MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 73b5723f64fa0da9704571c290a0025ebd9ef2a4a348331f44c77074b27e8cc0. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments

SHA256 hash: 73b5723f64fa0da9704571c290a0025ebd9ef2a4a348331f44c77074b27e8cc0
SHA3-384 hash: 9ae32db55990f398a4a79761883b02396588337827d95efb69087d3a301a4d2e5a0f90a392e6e5104d1839e29d00d6b3
SHA1 hash: b00efea601ebefda8efcddaac9fda1236a6e1dcf
MD5 hash: 0cc069caeb033f07c49e0349e394a383
humanhash: pluto-vegan-potato-april
File name:Tidinesses.exe
Download: download sample
Signature GuLoader
File size:1'095'632 bytes
First seen:2023-12-04 10:38:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (533 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 24576:WS1jK3DnOtfOo11zheWKDgkN4WnEWIHBlJNasLV4UNjGQJs3lEblp/:F1KDnOzMvJvExosLyUgOwIB
TLSH T1C93523526780C8E6CB7986785DAAEBE7AAB03D54B442130603E4FF2E3CB9753C51F506
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 beeac6caa2aadab6 (1 x GuLoader)
Reporter lowmal3
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:sampleram
Issuer:sampleram
Algorithm:sha256WithRSAEncryption
Valid from:2023-11-05T02:44:28Z
Valid to:2026-11-04T02:44:28Z
Serial number: 2d36729ef4f9ceeb8d8065fd4b41fc2680b99aad
Thumbprint Algorithm:SHA256
Thumbprint: e87bdd3ce2f7dc385eddd441d9fbd0a6159d25ce84ada5fa4bc37934a8fd5899
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
1
# of downloads :
354
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
Tidinesses.exe
Verdict:
Malicious activity
Analysis date:
2023-12-04 10:40:15 UTC
Tags:
formbook stealer spyware

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Found suspicious powershell code related to unpacking or dynamic code loading
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Powershell drops PE file
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2023-12-04 10:00:55 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
15 of 23 (65.22%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
guloader
Score:
  10/10
Tags:
family:guloader downloader
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
73b5723f64fa0da9704571c290a0025ebd9ef2a4a348331f44c77074b27e8cc0
MD5 hash:
0cc069caeb033f07c49e0349e394a383
SHA1 hash:
b00efea601ebefda8efcddaac9fda1236a6e1dcf
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 73b5723f64fa0da9704571c290a0025ebd9ef2a4a348331f44c77074b27e8cc0

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments