MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9b98a60cb56ec8b3b05c5ebe0656afb6f42a5cb296c8c4fb2dccc283a2fe082. 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 3 File information Comments

SHA256 hash: a9b98a60cb56ec8b3b05c5ebe0656afb6f42a5cb296c8c4fb2dccc283a2fe082
SHA3-384 hash: 2cff5d7a8aa8f086070e64841ccc431b91e43f736c8c18c3f821ae58cbe3c0008a38d74dcefb4896ca2bb12563272677
SHA1 hash: 9a888c736f3ad1d8a7f8490268aa8467e82e2013
MD5 hash: a51c4ebd3f30df79b6c8f81dfb28d271
humanhash: ack-alpha-sierra-yellow
File name:RFQ#MV_HS pdf.exe
Download: download sample
Signature AgentTesla
File size:563'712 bytes
First seen:2023-04-24 07:59:53 UTC
Last seen:2023-05-13 22:56:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'743 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:SJxQLa4Nk4u8+X9JKVM5f5uVaqMjl8V8uBewJJT1OD:cQLXGFtJl5f5Q4Ke8M
Threatray 457 similar samples on MalwareBazaar
TLSH T146C41258926BB6EADDCD87BB4A242069037560536025D7BCC3E889CCCD42F8BFE4516F
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon e4e22964caece4e8 (8 x AgentTesla, 3 x Formbook, 2 x Loki)
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
262
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ#MV_HS pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-04-24 08:09:28 UTC
Tags:
n/a

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

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Launching a process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Result
Verdict:
UNKNOWN
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
Adds a directory exclusion to Windows Defender
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Sample uses string decryption to hide its real strings
Sigma detected: Scheduled temp file as task from temp location
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 852731 Sample: RFQ#MV_HS_pdf.exe Startdate: 24/04/2023 Architecture: WINDOWS Score: 100 47 Found malware configuration 2->47 49 Sigma detected: Scheduled temp file as task from temp location 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 5 other signatures 2->53 7 RFQ#MV_HS_pdf.exe 7 2->7         started        11 AEFxhUPvmw.exe 5 2->11         started        process3 file4 31 C:\Users\user\AppData\...\AEFxhUPvmw.exe, PE32 7->31 dropped 33 C:\Users\...\AEFxhUPvmw.exe:Zone.Identifier, ASCII 7->33 dropped 35 C:\Users\user\AppData\Local\...\tmp954D.tmp, XML 7->35 dropped 37 C:\Users\user\...\RFQ#MV_HS_pdf.exe.log, ASCII 7->37 dropped 55 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->55 57 Uses schtasks.exe or at.exe to add and modify task schedules 7->57 59 Adds a directory exclusion to Windows Defender 7->59 13 RFQ#MV_HS_pdf.exe 2 7->13         started        17 powershell.exe 20 7->17         started        19 schtasks.exe 1 7->19         started        61 Multi AV Scanner detection for dropped file 11->61 63 Machine Learning detection for dropped file 11->63 21 AEFxhUPvmw.exe 2 11->21         started        23 schtasks.exe 1 11->23         started        signatures5 process6 dnsIp7 39 maskanikenya.co.ke 170.10.161.27, 49717, 49722, 587 STEADFASTUS United States 13->39 41 mail.maskanikenya.co.ke 13->41 25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        43 mail.maskanikenya.co.ke 21->43 45 192.168.2.1 unknown unknown 21->45 65 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->65 67 Tries to steal Mail credentials (via file / registry access) 21->67 69 Tries to harvest and steal browser information (history, passwords, etc) 21->69 29 conhost.exe 23->29         started        signatures8 process9
Threat name:
Win32.Spyware.Negasteal
Status:
Malicious
First seen:
2023-04-24 02:14:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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
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:
5849f83e60ed03562ad424eb2a660ea73e9f4a61a190bd880daa408368a62846
MD5 hash:
e447ac71c3a9a2e1e6e01267bf4104ef
SHA1 hash:
d59e304bcfcd2694176f47b783762ec62f700dfb
SH256 hash:
4ba51bd98128f31843d6e019b903c51d058424cb7e45c34f37793830776a7e5b
MD5 hash:
22b968f2d2691547aec6bca5c355b032
SHA1 hash:
99f153d1561ee2a432959898e1d838779c52f94b
SH256 hash:
5a35ce1eac3915f8962c65128eaf7898297834ba34943728c8367c3ec8fc3b84
MD5 hash:
026338d6d1bdf428a856aa0c92361d43
SHA1 hash:
5f29e24fdd45aaa185fd1102b40073c9d49eba9a
SH256 hash:
e5518e76f14e87bcc58a705c6f8f3a686cbffefc0e55985d17a067adfddf3688
MD5 hash:
920a2854e9c183ad2ef7d5543c296d38
SHA1 hash:
2c20da753bdf6f1a46261e2c132dd42f75c94229
SH256 hash:
a9b98a60cb56ec8b3b05c5ebe0656afb6f42a5cb296c8c4fb2dccc283a2fe082
MD5 hash:
a51c4ebd3f30df79b6c8f81dfb28d271
SHA1 hash:
9a888c736f3ad1d8a7f8490268aa8467e82e2013
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:BitcoinAddress
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
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 a9b98a60cb56ec8b3b05c5ebe0656afb6f42a5cb296c8c4fb2dccc283a2fe082

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments