MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81f18d7043fe45aff8f00823b709dc0e0de30d0bb4a7eff9765ae0aca64b246a. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81f18d7043fe45aff8f00823b709dc0e0de30d0bb4a7eff9765ae0aca64b246a
SHA3-384 hash: 3bbd2a0aa786ff5ce10dad8cffbdb02a4b0ed217ff4fdd3a2eca24fa86f41285f86dbd1514436256a38dd57940255d52
SHA1 hash: 01a2dd508cbee4a77fcef0c8cfdeff78d8d22653
MD5 hash: ee7c05c530262450d2c5ace98ebbf8bc
humanhash: ten-freddie-victor-seventeen
File name:Sample_3.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:892'928 bytes
First seen:2021-05-06 12:37:31 UTC
Last seen:2021-05-06 13:01:56 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:xgoLLoS60/K7yh0/Gt5TapEdX/jbLI3ls0NYclrzApsh/638PGY46srSlP:CoLA/Gt5Ta+X/j/I0yRhG8ub6GSF
Threatray 6 similar samples on MalwareBazaar
TLSH 59156AB8766464F6D3171E7263DF4C0343A52270B92AEA4E9F6013BD4A53F132F3598A
Reporter starsSk87264403
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
2
# of downloads :
107
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/151593/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a process with a hidden window
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/714000
Signature
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
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)
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: 405922 Sample: Sample_3.exe Startdate: 06/05/2021 Architecture: WINDOWS Score: 100 29 Found malware configuration 2->29 31 Antivirus detection for dropped file 2->31 33 Antivirus / Scanner detection for submitted sample 2->33 35 9 other signatures 2->35 7 Sample_3.exe 6 2->7         started        process3 file4 19 C:\Users\user\AppData\...\yWvDgWcpiVil.exe, PE32 7->19 dropped 21 C:\Users\user\AppData\Local\...\tmp12F9.tmp, XML 7->21 dropped 23 C:\Users\user\AppData\...\Sample_3.exe.log, ASCII 7->23 dropped 37 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->37 39 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->39 41 Uses schtasks.exe or at.exe to add and modify task schedules 7->41 43 Injects a PE file into a foreign processes 7->43 11 Sample_3.exe 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 25 mail.privateemail.com 198.54.122.60, 49765, 587 NAMECHEAP-NETUS United States 11->25 27 192.168.2.1 unknown unknown 11->27 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 2 other signatures 11->51 17 conhost.exe 15->17         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/81f18d7043fe45aff8f00823b709dc0e0de30d0bb4a7eff9765ae0aca64b246a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-05-04 07:48:39 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qhyy24cd7zc276hqbar3oco4byg6gdilwst676lwllqkzjslerva._file
Verdict:
unknown
Similar samples:
36c42944400bdcde3e3406f10e44f934f7ff7eefb0d4c81ebb44a1fa8ee560de
AgentTesla
4b6e7577234309f9e6a02cdae8f7a77d542089c2a6efec1e08a478212038ab87
AgentTesla
50946bb2be1a9fb71dfd068710893588bfcbeacdf2cde3e0270c2f6487594a99
AgentTesla
586871a8aa5c08be02631a432daa373d9e40fdd0dd53b80f0210f53b41dbbfb3
AgentTesla
e6063fe35f1031b14928880700b1ca4dd4806c0b21a14bca4c52876b7795a205
AgentTesla
fa53b22a9bb151380817ee00fa66be2784c969c36213c1105646fe1e504bd526
AgentTesla
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210506-nd99clbeh2/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
84d476ce8d7a49abacca39ca69601397914fdd10484d83c06f6937e9c4948c2e
MD5 hash:
c84bb22b9e59bb72fe546a90baa3076c
SHA1 hash:
062c3b8ef3c6ff358aef7755c98cdafd5f95c8ee
Link:
https://www.unpac.me/results/b9aa9320-b224-4d85-9545-e5331e8d0131/
SH256 hash:
f867f2fd52f57ca6bf95a995fc3a521e288e9a857f96149ec98dbd133e6eff12
MD5 hash:
3be5033a5891602751b75e4574b8e7f4
SHA1 hash:
999d821c8d9b7355c301e93b83ef8ab7c9f8fef5
Link:
https://www.unpac.me/results/b9aa9320-b224-4d85-9545-e5331e8d0131/
SH256 hash:
74b2935b9dfe4ba397fd0507ae3c36abb77193041f2e7c43c55dc4e7b33de61c
MD5 hash:
b5c218f30fecc9cb8513ff6a46737b01
SHA1 hash:
f0416867c2b114789620b318051f1fa390b07eae
Link:
https://www.unpac.me/results/b9aa9320-b224-4d85-9545-e5331e8d0131/
SH256 hash:
81f18d7043fe45aff8f00823b709dc0e0de30d0bb4a7eff9765ae0aca64b246a
MD5 hash:
ee7c05c530262450d2c5ace98ebbf8bc
SHA1 hash:
01a2dd508cbee4a77fcef0c8cfdeff78d8d22653
Link:
https://www.unpac.me/results/b9aa9320-b224-4d85-9545-e5331e8d0131/
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/81f18d7043fe45aff8f00823b709dc0e0de30d0bb4a7eff9765ae0aca64b246a

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:pe_imphash
Create hunting rule
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 81f18d7043fe45aff8f00823b709dc0e0de30d0bb4a7eff9765ae0aca64b246a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1192031/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/151593/

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