MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 808b922285d8c31562ea0c039dcc9f0100b2dcca2cd6cbd3c3945072796c1e00. 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: 10
| SHA256 hash: | 808b922285d8c31562ea0c039dcc9f0100b2dcca2cd6cbd3c3945072796c1e00 |
|---|---|
| SHA3-384 hash: | fda4007f902091adb25124c40daa76d6ca060638979884949980a7df5ccfa86027cf5043d34b3d227a3036e3acc66f2a |
| SHA1 hash: | 9bb7a42e079cae07b8c3419564d1f9a4b6b96ab9 |
| MD5 hash: | 8f550b099634290a0d6ab6478ec192db |
| humanhash: | december-fix-fish-low |
| File name: | KONGSBERG PO_049451.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 176'696 bytes |
| First seen: | 2022-11-07 13:54:09 UTC |
| Last seen: | 2022-11-07 16:25:05 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | b78ecf47c0a3e24a6f4af114e2d1f5de (300 x GuLoader, 23 x Formbook, 21 x RemcosRAT) |
| ssdeep | 3072:Q8bQCLmGlFIdcz/bnRgHV1QGBOt/ulfRTVxXHFm5RmF+OATNhyKjCmmZfS7:QyIAny1Q+k/0pTVxXHQSvATiKG+ |
| Threatray | 712 similar samples on MalwareBazaar |
| TLSH | T1CA0402531BD664BBFB56617004BAE72BCAB3D7800D21EA172B444F6E1D227C9EF0C189 |
| TrID | 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 16.4% (.EXE) Win64 Executable (generic) (10523/12/4) 10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 7.0% (.EXE) Win32 Executable (generic) (4505/5/1) |
| File icon (PE): |  |
| dhash icon | b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla) |
| Reporter |  malwarelabnet |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | |
|---|---|
| Issuer: | |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2022-07-08T11:31:35Z |
| Valid to: | 2025-07-07T11:31:35Z |
| Serial number: | -4268f60276d27572 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 91a10ed76cdf20c89fbf349367ce902a3c7975fc7d0e97206e2ecf3f52ad1f83 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
2
# of downloads :
149
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
guloader
ID:
1
File name:
KONGSBERG PO_049451.exe
Verdict:
Malicious activity
Analysis date:
2022-11-07 13:55:27 UTC
Tags:
guloader
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
Searching for the window
Creating a window
Creating a file in the %temp% subdirectories
Sending a custom TCP request
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
buer overlay packed shell32.dll
Result
Verdict:
UNKNOWN
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:
AgentTesla, GuLoader
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Signature
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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 ftp login credentials
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
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2022-11-07 13:55:06 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
17 of 26 (65.38%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 702 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
7/10
Tags:
n/a
Behaviour
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in System32 directory
Loads dropped DLL
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e
MD5 hash:
3f176d1ee13b0d7d6bd92e1c7a0b9bae
SHA1 hash:
fe582246792774c2c9dd15639ffa0aca90d6fd0b
SH256 hash:
808b922285d8c31562ea0c039dcc9f0100b2dcca2cd6cbd3c3945072796c1e00
MD5 hash:
8f550b099634290a0d6ab6478ec192db
SHA1 hash:
9bb7a42e079cae07b8c3419564d1f9a4b6b96ab9
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
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: | 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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