MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f08055b66d4e8209560d1322c12c553b466ec737196e597ae00694e8035c25d2. 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: f08055b66d4e8209560d1322c12c553b466ec737196e597ae00694e8035c25d2
SHA3-384 hash: 3ded7580596497a6a3dc724f36a47c563e6958b8409133b9de0aa1de50d24f906afa1aada848c106b4ea708c1aaaf884
SHA1 hash: 468136bf4b407a5ec121335e8294b282f7dec74a
MD5 hash: cf6ade4a216c4daae539075da6311090
humanhash: eight-utah-mirror-delta
File name:Mediform SA Order 13082020.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:590'848 bytes
First seen:2020-08-13 11:46:51 UTC
Last seen:2020-08-13 13:22:45 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:L+qCYkVXlAjd05WU1pyNr8OuFvMtBIOEm:L+qCYqXlAd05WUcriFvMtBI3
Threatray 10'463 similar samples on MalwareBazaar
TLSH B3C4D06A22F4CA09C07BF37D81A51006B3F77D4A24A1C71A5DE81CD90D71BE24667EFA
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: hshgroups.co
Sending IP: 104.168.166.26
From: Mediform S.A<mediform.s.a@hotmail.com>
Subject: Re:Fw: Request For New Inquiry RFQ
Attachment: Mediform SA Order 13082020.rar (contains "Mediform SA Order 13082020.exe")

AgentTesla SMTP exfil server:
smtp.yandex.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
74
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/45161/
Detection(s):
SecuriteInfo.com.Generic.mg.cf6ade4a216c4daa.16176.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
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/426099
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Moves itself to temp directory
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 AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 265692 Sample: Mediform SA Order 13082020.exe Startdate: 14/08/2020 Architecture: WINDOWS Score: 100 40 Found malware configuration 2->40 42 Yara detected AgentTesla 2->42 44 Yara detected AntiVM_3 2->44 46 4 other signatures 2->46 6 Mediform SA Order 13082020.exe 3 2->6         started        9 ElPvJVq.exe 2 2->9         started        11 ElPvJVq.exe 3 2->11         started        process3 signatures4 48 Injects a PE file into a foreign processes 6->48 13 Mediform SA Order 13082020.exe 2 5 6->13         started        18 ElPvJVq.exe 9->18         started        20 ElPvJVq.exe 9->20         started        22 ElPvJVq.exe 9->22         started        28 2 other processes 9->28 50 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->50 52 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 11->52 24 ElPvJVq.exe 2 11->24         started        26 ElPvJVq.exe 11->26         started        process5 dnsIp6 34 smtp.yandex.ru 77.88.21.158, 49735, 49737, 587 YANDEXRU Russian Federation 13->34 36 smtp.yandex.com 13->36 30 C:\Users\user\AppData\Roaming\...lPvJVq.exe, PE32 13->30 dropped 32 C:\Users\user\...lPvJVq.exe:Zone.Identifier, ASCII 13->32 dropped 54 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->54 56 Moves itself to temp directory 13->56 58 Tries to steal Mail credentials (via file access) 13->58 60 Installs a global keyboard hook 13->60 38 smtp.yandex.com 18->38 62 Tries to harvest and steal ftp login credentials 18->62 64 Tries to harvest and steal browser information (history, passwords, etc) 18->64 66 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->66 file7 signatures8
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f08055b66d4e8209560d1322c12c553b466ec737196e597ae00694e8035c25d2/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2020-08-13 11:48:08 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6caflntnj2basvqncmrmclcvhndg5rzxdfxfs6xaa2koqa24exja._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'453 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer trojan spyware family:agenttesla persistence
Link:
https://tria.ge/reports/200813-yg141vfck6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
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 Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/f08055b66d4e8209560d1322c12c553b466ec737196e597ae00694e8035c25d2

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

rar cd40c7fde24d189a763cd1752acd99ecac9bb25bd3c4c3cccd031fdf69f73647

AgentTesla

Executable exe f08055b66d4e8209560d1322c12c553b466ec737196e597ae00694e8035c25d2

(this sample)

  
Dropped by
MD5 6eb578245647acd1b3e0a3b7bb1c80b5
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/45161/
  
Dropped by
SHA256 cd40c7fde24d189a763cd1752acd99ecac9bb25bd3c4c3cccd031fdf69f73647

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