MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a66ca1e1d94dfbe3e0fe92afd519f9a00b102438f6be1786a988fca58fa19bc6. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a66ca1e1d94dfbe3e0fe92afd519f9a00b102438f6be1786a988fca58fa19bc6
SHA3-384 hash: c5ce106a6e20b4a3936db0aa48cd07af387bc430419905cbf7e2bbdbb7b328a791302c37491fe01007f5c795891e668d
SHA1 hash: 793b6503c573e59c5dc6c6a37a6ece86438588a9
MD5 hash: 133c71447799c4b90fd4fef3c470c1fe
humanhash: apart-queen-thirteen-asparagus
File name:AUFTRAG.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:687'616 bytes
First seen:2020-09-03 10:03:53 UTC
Last seen:2020-09-03 11:00:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:PHgG7CMJM5jq00iA8+5t7pl2oHVy01F8UTZmP0F8ioUG04tJEeUOM:IcIm0gJkyy4F8UTZlRoUGTol1
Threatray 9'280 similar samples on MalwareBazaar
TLSH 0DE4E075A3A85735E53DB7BA002386CC13F1924AD373DE4DEED411C91686BA69233BC2
Reporter FORMALITYDE
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
2
# of downloads :
98
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/54663/
Detection(s):
SecuriteInfo.com.Fareit-FZL133C71447799.13211.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/458189
Signature
Found malware configuration
Injects a PE file into a foreign processes
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)
Sigma detected: Scheduled temp file as task from temp location
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 AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 281486 Sample: AUFTRAG.exe Startdate: 03/09/2020 Architecture: WINDOWS Score: 100 31 Found malware configuration 2->31 33 Multi AV Scanner detection for dropped file 2->33 35 Sigma detected: Scheduled temp file as task from temp location 2->35 37 7 other signatures 2->37 7 AUFTRAG.exe 7 2->7         started        process3 file4 19 C:\Users\user\AppData\...\mxhJPjunBQJB.exe, PE32 7->19 dropped 21 C:\Users\...\mxhJPjunBQJB.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmpD6D7.tmp, XML 7->23 dropped 25 C:\Users\user\AppData\...\AUFTRAG.exe.log, ASCII 7->25 dropped 39 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->39 41 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->41 43 Injects a PE file into a foreign processes 7->43 11 AUFTRAG.exe 4 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 smtp.pharco--corp.com 11->27 29 us2.smtp.mailhostbox.com 208.91.199.225, 49734, 587 PUBLIC-DOMAIN-REGISTRYUS United States 11->29 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->45 47 Tries to steal Mail credentials (via file access) 11->47 49 Tries to harvest and steal ftp login credentials 11->49 51 Tries to harvest and steal browser information (history, passwords, etc) 11->51 17 conhost.exe 15->17         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a66ca1e1d94dfbe3e0fe92afd519f9a00b102438f6be1786a988fca58fa19bc6/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2020-09-03 08:58:00 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uzwkdyozjx56hyh6skx5kgpzuafrajby627bpbvjrd6kld5btpda._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
04cfd305f0d352144e6063af7ca62241127142e7f67e079b78ce10f95e33d29e
AgentTesla
0ca1f0a08b7a21079683beeaf8bfa86df3d396b8d7a0cade52e963b78bd9a7e3
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3525fd909249f56ffbd4fa1389ea0f6526a21ef4aa202adf6cbc788988742cbc
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3b4fb17419bd0e04f1ccd704484fd4f26f1a583871924641a52d4f9440301947
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4d8f52a96c9c147aa721618ff6c4f6f0857c37292752e4abd8e3290904026932
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5fa8237700455a67c1db31c12aa20e6b5536af561ae732248326cd94990ac388
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6a43d3e802d7a52afa0ed359ad45f965c55beabfc143efd8facb89259b760e34
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a1579595bc8439774307b941ef20cbcd1e6f3e767859debd8e5e448eda09a0f2
AgentTesla
d0bf5a55861f4466482f73d630c098c486137c64a850fcec1325a4d6f6962087
AgentTesla
ef19177bdff9d49a09dd7010e58fd81029d5f8e2d54abb053575604c2fc219ed
AgentTesla
+ 9'270 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200903-ztyd34pdzs/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a66ca1e1d94dfbe3e0fe92afd519f9a00b102438f6be1786a988fca58fa19bc6

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

Executable exe a66ca1e1d94dfbe3e0fe92afd519f9a00b102438f6be1786a988fca58fa19bc6

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/54663/

Comments