MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 44d1b83e45fb3dbe8b75eb80688ade9c740c269bddb93cb66069c34ab701c949. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 44d1b83e45fb3dbe8b75eb80688ade9c740c269bddb93cb66069c34ab701c949
SHA3-384 hash: 2d7eaa13087ec2798c7c280fa9405e4034f3b99dacc4f2013fddfcc5eb0ab2040dbebd76c8df139b8e408e6d6c8be538
SHA1 hash: 6b25a66b4e9d6bc1b26ffdd9bb04b6875bc4ee21
MD5 hash: 7f51709ddf908c549beab2d8399e5682
humanhash: cup-double-comet-queen
File name:doc202206230400400302202.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:24'064 bytes
First seen:2022-06-24 01:22:32 UTC
Last seen:2022-06-24 05:21:42 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 384:zWtamGBfOF8/s1exdSqy/lW7VDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDydP:iUmAWFT1B/lW7VDDDDDDDDDDDDDDDDDo
TLSH T14EB2518D5F54851FFBF39DF9B9AB522323B66DCA5271A71384C8186A582F00718A3D4C
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 :
247
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/282821/
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Launching a process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
83%
Tags:
packed
Link:
https://www.filescan.io/uploads/62b512337e9a4f0a86db12d0/reports/57328362-59d5-48e4-85cb-e70a984805f0/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fd183543-72e1-449f-88e6-1dc1be228039
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1019015
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
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 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 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 Costura Assembly Loader
Yara detected Generic Downloader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 651511 Sample: doc202206230400400302202.exe Startdate: 24/06/2022 Architecture: WINDOWS Score: 100 66 Snort IDS alert for network traffic 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 Multi AV Scanner detection for submitted file 2->70 72 8 other signatures 2->72 7 doc202206230400400302202.exe 16 7 2->7         started        11 Xjyfthrs.exe 3 2->11         started        14 Xjyfthrs.exe 14 4 2->14         started        process3 dnsIp4 50 kolim.tk 162.240.68.177, 443, 49743, 49779 UNIFIEDLAYER-AS-1US United States 7->50 42 C:\Users\user\AppData\...\Xjyfthrs.exe, PE32 7->42 dropped 44 C:\Users\...\Xjyfthrs.exe:Zone.Identifier, ASCII 7->44 dropped 46 C:\Users\...\doc202206230400400302202.exe.log, ASCII 7->46 dropped 16 InstallUtil.exe 14 2 7->16         started        20 cmd.exe 1 7->20         started        52 192.168.2.1 unknown unknown 11->52 74 Writes to foreign memory regions 11->74 76 Injects a PE file into a foreign processes 11->76 22 InstallUtil.exe 11->22         started        24 cmd.exe 11->24         started        78 Machine Learning detection for dropped file 14->78 26 cmd.exe 14->26         started        28 InstallUtil.exe 14->28         started        file5 signatures6 process7 dnsIp8 48 api.telegram.org 149.154.167.220, 443, 49778, 49846 TELEGRAMRU United Kingdom 16->48 54 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->54 56 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->56 58 Tries to steal Mail credentials (via file / registry access) 16->58 60 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 16->60 30 conhost.exe 20->30         started        32 timeout.exe 1 20->32         started        62 Tries to harvest and steal ftp login credentials 22->62 64 Tries to harvest and steal browser information (history, passwords, etc) 22->64 34 conhost.exe 24->34         started        36 timeout.exe 24->36         started        38 conhost.exe 26->38         started        40 timeout.exe 26->40         started        signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/44d1b83e45fb3dbe8b75eb80688ade9c740c269bddb93cb66069c34ab701c949/
Threat name:
ByteCode-MSIL.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2022-06-24 00:38:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
4 of 41 (9.76%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iti3qpsf7m635c3v5oagrcw6tr2ayju33w4tzntanhbuvnybzfeq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220624-brszdsggcr/
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:
44d1b83e45fb3dbe8b75eb80688ade9c740c269bddb93cb66069c34ab701c949
MD5 hash:
7f51709ddf908c549beab2d8399e5682
SHA1 hash:
6b25a66b4e9d6bc1b26ffdd9bb04b6875bc4ee21
Link:
https://www.unpac.me/results/670b1a52-65b6-46d3-93bc-72425cf609a7/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/44d1b83e45fb/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/44d1b83e45fb3dbe8b75eb80688ade9c740c269bddb93cb66069c34ab701c949

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
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
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 44d1b83e45fb3dbe8b75eb80688ade9c740c269bddb93cb66069c34ab701c949

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/282821/

Comments