MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 820e1b2bff7decc1832bc8804a8329eb79278bcffce98a525fd12de46f89fffb. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 820e1b2bff7decc1832bc8804a8329eb79278bcffce98a525fd12de46f89fffb
SHA3-384 hash: 112eceb38130ea2c20e00c4414e2249305933542859d335c2ecb353a4867e77055cd47a5604b90b8cba8d2f35bf8eb80
SHA1 hash: 8ea5b6cf0198aab1eca0ddee14182e8fd6d38935
MD5 hash: 4ca48341486cc3b16b8d5af405fc46c0
humanhash: beer-venus-sweet-orange
File name:Purchase Order.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:782'848 bytes
First seen:2023-10-05 09:56:44 UTC
Last seen:2023-10-06 06:03:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:2iMri507DfNdCX446rveSnC9JqbVooxS/KbLZPj/+DQyoNb8hsOvOpZ8iOg:297NdCX4BvewC9YbVooxSinlj/QQyoJp
TLSH T1D4F4B50BBA4786B2E2491736D2AB1C04C361D983733BEB1B794EA39E7D037A79C45507
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% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter cocaman
Tags:AgentTesla exe INVOICE

Intelligence

File Origin
# of uploads :
8
# of downloads :
283
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Purchase Order.exe
Verdict:
Malicious activity
Analysis date:
2023-10-05 10:15:11 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/fd76c6dc-7fd1-45de-804b-8a120ad42d3f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.RansomX-gen.11580.28115.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending an HTTP GET request
Creating a file in the %AppData% directory
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Sending a custom TCP request
DNS request
Reading critical registry keys
Creating a window
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control lolbin masquerade packed replace
Link:
https://www.filescan.io/uploads/651e886e4d45a517a341e2c6/reports/76456122-aee8-47ee-a157-57a9ae8b9f21/overview
Verdict:
Malicious
Labled as:
Ser.MSILHeracles.Generic
Link:
https://www.hybrid-analysis.com/sample/820e1b2bff7decc1832bc8804a8329eb79278bcffce98a525fd12de46f89fffb
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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/46f0f395-f8e3-45d2-9408-002f035faa20
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1320125
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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 Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1320125 Sample: Purchase_Order.exe Startdate: 05/10/2023 Architecture: WINDOWS Score: 100 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus / Scanner detection for submitted sample 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 5 other signatures 2->53 6 Feumdok.exe 14 5 2->6         started        10 Purchase_Order.exe 16 5 2->10         started        13 Feumdok.exe 2->13         started        process3 dnsIp4 55 Antivirus detection for dropped file 6->55 57 Multi AV Scanner detection for dropped file 6->57 59 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->59 61 Machine Learning detection for dropped file 6->61 15 Feumdok.exe 2 6->15         started        27 qu.ax 92.118.112.4, 443, 49795, 49798 GUDAEV-ASRU Russian Federation 10->27 25 C:\Users\user\AppData\Roaming\Feumdok.exe, PE32 10->25 dropped 63 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->63 65 Injects a PE file into a foreign processes 10->65 19 Purchase_Order.exe 2 10->19         started        21 Purchase_Order.exe 10->21         started        29 92.118.112.119, 443, 49804 GUDAEV-ASRU Russian Federation 13->29 23 Feumdok.exe 13->23         started        file5 signatures6 process7 dnsIp8 31 api.ipify.org 15->31 33 api4.ipify.org 64.185.227.156, 443, 49796, 49799 WEBNXUS United States 19->33 35 premium89.web-hosting.com 63.250.38.2, 49797, 49803, 49819 NAMECHEAP-NETUS United States 19->35 37 api.ipify.org 19->37 39 api.ipify.org 23->39 41 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 23->41 43 Tries to steal Mail credentials (via file / registry access) 23->43 45 Tries to harvest and steal browser information (history, passwords, etc) 23->45 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/820e1b2bff7decc1832bc8804a8329eb79278bcffce98a525fd12de46f89fffb/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-10-05 07:44:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qihbwk77pxwmdazlzcaevazj5n4spc6p7tuyuus72ew6i34j775q._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  10/10
Tags:
persistence spyware stealer
Link:
https://tria.ge/reports/231005-lywzqsac7w/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
820e1b2bff7decc1832bc8804a8329eb79278bcffce98a525fd12de46f89fffb
MD5 hash:
4ca48341486cc3b16b8d5af405fc46c0
SHA1 hash:
8ea5b6cf0198aab1eca0ddee14182e8fd6d38935
Link:
https://www.unpac.me/results/e7f2531f-3bf2-493c-becb-03ead12090d7/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.93
Link:
https://yomi.yoroi.company/submissions/820e1b2bff7decc1832bc8804a8329eb79278bcffce98a525fd12de46f89fffb

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:NET
Create hunting rule
Author:malware-lu
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

rar 583eb071017d6c29cc14420706bdffcd0a5863e9f49cbd739bcc47567aaa719f

AgentTesla

Executable exe 820e1b2bff7decc1832bc8804a8329eb79278bcffce98a525fd12de46f89fffb

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 583eb071017d6c29cc14420706bdffcd0a5863e9f49cbd739bcc47567aaa719f
  
Dropped by
SHA256 d5fd934a84ba92016068ae11f3694eb8722ab14e83f7dd0de76f2fb5d87b8421
  
Dropped by
MD5 c4e36ba849d98969b1725b8854988750
  
Dropped by
MD5 775abdffe0c10754f96e4429a125672d

Comments