MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ecbff5a6e21170f5156f18ae42e78f6b2c38c36889fee23121683151b5e6e698. 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
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SHA256 hash: ecbff5a6e21170f5156f18ae42e78f6b2c38c36889fee23121683151b5e6e698
SHA3-384 hash: 03088e0f9ac920995d75c9e14d5de832f9eac36da6450f04ac786069b309e0ea8041500de909e11b30942c766d24ee8e
SHA1 hash: dc7a3d89df7c1dd8274188953acadcb0a44e1de7
MD5 hash: a8aa567062eab1bd3e967f60fc7afef9
humanhash: lamp-mississippi-bulldog-alpha
File name:QUOTATION.RFQ#65748930_A2023_MATERIALS_Pdf.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:474'800 bytes
First seen:2023-11-15 14:42:09 UTC
Last seen:2023-11-15 20:58:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 6e7f9a29f2c85394521a08b9f31f6275 (278 x GuLoader, 44 x RemcosRAT, 40 x VIPKeylogger)
ssdeep 12288:ZT5M1NNLv8oGC/w91psmh5SsAiM97ECBeP:ZT5eNBv8otSpZJvM97EZP
TLSH T139A40157B70C535EE36A9AB2383D47318BA89F5309526E0ABBC4FD6E113128DBD071D2
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 e2ee8a8eb6d8ecf4 (56 x AgentTesla, 39 x RemcosRAT, 38 x GuLoader)
Reporter James_inthe_box
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2023-09-30T08:02:50Z
Valid to:2026-09-29T08:02:50Z
Serial number: 79bfd1cf6e6aa70aa4f56c48ca47eeb3b30c979b
Thumbprint Algorithm:SHA256
Thumbprint: e35f6c41f1bfd5eb362d9b74efe465080d341fdf371cb6ad0f94992a8a2f45ea
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
327
Origin country :
US US
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/458742/
Detection(s):
SecuriteInfo.com.FileRepMalware.12657.12494.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Launching a process
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control installer lolbin masquerade overlay packed shell32
Link:
https://www.filescan.io/uploads/6554d92d2e3c004c994adca3/reports/d64d3f60-6e31-4c31-8a2c-683a2411c32d/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/ecbff5a6e21170f5156f18ae42e78f6b2c38c36889fee23121683151b5e6e698
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:
Malicious
Link:
https://analyze.intezer.com/analyses/58bcce5d-5075-4f9d-9be6-3690b8d244d9
Result
Threat name:
AgentTesla, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1343069
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Initial sample is a PE file and has a suspicious name
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Suspicious powershell command line found
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)
Uses the Telegram API (likely for C&C communication)
Very long command line found
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected GuLoader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1343069 Sample: QUOTATION.RFQ#65748930_A202... Startdate: 15/11/2023 Architecture: WINDOWS Score: 100 26 api4.ipify.org 2->26 28 api.telegram.org 2->28 30 api.ipify.org 2->30 38 Found malware configuration 2->38 40 Antivirus detection for URL or domain 2->40 42 Antivirus / Scanner detection for submitted sample 2->42 44 7 other signatures 2->44 9 QUOTATION.RFQ#65748930_A2023_MATERIALS_Pdf.exe 21 48 2->9         started        signatures3 process4 file5 24 C:\Users\user\AppData\...lektroniske.Bkk, data 9->24 dropped 12 powershell.exe 12 9->12         started        process6 signatures7 54 Suspicious powershell command line found 12->54 56 Very long command line found 12->56 58 Found suspicious powershell code related to unpacking or dynamic code loading 12->58 15 powershell.exe 15 12->15         started        18 conhost.exe 12->18         started        process8 signatures9 60 Writes to foreign memory regions 15->60 62 Maps a DLL or memory area into another process 15->62 20 MSBuild.exe 18 8 15->20         started        process10 dnsIp11 32 api4.ipify.org 64.185.227.156, 443, 49718 WEBNXUS United States 20->32 34 api.telegram.org 149.154.167.220, 443, 49719, 49720 TELEGRAMRU United Kingdom 20->34 36 69.174.100.3, 49717, 80 ASN-QUADRANET-GLOBALUS United States 20->36 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 20->46 48 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 20->48 50 Tries to steal Mail credentials (via file / registry access) 20->50 52 Tries to harvest and steal browser information (history, passwords, etc) 20->52 signatures12
Score:
94%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ecbff5a6e21170f5156f18ae42e78f6b2c38c36889fee23121683151b5e6e698
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ecbff5a6e21170f5156f18ae42e78f6b2c38c36889fee23121683151b5e6e698/
Threat name:
Win32.Trojan.Makoob
Create hunting rule
Status:
Malicious
First seen:
2023-11-15 07:46:55 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5s77ljxccfypkflpdcxefz4pnmwdrq3irh7oemjbnayvdnpg42ma._file
Verdict:
unknown
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/231115-r3kedscf41/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot6481437130:AAGm93uXebV7T0Bm8nZk-_xCqnjZ1-lrcpU/
Unpacked files
SH256 hash:
ecbff5a6e21170f5156f18ae42e78f6b2c38c36889fee23121683151b5e6e698
MD5 hash:
a8aa567062eab1bd3e967f60fc7afef9
SHA1 hash:
dc7a3d89df7c1dd8274188953acadcb0a44e1de7
Link:
https://www.unpac.me/results/70748617-d79c-40e7-97fd-31e66f28c754/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ecbff5a6e211/report/overview.html
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/ecbff5a6e21170f5156f18ae42e78f6b2c38c36889fee23121683151b5e6e698

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

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/458742/

Comments