MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4097d7bdbe0b5665b4e59568b0eafc0d5514b36245445deb38e88911ed90417c. 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 5 File information Comments

SHA256 hash: 4097d7bdbe0b5665b4e59568b0eafc0d5514b36245445deb38e88911ed90417c
SHA3-384 hash: 42153d26b7685e7d0e6440b38b2514e83ab7eeed05025e293ef3b14175ae58550e729db572fab091e6d8159ce7bb7beb
SHA1 hash: 9480f718021365e7872fcee51a98d04150c70b8b
MD5 hash: ceef930b348536483d1bb8253ceb86a6
humanhash: eight-april-coffee-arizona
File name:doc20220524001901029010011.exe
Download: download sample
Signature AgentTesla
File size:24'576 bytes
First seen:2022-05-24 02:22:49 UTC
Last seen:2022-05-24 02:59:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 384:3b+8751yldyAl8x7EbSJBA/lW7VDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDydgk:3b+K2Tp/lW7VDDDDDDDDDDDDDDDDDDDC
Threatray 17'267 similar samples on MalwareBazaar
TLSH T1E1B2828E5F84851EFBB39DF9B9BB921333B6AD9A5271A71744C8186D582F00708B3D4C
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% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 08080786e869b68a (12 x AgentTesla, 4 x Formbook, 2 x AsyncRAT)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
283
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
doc20220524001901029010011.exe
Verdict:
Malicious activity
Analysis date:
2022-05-24 02:28:05 UTC
Tags:
agenttesla

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Launching a process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed wacatac
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
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
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 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 / registry access)
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 632822 Sample: doc20220524001901029010011.exe Startdate: 24/05/2022 Architecture: WINDOWS Score: 100 51 api.telegram.org 2->51 71 Found malware configuration 2->71 73 Malicious sample detected (through community Yara rule) 2->73 75 Multi AV Scanner detection for submitted file 2->75 77 6 other signatures 2->77 8 doc20220524001901029010011.exe 16 7 2->8         started        13 Bgpjkkcqm.exe 14 4 2->13         started        15 Bgpjkkcqm.exe 3 2->15         started        signatures3 process4 dnsIp5 53 cdn.discordapp.com 162.159.134.233, 443, 49742, 49754 CLOUDFLARENETUS United States 8->53 43 C:\Users\user\AppData\...\Bgpjkkcqm.exe, PE32 8->43 dropped 45 C:\Users\...\Bgpjkkcqm.exe:Zone.Identifier, ASCII 8->45 dropped 47 C:\...\doc20220524001901029010011.exe.log, ASCII 8->47 dropped 79 Writes to foreign memory regions 8->79 81 Allocates memory in foreign processes 8->81 83 Injects a PE file into a foreign processes 8->83 17 InstallUtil.exe 14 2 8->17         started        21 cmd.exe 1 8->21         started        85 Multi AV Scanner detection for dropped file 13->85 23 InstallUtil.exe 13->23         started        25 cmd.exe 13->25         started        55 162.159.130.233, 443, 49758 CLOUDFLARENETUS United States 15->55 57 192.168.2.1 unknown unknown 15->57 27 cmd.exe 15->27         started        29 InstallUtil.exe 15->29         started        file6 signatures7 process8 dnsIp9 49 api.telegram.org 149.154.167.220, 443, 49753, 49768 TELEGRAMRU United Kingdom 17->49 59 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->59 61 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->61 63 Tries to steal Mail credentials (via file / registry access) 17->63 65 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 17->65 31 conhost.exe 21->31         started        33 timeout.exe 1 21->33         started        67 Tries to harvest and steal ftp login credentials 23->67 69 Tries to harvest and steal browser information (history, passwords, etc) 23->69 35 conhost.exe 25->35         started        37 timeout.exe 25->37         started        39 conhost.exe 27->39         started        41 timeout.exe 27->41         started        signatures10 process11
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-05-24 00:44:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot5310370668:AAEdB2nfvvFj53YoaxJ-AleA2m93WUxxyM0/sendDocument
Unpacked files
SH256 hash:
4097d7bdbe0b5665b4e59568b0eafc0d5514b36245445deb38e88911ed90417c
MD5 hash:
ceef930b348536483d1bb8253ceb86a6
SHA1 hash:
9480f718021365e7872fcee51a98d04150c70b8b
Malware family:
AgentTesla.v3
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_SUSPICIOUS_EXE_DiscordURL
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Discord_Attachments_URL
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an Discord Attachments URL. This is often used by Malware to download further payloads
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

File information


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

Malspam

AgentTesla

Executable exe 4097d7bdbe0b5665b4e59568b0eafc0d5514b36245445deb38e88911ed90417c

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

Comments