MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3d7428999a3bc90f003d9ea3673abc88c6d9988fc875d45c088dfe8f61fd3e0f. 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


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3d7428999a3bc90f003d9ea3673abc88c6d9988fc875d45c088dfe8f61fd3e0f
SHA3-384 hash: 67a78011b6e667781946fc46a551eb52c274702ad22da0ad404414458f418ccb27cb1ca2011bf5df687e2ab7caacb4df
SHA1 hash: 4fea89de3c93d412eaa08997c5c1469b01aa8685
MD5 hash: eb2542354569a66283b1e6aed028851e
humanhash: november-jersey-eleven-happy
File name:TT_ proof pdf.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:131'600 bytes
First seen:2022-07-21 10:34:37 UTC
Last seen:2022-07-21 12:00:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f10e4da994053bf80c20cee985b32e29 (65 x GuLoader, 9 x RemcosRAT, 6 x QuasarRAT)
ssdeep 3072:9Fi6z/VXzAf3oc6ubtjfslWvifbJRHo1VlIjqm1JC148L1qF1ZF1:9xFSNxfsZI1VWmm1JC5BqbP1
TLSH T184D301B213A0D493C7F742B119797217EFFD92A124E8960BB374BA84BC757C25A1F122
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):PE icon
dhash icon 32c83ce48c9c92ad (2 x GuLoader)
Reporter malwarelabnet
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:burglarise costbenefitanalysers skyllende
Issuer:burglarise costbenefitanalysers skyllende
Algorithm:sha256WithRSAEncryption
Valid from:2022-03-30T11:44:38Z
Valid to:2025-03-29T11:44:38Z
Serial number: 6ac5e6f6aa51abba
Thumbprint Algorithm:SHA256
Thumbprint: a5d73a9eff8726b333876d6b9a0fd01a2c00235051f196bc7a446dc91b5adfce
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
310
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/293142/
Detection(s):
SecuriteInfo.com.NSIS.Injector.ASH.1569.32297.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/26923/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
buer overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/62d92be6ee649612ac5f0ce3/reports/43e14acf-587b-44e3-bfc9-09bf989c50ce/overview
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
Link:
https://analyze.intezer.com/analyses/760d1591-1b1e-43c6-b0c8-14bb7395f40a
Result
Threat name:
AgentTesla, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1038508
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)
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:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3d7428999a3bc90f003d9ea3673abc88c6d9988fc875d45c088dfe8f61fd3e0f/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2022-07-21 07:09:45 UTC
File Type:
PE (Exe)
Extracted files:
9
AV detection:
10 of 26 (38.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hv2crgm2hpeq6ab5t2rwoov4rddntgepzb25ixairx7i6yp5hyhq._file
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader downloader
Link:
https://tria.ge/reports/220721-mmndwsegg7/
Behaviour
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
ae31bf87d51a9c7ebda72d7a23231604fedb11971b3ca1f5f3640e09a8092735
MD5 hash:
f42424635cc4377d9b3ec5c26092a365
SHA1 hash:
bb17f0fb865f8dddadc9c21b08b83bc0ce1609fa
Link:
https://www.unpac.me/results/7a81e536-a96a-4ab5-904a-e064904c807c/
SH256 hash:
c7a20bcaa0197aedddc8e4797bbb33fdf70d980f5e83c203d148121c2106d917
MD5 hash:
792b6f86e296d3904285b2bf67ccd7e0
SHA1 hash:
966b16f84697552747e0ddd19a4ba8ab5083af31
Link:
https://www.unpac.me/results/7a81e536-a96a-4ab5-904a-e064904c807c/
SH256 hash:
3d7428999a3bc90f003d9ea3673abc88c6d9988fc875d45c088dfe8f61fd3e0f
MD5 hash:
eb2542354569a66283b1e6aed028851e
SHA1 hash:
4fea89de3c93d412eaa08997c5c1469b01aa8685
Link:
https://www.unpac.me/results/7a81e536-a96a-4ab5-904a-e064904c807c/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3d7428999a3b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
GuLoader
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/3d7428999a3bc90f003d9ea3673abc88c6d9988fc875d45c088dfe8f61fd3e0f

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
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/293142/

Comments