MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4020476633780b89b1732b79ab3e94217f6f90fbd5770890ea35f764b5ebd78c. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4020476633780b89b1732b79ab3e94217f6f90fbd5770890ea35f764b5ebd78c
SHA3-384 hash: 3ff5547f781f87e1a6edffd64630ced533cb7315670f4ab79b912b8a554135af80a36f93ab903793f19494efe34d56b3
SHA1 hash: 357ddbaf569c287fb659e09a410fb6c50b90bd5d
MD5 hash: e729ed6133045b2a6bc29c98d5535b9f
humanhash: mexico-pizza-failed-floor
File name:documents.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:553'984 bytes
First seen:2022-04-06 20:18:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:buwNoSVqwmAXYSettoVp4veMxCtO3eAXqbHltF:biSVqRAISGm0Nsvlt
Threatray 15'736 similar samples on MalwareBazaar
TLSH T183C41254BB7BDD12C96D66B3A0D2460603B0DB03E5A5DB8E2FDE11EE4A133D21A427D3
File icon (PE):PE icon
dhash icon f8e4f239d9b8f8e0 (21 x SnakeKeylogger, 20 x AgentTesla, 11 x Formbook)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
257
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/261488/
Detection(s):
SecuriteInfo.com.MachineLearning.Anomalous.96.16448.20703.UNOFFICIAL
Create hunting rule

Win.Dropper.LokiBot-9943279-0
Create hunting rule

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
Creating a file in the %temp% directory
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed
Link:
https://www.filescan.io/uploads/624df5e640ce5db9f41eb896/reports/a8f4f546-7ce2-4baa-a528-fd47e4e2cce0/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/10eaba21-249b-43f5-8a76-047ffc5017f9
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/971875
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
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
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the hosts 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)
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
Sigma detected: Suspicious Svchost Process
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 / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 604358 Sample: documents.exe Startdate: 06/04/2022 Architecture: WINDOWS Score: 100 53 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->53 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 12 other signatures 2->59 7 documents.exe 7 2->7         started        12 wZzDLLs.exe 2 2->12         started        14 wZzDLLs.exe 1 2->14         started        process3 dnsIp4 51 192.168.2.1 unknown unknown 7->51 39 C:\Users\user\AppData\...\UTWkdPhmueOsQA.exe, PE32 7->39 dropped 41 C:\...\UTWkdPhmueOsQA.exe:Zone.Identifier, ASCII 7->41 dropped 43 C:\Users\user\AppData\Local\...\tmp3AF8.tmp, XML 7->43 dropped 45 C:\Users\user\AppData\...\documents.exe.log, ASCII 7->45 dropped 69 Uses schtasks.exe or at.exe to add and modify task schedules 7->69 71 Adds a directory exclusion to Windows Defender 7->71 16 RegSvcs.exe 2 4 7->16         started        21 powershell.exe 25 7->21         started        23 schtasks.exe 1 7->23         started        25 svchost.exe 7->25         started        27 conhost.exe 12->27         started        29 conhost.exe 14->29         started        file5 signatures6 process7 dnsIp8 47 atifnazar.com 212.8.242.106, 49781, 587 WORLDSTREAMNL Netherlands 16->47 49 mail.atifnazar.com 16->49 35 C:\Users\user\AppData\Roaming\...\wZzDLLs.exe, PE32 16->35 dropped 37 C:\Windows\System32\drivers\etc\hosts, ASCII 16->37 dropped 61 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->61 63 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->63 65 Tries to steal Mail credentials (via file / registry access) 16->65 67 5 other signatures 16->67 31 conhost.exe 21->31         started        33 conhost.exe 23->33         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4020476633780b89b1732b79ab3e94217f6f90fbd5770890ea35f764b5ebd78c/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-04-06 20:19:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
15 of 26 (57.69%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iaqeozrtpafytmltfn42wpuuef7w7eh32v3qrehkgx3wjnpl26ga._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0d34612769ca0bec0bda68a9b182b7477107288b8272f855e6e75bd0b330dcdd
AgentTesla
1f159a90cc9a8c72b6f966bb9faf9c7efedcccb3550345b63c9ecbe844d64403
AgentTesla
57c38984bd22e15b6b0ae6f05e03159e4f53b18692b2300c098c9094e631146f
AgentTesla
997777103beb79d540fe2d758c2183107f3468889f9bc1d96bfd08db19dbb9c8
AgentTesla
be13445bfc27add23b008bd963fb87dbe131334ae4b627a97f34083fe355eae0
AgentTesla
dc5eec99aa11a84baf9db82822e5367fb90f34304a660df4831f6f4cb4979e13
AgentTesla
f5b14397623cd39903f74bb50c9ab799ce36f45bd909218fca2ade16de032656
AgentTesla
+ 15'726 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220406-y3trdshfh9/
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
Adds Run key to start application
Checks computer location settings
Drops file in Drivers directory
AgentTesla
Unpacked files
SH256 hash:
be17dd8c4febb81fe524ddb7fc7f25d2f80f200bac10906de61647f22b1840af
MD5 hash:
87b716f5c3c4e948e8e58ccd50c74358
SHA1 hash:
ec22f46fc2621aa47d2ba7640888d8eec05c900d
Link:
https://www.unpac.me/results/3de26a3d-f555-4229-a4b4-a1b52ad2444f/
SH256 hash:
fe58122a2dc9f6b7c57eb945796affbcaa214b940cc31ea78bb3a93ec99b78bd
MD5 hash:
d4be86e94d2483566e3b788be1cf4658
SHA1 hash:
9e859c78492536bbcb13ce9a1efdebf5b73a6316
Link:
https://www.unpac.me/results/3de26a3d-f555-4229-a4b4-a1b52ad2444f/
SH256 hash:
6f9f80780592cea1f132486a46ef7af6194a27890da2cd8ce5d377a7990c199c
MD5 hash:
84bb37394d68a274ee03cbc254dfc2e7
SHA1 hash:
8bd47f3801fc2da35b82f0c5df74e7ae8eee06bc
Link:
https://www.unpac.me/results/3de26a3d-f555-4229-a4b4-a1b52ad2444f/
SH256 hash:
69dc9c6b0a10e726cb0692be15e3b1534651df7e6087cae4f0c3499d6a521590
MD5 hash:
4e0b4589ff8182ffc3a7ff7e80a08600
SHA1 hash:
2b960603dd5f62001eee2e2ff33d49ef1c73771a
Link:
https://www.unpac.me/results/3de26a3d-f555-4229-a4b4-a1b52ad2444f/
SH256 hash:
4020476633780b89b1732b79ab3e94217f6f90fbd5770890ea35f764b5ebd78c
MD5 hash:
e729ed6133045b2a6bc29c98d5535b9f
SHA1 hash:
357ddbaf569c287fb659e09a410fb6c50b90bd5d
Link:
https://www.unpac.me/results/3de26a3d-f555-4229-a4b4-a1b52ad2444f/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/402047663378/report/overview.html
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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
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 4020476633780b89b1732b79ab3e94217f6f90fbd5770890ea35f764b5ebd78c

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/261488/

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