MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2eaac349a954d541baa7ecebb64870e6ff3bf161d5901b74821f49ce45337d6. 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


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a2eaac349a954d541baa7ecebb64870e6ff3bf161d5901b74821f49ce45337d6
SHA3-384 hash: 18d9b5f599622d2e2486a8957f6e3ddf8657964c267dde85627e496d79426d76804e079768133f346ec2fd115f4be1e4
SHA1 hash: e65eee9add5f43a4ae6471dee42008727cc060f3
MD5 hash: abc5618b5fb509686c4f56438d71c315
humanhash: single-grey-sink-grey
File name:new order S-01091.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:306'896 bytes
First seen:2023-05-04 06:13:19 UTC
Last seen:2023-05-04 06:43:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 4f67aeda01a0484282e8c59006b0b352 (51 x GuLoader, 9 x RemcosRAT, 9 x VIPKeylogger)
ssdeep 6144:K1onEmMMMMMjMMMMMMMVm674BZiOoG67WoTXb0ZEQkOZIFujo1XN+KOI:2odMMMMMjMMMMMMMVmA0QOsvbfCISS4M
Threatray 346 similar samples on MalwareBazaar
TLSH T1996412B675D38857D78556B0CFB1CA37E7B9EB400C37469B3BA02F17B9243229E08199
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 c4e8d8f6f2f8d8e4 (3 x GuLoader)
Reporter lowmal3
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-07-08T03:23:02Z
Valid to:2025-07-07T03:23:02Z
Serial number: 67659e384b914540b8252f8a30bd453277530bc0
Thumbprint Algorithm:SHA256
Thumbprint: 5ceae4b0fff5d6e824c6d5a573503a5b9797864edb6a50268f83dc3e83037b1b
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
3
# of downloads :
262
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
new order S-01091.png.exe
Verdict:
Malicious activity
Analysis date:
2023-05-03 06:27:47 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/6dcd7275-9d7b-4bea-9c7d-043efa120db0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/386376/
Detection(s):
SecuriteInfo.com.Adware.Generic12.HOD.14374.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Delayed reading of the file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/82388/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
buer comodo guloader overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/64534d2a1facab193c675277/reports/a28106c9-7781-4981-86dd-5b1da1063cc2/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/a2eaac349a954d541baa7ecebb64870e6ff3bf161d5901b74821f49ce45337d6
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/c60dfb0e-64e7-4a7c-89b4-ec97abd6eaa6
Result
Threat name:
GuLoader, AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1225820
Signature
Initial sample is a PE file and has a suspicious name
Multi AV Scanner detection for submitted file
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 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/a2eaac349a954d541baa7ecebb64870e6ff3bf161d5901b74821f49ce45337d6/
Threat name:
Win32.Trojan.NsisInject
Create hunting rule
Status:
Malicious
First seen:
2023-05-03 03:24:16 UTC
File Type:
PE (Exe)
Extracted files:
25
AV detection:
13 of 37 (35.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ulvkyne2svgvig5kp3hlwzehbzx7hpywdvmqdn2ieh2jzzctg7la._file
Verdict:
unknown
Similar samples:
06bbd56f97c98fe910af5904b60443fcbf1d88488f374f35d4a0423f045c7b4f
GuLoader
1aba3ebf5fc7d6221270fa7e13713216e06b678b197524a35d3a5cd9b1e0d857
GuLoader
3ad3e9feca98bd1c94415f0319340c3c9416541f4592f7373aeeab289a03c7ac
GuLoader
42d8660460520cc995d9e871953c424a6a95cba8796fa763fb9ebe46cbc7189d
GuLoader
449923544b5d76b31a84b7d58cc5cd72d44da67b5fa92f28f5dc603ce066abf0
GuLoader
75bb54e0d27dfeb0efa4680d7136307f9a82edef662e9fc3c4339b05b3fe7079
GuLoader
8808e4e220fcda37bdb05b703e86053f88a6ebd68037d37ef89754c459d7ad2b
GuLoader
b643d5ee1be492fcbfbfb4c9b9bf3da8460b74ab2097b96e6545318c92f2ee26
GuLoader
cb00912960bd9efbd3352d6146605739c47483001e1fec3e3dd710d62ca40646
GuLoader
f1d545ed6ad2433790b985ad84d102f937b16f44c09f32d9be33f95ef80b7d4d
GuLoader
+ 336 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230504-gzbb7scc2s/
Behaviour
Enumerates physical storage devices
Loads dropped DLL
Unpacked files
SH256 hash:
fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e
MD5 hash:
3f176d1ee13b0d7d6bd92e1c7a0b9bae
SHA1 hash:
fe582246792774c2c9dd15639ffa0aca90d6fd0b
Link:
https://www.unpac.me/results/333dd170-57fa-43fc-9ac5-04bee8b65b78/
SH256 hash:
a2eaac349a954d541baa7ecebb64870e6ff3bf161d5901b74821f49ce45337d6
MD5 hash:
abc5618b5fb509686c4f56438d71c315
SHA1 hash:
e65eee9add5f43a4ae6471dee42008727cc060f3
Link:
https://www.unpac.me/results/333dd170-57fa-43fc-9ac5-04bee8b65b78/
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:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
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 a2eaac349a954d541baa7ecebb64870e6ff3bf161d5901b74821f49ce45337d6

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/386376/

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