MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 91bbceef01278476add674f5c2bbedb02d1b05d9d33ed51a23689447c7574f59. 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: 9
| SHA256 hash: | 91bbceef01278476add674f5c2bbedb02d1b05d9d33ed51a23689447c7574f59 |
|---|---|
| SHA3-384 hash: | 53ff4e9da3238e3770d1162c017adb64bed18656f60a2d941aea4034e8debc2e1c62ead1966abd9f25aeacca29e13018 |
| SHA1 hash: | 58aa27e3c30ed56b44bd518896c28a9b217bccc1 |
| MD5 hash: | 4611091fb0dad8ffd534b8bb69c224a2 |
| humanhash: | three-thirteen-six-california |
| File name: | _IDEB_SCPRMO-1854705_230103_50592203.M1000827.PDF.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 836'192 bytes |
| First seen: | 2023-01-18 00:47:55 UTC |
| Last seen: | 2023-01-18 02:29:39 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 4ea4df5d94204fc550be1874e1b77ea7 (241 x GuLoader, 29 x RemcosRAT, 17 x VIPKeylogger) |
| ssdeep | 12288:KzHSwv6XXvvYraLYWYW/Hjx3wJAW/qsEmz:rY6XXI2LYWp/Hjx3c8Y |
| TLSH | T14B05AD1037804627C36287315EB9774976F4DC0CF61A6A97221CB74EAFB1BD2AB47398 |
| 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 | 4dd4f0b0b2b2b261 (2 x GuLoader) |
| Reporter |  malwarelabnet |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | Laniard |
|---|---|
| Issuer: | Laniard |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2023-01-17T21:52:14Z |
| Valid to: | 2026-01-16T21:52:14Z |
| Serial number: | -26e76355fb15f9e5 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 09a9d874ebc737a1c68a1b1196c139bd84d2dca4037eb5fdbfa601bd8409e8ad |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
2
# of downloads :
264
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_IDEB_SCPRMO-1854705_230103_50592203.M1000827.PDF.exe
Verdict:
Malicious activity
Analysis date:
2023-01-18 00:48:33 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
nemesis overlay packed shell32.dll
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:
Clipboard Hijacker, GuLoader
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Signature
Found many strings related to Crypto-Wallets (likely being stolen)
Initial sample is a PE file and has a suspicious name
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Capture Wi-Fi password
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)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal WLAN passwords
Tries to steal Mail credentials (via file / registry access)
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected Clipboard Hijacker
Yara detected Costura Assembly Loader
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2023-01-17 23:38:24 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
21 of 37 (56.76%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
unknown
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader collection discovery downloader persistence
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks installed software on the system
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Checks QEMU agent file
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
MD5 hash:
17ed1c86bd67e78ade4712be48a7d2bd
SHA1 hash:
1cc9fe86d6d6030b4dae45ecddce5907991c01a0
SH256 hash:
91bbceef01278476add674f5c2bbedb02d1b05d9d33ed51a23689447c7574f59
MD5 hash:
4611091fb0dad8ffd534b8bb69c224a2
SHA1 hash:
58aa27e3c30ed56b44bd518896c28a9b217bccc1
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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