MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8291edaab00eefb8c97afa39058726b12e70cb17570807c49ddd92e908c528aa. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8291edaab00eefb8c97afa39058726b12e70cb17570807c49ddd92e908c528aa
SHA3-384 hash: c19eacac9181d8e3a653341d0125c770a941c557268ecdb459cf9cf9b4ffe206c141f2a47a201aa5e08db5f2d12ea86e
SHA1 hash: 63dc94c6bb4c63447166d006bb67ccafc7177d1b
MD5 hash: 3542fd6a5f9d2894d281831224cdf19e
humanhash: rugby-ink-california-lactose
File name:4088852 KNr 142387.pdf_____.gz.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:906'752 bytes
First seen:2021-04-15 12:24:46 UTC
Last seen:2021-04-15 12:33:39 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:yGOztANTSuWEz0ghZ2gfmuSJqWEme+OnLmKOe3qRxRbyl5KH:yGOSNT9f7hL+uqdEB9nLp3qR1
Threatray 3'952 similar samples on MalwareBazaar
TLSH B2157B5171B78658E6E95F3444AD0E140EB2AD166973E30C19BA34EF1BB23834F1EF86
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
5
# of downloads :
106
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4088852 KNr 142387.pdf_____.gz.exe
Verdict:
Malicious activity
Analysis date:
2021-04-15 12:51:49 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/69351435-9db1-4a3b-8b39-8448833c2cff

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/134882/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.646-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/677502
Signature
.NET source code contains very large array initializations
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
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)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 387704 Sample: 4088852 KNr 142387.pdf_____... Startdate: 15/04/2021 Architecture: WINDOWS Score: 100 32 smtp.yandex.ru 2->32 34 smtp.yandex.com 2->34 50 Found malware configuration 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 Yara detected AgentTesla 2->54 56 6 other signatures 2->56 7 4088852 KNr 142387.pdf_____.gz.exe 3 2->7         started        11 outlook.exe 3 2->11         started        13 outlook.exe 2 2->13         started        signatures3 process4 file5 30 C:\...\4088852 KNr 142387.pdf_____.gz.exe.log, ASCII 7->30 dropped 58 Injects a PE file into a foreign processes 7->58 15 4088852 KNr 142387.pdf_____.gz.exe 2 9 7->15         started        60 Multi AV Scanner detection for dropped file 11->60 62 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->62 64 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 11->64 20 outlook.exe 2 11->20         started        22 outlook.exe 11->22         started        24 outlook.exe 2 13->24         started        signatures6 process7 dnsIp8 36 smtp.yandex.ru 77.88.21.158, 49747, 49748, 49749 YANDEXRU Russian Federation 15->36 38 192.168.2.1 unknown unknown 15->38 40 smtp.yandex.com 15->40 26 C:\Users\user\AppData\Roaming\...\outlook.exe, PE32 15->26 dropped 28 C:\Users\user\...\outlook.exe:Zone.Identifier, ASCII 15->28 dropped 42 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->42 44 Moves itself to temp directory 15->44 46 Tries to steal Mail credentials (via file access) 15->46 48 3 other signatures 15->48 file9 signatures10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8291edaab00eefb8c97afa39058726b12e70cb17570807c49ddd92e908c528aa/
Threat name:
ByteCode-MSIL.Spyware.Phonzy
Create hunting rule
Status:
Malicious
First seen:
2021-04-15 11:26:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
48
AV detection:
19 of 29 (65.52%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qki63kvqb3x3rsl27i4qlbzgwexhbsyxk4eapre53wjoscgffcva._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
08a9731bcdb6f79e9ed7ccdcbde6ac02efdc59f5678bb02c0f28c65af5a2ddec
AgentTesla
1b467c02c56a9130e3fb9e62e0ee62aa6b950845c9858f95656e659b814699c3
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566554b534a53102dd67fc20bd07ca49241b51616d73619e383e80bdfc4fe08a
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5aaae83a4b166e0cb4a3a5841c6b92c39c66b2c8dabbe9e304c7865237c9ad5b
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69536001b44238c3b5dd5100d6a198a0b192bdf2760d5272694a030d9adbe09d
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7b4b43d22be88ed3b2054ef7090ebb7b44ecc03dffa6c32e578002c9a12cbea8
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8942022e0a4d701eb39c483c716d246eb9f803afc7a87f778721df1b72a46ab2
AgentTesla
9863d85fe69d5b6a6dc3773b94f9f56cd836f78b9cee4e1d28d8fdb2a5a42f2f
AgentTesla
aeb333f991b9db4140b8c84c574510ec6571b9b5e8d8d2fcc631098b36a79f49
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b90fb49ced2711300981110e8d872b5b2848ea3449ef2db157df053dc6fe49c1
AgentTesla
+ 3'942 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/210415-g664m6sdgx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
5e0f3da625a479a5e7e807b5f09c889d95474139410b312ba3a39bcb05976729
MD5 hash:
3d20c2ea9ac04e1707f853bb1780bc18
SHA1 hash:
805e90b023eb92d44bbe11daefce6edbe872cb74
Link:
https://www.unpac.me/results/09558c10-7206-467a-8c5e-46df5eb59cd9/
SH256 hash:
8291edaab00eefb8c97afa39058726b12e70cb17570807c49ddd92e908c528aa
MD5 hash:
3542fd6a5f9d2894d281831224cdf19e
SHA1 hash:
63dc94c6bb4c63447166d006bb67ccafc7177d1b
Link:
https://www.unpac.me/results/09558c10-7206-467a-8c5e-46df5eb59cd9/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/8291edaab00eefb8c97afa39058726b12e70cb17570807c49ddd92e908c528aa

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
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:win_agent_tesla_v1
Create hunting rule
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

gz 8d2df0492806893416e045ed3790b8ccb4dfddd7e8276498e7528f80934c26d4

AgentTesla

Executable exe 8291edaab00eefb8c97afa39058726b12e70cb17570807c49ddd92e908c528aa

(this sample)

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/134882/
  
Dropped by
SHA256 8d2df0492806893416e045ed3790b8ccb4dfddd7e8276498e7528f80934c26d4

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