MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91069bfb988e568d03cba95913d32fd41d2c1548376fb41148b1a34b2b045b47. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments 1

SHA256 hash: 91069bfb988e568d03cba95913d32fd41d2c1548376fb41148b1a34b2b045b47
SHA3-384 hash: 8d56cf4a6b3b8f195f8509701b24f3abcb0292c131367c73759f861212742175a05e6bb9c1d7b9b378150905de31497c
SHA1 hash: 192741ca1b165cc8056f101d7a233936d470409e
MD5 hash: 0f9369062855490e52dc257997965969
humanhash: edward-alaska-monkey-carpet
File name:Purchase Order.exe
Download: download sample
Signature AgentTesla
File size:1'358'336 bytes
First seen:2021-05-14 11:18:26 UTC
Last seen:2021-05-14 12:03:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:XSVRyM6+90S9+R2i6r7jGdCjJZKZrb4s+WU8MnruD9oRfZMzVxaOngnx5s3pOiuo:XSVhp90S9nKZH4CYr6oRRMznaogxCe
Threatray 4'949 similar samples on MalwareBazaar
TLSH 9A55AEB872E855E4E36B1F36A3DF0C0243341631A927960E7B6C53B85F63F535A3984A
Reporter GovCERT_CH
Tags:AgentTesla

Intelligence


File Origin
# of uploads :
3
# of downloads :
117
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchase Order.exe
Verdict:
Malicious activity
Analysis date:
2021-05-14 11:21:59 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
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Unauthorized injection to a system process
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.adwa.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Contains functionality to register a low level keyboard hook
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Modifies the hosts file
Multi AV Scanner detection for dropped file
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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 414177 Sample: Purchase Order.exe Startdate: 14/05/2021 Architecture: WINDOWS Score: 100 48 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->48 50 Found malware configuration 2->50 52 Multi AV Scanner detection for dropped file 2->52 54 8 other signatures 2->54 7 Purchase Order.exe 4 2->7         started        11 kprUEGC.exe 2 2->11         started        13 kprUEGC.exe 1 2->13         started        process3 file4 32 C:\Users\user\AppData\...\bdoEHSCdznJz.exe, PE32 7->32 dropped 34 C:\Users\user\AppData\Local\...\tmpB546.tmp, XML 7->34 dropped 36 C:\Users\user\...\Purchase Order.exe.log, ASCII 7->36 dropped 56 Writes to foreign memory regions 7->56 58 Allocates memory in foreign processes 7->58 60 Injects a PE file into a foreign processes 7->60 15 RegSvcs.exe 2 4 7->15         started        20 schtasks.exe 1 7->20         started        22 conhost.exe 11->22         started        24 conhost.exe 13->24         started        signatures5 process6 dnsIp7 38 mail.sarojprints.com 166.62.7.52, 49743, 587 AS-26496-GO-DADDY-COM-LLCUS United States 15->38 28 C:\Users\user\AppData\Roaming\...\kprUEGC.exe, PE32 15->28 dropped 30 C:\Windows\System32\drivers\etc\hosts, ASCII 15->30 dropped 40 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->40 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->42 44 Tries to steal Mail credentials (via file access) 15->44 46 7 other signatures 15->46 26 conhost.exe 20->26         started        file8 signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-05-13 19:11:00 UTC
AV detection:
15 of 29 (51.72%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
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:ach_AgentTesla_20200929
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_agent_tesla_v1
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

Executable exe 91069bfb988e568d03cba95913d32fd41d2c1548376fb41148b1a34b2b045b47

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments



Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-14 12:17:38 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0009] Anti-Behavioral Analysis::Virtual Machine Detection