MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81baf55c19c00ec38dd62ea3b30a3af669be588442dc0648865f80195665d2b2. 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 2 File information Comments

SHA256 hash: 81baf55c19c00ec38dd62ea3b30a3af669be588442dc0648865f80195665d2b2
SHA3-384 hash: bac30da8ef1022bae1fe67cdd4d9cd154cd97d4944ab76c6527cc78c8f879f8a50c7214103d26ea779ea5d8841097055
SHA1 hash: 75623647a35d7bfbfc0df5dfc24646c8d53367d1
MD5 hash: ade71491b076ca7a43effaf0214dd030
humanhash: massachusetts-oklahoma-tennessee-beer
File name:4EBE6@3.exe
Download: download sample
Signature AgentTesla
File size:641'536 bytes
First seen:2022-08-05 09:29:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (31'208 x AgentTesla, 10'508 x Formbook, 5'466 x SnakeKeylogger)
ssdeep 6144:EJCAIlFP8EYO+nm5NhbQ26Ldtb5joi2lEfbi4xzn+CzXJFSf19M/6ETrM00nQbql:OO2m5F+dtmi22ZzxSf1q6B0sQuc9Gy
Threatray 18'337 similar samples on MalwareBazaar
TLSH T1C6D4BE4B7BA05922C07C37F381A556D0D3F2E0CE595DCB8A88CAB3EA2B733816D55953
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter @TeamDreier
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
250
Origin country :
DK DK
Mail intelligence
No data
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4EBE6@3.exe
Verdict:
Malicious activity
Analysis date:
2022-08-05 09:31:03 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
–°reating synchronization primitives
DNS request
Sending a custom TCP request
Creating a window
Creating a file
Moving of the original file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
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
Antivirus / Scanner detection for submitted sample
Drops executable to a common third party application directory
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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 steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 679195 Sample: 4EBE6@3.exe Startdate: 05/08/2022 Architecture: WINDOWS Score: 100 29 multimetals.cfd 2->29 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus / Scanner detection for submitted sample 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 3 other signatures 2->47 8 4EBE6@3.exe 15 4 2->8         started        13 Acrobat.exe 4 2->13         started        signatures3 process4 dnsIp5 31 www.google.com 142.250.185.196, 443, 49734, 49744 GOOGLEUS United States 8->31 27 C:\Users\user\AppData\...\4EBE6@3.exe.log, ASCII 8->27 dropped 57 Moves itself to temp directory 8->57 59 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->59 15 noise.exe 14 3 8->15         started        19 conhost.exe 13->19         started        file6 signatures7 process8 dnsIp9 33 www.google.com 15->33 35 Writes to foreign memory regions 15->35 37 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->37 39 Injects a PE file into a foreign processes 15->39 21 InstallUtil.exe 2 4 15->21         started        signatures10 process11 file12 25 C:\Users\user\AppData\Roaming\...\Acrobat.exe, PE32 21->25 dropped 49 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 21->49 51 Tries to steal Mail credentials (via file / registry access) 21->51 53 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 21->53 55 2 other signatures 21->55 signatures13
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-08-04 13:14:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
22 of 26 (84.62%)
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:
81baf55c19c00ec38dd62ea3b30a3af669be588442dc0648865f80195665d2b2
MD5 hash:
ade71491b076ca7a43effaf0214dd030
SHA1 hash:
75623647a35d7bfbfc0df5dfc24646c8d53367d1
Malware family:
AgentTesla.v3
Verdict:
Malicious

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 81baf55c19c00ec38dd62ea3b30a3af669be588442dc0648865f80195665d2b2

(this sample)

  
Delivery method
Distributed via e-mail attachment

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