MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 59ae70d9d29e851c8564e7974ac853daa40d6ab9adb6fccf1b990042c8b2be03. 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

SHA256 hash: 59ae70d9d29e851c8564e7974ac853daa40d6ab9adb6fccf1b990042c8b2be03
SHA3-384 hash: 33f6f91ef242ed61b18ee3f800b569a22521e0a62d73875906e8d0bd7f89de604cb228af9c8a475a7caa31e633fa45fe
SHA1 hash: 58e6348bc9d89d9950970863524b0c7245abde17
MD5 hash: bf19f7c9431ba7fe50327be094ddb70d
humanhash: minnesota-nevada-gee-april
File name:payment voucher832020.exe
Download: download sample
Signature AgentTesla
File size:876'544 bytes
First seen:2020-08-03 13:51:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 419fbe6e075aa65af76659d0d420ea2c (6 x AgentTesla, 6 x MassLogger, 1 x Pony)
ssdeep 12288:9z7VdBti8MLJ7B8xsYP2ExVZpL1EHvXUd+be2K5y9xnAuEHbxL6VJNZH5:9zZTtiz78xsYLZpm8UqvjuEsVJT5
Threatray 11'319 similar samples on MalwareBazaar
TLSH 96159D22B2D04437F1732A3C9F1B6EB5D829BD11392899466BE74C4C4F3B6523B36297
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
69
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Launching a process
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Contains functionality to detect sleep reduction / modifications
Delayed program exit found
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Drops VBS files to the startup folder
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
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)
Queues an APC in another process (thread injection)
Sigma detected: Drops script at startup location
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 256259 Sample: payment voucher832020.exe Startdate: 03/08/2020 Architecture: WINDOWS Score: 100 48 Detected unpacking (changes PE section rights) 2->48 50 Detected unpacking (overwrites its own PE header) 2->50 52 Yara detected AgentTesla 2->52 54 6 other signatures 2->54 7 Mymp4.exe 2->7         started        10 Mymp4.exe 2->10         started        12 wscript.exe 1 2->12         started        14 payment voucher832020.exe 2->14         started        process3 signatures4 74 Detected unpacking (changes PE section rights) 7->74 76 Detected unpacking (creates a PE file in dynamic memory) 7->76 78 Detected unpacking (overwrites its own PE header) 7->78 88 3 other signatures 7->88 16 Mymp4.exe 4 7->16         started        18 notepad.exe 1 7->18         started        80 Writes to foreign memory regions 10->80 82 Allocates memory in foreign processes 10->82 84 Maps a DLL or memory area into another process 10->84 20 Mymp4.exe 10->20         started        23 notepad.exe 10->23         started        26 payment voucher832020.exe 12->26         started        86 Queues an APC in another process (thread injection) 14->86 28 notepad.exe 1 14->28         started        30 payment voucher832020.exe 4 14->30         started        process5 file6 56 Tries to steal Mail credentials (via file access) 20->56 58 Tries to harvest and steal ftp login credentials 20->58 60 Tries to harvest and steal browser information (history, passwords, etc) 20->60 62 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->62 42 C:\Users\user\AppData\Roaming\...\fv.vbs, ASCII 23->42 dropped 64 Writes to foreign memory regions 26->64 66 Allocates memory in foreign processes 26->66 68 Maps a DLL or memory area into another process 26->68 32 payment voucher832020.exe 2 7 26->32         started        36 notepad.exe 1 26->36         started        70 Drops VBS files to the startup folder 28->70 72 Delayed program exit found 28->72 signatures7 process8 file9 38 C:\Users\user\AppData\Roaming\...\Mymp4.exe, PE32 32->38 dropped 40 C:\Users\user\...\Mymp4.exe:Zone.Identifier, ASCII 32->40 dropped 44 Tries to steal Mail credentials (via file access) 32->44 46 Hides that the sample has been downloaded from the Internet (zone.identifier) 32->46 signatures10
Threat name:
Win32.Infostealer.Fareit
Status:
Malicious
First seen:
2020-08-03 10:03:49 UTC
File Type:
PE (Exe)
Extracted files:
66
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
upx keylogger stealer persistence spyware trojan family:agenttesla
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Drops startup file
Reads user/profile data of web browsers
Reads user/profile data of local email clients
UPX packed file
AgentTesla Payload
AgentTesla
Malware family:
AgentTesla.v2
Verdict:
Malicious
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_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
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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