MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b3f6d41ee6c1f630f6aa74edbe5d524fe2333a91e5234509c647432f663819f. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3b3f6d41ee6c1f630f6aa74edbe5d524fe2333a91e5234509c647432f663819f
SHA3-384 hash: 0544cf23994d1f84df8ecfe6adda2761539ba908363a2b46726e494dc5680e6a5558acbc30c2e106c6dc24261e09d9d1
SHA1 hash: b967e59eabac83697e27576e54420623d5ebedfb
MD5 hash: f17d8c94783597296264ab489cfc64b8
humanhash: summer-fifteen-kansas-double
File name:f17d8c94783597296264ab489cfc64b8.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:640'000 bytes
First seen:2021-04-19 17:22:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:8kThzRRRRRcVQxHJP9ywV9UyuqR1jrJDRh904hnfWkCigX7:ZRRRRRcVe7UXqR1jNDRPlukI
Threatray 4'047 similar samples on MalwareBazaar
TLSH BAD4F14E6348A376D4F927B84021566017F9E92FE721E3193DF4DEAE7833A54868C7C2
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
93
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
specification.xlsx
Verdict:
Malicious activity
Analysis date:
2021-04-19 12:05:47 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/1924575c-135f-4739-b95e-aa73e3a4872e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/138670/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.666.2474.6972.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/687422
Signature
.NET source code contains very large array initializations
Contains functionality to register a low level keyboard hook
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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)
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 signatures2 2 Behavior Graph ID: 392658 Sample: IZp4AdQAmm.exe Startdate: 19/04/2021 Architecture: WINDOWS Score: 100 39 Found malware configuration 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 Yara detected AgentTesla 2->43 45 4 other signatures 2->45 6 IZp4AdQAmm.exe 3 2->6         started        10 aKZoqyj.exe 3 2->10         started        12 aKZoqyj.exe 2->12         started        process3 file4 21 C:\Users\user\AppData\...\IZp4AdQAmm.exe.log, ASCII 6->21 dropped 47 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->47 49 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->49 51 Contains functionality to register a low level keyboard hook 6->51 14 IZp4AdQAmm.exe 2 9 6->14         started        53 Multi AV Scanner detection for dropped file 10->53 55 Machine Learning detection for dropped file 10->55 57 Injects a PE file into a foreign processes 10->57 19 aKZoqyj.exe 2 10->19         started        signatures5 process6 dnsIp7 27 smtp.scrablex.com 14->27 29 us2.smtp.mailhostbox.com 208.91.199.224, 49743, 49744, 587 PUBLIC-DOMAIN-REGISTRYUS United States 14->29 23 C:\Users\user\AppData\Roaming\...\aKZoqyj.exe, PE32 14->23 dropped 25 C:\Users\user\...\aKZoqyj.exe:Zone.Identifier, ASCII 14->25 dropped 31 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->31 33 Tries to steal Mail credentials (via file access) 14->33 35 Tries to harvest and steal ftp login credentials 14->35 37 3 other signatures 14->37 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3b3f6d41ee6c1f630f6aa74edbe5d524fe2333a91e5234509c647432f663819f/
Gathering data
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hm7w2qponqpwgd3ku5hnxzovet7cgm5jdzjdiue4mr2df5tdqgpq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 4'037 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/210419-qzpsnebtw6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
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:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3b3f6d41ee6c1f630f6aa74edbe5d524fe2333a91e5234509c647432f663819f

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.

Web download

AgentTesla

Executable exe 3b3f6d41ee6c1f630f6aa74edbe5d524fe2333a91e5234509c647432f663819f

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/138670/
  
URLhaus
https://urlhaus.abuse.ch/url/1139627/
  
Delivery method
Distributed via web download

Comments