MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91f39eaf24b90582ffb859ec2f586c195ce13c252941ccf1e63314f05b80200f. 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


AgentTesla


Vendor detections: 16


Intelligence 16 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91f39eaf24b90582ffb859ec2f586c195ce13c252941ccf1e63314f05b80200f
SHA3-384 hash: f37a05e6197aebceb8950c6ae828d59197d266c6c6d9710571e240defe23ad9115cff288b974a13d149e888592252ced
SHA1 hash: 43dabc077554f1991f239c2ae3015546217caca7
MD5 hash: 70322101418183c5ad0135fbbec232af
humanhash: floor-virginia-washington-sierra
File name:RFQ #182044-13 PDF.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:494'592 bytes
First seen:2023-12-19 07:07:14 UTC
Last seen:2023-12-19 08:17:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:sEud4sL+C8T/HXB7h8hJn5B1z4DaD+JeLPmuJpQ+yBQRc:o8T/HXB7h831gxeD1LQ+JC
Threatray 540 similar samples on MalwareBazaar
TLSH T1C8B418C3F445348DF8DE827BB99A8E26E1D61D5E1D43180192713F44BFEEA9293C096E
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon d4903292e2ccb4c0 (13 x Formbook, 8 x AgentTesla, 4 x NanoCore)
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
290
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/468402/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.52212.1667.10334.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Reading critical registry keys
Creating a window
Sending a custom TCP request
DNS request
Searching for the window
Unauthorized injection to a recently created process
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6581415203487a0d25d3d5a1/reports/794bc066-77e7-496c-97c3-226ebab732af/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/91f39eaf24b90582ffb859ec2f586c195ce13c252941ccf1e63314f05b80200f
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/229cdb50-c71f-4c66-be3d-f6042b51e9b5
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1364341
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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
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)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/91f39eaf24b90582ffb859ec2f586c195ce13c252941ccf1e63314f05b80200f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/91f39eaf24b90582ffb859ec2f586c195ce13c252941ccf1e63314f05b80200f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-05-25 00:11:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=shzz5lzexecyf75ylhwc6wdmdfoocpbfffa4z4pggmkpaw4aeahq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
059c83df4a5e6c7a5de9e681465436478fde86d63c81d7d3849f588d5c80f397
AgentTesla
436f74f3d2537685ed53a9a83ae70cc1a98e987d90ba949ca879a854e2970ed9
AgentTesla
91f39eaf24b90582ffb859ec2f586c195ce13c252941ccf1e63314f05b80200f
AgentTesla
c073d55e30e424b99d07e376c38ca35b579dbd327da6be96cec527b0e3132ccd
AgentTesla
d3729ee774783f9a15211e79e021238418c97d4625631368f7c2e187678ba72a
AgentTesla
+ 530 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/231219-hx74tsghb9/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
b236dff0df818bbf4fbf78ff08490b00a1f6872c1db11d4cd2827189c72ed7d2
MD5 hash:
39910e89e009a951c7b7b36522f57c16
SHA1 hash:
f0a3c75ec22270e798ec7fe0367067b50d6a80d7
Link:
https://www.unpac.me/results/e016bf06-a346-4b1b-8e39-93d78f49ed17/
SH256 hash:
5c3db04179f2554568f9554fdc3013d4ba5c53d571890aa7f56ba1467c0f7fc6
MD5 hash:
be6b46f15a3439e140ed153cda25656d
SHA1 hash:
3594c8aa51f68c272deae879b70472643b464feb
Detections:
AgentTeslaXorStringsNet
Create hunting rule
MSIL_SUSP_OBFUSC_XorStringsNet
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
Link:
https://www.unpac.me/results/e016bf06-a346-4b1b-8e39-93d78f49ed17/
Parent samples :
91f39eaf24b90582ffb859ec2f586c195ce13c252941ccf1e63314f05b80200f
059c83df4a5e6c7a5de9e681465436478fde86d63c81d7d3849f588d5c80f397
SH256 hash:
dc2519d708fc215fc4b3e77282102c85fa556ce48568efba557f51241479aa6e
MD5 hash:
52b720e79d0ec0b264a37a2ec8f5e239
SHA1 hash:
094eaf3f74246f39ba2685e0e502d080925682d9
Detections:
MALWARE_Win_DLInjector02
Create hunting rule
Link:
https://www.unpac.me/results/e016bf06-a346-4b1b-8e39-93d78f49ed17/
SH256 hash:
91f39eaf24b90582ffb859ec2f586c195ce13c252941ccf1e63314f05b80200f
MD5 hash:
70322101418183c5ad0135fbbec232af
SHA1 hash:
43dabc077554f1991f239c2ae3015546217caca7
Link:
https://www.unpac.me/results/e016bf06-a346-4b1b-8e39-93d78f49ed17/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/91f39eaf24b9/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/91f39eaf24b90582ffb859ec2f586c195ce13c252941ccf1e63314f05b80200f

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:MSIL_SUSP_OBFUSC_XorStringsNet
Create hunting rule
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Reference:https://github.com/dr4k0nia/yara-rules
Rule name:msil_susp_obf_xorstringsnet
Create hunting rule
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

AgentTesla

Executable exe 91f39eaf24b90582ffb859ec2f586c195ce13c252941ccf1e63314f05b80200f

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/468402/

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