MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9a1bf1c5e947aae9944c292b03f3424ef45a0058a96b9fbd8c454f5ae1d9d99. 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 3 File information Comments

SHA256 hash: b9a1bf1c5e947aae9944c292b03f3424ef45a0058a96b9fbd8c454f5ae1d9d99
SHA3-384 hash: 36d01a03f7e7b3228d509f793ba26acd140cbe4046b144d37011b29f17a6e703080d1858df9c4179601f526c9da1350a
SHA1 hash: a1bb8e7538407de65a41bc4086fa8c6185c8507c
MD5 hash: 9cbabab7bf38b7c105487ddaecfa5311
humanhash: orange-batman-fruit-artist
File name:QUOTATION_AUG7FIBA00541·PDF.scr
Download: download sample
Signature AgentTesla
File size:1'218'560 bytes
First seen:2023-09-01 20:08:23 UTC
Last seen:2023-09-11 13:26:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:Wo0wHBf3WdMofLvWBmSkuz41QgQGtP6jttisTwFRIoB1vCCaqwYnhKWeQxDWhyUk:CwleDvwmhu8RP6jttrwFenHMgIdv7e1
Threatray 6'162 similar samples on MalwareBazaar
TLSH T10645F0177630A472CD44C779D5E35D2482E3EE99A7E2D61964C9B36D0B323BE8F03286
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 7068ccb0b2b2b2f8 (129 x AgentTesla, 54 x SnakeKeylogger, 28 x AveMariaRAT)
Reporter abuse_ch
Tags:AgentTesla exe scr

Intelligence


File Origin
# of uploads :
3
# of downloads :
322
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
QUOTATION_AUG7FIBA00541·PDF.scr
Verdict:
Malicious activity
Analysis date:
2023-09-01 20:22:17 UTC
Tags:
stealer agenttesla

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a UDP request
DNS request
Creating a file
Creating a window
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed
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.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
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 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 steal Mail credentials (via file / registry access)
Uses ipconfig to lookup or modify the Windows network settings
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Threat name:
Win32.Spyware.Negasteal
Status:
Malicious
First seen:
2023-09-01 07:46:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
29
AV detection:
18 of 24 (75.00%)
Threat level:
  2/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
b9a1bf1c5e947aae9944c292b03f3424ef45a0058a96b9fbd8c454f5ae1d9d99
MD5 hash:
9cbabab7bf38b7c105487ddaecfa5311
SHA1 hash:
a1bb8e7538407de65a41bc4086fa8c6185c8507c
Malware family:
AgentTesla.v4
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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:NET
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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 b9a1bf1c5e947aae9944c292b03f3424ef45a0058a96b9fbd8c454f5ae1d9d99

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments