MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4b635a8116cc2929c800b1a83e9e05a8085ca8e483f06d6293f22420c96f656. 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 2 File information Comments

SHA256 hash: d4b635a8116cc2929c800b1a83e9e05a8085ca8e483f06d6293f22420c96f656
SHA3-384 hash: 7493bab4b98525b460de61f9f75054beb7b427ad20395dc8efde887101838d7112d25b81f650306c922d69f4baf7963c
SHA1 hash: 397d6b2418b82fa1ceaecbca3e306987ebd84f86
MD5 hash: aae58a0fcb1cac78a149cd447d25ee1c
humanhash: spring-texas-undress-four
File name:PURCHASE ORDER.exe
Download: download sample
Signature AgentTesla
File size:869'888 bytes
First seen:2022-05-23 16:19:02 UTC
Last seen:2022-05-23 17:36:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:IOvK+PNrzQQg0n/9aLz2vCTkfVieg8UjzKM+Ya86xA8DAY0Q:IGNnQQg0laLqvCTkfV9g8C+MYxbjz
Threatray 17'067 similar samples on MalwareBazaar
TLSH T1BB05236024F4DA2ECEC7CFFCFC30154A6F62512BE826DFE8056659C54276B4220B366E
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)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
292
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
PURCHASE ORDER.exe
Verdict:
Malicious activity
Analysis date:
2022-05-23 16:39:20 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
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit 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.adwa.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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)
Modifies the hosts file
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)
Snort IDS alert for network traffic
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 schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 632529 Sample: PURCHASE ORDER.exe Startdate: 23/05/2022 Architecture: WINDOWS Score: 100 56 Snort IDS alert for network traffic 2->56 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 12 other signatures 2->62 7 PURCHASE ORDER.exe 7 2->7         started        11 Tnpak.exe 2 2->11         started        13 Tnpak.exe 1 2->13         started        process3 file4 36 C:\Users\user\AppData\...\wCFTkLPzVEAVY.exe, PE32 7->36 dropped 38 C:\...\wCFTkLPzVEAVY.exe:Zone.Identifier, ASCII 7->38 dropped 40 C:\Users\user\AppData\Local\...\tmp822B.tmp, XML 7->40 dropped 42 C:\Users\user\...\PURCHASE ORDER.exe.log, ASCII 7->42 dropped 64 Writes to foreign memory regions 7->64 66 Adds a directory exclusion to Windows Defender 7->66 68 Injects a PE file into a foreign processes 7->68 15 RegSvcs.exe 2 4 7->15         started        20 powershell.exe 25 7->20         started        22 schtasks.exe 1 7->22         started        24 conhost.exe 11->24         started        26 conhost.exe 13->26         started        signatures5 process6 dnsIp7 44 subnet-group.com 206.189.39.129, 49777, 587 DIGITALOCEAN-ASNUS United States 15->44 46 mail.subnet-group.com 15->46 32 C:\Users\user\AppData\Roaming\...\Tnpak.exe, PE32 15->32 dropped 34 C:\Windows\System32\drivers\etc\hosts, ASCII 15->34 dropped 48 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->48 50 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->50 52 Tries to steal Mail credentials (via file / registry access) 15->52 54 5 other signatures 15->54 28 conhost.exe 20->28         started        30 conhost.exe 22->30         started        file8 signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-05-23 15:54:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer suricata 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
Adds Run key to start application
Checks computer location settings
Drops file in Drivers directory
AgentTesla
suricata: ET MALWARE AgentTesla Exfil Via SMTP
Unpacked files
SH256 hash:
fdd10fb67e6276b3d848c92d4686f56b2ecbea1d629795a241ca6306a2f62d55
MD5 hash:
f20fd214bbda1a459a3eb415eec86017
SHA1 hash:
c658f61e4f308a69a4509649439814166c655e84
SH256 hash:
3ccf62991ac8ae2d178e665d6718c974ebe45e4c3864c274ec8284f7900139d1
MD5 hash:
73cdcd73736f225bfe54789b52b1e904
SHA1 hash:
c65832ca96467c761ec6b2f31a8c83471e97fb45
SH256 hash:
fbaac3ebba6b66c872521f241da04d5d3c14cc2dade6ff10e9d0550247d891b3
MD5 hash:
114797c3ff3dd9ddf1d80f52d0f8b61b
SHA1 hash:
a68519e642455b57dd68a0228129f517f614af9c
SH256 hash:
8eea34761755bde6873f711d42e0cea8c3a08b702c192fb02749c0a6af01c7ec
MD5 hash:
41e199eb276a7ead0799dbf2948af888
SHA1 hash:
58e52db4474a979245a79d8f7686eff2f7be6f5f
SH256 hash:
0fa09338099cb293d0a86964dc775372a70587b7b266d2b48af9c6ae5530f5a0
MD5 hash:
a78c42245e9031221086c3247d60af4a
SHA1 hash:
1d81c6d2cdde462b26f19363154878a35dc5faf4
SH256 hash:
d4b635a8116cc2929c800b1a83e9e05a8085ca8e483f06d6293f22420c96f656
MD5 hash:
aae58a0fcb1cac78a149cd447d25ee1c
SHA1 hash:
397d6b2418b82fa1ceaecbca3e306987ebd84f86
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 d4b635a8116cc2929c800b1a83e9e05a8085ca8e483f06d6293f22420c96f656

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

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