MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 61e247e909bac54941a8d5746a808e3d760652cfeaafd34535a85e7f13d6cead. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 61e247e909bac54941a8d5746a808e3d760652cfeaafd34535a85e7f13d6cead
SHA3-384 hash: 2bb7b13bd6760a415506257d39272be2b7f098eabc451fa7a27cb73e5130dd35be7f83bcefdc2c2be97f37df71b80f66
SHA1 hash: 79e682e6a651aa74a4ea7fef64868b0e582b806d
MD5 hash: 9cd26ed910554ae5b86e53ef892e7117
humanhash: batman-bakerloo-emma-bravo
File name:9cd26ed910554ae5b86e53ef892e7117
Download: download sample
Signature GuLoader
Create hunting rule
File size:331'472 bytes
First seen:2023-08-03 05:05:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b78ecf47c0a3e24a6f4af114e2d1f5de (304 x GuLoader, 23 x Formbook, 21 x RemcosRAT)
ssdeep 6144:jBeEp+sUD8z87jwGOVDRXWTUG2Yt2HWu6/r7/2FGCnrO:7p+sUD8z87ERRX/1YtElPFlrO
TLSH T1B264233223C144E6EE434A739B6BAB75D6F3EB2505205EC763981FE3167EA819E150C3
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 9088a2f178b05e2c (6 x GuLoader, 1 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2023-04-24T07:58:01Z
Valid to:2026-04-23T07:58:01Z
Serial number: 26af684f9ed5661a98f96fa35d30360e848a69ee
Thumbprint Algorithm:SHA256
Thumbprint: 2086be0f4979f8aaa8945015e80a781e2e350eba30599f6909cea9c153891b19
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
295
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
guloader
Create hunting rule
ID:
1
File name:
9cd26ed910554ae5b86e53ef892e7117
Verdict:
Malicious activity
Analysis date:
2023-08-03 05:08:21 UTC
Tags:
guloader
Link:
https://app.any.run/tasks/818bb395-37ee-4df5-b9ec-f116ad38aa3e

