MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8cb4a9f460393b3be86376d041413a4699e7a48bd568f36157a8562929581826. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8cb4a9f460393b3be86376d041413a4699e7a48bd568f36157a8562929581826
SHA3-384 hash: f5be9ec4155282a21333329cc85ebd01764db4524aa343ea5552531ff91ad47e420b8f580d8963f4a8bd92ed02a81b8c
SHA1 hash: 401eb112faec3b66c57c9102acc64d215b53e55c
MD5 hash: e69b4d80f397d5a4f97c8ec6567eb5d2
humanhash: eighteen-fruit-low-south
File name:8cb4a9f460393b3be86376d041413a4699e7a48bd568f36157a8562929581826
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'019'904 bytes
First seen:2021-02-03 09:39:07 UTC
Last seen:2021-02-03 12:21:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'605 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:uc/qKecvVje/Tk6L4ztr2yd1lU5T3WnsCc47y47nAzVWI5eZ:omvVje/Tknr2y9U5T+7h7X7nwWie
Threatray 2'407 similar samples on MalwareBazaar
TLSH 3025CF5223D57B08D47D5B3481616A4083F3F9AFD775CA4E3D9830DA2B32F85A2A3786
Reporter madjack_red
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
2
# of downloads :
115
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8cb4a9f460393b3be86376d041413a4699e7a48bd568f36157a8562929581826
Verdict:
Malicious activity
Analysis date:
2021-02-03 09:41:49 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/dc91dea8-bb85-46bb-9658-de61166c968d

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/115268/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.528.6741.27568.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
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/597610
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
C2 URLs / IPs found in malware configuration
Contains functionality to register a low level keyboard hook
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 347843 Sample: bqT2VtUB2r Startdate: 03/02/2021 Architecture: WINDOWS Score: 100 51 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->51 53 Found malware configuration 2->53 55 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->55 57 8 other signatures 2->57 6 bqT2VtUB2r.exe 3 2->6         started        10 eCwYM.exe 2 2->10         started        12 eCwYM.exe 3 2->12         started        process3 file4 25 C:\Users\user\AppData\...\bqT2VtUB2r.exe.log, ASCII 6->25 dropped 59 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->59 61 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->61 63 Contains functionality to register a low level keyboard hook 6->63 14 bqT2VtUB2r.exe 2 9 6->14         started        19 bqT2VtUB2r.exe 6->19         started        21 eCwYM.exe 6 10->21         started        65 Multi AV Scanner detection for dropped file 12->65 67 Machine Learning detection for dropped file 12->67 23 eCwYM.exe 2 12->23         started        signatures5 process6 dnsIp7 31 208.91.199.223, 49735, 587 PUBLIC-DOMAIN-REGISTRYUS United States 14->31 33 smtp.artteria-co.uk 14->33 35 us2.smtp.mailhostbox.com 208.91.199.225, 49734, 49739, 49746 PUBLIC-DOMAIN-REGISTRYUS United States 14->35 27 C:\Users\user\AppData\Roaming\...\eCwYM.exe, PE32 14->27 dropped 29 C:\Users\user\...\eCwYM.exe:Zone.Identifier, ASCII 14->29 dropped 39 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->39 41 Tries to steal Mail credentials (via file access) 14->41 43 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->43 37 smtp.artteria-co.uk 21->37 45 Tries to harvest and steal ftp login credentials 21->45 47 Tries to harvest and steal browser information (history, passwords, etc) 21->47 49 Installs a global keyboard hook 21->49 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8cb4a9f460393b3be86376d041413a4699e7a48bd568f36157a8562929581826/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-02-03 00:47:45 UTC
AV detection:
12 of 29 (41.38%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rs2kt5dahe5tx2ddo3iecqj2i2m6pjel2vupgykxvblcskkydata._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
062aabf47527940c952d0a7025f25a290cc007d25cd42d1f807b64d482806848
AgentTesla
121aedf2e05496fa5802da72a939a4bb3d2501efa9a8a9be95e98773f93f34c2
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62e4849bf2b02dd9508f6db60bc9f0d0e982ddfb607b9816e4a777c8cf5542ec
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782e217ec684944693a03a56d29675c879b31fb570c5f9956552ba5968295463
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8a21b943ea85a94fb89a4222be1b22222b71447cc16fe9b1ef58957029210a8f
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8b4a5801c16f94c66a10ce7a538ca32311b40b465176759fa9c4457092258956
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9e33ca4eee3b2499f384dcfd926f97675258157bbdbeaa5c6720abc746c77d2c
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ae6afd41f48899b7093e7adce00362ad342b1a23495fe1a9e2cb3155b7f3bac4
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e41c50d817a963a03c07188bda3e42f164f1ce189f2875dc7f5125594d4ec159
AgentTesla
e9bcbfd654307b0c2e6960776084c20444dae83a4300b301f541e5473077b257
AgentTesla
+ 2'397 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/210203-feyz8962dx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
0b4ba538272b885f403d0ebf78ff998ab9b5816d972b730e4589d4b52b7eee30
MD5 hash:
7cf4cc6991569f6be2fe605edb52574a
SHA1 hash:
d833df013a47a3f214188460cd7ffb9f8781ae1c
Link:
https://www.unpac.me/results/074f4a9f-7364-4ae0-a0c2-aecf52c5dc8d/
SH256 hash:
3008f3ace42524781d2baa93fa136abfdb738869b796aa6d8fde22daedeface7
MD5 hash:
c8584ea3d3a89ca0a031a8d7568338c4
SHA1 hash:
bfea723df5ade25e12f819cb1c11373005b6e040
Link:
https://www.unpac.me/results/074f4a9f-7364-4ae0-a0c2-aecf52c5dc8d/
SH256 hash:
bd03f1419db658015507630078378ed7b24ed480166fb9855308e78cd249fb44
MD5 hash:
06ba0381250a64535e2ff8dcf4f37907
SHA1 hash:
bb9f2a2c1d8bdabeefcb7b1f0333a47ae144571c
Link:
https://www.unpac.me/results/074f4a9f-7364-4ae0-a0c2-aecf52c5dc8d/
SH256 hash:
8cb4a9f460393b3be86376d041413a4699e7a48bd568f36157a8562929581826
MD5 hash:
e69b4d80f397d5a4f97c8ec6567eb5d2
SHA1 hash:
401eb112faec3b66c57c9102acc64d215b53e55c
Link:
https://www.unpac.me/results/074f4a9f-7364-4ae0-a0c2-aecf52c5dc8d/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Password Stealer
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/8cb4a9f460393b3be86376d041413a4699e7a48bd568f36157a8562929581826

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.

Cape
Cape
https://www.capesandbox.com/analysis/115268/

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