MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d2b40aec8598e0b2056bb553f0aeb0b57002a0840bfb92f90d668beaddd94a39. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash: d2b40aec8598e0b2056bb553f0aeb0b57002a0840bfb92f90d668beaddd94a39
SHA3-384 hash: ea792aa777b0c0b8b08f8684aaf882729f32e6a5a1d24b7fbf7fe0ebe400f6606c3b7d88f82fbaeb2b11c9c05430e215
SHA1 hash: 80fde31a7e2b2bb4dc764e51355854d8f54699a0
MD5 hash: 452d9fb9c46b1fc6d89ad55e0a910974
humanhash: south-stairway-sodium-louisiana
File name:usd 420232.exe
Download: download sample
Signature AgentTesla
File size:635'904 bytes
First seen:2021-04-09 08:41:28 UTC
Last seen:2021-04-09 09:57:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:owOMywm0oebKDUm4D3W8OdAPoOrJcVwpOQpSAerzX6SSVVUlDhnbTe0AZ1SHAf5q:ojbwmXDUG8OdAdrJcCpOeSAuzX6Smml
Threatray 3'834 similar samples on MalwareBazaar
TLSH 78D48DDC726072EFC857D472DAA82CA8EA5074BB831B4213902755EEDE4C897CF255F2
Reporter GovCERT_CH
Tags:AgentTesla

Intelligence


File Origin
# of uploads :
2
# of downloads :
141
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
usd 420232.exe
Verdict:
Malicious activity
Analysis date:
2021-04-09 08:44:08 UTC
Tags:
n/a

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

Behaviour
Sending a UDP request
Creating a window
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 very large array initializations
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected unpacking (changes PE section rights)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the hosts file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
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)
Sigma detected: Scheduled temp file as task from temp location
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
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 384500 Sample: usd 420232.exe Startdate: 09/04/2021 Architecture: WINDOWS Score: 100 66 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->66 68 Found malware configuration 2->68 70 Multi AV Scanner detection for dropped file 2->70 72 15 other signatures 2->72 7 usd 420232.exe 7 2->7         started        11 kprUEGC.exe 5 2->11         started        13 kprUEGC.exe 4 2->13         started        process3 file4 46 C:\Users\user\AppData\Roaming\UUxKjpyvn.exe, PE32 7->46 dropped 48 C:\Users\...\UUxKjpyvn.exe:Zone.Identifier, ASCII 7->48 dropped 50 C:\Users\user\AppData\Local\...\tmp7B7F.tmp, XML 7->50 dropped 52 C:\Users\user\AppData\...\usd 420232.exe.log, ASCII 7->52 dropped 74 Injects a PE file into a foreign processes 7->74 15 usd 420232.exe 2 5 7->15         started        20 schtasks.exe 1 7->20         started        76 Multi AV Scanner detection for dropped file 11->76 78 Detected unpacking (changes PE section rights) 11->78 80 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->80 82 2 other signatures 11->82 22 schtasks.exe 11->22         started        24 kprUEGC.exe 11->24         started        26 kprUEGC.exe 11->26         started        28 kprUEGC.exe 13->28         started        30 schtasks.exe 13->30         started        32 kprUEGC.exe 13->32         started        signatures5 process6 dnsIp7 54 smtp.orionfeshion.com 15->54 56 us2.smtp.mailhostbox.com 208.91.199.225, 49723, 587 PUBLIC-DOMAIN-REGISTRYUS United States 15->56 40 C:\Users\user\AppData\Roaming\...\kprUEGC.exe, PE32 15->40 dropped 42 C:\Users\user\...\kprUEGC.exe:Zone.Identifier, ASCII 15->42 dropped 58 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->58 60 Tries to steal Mail credentials (via file access) 15->60 62 Tries to harvest and steal ftp login credentials 15->62 64 4 other signatures 15->64 34 conhost.exe 20->34         started        36 conhost.exe 22->36         started        44 C:\Windows\System32\drivers\etc\hosts, ASCII 28->44 dropped 38 conhost.exe 30->38         started        file8 signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Status:
Malicious
First seen:
2021-04-08 21:00:25 UTC
AV detection:
11 of 48 (22.92%)
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 WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
c5519ef771321d62260735c62622297b284e823d97b29eed0dae704d89bb4c5f
MD5 hash:
0158502a4a1ee47ae2abfe604f2fd748
SHA1 hash:
3dec24548c89d943f3fe9a4dd0b8663cbdcf6e0d
SH256 hash:
d2b40aec8598e0b2056bb553f0aeb0b57002a0840bfb92f90d668beaddd94a39
MD5 hash:
452d9fb9c46b1fc6d89ad55e0a910974
SHA1 hash:
80fde31a7e2b2bb4dc764e51355854d8f54699a0
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:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
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 d2b40aec8598e0b2056bb553f0aeb0b57002a0840bfb92f90d668beaddd94a39

(this sample)

  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment

Comments