MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e3458b4811b78ac8a2391f21b3579fef0ec7eb4f462a1c4cb3301d7c038253bd. 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 2 File information Comments

SHA256 hash: e3458b4811b78ac8a2391f21b3579fef0ec7eb4f462a1c4cb3301d7c038253bd
SHA3-384 hash: 847e3b4568422406fede8f9c8922a9947314b74fe4ff09f76f59b630d6b630db6f0b8ad6e01731edbd71f35ebf83c469
SHA1 hash: a14803503787ecf4f2bee7418e6c8fc6c1764a22
MD5 hash: 86580cce644592431d12ec72c510033b
humanhash: maine-delaware-fruit-mississippi
File name:Re_payment_invoices.pdf.exe
Download: download sample
Signature AgentTesla
File size:795'136 bytes
First seen:2022-05-25 13:18:44 UTC
Last seen:2022-05-25 13:51:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:cJRuOU/lWD5rNnBhD6g/zBAgNgJKFq7F3:cnuOoWLnrVGgNgTF3
Threatray 17'956 similar samples on MalwareBazaar
TLSH T1C505E0883A50719ECC67C871C9B83C68A6216D7693CB92079813329D9B3F58FFF554A3
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 4f87aaacacaa834f (15 x AgentTesla, 1 x AsyncRAT, 1 x Loki)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
294
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
Re_payment_invoices.pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-05-25 13:20:21 UTC
Tags:
agenttesla

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

Behaviour
Creating a window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed wacatac
Result
Verdict:
UNKNOWN
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 very large array initializations
Adds a directory exclusion to Windows Defender
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 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 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 an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 634073 Sample: Re_payment_invoices.pdf.exe Startdate: 25/05/2022 Architecture: WINDOWS Score: 100 33 Found malware configuration 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Multi AV Scanner detection for dropped file 2->37 39 12 other signatures 2->39 7 Re_payment_invoices.pdf.exe 7 2->7         started        process3 file4 23 C:\Users\user\AppData\...\uRXcKUAwtl.exe, PE32 7->23 dropped 25 C:\Users\...\uRXcKUAwtl.exe:Zone.Identifier, ASCII 7->25 dropped 27 C:\Users\user\AppData\Local\...\tmp71FE.tmp, XML 7->27 dropped 29 C:\Users\...\Re_payment_invoices.pdf.exe.log, ASCII 7->29 dropped 41 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->41 43 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->43 45 Uses schtasks.exe or at.exe to add and modify task schedules 7->45 47 Adds a directory exclusion to Windows Defender 7->47 11 Re_payment_invoices.pdf.exe 15 6 7->11         started        15 powershell.exe 25 7->15         started        17 schtasks.exe 1 7->17         started        signatures5 process6 dnsIp7 31 api.telegram.org 149.154.167.220, 443, 49759, 49761 TELEGRAMRU United Kingdom 11->31 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->49 51 Tries to steal Mail credentials (via file / registry access) 11->51 53 Tries to harvest and steal ftp login credentials 11->53 55 Tries to harvest and steal browser information (history, passwords, etc) 11->55 19 conhost.exe 15->19         started        21 conhost.exe 17->21         started        signatures8 process9
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-05-25 09:29:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Behaviour
Creates scheduled task(s)
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
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot5325978928:AAHoEA8kN-e_klm03BeIYzK4e9Fov_x58QI/sendDocument
Unpacked files
SH256 hash:
c720d8d87e5744ef459c160ae3ae85984519c5cee89d4acd3d4156f929ebcca2
MD5 hash:
86f922d84e1b89f646bc23cb3d878a9c
SHA1 hash:
b61f4401c1a144d704988cf4e55dd9a71f8d8263
SH256 hash:
84fca7127ebd44a562fd7c49442df1ad71b69b335904cebc57ebc0e9d4918866
MD5 hash:
05af3c2baf487f0f29c6c7f6e9d2e34e
SHA1 hash:
a17321696988c96e199a88d2355184a11868471a
SH256 hash:
0283941f1f7ae72f88bb3044addc3f4274549c3fd771612ec3df95c80b708c9e
MD5 hash:
abcf7824b477074db7ac154a80d1e329
SHA1 hash:
9c6982829bff318776560846de7bcc39d3c16f7f
SH256 hash:
79708c223bf2025b4f2e5e9ed594030ce373703993ba15bbb9ba57e3cf413ce4
MD5 hash:
b3302dadd995985ee338d55865cf4418
SHA1 hash:
80f3286ca7a256859799f7c1bb1b4b18e165716d
SH256 hash:
2d6f32a7e9ee3538e59122438876b6a17889c6047128d6f0de9253fb1b632538
MD5 hash:
dd9fe5d35934439e2d0406edc96e8296
SHA1 hash:
366613a8b22f7b344e273cf66035c6937f828b91
SH256 hash:
e3458b4811b78ac8a2391f21b3579fef0ec7eb4f462a1c4cb3301d7c038253bd
MD5 hash:
86580cce644592431d12ec72c510033b
SHA1 hash:
a14803503787ecf4f2bee7418e6c8fc6c1764a22
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:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Malspam

AgentTesla

Executable exe e3458b4811b78ac8a2391f21b3579fef0ec7eb4f462a1c4cb3301d7c038253bd

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

Comments