MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7fd4ecc26e3ba4b8c6c410dbcf8d4ca00054fc526e91123a6cdab4393191db07. 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 3 File information Comments

SHA256 hash: 7fd4ecc26e3ba4b8c6c410dbcf8d4ca00054fc526e91123a6cdab4393191db07
SHA3-384 hash: 1bfd09f43661ce1fbf09c518750f18543c3180db3ab0a2dee8e22b95644f569b74a6be200baf48814b727cb0867651a0
SHA1 hash: 1b68d129e1d7550fa671079a6f4b74aa0704db90
MD5 hash: 232e326192a221416a2318c16247a6f2
humanhash: social-island-crazy-five
File name:TRANSFERENCIA DE PAGO pdf.exe
Download: download sample
Signature GuLoader
File size:486'600 bytes
First seen:2026-02-27 10:33:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5f0c714c36e6cc016b3a1f4bc86559e4 (201 x GuLoader, 14 x Formbook, 4 x AgentTesla)
ssdeep 12288:YnqpyMcdbTayv9r1kPUT650dp3R0cdP4VP5:Ynqpydayv9r1kV0dFRj8P5
TLSH T1BFA4E092F691D9E6D83743B5993B6E301763BE2E99700B0F369C326D69B33920027D47
TrID 50.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
10.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.5% (.EXE) Win64 Executable (generic) (6522/11/2)
8.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.2% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter lowmal3
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Unrepulsive
Issuer:Unrepulsive
Algorithm:sha256WithRSAEncryption
Valid from:2026-01-20T10:10:26Z
Valid to:2027-01-20T10:10:26Z
Serial number: 71129abc507f433ce09512b01794abeffefc28e6
Thumbprint Algorithm:SHA256
Thumbprint: 547bd1df6346873337d89884ff44beba4fbb0feea59b07901a50cb0c89dc0a2b
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
1
# of downloads :
152
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_7fd4ecc26e3ba4b8c6c410dbcf8d4ca00054fc526e91123a6cdab4393191db07.exe
Verdict:
Malicious activity
Analysis date:
2026-02-27 10:34:34 UTC
Tags:
evasion snake keylogger telegram stealer spyware

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
81.4%
Tags:
underscore injection obfusc crypt
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole installer installer installer-heuristic microsoft_visual_cc nsis signed soft-404
Verdict:
Malicious
File Type:
exe x32
Detections:
HEUR:Trojan-Downloader.Win32.Minix.gen Trojan-Downloader.Win32.Minix.sb Trojan.Win32.Guloader.sb
Result
Threat name:
GuLoader, Snake Keylogger
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
AI detected suspicious PE digital signature
Antivirus / Scanner detection for submitted sample
Found malware configuration
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to detect the country of the analysis system (by using the IP)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Unusual module load detection (module proxying)
Uses the Telegram API (likely for C&C communication)
Yara detected GuLoader
Yara detected Snake Keylogger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Threat name:
Win32.Trojan.Nekark
Status:
Malicious
First seen:
2026-02-27 07:46:22 UTC
File Type:
PE (Exe)
Extracted files:
19
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
Result
Malware family:
vipkeylogger
Score:
  10/10
Tags:
family:vipkeylogger collection discovery installer keylogger spyware stealer
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
Contacts third-party web service commonly abused for 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
VIPKeylogger
Vipkeylogger family
Unpacked files
SH256 hash:
7fd4ecc26e3ba4b8c6c410dbcf8d4ca00054fc526e91123a6cdab4393191db07
MD5 hash:
232e326192a221416a2318c16247a6f2
SHA1 hash:
1b68d129e1d7550fa671079a6f4b74aa0704db90
SH256 hash:
c7a20bcaa0197aedddc8e4797bbb33fdf70d980f5e83c203d148121c2106d917
MD5 hash:
792b6f86e296d3904285b2bf67ccd7e0
SHA1 hash:
966b16f84697552747e0ddd19a4ba8ab5083af31
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Ins_NSIS_Buer_Nov_2020_1
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns

File information


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

Malspam

GuLoader

Executable exe 7fd4ecc26e3ba4b8c6c410dbcf8d4ca00054fc526e91123a6cdab4393191db07

(this sample)

  
Delivery method
Distributed via e-mail attachment

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