MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d8c590e11c422a5cf6b2a1f8ddceee64805d063739d0e83c234bdcabae9e3700. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d8c590e11c422a5cf6b2a1f8ddceee64805d063739d0e83c234bdcabae9e3700
SHA3-384 hash: 6ceebf5db8bf843393da6743c8aa1249790ff523f5b76640fda15a31f4ff7f0fc4cdadac54f056b2656ea485651239f6
SHA1 hash: 7924c7c76fffb1082bfb699ca59dab918b60851b
MD5 hash: bf55fb780a64997eb8bb2ad5098bded2
humanhash: fillet-mars-speaker-blue
File name:booking.bat
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'950'368 bytes
First seen:2021-01-03 10:50:29 UTC
Last seen:2021-01-03 12:41:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 1536:TZKzFrhzNoqCXgduUHTxPbSUesxQM603V25UDUvQ9bhWSUguif57VEU5NoffU5ir:T2T4
Threatray 2'043 similar samples on MalwareBazaar
TLSH 81950B156FD3254EF2F3E0B612B19ADAAF38FA7A72405E1D825D1A550C03F862F83D16
Reporter abuse_ch
Tags:AgentTesla bat


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: secure.zrl.com.zm
Sending IP: 216.194.164.118
From: AGODA.COM <BIZZ@agoda.com>
Subject: Agoda Booking ID - 55820456/ Check In Date: January 3, 2021
Attachment: booking.zip (contains "booking.bat")

Intelligence

File Origin
# of uploads :
2
# of downloads :
241
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
booking.bat
Verdict:
Malicious activity
Analysis date:
2021-01-03 10:52:32 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/2e084848-e4b4-490c-9b44-7b6a6807611a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/110340/
Detection(s):
SecuriteInfo.com.Generic.mg.bf55fb780a64997e.991.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Creating a window
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Moving of the original file
Enabling autorun by creating a file
Enabling autorun
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.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/573070
Signature
.NET source code contains very large array initializations
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Creates multiple autostart registry keys
Drops PE files to the startup folder
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Moves itself to temp directory
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 335597 Sample: booking.bat Startdate: 03/01/2021 Architecture: WINDOWS Score: 100 48 royalhotelapartmentet.com 2->48 50 mail.royalhotelapartmentet.com 2->50 74 Found malware configuration 2->74 76 Multi AV Scanner detection for dropped file 2->76 78 Multi AV Scanner detection for submitted file 2->78 80 8 other signatures 2->80 7 booking.exe 3 5 2->7         started        11 CZVkY.exe 1 4 2->11         started        13 booking.exe 2 2->13         started        15 6 other processes 2->15 signatures3 process4 file5 40 C:\Users\user\AppData\Roaming\...\booking.exe, PE32 7->40 dropped 42 C:\Users\user\...\booking.exe:Zone.Identifier, ASCII 7->42 dropped 44 C:\Users\user\AppData\...\booking.exe.log, ASCII 7->44 dropped 82 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->82 84 Creates an undocumented autostart registry key 7->84 86 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->86 17 booking.exe 2 5 7->17         started        46 C:\Users\user\AppData\Roaming\...\CZVkY.exe, PE32 11->46 dropped 88 Multi AV Scanner detection for dropped file 11->88 90 Machine Learning detection for dropped file 11->90 92 Drops PE files to the startup folder 11->92 21 backgroundTaskHost.exe 11->21         started        23 CZVkY.exe 2 11->23         started        94 Creates multiple autostart registry keys 13->94 96 Injects a PE file into a foreign processes 13->96 25 booking.exe 2 13->25         started        98 Creates autostart registry keys with suspicious names 15->98 28 CZVkY.exe 15->28         started        30 booking.exe 2 15->30         started        32 CZVkY.exe 15->32         started        34 3 other processes 15->34 signatures6 process7 dnsIp8 36 C:\Users\user\AppData\Roaming\...\CZVkY.exe, PE32 17->36 dropped 38 C:\Users\user\...\CZVkY.exe:Zone.Identifier, ASCII 17->38 dropped 56 Moves itself to temp directory 17->56 58 Creates multiple autostart registry keys 17->58 60 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->60 62 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 21->62 64 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 21->64 52 royalhotelapartmentet.com 138.128.186.130, 49717, 49718, 587 DIMENOCUS United States 25->52 54 mail.royalhotelapartmentet.com 25->54 66 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 25->66 68 Tries to steal Mail credentials (via file access) 25->68 70 Tries to harvest and steal ftp login credentials 25->70 72 Tries to harvest and steal browser information (history, passwords, etc) 28->72 file9 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d8c590e11c422a5cf6b2a1f8ddceee64805d063739d0e83c234bdcabae9e3700/
Threat name:
ByteCode-MSIL.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2021-01-02 09:33:26 UTC
AV detection:
17 of 29 (58.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=3dczbyi4iivfz5vsuh4n3txomsaf2brxhhioqpbdjpokxlu6g4aa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 2'033 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/210103-hk82nenh2a/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Drops startup file
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Modifies WinLogon for persistence
Unpacked files
SH256 hash:
d8c590e11c422a5cf6b2a1f8ddceee64805d063739d0e83c234bdcabae9e3700
MD5 hash:
bf55fb780a64997eb8bb2ad5098bded2
SHA1 hash:
7924c7c76fffb1082bfb699ca59dab918b60851b
Link:
https://www.unpac.me/results/0b824592-0ae4-4e8e-9c5a-0ee9d6116f14/
SH256 hash:
78e96a82a6127aed5758c3b5dd641d2cd605e9fc70066341d1602b6eb1c4cee8
MD5 hash:
405a4cb065ee33f3755701ca93958bb6
SHA1 hash:
ee82b430a4d9d6ff4b52e5aff13203ab9399da3f
Link:
https://www.unpac.me/results/0b824592-0ae4-4e8e-9c5a-0ee9d6116f14/
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/d8c590e11c422a5cf6b2a1f8ddceee64805d063739d0e83c234bdcabae9e3700

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.

Malspam

AgentTesla

zip cf5e8f5fc6f3b2826e1dfde3860e1e4ccdbc8e2a31d4f55fafe4de437e63f393

AgentTesla

Executable exe d8c590e11c422a5cf6b2a1f8ddceee64805d063739d0e83c234bdcabae9e3700

(this sample)

  
Dropped by
MD5 72355db960022475480a4489c0c31e62
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 cf5e8f5fc6f3b2826e1dfde3860e1e4ccdbc8e2a31d4f55fafe4de437e63f393
Cape
Cape
https://www.capesandbox.com/analysis/110340/

Comments