MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4336636fb933c27fbd31d4d08e3c888aa6a36e915e3d783f9dbce3c93ce7539. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4336636fb933c27fbd31d4d08e3c888aa6a36e915e3d783f9dbce3c93ce7539
SHA3-384 hash: 21448eed1f18b139a938273f530d06e0b3f4c94d8e578a18788d1a8b38aabb277a691d5ac9d5235fad72832ea0aefbec
SHA1 hash: e094126439f00cb983473ea02dd9132577f8d4d6
MD5 hash: bab07e8f69ca001c82c926739abf7bb0
humanhash: purple-stairway-rugby-september
File name:IMG-9R984-PO-DETAILS.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:468'016 bytes
First seen:2020-10-23 14:50:52 UTC
Last seen:2020-10-23 15:52:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:GO0/x5X4sBnu5hSKWt8BbUdQ8qfWBfJXAya:N0/x5X4On8hb68BNbWBfJXAF
Threatray 742 similar samples on MalwareBazaar
TLSH 20A46B098E5BDD23F8F87BBAF86289EE97B598185D13F206410E18E95D1D7C009D33B6
Reporter abuse_ch
Tags:AgentTesla exe Maersk


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail.happyisp.com
Sending IP: 5.206.224.208
From: MAERSK LINE <bulgaria@alphajetservices.com>
Subject: URGENT TELEX RELEASE - RE Shipment Bill of lading 20170000112
Attachment: IMG-9R984-PO-DETAILS.rar (contains "IMG-9R984-PO-DETAILS.exe")

AgentTesla SMTP exfil server:
mail.karotowaenterprise.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
135
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/75087/
Detection(s):
SecuriteInfo.com.ArtemisBAB07E8F69CA.11551.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/508226
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Injects a PE file into a foreign processes
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)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a4336636fb933c27fbd31d4d08e3c888aa6a36e915e3d783f9dbce3c93ce7539/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-23 14:14:04 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uqzwmnx3sm6cp66tdvgqry6ircvgunxjcxr5pa7z3phdze6oou4q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
142d55d52c13f23d5acf68d0f7247063d783f4a878b673ee247d091c920e7128
AgentTesla
2224faed60a821d88e78b3cdbf91fef22a0e8c7e22e6cdacb9e0242e248c28f6
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3e85f299521db50b9f3e2004b0e07f2f9dbf8ea0d26460fa4782a73f6007e002
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4585051dc6b7393255db1838a6ced5e5005da977ea7be332cc6540bcfe0379fc
AgentTesla
5017799e48545886ac896d038e3e9706fa65fb8a8644be0879279fe608dbdf66
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57f9de709f4ec55a5dc4cc77a99997b4c5617e769b2e68e301645b7913d6891a
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5967386e3a83cb9e0066223388892aade38751662b856048184c262239411aae
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7ef7f15bea33cb0d0b9888fa282f899f75b253ec9034746e1eb62b928f10e591
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81a408670b2a419c4383f47f1bdc1bf040e8070e8f4eaa734173478a6ee2347c
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973ebbfe874f302c2a1becf596b98ee15598919b1c86dcb9c4b078d1b4535b38
AgentTesla
+ 732 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
persistence spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/201023-yrw3elt4hs/
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
Looks up external IP address via web service
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:
a4336636fb933c27fbd31d4d08e3c888aa6a36e915e3d783f9dbce3c93ce7539
MD5 hash:
bab07e8f69ca001c82c926739abf7bb0
SHA1 hash:
e094126439f00cb983473ea02dd9132577f8d4d6
Link:
https://www.unpac.me/results/00595f0b-d6de-4c8e-b15b-0dab60e6d6de/
SH256 hash:
3d0029f06f3f911d671f58fc6afd80365e797b5135400645283dbed6e7ec0348
MD5 hash:
e17b83eff91696b35707ef47859ffa79
SHA1 hash:
7335dc7fba59a8c11d2e4d3e25230bd3245e746e
Link:
https://www.unpac.me/results/00595f0b-d6de-4c8e-b15b-0dab60e6d6de/
SH256 hash:
2423133cdc9e4a02037d29d92af9b231fcd56974823d5ab31890679075328745
MD5 hash:
54850c03bf9accb1601ff22192d53c8f
SHA1 hash:
2ee7c23d40c27b3253061318b91dd4acda481cd7
Link:
https://www.unpac.me/results/00595f0b-d6de-4c8e-b15b-0dab60e6d6de/
SH256 hash:
5fda7ee9bc5175075ee399ebf129d02f46eee3955ec06d359409e913ba7612d7
MD5 hash:
a10645a9d67ce46819443318e9b3063c
SHA1 hash:
a1ba5cfd0eb7fda77e513e3cc5c647baba61e29e
Link:
https://www.unpac.me/results/00595f0b-d6de-4c8e-b15b-0dab60e6d6de/
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/a4336636fb933c27fbd31d4d08e3c888aa6a36e915e3d783f9dbce3c93ce7539

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: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

rar f121060109f24507a6b87efd38961c89eb843aea2ad4b7e41573b80639881f27

AgentTesla

Executable exe a4336636fb933c27fbd31d4d08e3c888aa6a36e915e3d783f9dbce3c93ce7539

(this sample)

  
Dropped by
MD5 2b94c7ec8227900841bb1b377fb25870
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/75087/
  
Dropped by
SHA256 f121060109f24507a6b87efd38961c89eb843aea2ad4b7e41573b80639881f27

Comments