MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 87e7fce64ab334392c6676f01885c5210b1b3235a76314d1326b6eb285978ffb. 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: 13


Intelligence 13 IOCs YARA 20 File information Comments

SHA256 hash: 87e7fce64ab334392c6676f01885c5210b1b3235a76314d1326b6eb285978ffb
SHA3-384 hash: b486d09275d2721a662f03ea8a172ef90af2d3cefdda461e4e122cbef519481ac819071f645b6daa0f203e64a30cac9a
SHA1 hash: a79f0c3ad3fbd315081ecc4a30e7df0bdf702dc4
MD5 hash: 6ce4bf2c3e0bc56d8ae9dfa5ebb0cf61
humanhash: missouri-quebec-black-twenty
File name:Quote OAU_JANQTRFA00541·PDF.scr
Download: download sample
Signature AgentTesla
File size:1'041'648 bytes
First seen:2024-01-19 16:37:16 UTC
Last seen:Never
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:bdhJMzzcxkom1pqWwt4Rj+KZWsWDnPQHA9tZybqkEggm9uc1I8E4FPJnkt+sChJd:PJMzzhPXo+OnIA9eWkEgzIKL2Pi
TLSH T1A7259EC61B1459E1CF8629F0D22757206BE0FEB51416EF8B179474AAB9B3FEA3740321
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 60b4b692d1bbb1a9 (1 x AgentTesla, 1 x zgRAT)
Reporter abuse_ch
Tags:AgentTesla exe scr


Avatar
abuse_ch
AgentTesla SMTP exfil server:

Intelligence


File Origin
# of uploads :
1
# of downloads :
316
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:
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, PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
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 steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Generic
Status:
Suspicious
First seen:
2024-01-19 06:01:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
55
AV detection:
12 of 38 (31.58%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
agenttesla_v4 agenttesla
Result
Malware family:
Score:
  10/10
Tags:
family:agenttesla family:zgrat keylogger rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
AgentTesla
Detect ZGRat V1
ZGRat
Unpacked files
SH256 hash:
87e7fce64ab334392c6676f01885c5210b1b3235a76314d1326b6eb285978ffb
MD5 hash:
6ce4bf2c3e0bc56d8ae9dfa5ebb0cf61
SHA1 hash:
a79f0c3ad3fbd315081ecc4a30e7df0bdf702dc4
Detections:
Typical_Malware_String_Transforms
Malware family:
AgentTesla
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:AgentTeslaV3
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:DebuggerCheck__RemoteAPI
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Author:malware-lu
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Typical_Malware_String_Transforms
Author:Florian Roth (Nextron Systems)
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Author:Elastic Security

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

Executable exe 87e7fce64ab334392c6676f01885c5210b1b3235a76314d1326b6eb285978ffb

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments