MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f8082dc1210616c55008edc73e1ca4966cd8575e2425ed72f71f28b97f71172a. 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: | f8082dc1210616c55008edc73e1ca4966cd8575e2425ed72f71f28b97f71172a |
|---|---|
| SHA3-384 hash: | d5048dbfc8fae6abcc190c9d18612e76dc645d6e5b311c8f9077780a73731c3404b86c0495b6aec9ce6856e86ba44b96 |
| SHA1 hash: | 271cd8521dab65d5a9d127c5296acea983d29512 |
| MD5 hash: | 4ab4a3d1894572436b1af077779f4051 |
| humanhash: | uranus-illinois-cat-florida |
| File name: | Understregninger.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 329'795 bytes |
| First seen: | 2023-05-11 12:47:21 UTC |
| Last seen: | 2023-05-14 18:42:33 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 3abe302b6d9a1256e6a915429af4ffd2 (271 x GuLoader, 38 x Formbook, 25 x Loki) |
| ssdeep | 6144:ex4veXIVOy5YUVFAEhpjyecwKz0CawKMeedSvR:o4GXfg1X1cw40sFPd4 |
| Threatray | 850 similar samples on MalwareBazaar |
| TLSH | T1DB64127255B0CCF3DB3362704973996AC9FB585C50A1FB2A0F917E2AA932141EA0F1D6 |
| 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 | 7898b898b2b2ced6 (2 x GuLoader) |
| Reporter |  malwarelabnet |
| Tags: | AgentTesla exe GuLoader |
Intelligence
File Origin
# of uploads :
5
# of downloads :
287
Origin country :
CAVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Understregninger.exe
Verdict:
Malicious activity
Analysis date:
2023-05-11 12:49:44 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):
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Creating a file
Searching for the window
Sending a custom TCP request
Creating a file in the %temp% directory
Delayed reading of the file
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
buer guloader overlay packed shell32.dll trickbot
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
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, AgentTesla
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Signature
Found malware configuration
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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 Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected GuLoader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.GuLoader
Status:
Malicious
First seen:
2023-05-11 12:09:42 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
17 of 24 (70.83%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
unknown
Similar samples:
+ 840 additional samples on MalwareBazaar
Result
Malware family:
guloader
Score:
10/10
Tags:
family:agenttesla family:guloader discovery downloader keylogger spyware stealer trojan
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks installed software on the system
Looks up external IP address via web service
Checks QEMU agent file
Loads dropped DLL
AgentTesla
Guloader,Cloudeye
Malware Config
C2 Extraction:
https://api.telegram.org/bot6168599451:AAGNek51QMYNhL09hhnCcUs8a_1nMuD4d9s/
Unpacked files
SH256 hash:
a1390a78533c47e55cc364e97af431117126d04a7faed49390210ea3e89dd0e1
MD5 hash:
fbe295e5a1acfbd0a6271898f885fe6a
SHA1 hash:
d6d205922e61635472efb13c2bb92c9ac6cb96da
SH256 hash:
f8082dc1210616c55008edc73e1ca4966cd8575e2425ed72f71f28b97f71172a
MD5 hash:
4ab4a3d1894572436b1af077779f4051
SHA1 hash:
271cd8521dab65d5a9d127c5296acea983d29512
Malware family:
GuLoader
Verdict:
Malicious
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 |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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