MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6a785fc98d9962b475ba45b90865158bf15bdbbdc9caea83ea3afc3a84fed246. 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


Intelligence 11 IOCs YARA 2 File information Comments

SHA256 hash: 6a785fc98d9962b475ba45b90865158bf15bdbbdc9caea83ea3afc3a84fed246
SHA3-384 hash: bc85dc82edb59d45d380cac436c5485d1de05663c71fc9a9641285058ad50d65daccec9db457209d03bcec006a550c53
SHA1 hash: 8e40dd502651cee37fd7ee1eca5d34a3183a54c8
MD5 hash: 95f1677bda0ecc9c08e5fa8df14c0e13
humanhash: fish-saturn-oranges-wisconsin
File name:Sales Contract DC-HHP-046.exe
Download: download sample
Signature GuLoader
File size:1'026'456 bytes
First seen:2023-12-04 09:09:00 UTC
Last seen:2023-12-04 10:33:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (533 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 12288:vp8FfEp4L+L/3FSr6RPO98wvpB6XFb6pwYETuWOmlHgKRKNIJX3hftGgNlsjQ:vpp4yckPyhBGx6ajNlHgKUKV3hIgnYQ
TLSH T18A2512D3F30C9596D4260B31186FCE191636ACA9AD618A0F21DA7F262FF73435C1F94A
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):PE icon
dhash icon c0c0d6eebaf434b4 (6 x GuLoader)
Reporter abuse_ch
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Balsameredes
Issuer:Balsameredes
Algorithm:sha256WithRSAEncryption
Valid from:2023-06-02T03:47:34Z
Valid to:2026-06-01T03:47:34Z
Serial number: 3c485910cda146b274699d29b1df12df5d4ce728
Thumbprint Algorithm:SHA256
Thumbprint: 386ae958db6319c70fc0526cc6ba4db01e2d2861e18b06f73677d8cac621bc06
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
2
# of downloads :
303
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file in the Windows subdirectories
Searching for the window
Creating a file
Sending a custom TCP request
Creating a file in the %temp% directory
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control installer lolbin overlay packed shell32
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.
Result
Threat name:
GuLoader, AgentTesla
Detection:
malicious
Classification:
troj.evad.spre.spyw
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Found malware configuration
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: MSBuild connects to smtp port
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
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2023-12-04 01:16:00 UTC
File Type:
PE (Exe)
Extracted files:
12
AV detection:
8 of 23 (34.78%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
agenttesla_v4 cloudeye agenttesla
Result
Malware family:
guloader
Score:
  10/10
Tags:
family:agenttesla family:guloader downloader keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Looks up external IP address via web service
Loads dropped DLL
AgentTesla
Guloader,Cloudeye
Unpacked files
SH256 hash:
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
MD5 hash:
0d7ad4f45dc6f5aa87f606d0331c6901
SHA1 hash:
48df0911f0484cbe2a8cdd5362140b63c41ee457
SH256 hash:
6a785fc98d9962b475ba45b90865158bf15bdbbdc9caea83ea3afc3a84fed246
MD5 hash:
95f1677bda0ecc9c08e5fa8df14c0e13
SHA1 hash:
8e40dd502651cee37fd7ee1eca5d34a3183a54c8
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:PE_Digital_Certificate
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

GuLoader

Executable exe 6a785fc98d9962b475ba45b90865158bf15bdbbdc9caea83ea3afc3a84fed246

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments