MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91c7b4d4562824503e151f7cc5eddcc5df9a767f2857ca9579a6c9ad6e496ae0. 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: 12


Intelligence 12 IOCs YARA 7 File information Comments

SHA256 hash: 91c7b4d4562824503e151f7cc5eddcc5df9a767f2857ca9579a6c9ad6e496ae0
SHA3-384 hash: 76e50ff41011a4f0e8b74d324be091ba6393b5167af6bf4d8a6ca7abf150acdf73eb5beceb919b7eb5fcc60cce43d7ec
SHA1 hash: 7d52b5be42d02886ec30510577cf489877b81989
MD5 hash: 645011bd5b9d6f19ead54ab9a6ac8244
humanhash: eighteen-lima-juliet-black
File name:SWIFT USD 35.150.00 - 220519__9980001.exe
Download: download sample
Signature AgentTesla
File size:24'064 bytes
First seen:2022-05-19 08:21:30 UTC
Last seen:2022-05-21 05:31:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 384:zBxwKpowBeQLKkDe4lWkVDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDydRseJ:THo14lWkVDDDDDDDDDDDDDDDDDDDDDDc
Threatray 17'130 similar samples on MalwareBazaar
TLSH T150B2748D5F94861FFBB39DF979AA921333766D8A9371A71744C8086D582F10B08B3D0D
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 08080786e869b68a (12 x AgentTesla, 4 x Formbook, 2 x AsyncRAT)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
289
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
SWIFT USD 35.150.00 - 220519__9980001.exe
Verdict:
Malicious activity
Analysis date:
2022-05-20 03:43:36 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
Creating a file in the %AppData% subdirectories
Creating a file
Using the Windows Management Instrumentation requests
Reading critical registry keys
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
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
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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 signatures2 2 Behavior Graph ID: 629979 Sample: SWIFT USD 35.150.00 - 22051... Startdate: 19/05/2022 Architecture: WINDOWS Score: 100 72 Malicious sample detected (through community Yara rule) 2->72 74 Multi AV Scanner detection for submitted file 2->74 76 Yara detected AgentTesla 2->76 78 6 other signatures 2->78 7 SWIFT USD 35.150.00 - 220519__9980001.exe 16 7 2->7         started        12 Uojdc.exe 3 2->12         started        14 Uojdc.exe 14 4 2->14         started        process3 dnsIp4 54 cdn.discordapp.com 162.159.130.233, 443, 49740, 49785 CLOUDFLARENETUS United States 7->54 46 C:\Users\user\AppData\Roaming\...\Uojdc.exe, PE32 7->46 dropped 48 C:\Users\user\...\Uojdc.exe:Zone.Identifier, ASCII 7->48 dropped 50 SWIFT USD 35.150.0...19__9980001.exe.log, ASCII 7->50 dropped 80 Writes to foreign memory regions 7->80 82 Allocates memory in foreign processes 7->82 84 Injects a PE file into a foreign processes 7->84 16 InstallUtil.exe 14 2 7->16         started        20 cmd.exe 1 7->20         started        56 162.159.129.233, 443, 49788 CLOUDFLARENETUS United States 12->56 58 192.168.2.1 unknown unknown 12->58 22 InstallUtil.exe 12->22         started        24 cmd.exe 12->24         started        26 InstallUtil.exe 12->26         started        28 InstallUtil.exe 12->28         started        86 Multi AV Scanner detection for dropped file 14->86 88 Machine Learning detection for dropped file 14->88 30 cmd.exe 14->30         started        32 InstallUtil.exe 14->32         started        file5 signatures6 process7 dnsIp8 52 api.telegram.org 149.154.167.220, 443, 49787, 49804 TELEGRAMRU United Kingdom 16->52 60 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->60 62 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->62 64 Tries to steal Mail credentials (via file / registry access) 16->64 66 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 16->66 34 conhost.exe 20->34         started        36 timeout.exe 1 20->36         started        68 Tries to harvest and steal ftp login credentials 22->68 70 Tries to harvest and steal browser information (history, passwords, etc) 22->70 38 conhost.exe 24->38         started        40 timeout.exe 24->40         started        42 conhost.exe 30->42         started        44 timeout.exe 30->44         started        signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-05-19 08:02:29 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
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:
91c7b4d4562824503e151f7cc5eddcc5df9a767f2857ca9579a6c9ad6e496ae0
MD5 hash:
645011bd5b9d6f19ead54ab9a6ac8244
SHA1 hash:
7d52b5be42d02886ec30510577cf489877b81989
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_EXE_Packed_SmartAssembly
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:INDICATOR_SUSPICIOUS_EXE_DiscordURL
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
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 91c7b4d4562824503e151f7cc5eddcc5df9a767f2857ca9579a6c9ad6e496ae0

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments