MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9b46ddb3ed98e2ca5e71253a69f686e1f618f724821eb98b52b812844117f33. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments

SHA256 hash: a9b46ddb3ed98e2ca5e71253a69f686e1f618f724821eb98b52b812844117f33
SHA3-384 hash: be2074c8e99e80f6018486511db559ef59954bc26f23a297768d44b3c6122810ae26230bb866d631be3c8d2ae0d727e2
SHA1 hash: 70c061619c4ebbbb111923257e76cd3cef5b3618
MD5 hash: 6753a24ed2a75dbd488c0a1783f03d05
humanhash: video-eighteen-network-cup
File name:B35@6B.exe
Download: download sample
Signature AgentTesla
File size:600'576 bytes
First seen:2022-07-24 15:52:42 UTC
Last seen:2022-07-24 16:34:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (32'074 x AgentTesla, 11'214 x Formbook, 6'133 x SnakeKeylogger)
ssdeep 12288:+HND4jk8+eBJ3VhdcZelUbQ/y9vwItbzdEaBy61I38b:+HND4jk8+eBJ3VYZelIv5bpEF61I
Threatray 18'138 similar samples on MalwareBazaar
TLSH T1E6D4E03A3F91A41CC13D07B1047A6AC1A372918A3755CB1EA4C7E3EADF5172BBF22059
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter @GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
359
Origin country :
CH CH
Mail intelligence
No data
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
–°reating synchronization primitives
DNS request
Sending a custom TCP request
Creating a window
Creating a file
Searching for synchronization primitives
Launching a process
Moving of the original file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm fareit 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 very large array initializations
Drops executable to a common third party application directory
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Moves itself to temp directory
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 672480 Sample: B35@6B.exe Startdate: 24/07/2022 Architecture: WINDOWS Score: 100 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 Yara detected AgentTesla 2->45 47 2 other signatures 2->47 7 B35@6B.exe 15 4 2->7         started        12 Acrobat.exe 4 2->12         started        14 Acrobat.exe 3 2->14         started        process3 dnsIp4 35 www.google.com 142.250.185.132, 443, 49713, 49714 GOOGLEUS United States 7->35 29 C:\Users\user\AppData\...\B35@6B.exe.log, ASCII 7->29 dropped 49 Moves itself to temp directory 7->49 51 Hides that the sample has been downloaded from the Internet (zone.identifier) 7->51 16 pot.exe 14 3 7->16         started        20 conhost.exe 12->20         started        22 conhost.exe 14->22         started        file5 signatures6 process7 dnsIp8 33 www.google.com 16->33 39 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->39 24 InstallUtil.exe 2 4 16->24         started        signatures9 process10 dnsIp11 37 multimetals.cfd 192.185.37.183, 49719, 49722, 587 UNIFIEDLAYER-AS-1US United States 24->37 31 C:\Users\user\AppData\Roaming\...\Acrobat.exe, PE32 24->31 dropped 53 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->53 55 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 24->55 57 Tries to steal Mail credentials (via file / registry access) 24->57 59 5 other signatures 24->59 file12 signatures13
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-07-24 10:58:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
141
AV detection:
22 of 39 (56.41%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
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
Adds Run key to start application
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
a9b46ddb3ed98e2ca5e71253a69f686e1f618f724821eb98b52b812844117f33
MD5 hash:
6753a24ed2a75dbd488c0a1783f03d05
SHA1 hash:
70c061619c4ebbbb111923257e76cd3cef5b3618

YARA Signatures


MalareBazaar uses YARA rules from several public and non-public repositories, such as Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious proccess dumps they may create. Please note that only results from TLP:WHITE rules are being displayeyd.

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 a9b46ddb3ed98e2ca5e71253a69f686e1f618f724821eb98b52b812844117f33

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

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