MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99c45490a0578c8f57c0393d483fe38aca73778baff2d2b7ec5f89fe78d55541. 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: 13


Intelligence 13 IOCs YARA 6 File information Comments

SHA256 hash: 99c45490a0578c8f57c0393d483fe38aca73778baff2d2b7ec5f89fe78d55541
SHA3-384 hash: fbf1cdc1561853750fdcebb219703672729ec5c22347ff7d882abc7253e46f558c6d4cbd55144ae487fb85b05fa1d60a
SHA1 hash: 2e94be6241f6c1eab33738b23373c913bd7bf398
MD5 hash: 5f76dfaed165967ccc8991ddbe43cf3f
humanhash: july-mississippi-louisiana-louisiana
File name:Ybpwdqa.exe
Download: download sample
Signature AgentTesla
File size:383'160 bytes
First seen:2023-08-22 20:14:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 384:MfRCSC/pdpn06CjFN8P3YsU6fCWYA8S/hs/E8sofOh/Q0RbnqyGt/Qz20BB8VR+T:ACrdM8sScz9Apqn+kVo6sLyYz
Threatray 6'152 similar samples on MalwareBazaar
TLSH T1A2849E063388CF25C51F15B6C8A3C2F81727BE00DD445BDB76C9FE2A79F22AA6951487
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 0f519373d9cc750b (107 x AgentTesla, 20 x AveMariaRAT, 5 x Formbook)
Reporter smica83
Tags:AgentTesla exe HUN

Intelligence


File Origin
# of uploads :
1
# of downloads :
333
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
Ybpwdqa.exe
Verdict:
Malicious activity
Analysis date:
2023-08-22 20:15:52 UTC
Tags:
stealer agenttesla

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

Behaviour
Creating a window
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a UDP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin overlay packed 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.
Malware family:
Generic Malware
Verdict:
Malicious
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Found malware configuration
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1295489 Sample: Ybpwdqa.exe Startdate: 22/08/2023 Architecture: WINDOWS Score: 100 32 Found malware configuration 2->32 34 Antivirus detection for URL or domain 2->34 36 Antivirus / Scanner detection for submitted sample 2->36 38 6 other signatures 2->38 7 Ybpwdqa.exe 15 4 2->7         started        process3 dnsIp4 26 web.fe.1drv.com 7->26 28 oqg1xq.db.files.1drv.com 7->28 30 2 other IPs or domains 7->30 40 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->40 42 Writes to foreign memory regions 7->42 44 Injects a PE file into a foreign processes 7->44 11 aspnet_compiler.exe 2 7->11         started        14 cmd.exe 1 7->14         started        16 cmd.exe 1 7->16         started        signatures5 process6 signatures7 46 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->46 48 Tries to steal Mail credentials (via file / registry access) 11->48 50 Tries to harvest and steal browser information (history, passwords, etc) 11->50 52 Installs a global keyboard hook 11->52 54 Uses ipconfig to lookup or modify the Windows network settings 14->54 18 conhost.exe 14->18         started        20 ipconfig.exe 1 14->20         started        22 conhost.exe 16->22         started        24 ipconfig.exe 1 16->24         started        process8
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-08-22 08:21:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
22 of 37 (59.46%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
99c45490a0578c8f57c0393d483fe38aca73778baff2d2b7ec5f89fe78d55541
MD5 hash:
5f76dfaed165967ccc8991ddbe43cf3f
SHA1 hash:
2e94be6241f6c1eab33738b23373c913bd7bf398
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:NETexecutableMicrosoft
Author:malware-lu
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
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.

Comments