MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b36448538d1e8029314a7998ce8eca1ca7af53b9ad36fd162783830e7b0e3071. 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 2 File information Comments
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SHA256 hash: b36448538d1e8029314a7998ce8eca1ca7af53b9ad36fd162783830e7b0e3071
SHA3-384 hash: 1bd9d3344c85e89ad1fa2bcc39c3e0108c74ddf7a55bf4c2b7faa7103520e970c06ee661bf360187c89cdbcd1267493c
SHA1 hash: 40ed629cc93d97a09f62f62334d29b1be81b2e71
MD5 hash: 7586f087a331b05d95638c0e84f9e2ff
humanhash: winner-aspen-montana-butter
File name:PDF.9066721066.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:820'224 bytes
First seen:2021-05-10 12:31:16 UTC
Last seen:2021-05-10 13:04:59 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 12288:1+aUQUZh2sjP7Do2PSmZF8APs+stTWG7LK0j9cqGMjvLe:QTh3jPX3SmZdPr+WGCEcqNvLe
Threatray 4'712 similar samples on MalwareBazaar
TLSH D805D06C3AA4D946D7BD42BC84B1927447F83E6A6D03E71D0AE430EC3E7B721DD1261A
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
113
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/154026/
Detection(s):
SecuriteInfo.com.Scr.Malcodegdn30.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/779319
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Moves itself to temp directory
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)
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 411715 Sample: PDF.9066721066.exe Startdate: 12/05/2021 Architecture: WINDOWS Score: 100 54 Found malware configuration 2->54 56 Multi AV Scanner detection for dropped file 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 6 other signatures 2->60 7 PDF.9066721066.exe 7 2->7         started        11 YYtJku.exe 5 2->11         started        13 YYtJku.exe 2 2->13         started        process3 file4 34 C:\Users\user\AppData\...\gUuEKXQHqJC.exe, PE32 7->34 dropped 36 C:\Users\...\gUuEKXQHqJC.exe:Zone.Identifier, ASCII 7->36 dropped 38 C:\Users\user\AppData\Local\...\tmp6CC8.tmp, XML 7->38 dropped 40 C:\Users\user\...\PDF.9066721066.exe.log, ASCII 7->40 dropped 62 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->62 64 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->64 66 Uses schtasks.exe or at.exe to add and modify task schedules 7->66 15 PDF.9066721066.exe 2 5 7->15         started        20 schtasks.exe 1 7->20         started        68 Multi AV Scanner detection for dropped file 11->68 70 Machine Learning detection for dropped file 11->70 72 Injects a PE file into a foreign processes 11->72 22 schtasks.exe 1 11->22         started        24 YYtJku.exe 2 11->24         started        signatures5 process6 dnsIp7 42 us2.smtp.mailhostbox.com 208.91.199.224, 49726, 587 PUBLIC-DOMAIN-REGISTRYUS United States 15->42 44 192.168.2.1 unknown unknown 15->44 30 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 15->30 dropped 32 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 15->32 dropped 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->46 48 Moves itself to temp directory 15->48 50 Tries to steal Mail credentials (via file access) 15->50 52 3 other signatures 15->52 26 conhost.exe 20->26         started        28 conhost.exe 22->28         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b36448538d1e8029314a7998ce8eca1ca7af53b9ad36fd162783830e7b0e3071/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2021-05-10 11:13:40 UTC
AV detection:
14 of 29 (48.28%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wnsequ4nd2acsmkkpgmm5dwkdst26u5zvu3p2frhqobq46yogbyq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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c0e4dcda04ddac9d111ae112d8cb134ed18c5eb060fa0d7073c34d47e6c6f86d
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d32f34638ac6c33cd00dc1c394f9479e5abb88dfe66f5447e2b491bd8d15fea7
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ee129b4636d521a2534586f389bd6ee35345f4bd987b959c81a50215cb65dca6
AgentTesla
+ 4'702 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210510-k7ecx7kmvj/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b36448538d1e8029314a7998ce8eca1ca7af53b9ad36fd162783830e7b0e3071

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.

Cape
Cape
https://www.capesandbox.com/analysis/154026/

Comments