MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6a861eb0176a0f7e0c4d69f2a65856d739bd4829448e72add40fabb9bf439634. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6a861eb0176a0f7e0c4d69f2a65856d739bd4829448e72add40fabb9bf439634
SHA3-384 hash: 23125dd9fa04a8feff3fde1fd10353c1398097f6f1460223de26e00534bf743bf2caf8755bc88f1d4c47f4b464846026
SHA1 hash: ace21507a35a9db273a704cfa741c606bb4f166d
MD5 hash: 5c18ec65c8c26f3757e9d19cc7f37fc3
humanhash: foxtrot-orange-virginia-nebraska
File name:PO-001.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:638'568 bytes
First seen:2024-01-11 14:08:13 UTC
Last seen:2024-01-11 15:19:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 429 x GuLoader)
ssdeep 12288:NYsmTCSUa1J3kR77kWX2h0hChIep9sO73QV4hdts2tCSgu:NY8SX1J3kVkv0hCvb3dtsIbgu
TLSH T14DD4F088ED97C456CDA853314B375D261699ED08B9BCB21F227CBA19FB331C340DB25A
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)
Reporter James_inthe_box
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Quinoxaline
Issuer:Quinoxaline
Algorithm:sha256WithRSAEncryption
Valid from:2023-06-24T23:03:47Z
Valid to:2026-06-23T23:03:47Z
Serial number: 1c4221e318d556a9d5c8feed05d35664b33b1a5a
Thumbprint Algorithm:SHA256
Thumbprint: 8d2f3e23f7053d853ce5a2c5786c0dab8c384cccd4663b8ea3cf2469165868cd
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
342
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO-001.zip
Verdict:
No threats detected
Analysis date:
2024-01-11 08:39:28 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f1cc4d24-b5b2-4594-abe0-c9d445a5331a

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/470388/
Detection(s):
SecuriteInfo.com.FileRepMalware.32035.1956.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Searching for the window
Creating a file in the %AppData% subdirectories
Creating a file
Delayed reading of the file
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control installer lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/659ff68399da41ccd7ceee71/reports/af1d7a18-0b07-4396-bdbc-ac7f55065e13/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/6a861eb0176a0f7e0c4d69f2a65856d739bd4829448e72add40fabb9bf439634
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/b8020f4c-ab63-4e0b-ba1b-fcd26d4b8b11
Result
Threat name:
GuLoader, AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spre.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1373101
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Check if machine is in data center or colocation facility
Creates multiple autostart registry keys
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: MSBuild connects to smtp port
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
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1373101 Sample: PO-001.exe Startdate: 11/01/2024 Architecture: WINDOWS Score: 100 30 mail.profilatieffe.it 2->30 32 ip-api.com 2->32 34 5 other IPs or domains 2->34 50 Found malware configuration 2->50 52 Antivirus detection for dropped file 2->52 54 Antivirus / Scanner detection for submitted sample 2->54 56 8 other signatures 2->56 7 PO-001.exe 1 49 2->7         started        11 XKJGamo.exe 2 2->11         started        13 XKJGamo.exe 1 2->13         started        signatures3 process4 file5 28 C:\Users\user\AppData\Local\...\System.dll, PE32 7->28 dropped 58 Writes to foreign memory regions 7->58 60 Maps a DLL or memory area into another process 7->60 15 MSBuild.exe 18 12 7->15         started        20 conhost.exe 11->20         started        22 conhost.exe 13->22         started        signatures6 process7 dnsIp8 36 mail.profilatieffe.it 167.235.35.159, 50118, 50119, 587 ALBERTSONSUS United States 15->36 38 api4.ipify.org 64.185.227.156, 443, 50116 WEBNXUS United States 15->38 40 3 other IPs or domains 15->40 24 C:\Users\user\subfolder1\Invitable.exe, PE32 15->24 dropped 26 C:\Users\user\AppData\Roaming\...\XKJGamo.exe, PE32 15->26 dropped 42 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->42 44 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 15->44 46 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->46 48 5 other signatures 15->48 file9 signatures10
Score:
94%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6a861eb0176a0f7e0c4d69f2a65856d739bd4829448e72add40fabb9bf439634
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6a861eb0176a0f7e0c4d69f2a65856d739bd4829448e72add40fabb9bf439634/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-01-10 17:24:05 UTC
File Type:
PE (Exe)
Extracted files:
15
AV detection:
17 of 24 (70.83%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nkdb5maxnihx4dcnnhzkmwcw24432sbjishhfloub6v3tp2dsy2a._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240111-rf4jrahcfk/
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
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Loads dropped DLL
AgentTesla
Unpacked files
SH256 hash:
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8
MD5 hash:
cff85c549d536f651d4fb8387f1976f2
SHA1 hash:
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e
Link:
https://www.unpac.me/results/2e08b157-cd9a-4816-8ea3-bb4e6a386364/
SH256 hash:
6a861eb0176a0f7e0c4d69f2a65856d739bd4829448e72add40fabb9bf439634
MD5 hash:
5c18ec65c8c26f3757e9d19cc7f37fc3
SHA1 hash:
ace21507a35a9db273a704cfa741c606bb4f166d
Link:
https://www.unpac.me/results/2e08b157-cd9a-4816-8ea3-bb4e6a386364/
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/6a861eb0176a0f7e0c4d69f2a65856d739bd4829448e72add40fabb9bf439634

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
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/470388/

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