MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 644ba86dd5681951ce4ee926d5a596de429ae7c161bb9de32a7d8e825986585e. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 644ba86dd5681951ce4ee926d5a596de429ae7c161bb9de32a7d8e825986585e
SHA3-384 hash: 4e8892453f0b430c648c397190b823c695a7cf7511c0a10a4b432130e4a05bd67c0566b16e0c28a56d3578da2f860852
SHA1 hash: 5f30d98b1ea3aa8ca086bcbfa8ae4d5df7081466
MD5 hash: eeb2586b016149e4ac3fe2b099b0373e
humanhash: carbon-lemon-harry-mango
File name:Servo purchase Order.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:326'026 bytes
First seen:2023-03-01 08:02:15 UTC
Last seen:2023-03-01 16:20:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:vYa6eueeIPSWE/TeaHGqUcj/3AZ+zLVdIa8voTAyWd8o8YE:vYguVKSVqSVUcjk+ueAyWdxE
Threatray 1'016 similar samples on MalwareBazaar
TLSH T19864235816E060CBF9A34F3A497ED6155FD9E40824B89ADF3B526FCC3E625809D1E332
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter cocaman
Tags:AgentTesla exe INVOICE

Intelligence

File Origin
# of uploads :
3
# of downloads :
212
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Servo purchase Order.exe
Verdict:
Malicious activity
Analysis date:
2023-03-01 08:03:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e2086bcb-62da-4a83-bf73-5db2c59ab1f1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/370762/
Detection(s):
Sanesecurity.Rogue.0hr.20230301-0039.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63ff06b85961badabfa96893/reports/07bc7c4a-b542-4156-97a0-0d0183181a8d/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/644ba86dd5681951ce4ee926d5a596de429ae7c161bb9de32a7d8e825986585e
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/86a63eef-a34f-43ad-89f5-e8dd85f7e025
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1184728
Signature
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Maps a DLL or memory area into another process
May check the online IP address of the machine
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)
Sample has a suspicious name (potential lure to open the executable)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 817586 Sample: Servo purchase Order.exe Startdate: 01/03/2023 Architecture: WINDOWS Score: 100 48 Multi AV Scanner detection for submitted file 2->48 50 Yara detected AgentTesla 2->50 52 Sample has a suspicious name (potential lure to open the executable) 2->52 54 2 other signatures 2->54 7 Servo purchase Order.exe 19 2->7         started        10 yuenjscxhdmuqa.exe 2->10         started        13 yuenjscxhdmuqa.exe 2->13         started        process3 file4 28 C:\Users\user\AppData\Local\Temp\guaxlb.exe, PE32 7->28 dropped 15 guaxlb.exe 1 2 7->15         started        62 Multi AV Scanner detection for dropped file 10->62 19 WerFault.exe 4 10 10->19         started        22 WerFault.exe 10 13->22         started        signatures5 process6 dnsIp7 30 C:\Users\user\AppData\...\yuenjscxhdmuqa.exe, PE32 15->30 dropped 40 Multi AV Scanner detection for dropped file 15->40 42 Detected unpacking (changes PE section rights) 15->42 44 Detected unpacking (creates a PE file in dynamic memory) 15->44 46 6 other signatures 15->46 24 guaxlb.exe 15 2 15->24         started        32 192.168.2.1 unknown unknown 19->32 file8 signatures9 process10 dnsIp11 34 api4.ipify.org 173.231.16.76, 443, 49696 WEBNXUS United States 24->34 36 shivalikcropsciences.com 103.35.120.78, 49699, 587 STPI-NOIDASoftwareTechnologyParksofIndiaBlock-IVIN India 24->36 38 api.ipify.org 24->38 56 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->56 58 Tries to steal Mail credentials (via file / registry access) 24->58 60 Tries to harvest and steal browser information (history, passwords, etc) 24->60 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/644ba86dd5681951ce4ee926d5a596de429ae7c161bb9de32a7d8e825986585e/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-03-01 00:12:52 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 25 (80.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mrf2q3ovnamvdtso5etnljmw3zbjvz6bmg5z3yzkpwhiewmglbpa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
29f4afb67b804b8593cc1005912906ef576a5954fb3fb044d06010d4697c8c15
AgentTesla
2c9702d9867875e0886e52ee656385ce638a879a9deb55ce4ed52f3d6335e849
AgentTesla
3672a8eb0dd83a097ffd82461ba28956fba31e179c80f3744bcdbd52a5b77121
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42abd330c19397d45018aa34f642aa60fc5b01d110174229401794d20ff0c9db
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43967396d49a9c4dac102f6026d32f305db550a4a2bd96cd9ca36583be08badd
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48fbd6968e8aa1914d0eb20fea7f0b3b6d84458379ca56eaa21a2d86c79191d9
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620e2051b6bed232f84070e04ef93e43118c4ad92d6f1c12c002148890204b64
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7581026b5d2f0521ed0e40ef5ad28dec7c9b3e2b113cceea5eb63483af1463d6
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afaf95c3abfaf5c45250e22bb5b87a6125771ed440be05e51d944ec2661df07f
AgentTesla
+ 1'006 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/230301-jxn7dsfc82/
Behaviour
Suspicious behavior: MapViewOfSection
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
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
7016e9bee9e8f8095f1dc68276f21e508aaaafcee43a71bab333e759e6db05bc
MD5 hash:
ce0f13c1111293ae5a9c8a01648f9dca
SHA1 hash:
62014fcf5f81a77689a42c520c7736e37154a7e9
Link:
https://www.unpac.me/results/2b370c7d-3110-4c81-a344-74d9aa208898/
SH256 hash:
644ba86dd5681951ce4ee926d5a596de429ae7c161bb9de32a7d8e825986585e
MD5 hash:
eeb2586b016149e4ac3fe2b099b0373e
SHA1 hash:
5f30d98b1ea3aa8ca086bcbfa8ae4d5df7081466
Link:
https://www.unpac.me/results/2b370c7d-3110-4c81-a344-74d9aa208898/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/644ba86dd5681951ce4ee926d5a596de429ae7c161bb9de32a7d8e825986585e

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:pe_imphash
Create hunting rule
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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

zip ab9069af38e75eafdd34fb782a1f99f96e4c8cabc0ac9c0022b5c96e5b08b058

AgentTesla

Executable exe 644ba86dd5681951ce4ee926d5a596de429ae7c161bb9de32a7d8e825986585e

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 ab9069af38e75eafdd34fb782a1f99f96e4c8cabc0ac9c0022b5c96e5b08b058
Cape
Cape
https://www.capesandbox.com/analysis/370762/
  
Dropped by
MD5 64325474ecdc8b4f278322086c593c42

Comments