MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 75b6aa1e75a213e7d4184249f86f3b8c4770ea2443ae77e7e6c4f499636b6f71. 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: | 75b6aa1e75a213e7d4184249f86f3b8c4770ea2443ae77e7e6c4f499636b6f71 |
|---|---|
| SHA3-384 hash: | efe84a310e13bcebd244b5d20190e0ca7a34e68797f6bb9f8de94ccba9be4bb8eb89f462d6075e49b2d6a57e74411bbc |
| SHA1 hash: | abe3333da5eba4aaa82b4bd4d1e4c44632d7b00a |
| MD5 hash: | 3c0e5d0926d261877e19a81e64f48d4c |
| humanhash: | glucose-uniform-mars-happy |
| File name: | z96176_000_pdf.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 351'208 bytes |
| First seen: | 2023-09-15 11:27:01 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 56a78d55f3f7af51443e58e0ce2fb5f6 (720 x GuLoader, 451 x Formbook, 295 x Loki) |
| ssdeep | 6144:mNeZxcBTDxlQ9rynwNSRtxUmFkl6KU6l36NUjEs2YEukuJ2J3zLf/2tSXhKj:mNycRNSVTS/xvF3KBl36NUjNOwO/rKj |
| Threatray | 2'582 similar samples on MalwareBazaar |
| TLSH | T119741280BBA5C862DE730E332832AF774FFABD0034B49B675361370E7571182955AB62 |
| 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) |
| File icon (PE): |  |
| dhash icon | eccc8c94d4d8e8f4 (21 x Formbook, 15 x AgentTesla, 5 x Loki) |
| Reporter |  FXOLabs |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | |
|---|---|
| Issuer: | |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2023-03-10T00:35:45Z |
| Valid to: | 2026-03-09T00:35:45Z |
| Serial number: | 5fd7adc0f60a0d66d9b75555d50ef45caf430e83 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | a2ea81135e5f96381bee34d47df67bba78b06e6bed8f0a54c2ef053b3d412f08 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
275
Origin country :
BRVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
z96176_000_pdf.exe
Verdict:
Suspicious activity
Analysis date:
2023-09-15 11:30:06 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Gathering data
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
control lolbin masquerade overlay packed shell32
Verdict:
Malicious
Labled as:
Tedy.Generic
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, Remcos
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
Installs a global keyboard hook
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Snort IDS alert for network traffic
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected GuLoader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2023-09-13 11:58:50 UTC
File Type:
PE (Exe)
Extracted files:
12
AV detection:
20 of 38 (52.63%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
remcos
cloudeye
Similar samples:
+ 2'572 additional samples on MalwareBazaar
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader downloader
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Drops file in System32 directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks QEMU agent file
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8
MD5 hash:
cff85c549d536f651d4fb8387f1976f2
SHA1 hash:
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e
SH256 hash:
18e8b40ba22c7a1687bd16e8d585380bc2773fff5002d7d67e9485fcc0c51026
MD5 hash:
68b287f4067ba013e34a1339afdb1ea8
SHA1 hash:
45ad585b3cc8e5a6af7b68f5d8269c97992130b3
SH256 hash:
75b6aa1e75a213e7d4184249f86f3b8c4770ea2443ae77e7e6c4f499636b6f71
MD5 hash:
3c0e5d0926d261877e19a81e64f48d4c
SHA1 hash:
abe3333da5eba4aaa82b4bd4d1e4c44632d7b00a
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | 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
Delivery method
Distributed via e-mail attachment
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