MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4539d9c199b2fb7c37b08ab4ef32c6edd3e3e26f53f2289fa6ef3eb970cf8970. 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: | 4539d9c199b2fb7c37b08ab4ef32c6edd3e3e26f53f2289fa6ef3eb970cf8970 |
|---|---|
| SHA3-384 hash: | 094ab1571e1fdee0535aa71abaabd02d3a1637ae04bdc606e403340fc804c7495b3b4953e100f4aebd094628fcb84ca4 |
| SHA1 hash: | dd5a9e5ec93d26247aebcc72cf058e88ad610dd9 |
| MD5 hash: | b91c69a6f023f411f98c7a16454d29f0 |
| humanhash: | six-freddie-papa-mexico |
| File name: | Solicitud OFERTA - Gestamp Toledo.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 590'712 bytes |
| First seen: | 2022-07-11 10:45:55 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f10e4da994053bf80c20cee985b32e29 (65 x GuLoader, 9 x RemcosRAT, 6 x QuasarRAT) |
| ssdeep | 12288:lv3C9hzNvwo/O7mhgFGcjopkTklKHtSB9NR5LOkpKsVI41:lvS9hzNWKhYGc0pkTxShNZ1 |
| Threatray | 3'347 similar samples on MalwareBazaar |
| TLSH | T105C4126172D6E953D6A00171D6B3D29292F8FFF8EA14362BB386AF3F7E61501E506009 |
| 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 | be73f7f6b6a7c664 (1 x GuLoader) |
| Reporter |  lowmal3 |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | Matilde1 Mislabors4 Hovedrengring5 Reations1 |
|---|---|
| Issuer: | Matilde1 Mislabors4 Hovedrengring5 Reations1 |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2022-07-11T07:09:07Z |
| Valid to: | 2023-07-11T07:09:07Z |
| Serial number: | 346ab9a88ef1082e |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 53e40563246668b1f379de2c16ff4a2bd6d7fde397f9c9791989e43bee1eba6b |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
238
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Solicitud OFERTA - Gestamp Toledo.exe
Verdict:
Malicious activity
Analysis date:
2022-07-11 19:21:25 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
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file
Sending a custom TCP request
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
7.5/10
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
C2 URLs / IPs found in malware configuration
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)
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.Downloader.GuLoader
Status:
Malicious
First seen:
2022-07-11 09:13:38 UTC
File Type:
PE (Exe)
Extracted files:
7
AV detection:
13 of 26 (50.00%)
Threat level:
3/5
Detection(s):
Suspicious file
Verdict:
suspicious
Similar samples:
+ 3'337 additional samples on MalwareBazaar
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader discovery downloader
Behaviour
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Checks installed software on the system
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
c7a20bcaa0197aedddc8e4797bbb33fdf70d980f5e83c203d148121c2106d917
MD5 hash:
792b6f86e296d3904285b2bf67ccd7e0
SHA1 hash:
966b16f84697552747e0ddd19a4ba8ab5083af31
SH256 hash:
4539d9c199b2fb7c37b08ab4ef32c6edd3e3e26f53f2289fa6ef3eb970cf8970
MD5 hash:
b91c69a6f023f411f98c7a16454d29f0
SHA1 hash:
dd5a9e5ec93d26247aebcc72cf058e88ad610dd9
Malware family:
GuLoader
Verdict:
Malicious
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.
Malspam
Delivery method
Distributed via e-mail attachment
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.