MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 412f983cf1fb087d9b21bed966aaf91b7468ed1c9f792fb32e5b0a6e9dbbf0c1. 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: 412f983cf1fb087d9b21bed966aaf91b7468ed1c9f792fb32e5b0a6e9dbbf0c1
SHA3-384 hash: 9ff03928c712f6764b5e9875698804f12de6627a550504f2864cbff9adeec5192bb6006635a769ef70b0357a062b6e45
SHA1 hash: 29139cf19cdb8a58e23be3d1b55558e323e51a23
MD5 hash: 9fb914c9a670ac3f2d7b43552c65ad10
humanhash: quebec-whiskey-nebraska-apart
File name:Quote##-PDF.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:579'728 bytes
First seen:2023-02-26 08:25:47 UTC
Last seen:2023-02-26 08:26:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (527 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 12288:a5POYhOuOiSmJPpqYxc6V1qc4hllvZbh9ReJ9ah+xeGSCXQ:oOYzOC8OjV34pZjRG0N
TLSH T1B2C4E02372106798FB3A4DF0002B5B8CDA109E1F246EE39E52E8B63957F51D7A73B614
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 f896968e8ea2cc00 (1 x GuLoader)
Reporter cocaman
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-12-25T11:47:36Z
Valid to:2025-12-24T11:47:36Z
Serial number: 568c8476f801cbee1f6e05de6adc786d9d68bab4
Thumbprint Algorithm:SHA256
Thumbprint: 2f97c6bc2da904f64ee69e2757fd8ed4cac1da1c82363cfe83f368a5e4e8bb54
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
198
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Quote##-PDF.exe
Verdict:
Malicious activity
Analysis date:
2023-02-24 17:32:18 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ca67bce4-8266-4fb7-830d-f096f35bf75b

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/369784/
Detection(s):
SecuriteInfo.com.Win32.Outbreak.16812.1953.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file
Creating a file in the %temp% subdirectories
Creating a file in the %AppData% directory
Delayed reading of the file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63fb179f589e1e4c5bd91cab/reports/8f1def92-579a-4327-b269-abd603a57ae8/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/412f983cf1fb087d9b21bed966aaf91b7468ed1c9f792fb32e5b0a6e9dbbf0c1
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/2e632017-ea7a-4133-8c11-bf7c5e569ce2
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1182548
Signature
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
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 steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 11757 Sample: Quote##-PDF.exe Startdate: 26/02/2023 Architecture: WINDOWS Score: 100 28 checkip.dyndns.org 2->28 30 checkip.dyndns.com 2->30 32 3 other IPs or domains 2->32 40 Snort IDS alert for network traffic 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 Yara detected GuLoader 2->44 46 3 other signatures 2->46 8 Quote##-PDF.exe 4 34 2->8         started        signatures3 process4 file5 20 C:\Users\user\AppData\Local\...\System.dll, PE32 8->20 dropped 22 C:\Users\user\AppData\Local\...\libthai-0.dll, PE32+ 8->22 dropped 24 C:\Users\user\...\AutoConnectHelper.exe, PE32 8->24 dropped 26 C:\Users\...\Atheros Outlook Addin 2010.dll, PE32+ 8->26 dropped 48 Writes to foreign memory regions 8->48 50 Tries to detect Any.run 8->50 12 CasPol.exe 15 11 8->12         started        signatures6 process7 dnsIp8 34 checkip.dyndns.com 132.226.247.73, 49855, 80 UTMEMUS United States 12->34 36 googlehosted.l.googleusercontent.com 142.250.184.225, 443, 49853 GOOGLEUS United States 12->36 38 drive.google.com 142.250.184.238, 443, 49852 GOOGLEUS United States 12->38 52 Tries to steal Mail credentials (via file / registry access) 12->52 54 Tries to harvest and steal ftp login credentials 12->54 56 Tries to harvest and steal browser information (history, passwords, etc) 12->56 58 Tries to detect Any.run 12->58 16 WerFault.exe 22 16 12->16         started        18 conhost.exe 12->18         started        signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/412f983cf1fb087d9b21bed966aaf91b7468ed1c9f792fb32e5b0a6e9dbbf0c1/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-02-24 14:52:31 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
8 of 39 (20.51%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iexzqphr7meh3gzbx3mwnkxzdn2gr3i4t54s7mzolmfg5hn36daq._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/230226-kbvygsgd42/
Behaviour
Enumerates physical storage devices
Checks installed software on the system
Loads dropped DLL
Unpacked files
SH256 hash:
f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
MD5 hash:
8b3830b9dbf87f84ddd3b26645fed3a0
SHA1 hash:
223bef1f19e644a610a0877d01eadc9e28299509
Link:
https://www.unpac.me/results/13ba7ad3-2fc1-41b8-ae9f-6040c2d97fea/
SH256 hash:
412f983cf1fb087d9b21bed966aaf91b7468ed1c9f792fb32e5b0a6e9dbbf0c1
MD5 hash:
9fb914c9a670ac3f2d7b43552c65ad10
SHA1 hash:
29139cf19cdb8a58e23be3d1b55558e323e51a23
Link:
https://www.unpac.me/results/13ba7ad3-2fc1-41b8-ae9f-6040c2d97fea/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/412f983cf1fb087d9b21bed966aaf91b7468ed1c9f792fb32e5b0a6e9dbbf0c1

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
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

tar 423efe05f8bcafa36531cb05aadd42fa0ac6a171de0fa5b9749755c7c3a13af7

GuLoader

Executable exe 412f983cf1fb087d9b21bed966aaf91b7468ed1c9f792fb32e5b0a6e9dbbf0c1

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 423efe05f8bcafa36531cb05aadd42fa0ac6a171de0fa5b9749755c7c3a13af7
  
Dropped by
SHA256 5f50b2bbd132ec4fcb465de520ce20c653579588069de9dc8f14579ebe2d062c
Cape
Cape
https://www.capesandbox.com/analysis/369784/
  
Dropped by
MD5 044283cc5bee1d0cdc415a9155061d51
  
Dropped by
MD5 4ce23c67160357c2102f8c5f6f669adf

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