MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 12b8744ef3fb3d96fd765685425833eaa9acd9ef3da566c016100ac66572b5ad. 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 7 File information Comments
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SHA256 hash: 12b8744ef3fb3d96fd765685425833eaa9acd9ef3da566c016100ac66572b5ad
SHA3-384 hash: 9c532da2bbf0ae884fd65b4abf750e73bcce9c9547b0f13622ac0df74f8f52aed04aaf03f4acc6a3944e0029a6c55c2d
SHA1 hash: 1f85a459f166188d0c50eb96f54922c563cf5c82
MD5 hash: 0c79724735a66de947886919c9199075
humanhash: diet-nine-august-sierra
File name:Invoice.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:861'184 bytes
First seen:2020-11-11 22:27:05 UTC
Last seen:2020-11-17 12:11:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:EA8kJCIPvIr/zuyImRKHEO11My+LDBwruNfld4J6NGIt8LF0:o8fPAr7uyImqAPOUldw6NH8
Threatray 9'580 similar samples on MalwareBazaar
TLSH 0005BE307161EF86DA7907F4D452E0F48FE42E2BA929D58A3CC43ECF7079B504A58A67
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
158
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.21457.31672.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Moving of the original file
Stealing user critical data
Enabling autorun by creating a file
Result
Verdict:
SUSPICIOUS
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/530769
Signature
.NET source code contains potential unpacker
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
Installs a global keyboard hook
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)
Sigma detected: Scheduled temp file as task from temp location
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 AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 314485 Sample: Invoice.exe Startdate: 11/11/2020 Architecture: WINDOWS Score: 100 62 Found malware configuration 2->62 64 Multi AV Scanner detection for dropped file 2->64 66 Sigma detected: Scheduled temp file as task from temp location 2->66 68 7 other signatures 2->68 7 Invoice.exe 6 2->7         started        11 Pcjubwm.exe 5 2->11         started        13 Pcjubwm.exe 2 2->13         started        process3 file4 34 C:\Users\user\AppData\...\IiYrmpSguWy.exe, PE32 7->34 dropped 36 C:\Users\user\AppData\Local\...\tmp7F5A.tmp, XML 7->36 dropped 38 C:\Users\user\AppData\...\Invoice.exe.log, ASCII 7->38 dropped 70 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->70 72 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->72 15 Invoice.exe 2 5 7->15         started        20 schtasks.exe 1 7->20         started        74 Multi AV Scanner detection for dropped file 11->74 22 Pcjubwm.exe 2 11->22         started        24 schtasks.exe 1 11->24         started        signatures5 process6 dnsIp7 40 smtp.yandex.ru 77.88.21.158, 49727, 49733, 587 YANDEXRU Russian Federation 15->40 42 smtp.yandex.com 15->42 30 C:\Users\user\AppData\Roaming\...\Pcjubwm.exe, PE32 15->30 dropped 32 C:\Users\user\...\Pcjubwm.exe:Zone.Identifier, ASCII 15->32 dropped 48 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->48 50 Moves itself to temp directory 15->50 52 Tries to steal Mail credentials (via file access) 15->52 54 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->54 26 conhost.exe 20->26         started        44 192.168.2.1 unknown unknown 22->44 46 smtp.yandex.com 22->46 56 Tries to harvest and steal ftp login credentials 22->56 58 Tries to harvest and steal browser information (history, passwords, etc) 22->58 60 Installs a global keyboard hook 22->60 28 conhost.exe 24->28         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/12b8744ef3fb3d96fd765685425833eaa9acd9ef3da566c016100ac66572b5ad/
Threat name:
ByteCode-MSIL.Trojan.Ymacco
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Status:
Malicious
First seen:
2020-11-11 14:11:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ck4hitxt7m6zn7lwk2cuewbt5ku2zwpphwswnqawcafmmzlswwwq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 9'570 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/201111-kavn3nq8sj/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies service
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
Unpacked files
SH256 hash:
5c263e5094ee31ca006712a11d7ec55e6f6c5c644e31d83b61a02244c71d939a
MD5 hash:
323df1d863cd88f5358d3e18181b2724
SHA1 hash:
8637fb54cc1d36b1bf1555ae5f5ec66eb413eebf
Link:
https://www.unpac.me/results/c6f919cc-6b05-4886-8f86-306460918fbc/
SH256 hash:
cb951f1d2b5460456aad0d89cef1216d9be5e51784d11a92447d43e96177bd5e
MD5 hash:
8cd5d2014866f4ef60802ff1826998a6
SHA1 hash:
8ff75946905d0b117080cc5a07e6e0bbea4e9bbd
Link:
https://www.unpac.me/results/c6f919cc-6b05-4886-8f86-306460918fbc/
SH256 hash:
d50824bff82f808c1ee0d53eb121b2cdd8e6ccee7608567d7578615be56693b8
MD5 hash:
5188bb6e1e3f92a629ce1c73501a0243
SHA1 hash:
9297e60eda7cc04064d3ae6c770a5ccc56ebc3cd
Detections:
win_agent_tesla_w1
Create hunting rule
Link:
https://www.unpac.me/results/c6f919cc-6b05-4886-8f86-306460918fbc/
SH256 hash:
12b8744ef3fb3d96fd765685425833eaa9acd9ef3da566c016100ac66572b5ad
MD5 hash:
0c79724735a66de947886919c9199075
SHA1 hash:
1f85a459f166188d0c50eb96f54922c563cf5c82
Link:
https://www.unpac.me/results/c6f919cc-6b05-4886-8f86-306460918fbc/
Please note that we are no longer able to provide a coverage score for Virus Total.

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_extracted_bin
Create hunting rule
Author:James_inthe_box
Description:AgentTesla extracted
Rule name:AgentTesla_mod_tough_bin
Create hunting rule
Author:James_inthe_box
Reference:https://app.any.run/tasks/3b5d409c-978b-4a95-a5f1-399f0216873d/
Rule name:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:agent_tesla_2019
Create hunting rule
Author:jeFF0Falltrades
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_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla
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.

  
Delivery method
Other

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