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/439946/
Detection(s):
SecuriteInfo.com.Mal.Generic-S.31020.16397.20236.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% subdirectories
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/64cb35bb539838c2be520419/reports/9dd0ca56-a03f-4636-bee8-f715a77b2639/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/61e247e909bac54941a8d5746a808e3d760652cfeaafd34535a85e7f13d6cead
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/4f500362-08b4-4649-b1d1-b0ffd94b7353
Result
Threat name:
GuLoader, AgentTesla, SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1284819
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
Antivirus detection for URL or domain
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Creates a thread in another existing process (thread injection)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Installs a global keyboard hook
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
May check the online IP address of the machine
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)
Sample uses string decryption to hide its real strings
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
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 Costura Assembly Loader
Yara detected GuLoader
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1284819 Sample: s1dL3d8yiL.exe Startdate: 03/08/2023 Architecture: WINDOWS Score: 100 62 cletonmy.com 2->62 64 alpatrik.com 2->64 66 3 other IPs or domains 2->66 78 Snort IDS alert for network traffic 2->78 80 Multi AV Scanner detection for domain / URL 2->80 82 Found malware configuration 2->82 84 12 other signatures 2->84 10 s1dL3d8yiL.exe 33 2->10         started        14 jeftfdf 2->14         started        16 jeftfdf 2->16         started        signatures3 process4 file5 60 C:\Users\user\AppData\Local\...\System.dll, PE32 10->60 dropped 110 Writes to foreign memory regions 10->110 112 Tries to detect Any.run 10->112 18 ielowutil.exe 6 10->18         started        signatures6 process7 dnsIp8 68 198.46.176.189, 50379, 80 AS-COLOCROSSINGUS United States 18->68 86 Tries to detect Any.run 18->86 88 Maps a DLL or memory area into another process 18->88 90 Creates a thread in another existing process (thread injection) 18->90 22 explorer.exe 10 6 18->22 injected signatures9 process10 dnsIp11 72 alpatrik.com 141.8.193.5, 50381, 50382, 50383 SPRINTHOSTRU Russian Federation 22->72 74 cletonmy.com 172.105.103.207, 50380, 80 LINODE-APLinodeLLCUS United States 22->74 56 C:\Users\user\AppData\Local\Temp\1535.exe, PE32 22->56 dropped 58 C:\Users\user\AppData\Roaming\jeftfdf, PE32 22->58 dropped 102 System process connects to network (likely due to code injection or exploit) 22->102 104 Benign windows process drops PE files 22->104 106 Injects code into the Windows Explorer (explorer.exe) 22->106 108 2 other signatures 22->108 27 1535.exe 15 3 22->27         started        31 WinHlp.exe 22->31         started        33 WinHlp.exe 22->33         started        35 6 other processes 22->35 file12 signatures13 process14 dnsIp15 76 files.catbox.moe 108.181.20.35, 443, 50385, 50391 ASN852CA Canada 27->76 114 Antivirus detection for dropped file 27->114 116 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 27->116 118 Machine Learning detection for dropped file 27->118 37 1535.exe 27->37         started        42 1535.exe 27->42         started        44 1535.exe 27->44         started        120 Injects a PE file into a foreign processes 31->120 46 WinHlp.exe 31->46         started        48 WinHlp.exe 31->48         started        50 WinHlp.exe 33->50         started        122 System process connects to network (likely due to code injection or exploit) 35->122 124 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 35->124 126 Tries to steal Mail credentials (via file / registry access) 35->126 128 Tries to harvest and steal browser information (history, passwords, etc) 35->128 52 WerFault.exe 35->52         started        signatures16 process17 dnsIp18 70 api4.ipify.org 104.237.62.211, 443, 50388, 50393 WEBNXUS United States 37->70 54 C:\Users\user\AppData\Roaming\...\WinHlp.exe, PE32 37->54 dropped 92 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 37->92 94 Tries to steal Mail credentials (via file / registry access) 37->94 96 Hides that the sample has been downloaded from the Internet (zone.identifier) 37->96 98 Tries to harvest and steal browser information (history, passwords, etc) 50->98 100 Installs a global keyboard hook 50->100 file19 signatures20
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/61e247e909bac54941a8d5746a808e3d760652cfeaafd34535a85e7f13d6cead/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2023-08-02 01:54:18 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
9 of 38 (23.68%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mhrep2ijxlcusqni2v2gvaeohv3amuwp5kx5grjvvbph6e6wz2wq._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader downloader
Link:
https://tria.ge/reports/230803-frd8fsce9x/
Behaviour
Enumerates physical storage devices
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e
MD5 hash:
3f176d1ee13b0d7d6bd92e1c7a0b9bae
SHA1 hash:
fe582246792774c2c9dd15639ffa0aca90d6fd0b
Link:
https://www.unpac.me/results/a952ca6d-9c27-439c-aaba-c7eec9dd7aa7/
SH256 hash:
61e247e909bac54941a8d5746a808e3d760652cfeaafd34535a85e7f13d6cead
MD5 hash:
9cd26ed910554ae5b86e53ef892e7117
SHA1 hash:
79e682e6a651aa74a4ea7fef64868b0e582b806d
Link:
https://www.unpac.me/results/a952ca6d-9c27-439c-aaba-c7eec9dd7aa7/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/61e247e909bac54941a8d5746a808e3d760652cfeaafd34535a85e7f13d6cead

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

File information

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

Web download

GuLoader

Executable exe 61e247e909bac54941a8d5746a808e3d760652cfeaafd34535a85e7f13d6cead

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2696756/
Cape
Cape
https://www.capesandbox.com/analysis/439946/

Comments


Avatar
zbet commented on 2023-08-03 05:05:52 UTC

url : hxxp://198.46.176.189/680/IBS_Cortana.exe