MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 6c3503a56bb86000bf6e5719ef8ea6cf7e61bee2206139b6917a35caaa2bd1f9. 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: 11
| SHA256 hash: | 6c3503a56bb86000bf6e5719ef8ea6cf7e61bee2206139b6917a35caaa2bd1f9 |
|---|---|
| SHA3-384 hash: | 33cd1a3ca43a644c1331388e7ec6e9e8a3d77423c7d6576dd77a9f8e4d55a750a2356922013a6d4e3a972d49de9bf623 |
| SHA1 hash: | 4a25cf01281c7efb52896c4ac1ac0dde7cb6bcff |
| MD5 hash: | c8b8492da1bfa31b3de4c9ee2b14b120 |
| humanhash: | four-nebraska-mississippi-rugby |
| File name: | Certificado- FNMT.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 1'037'416 bytes |
| First seen: | 2023-10-18 10:09:11 UTC |
| Last seen: | 2023-10-23 12:16:45 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 6e7f9a29f2c85394521a08b9f31f6275 (292 x GuLoader, 51 x VIPKeylogger, 48 x RemcosRAT) |
| ssdeep | 24576:pTqMPCp7rLLLhnzhTRfX6ahX1DCb+H+JKjZMWSi:pTZPCdnnhnxRXhXNCqpVM5i |
| Threatray | 1'681 similar samples on MalwareBazaar |
| TLSH | T1492512473D0141A1EE7752309C2EC0A54F926D6EB896C6CFA291361C68F7FE346EB748 |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10523/12/4) 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) (4505/5/1) |
| Reporter |  TeamDreier |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | |
|---|---|
| Issuer: | |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2022-10-24T06:20:25Z |
| Valid to: | 2025-10-23T06:20:25Z |
| Serial number: | 241cd92f92bfe94d22f66f68d510cbc94cd9bcd4 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 5ea87cfe1b5d270b2ce269e692624c66c7ecba6c8d577e83726e41a86b9d0008 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
3
# of downloads :
312
Origin country :
DKVendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Clean
Maliciousness:
Behaviour
Searching for the window
Creating a window
Creating a file
Creating a file in the %temp% subdirectories
Searching for the Windows task manager window
Gathering data
Verdict:
Malicious
Threat level:
10/10
Confidence:
89%
Tags:
control installer lolbin overlay packed shell32
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Result
Threat name:
GuLoader
Detection:
malicious
Classification:
n/a
Score:
76 / 100
Signature
Antivirus / Scanner detection for submitted sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected GuLoader
Behaviour
Behavior Graph:
Score:
99%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.Generic
Status:
Malicious
First seen:
2023-10-18 01:46:46 UTC
File Type:
PE (Exe)
Extracted files:
16
AV detection:
17 of 36 (47.22%)
Threat level:
2/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 1'671 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Score:
10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Loads dropped DLL
AgentTesla
Unpacked files
SH256 hash:
6bf9cccd8a600f4d442efe201e8c07b49605ba35f49a4b3ab22fa2641748e156
MD5 hash:
48f3e7860e1de2b4e63ec744a5e9582a
SHA1 hash:
420c64d802a637c75a53efc8f748e1aede3d6dc6
SH256 hash:
1ece965ac1a7410c56c47532a43dd7e5b4db0263a8dca53f0554f7ff16003a8c
MD5 hash:
df3e949ba7901c3520698d403c7f1f5c
SHA1 hash:
6cd0bcdcd433cea81f90ecc1bf4e92e9a0d8fde2
SH256 hash:
c7f27113f393cff0409a09e5f07bba03f57349d19514640b2c0f3a627bc989a4
MD5 hash:
bc8a0be7f87919414f00ee3d731289d5
SHA1 hash:
13cd3f6e9c1007d758e42ddbd0c96ae18f27a434
SH256 hash:
6c3503a56bb86000bf6e5719ef8ea6cf7e61bee2206139b6917a35caaa2bd1f9
MD5 hash:
c8b8492da1bfa31b3de4c9ee2b14b120
SHA1 hash:
4a25cf01281c7efb52896c4ac1ac0dde7cb6bcff
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
GuLoader
Score:
0.90
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: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | QbotStuff |
|---|---|
| Author: | anonymous |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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