         started        40 20 other processes 29->40 process16
Score:
94%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f7d8a1be89c0f1f607cecf4807ecccfdfe7230a0b83a942d552d5b969645f746
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/04f4537b1f73eeacae2eb8faf7cbf993
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f7d8a1be89c0f1f607cecf4807ecccfdfe7230a0b83a942d552d5b969645f746/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/f7d8a1be89c0f1f607cecf4807ecccfdfe7230a0b83a942d552d5b969645f746
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Suspicious
First seen:
2026-02-02 05:50:32 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
14 of 38 (36.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=67mkdpujydy7mb6oz5eap3gm7x7hemfaxa5jilkvfvnznfsf65da._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
error
GuLoader
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery persistence rat
Link:
https://tria.ge/reports/260202-gnq9aaex9b/
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
Drops file in Program Files directory
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
Contacts third-party web service commonly abused for C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Detected Nirsoft tools
NirSoft MailPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
130.12.182.225:2404
Unpacked files
SH256 hash:
f7d8a1be89c0f1f607cecf4807ecccfdfe7230a0b83a942d552d5b969645f746
MD5 hash:
04f4537b1f73eeacae2eb8faf7cbf993
SHA1 hash:
c2b9d638ff7694801a0f400da2a16c5dd6216f02
Link:
https://www.unpac.me/results/145ee01f-54fd-42ba-9bbe-5844d9f92a20/
SH256 hash:
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
MD5 hash:
75ed96254fbf894e42058062b4b4f0d1
SHA1 hash:
996503f1383b49021eb3427bc28d13b5bbd11977
Link:
https://www.unpac.me/results/145ee01f-54fd-42ba-9bbe-5844d9f92a20/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f7d8a1be89c0/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/f7d8a1be89c0f1f607cecf4807ecccfdfe7230a0b83a942d552d5b969645f746

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 f7d8a1be89c0f1f607cecf4807ecccfdfe7230a0b83a942d552d5b969645f746

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/51155/

Comments