MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d31cf6f73f1b908e23652b6863e5562d58395fe823b93c0bbd82c26a4ec065b3. 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 7 File information Comments

SHA256 hash: d31cf6f73f1b908e23652b6863e5562d58395fe823b93c0bbd82c26a4ec065b3
SHA3-384 hash: baf3e42756938a54a2645981f2dd0a78d60794dbc8b4cbd6c4a7f3ad0aaeeec6a38d6429a49cdfb0a6a91b645319efe6
SHA1 hash: 84739d20f558aa0362198348bf194023244b8c51
MD5 hash: faa3afe5235932cd4f7867b2c182385f
humanhash: white-wisconsin-lithium-south
File name:SWIFTCOPY REF920019838910579011108311-PDF.exe
Download: download sample
Signature AgentTesla
File size:1'459'936 bytes
First seen:2023-10-05 09:29:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e74c8ae3503a17604f2a2d84ae3389c4 (4 x AgentTesla, 2 x SnakeKeylogger, 1 x DarkCloud)
ssdeep 24576:tCz1FW0kZAN15lLuKXtAmXad32MbKOl+tZdCkeRrUQxZBM35hZ0w8z:tCxkc3LuktAmAmMGOkjBQ65hU
Threatray 92 similar samples on MalwareBazaar
TLSH T156653384ACD697C9CDB607F048C014CBD67DB8FBA4B859A3B0A116EE9FC5BC06621D47
TrID 64.7% (.EXE) UPX compressed Win64 Executable (70117/5/12)
25.0% (.EXE) UPX compressed Win32 Executable (27066/9/6)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.8% (.EXE) OS/2 Executable (generic) (2029/13)
1.8% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter abuse_ch
Tags:AgentTesla exe signed Telegram

Code Signing Certificate

Organisation:Microsoft Code Signing PCA 2011
Issuer:Microsoft Code Signing PCA 2011
Algorithm:sha256WithRSAEncryption
Valid from:2023-10-02T23:09:59Z
Valid to:2024-10-02T23:09:59Z
Serial number: 8d8e5fa5a949afb7b3e69779f3ead852
Thumbprint Algorithm:SHA256
Thumbprint: c474acc6823bf6cd0fc1968fae70bbac02be3202dc6c44029bc2e8942bae2263
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
1
# of downloads :
283
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Forced system process termination
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Creating a window
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Unauthorized injection to a system process
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
89%
Tags:
hacktool overlay packed packed packed upx
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
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1320148 Sample: SWIFTCOPY_REF92001983891057... Startdate: 05/10/2023 Architecture: WINDOWS Score: 100 31 api4.ipify.org 2->31 33 api.telegram.org 2->33 35 api.ipify.org 2->35 51 Found malware configuration 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 Yara detected Telegram RAT 2->55 57 4 other signatures 2->57 7 SWIFTCOPY_REF920019838910579011108311-PDF.exe 2->7         started        10 btCUxw.exe 4 2->10         started        12 btCUxw.exe 3 2->12         started        signatures3 process4 signatures5 59 Writes to foreign memory regions 7->59 61 Allocates memory in foreign processes 7->61 63 Injects a PE file into a foreign processes 7->63 14 InstallUtil.exe 1 4 7->14         started        19 InstallUtil.exe 12 2 7->19         started        21 InstallUtil.exe 7->21         started        27 2 other processes 7->27 23 conhost.exe 10->23         started        25 conhost.exe 12->25         started        process6 dnsIp7 37 api4.ipify.org 104.237.62.212, 443, 49692 WEBNXUS United States 14->37 39 api.telegram.org 149.154.167.220, 443, 49693, 49700 TELEGRAMRU United Kingdom 14->39 29 C:\Users\user\AppData\Roaming\...\btCUxw.exe, PE32 14->29 dropped 41 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->41 43 Tries to steal Mail credentials (via file / registry access) 14->43 45 Tries to harvest and steal browser information (history, passwords, etc) 14->45 49 2 other signatures 14->49 47 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->47 file8 signatures9
Threat name:
Win64.Trojan.GenSteal
Status:
Malicious
First seen:
2023-10-03 09:03:19 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
14 of 36 (38.89%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan upx
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
UPX packed file
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot6397238688:AAEpHHJSGgb8uU35gOKv_cNJ1uJTVg7khLM/
Unpacked files
SH256 hash:
0d185e845de3dbf21c698483f34bd1da58cb7575625d635ae343b632319c6f07
MD5 hash:
182ba92b46520d24a525569ab236cd7f
SHA1 hash:
22e2fa850b9ca27aac82ca2d71f897ba29a8074e
SH256 hash:
d31cf6f73f1b908e23652b6863e5562d58395fe823b93c0bbd82c26a4ec065b3
MD5 hash:
faa3afe5235932cd4f7867b2c182385f
SHA1 hash:
84739d20f558aa0362198348bf194023244b8c51
Malware family:
AgentTesla.v4
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:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
Rule name:shad0w_beacon_16June
Author:SBousseaden
Description:Shad0w beacon compressed
Reference:https://github.com/bats3c/shad0w
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_agent_tesla_bytecodes_sep_2023
Author:Matthew @embee_research

File information


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

Malspam

AgentTesla

Executable exe d31cf6f73f1b908e23652b6863e5562d58395fe823b93c0bbd82c26a4ec065b3

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments