MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8ff3a9677131d5f17d08063f7133019c1571b41bca6ee0aad1223f1780674839. 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: 14


Intelligence 14 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8ff3a9677131d5f17d08063f7133019c1571b41bca6ee0aad1223f1780674839
SHA3-384 hash: 2f626fe1f7e8e4bd127c62cf16dd20dfb0c92fad8c8b0d11000245b418ccae7501a9955ebcfac86521fba04f7693d46c
SHA1 hash: 58542805f1d57f1133201a68e437363f48207ea0
MD5 hash: 1a2cd383838da17ae8823c722be036ca
humanhash: summer-moon-charlie-fourteen
File name:Purchase Order.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:888'832 bytes
First seen:2022-01-21 17:17:15 UTC
Last seen:2022-01-22 08:01:05 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 12288:vfOEhTgfJEjFpQE0Rt1tmFI7C9//YGRomAZB8dw/IPMBpwQ2T9q6+i9vYFGmEPg2:vf0ipQEaQ3QGEZB8EIUBpwFA6+i9vYF
TLSH T1BB15189D325071DFC867C972CEA81CA4EB61747A971BC207901312ADAE0DA97DF246F3
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
350
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchase Order.exe
Verdict:
Malicious activity
Analysis date:
2022-01-22 04:58:46 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/5b515c1d-810d-43fc-9327-b2c86b25c999

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/221549/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
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
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
ftp.exe obfuscated packed remote.exe
Link:
https://www.filescan.io/uploads/61eaead30f8c757253d5b321/reports/e5414a24-b73e-400d-9ff4-1c3e60a8e83d/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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b56eb5bf-21a1-4bbe-96c1-cd1a9b281ead
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/925401
Signature
.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
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 557879 Sample: Purchase Order.exe Startdate: 21/01/2022 Architecture: WINDOWS Score: 100 54 mail.narbon-co.com 2->54 64 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->64 66 Found malware configuration 2->66 68 Multi AV Scanner detection for dropped file 2->68 70 14 other signatures 2->70 8 Purchase Order.exe 7 2->8         started        12 kprUEGC.exe 4 2->12         started        14 kprUEGC.exe 2->14         started        signatures3 process4 file5 46 C:\Users\user\AppData\...\DWETXBqZbQa.exe, PE32 8->46 dropped 48 C:\Users\...\DWETXBqZbQa.exe:Zone.Identifier, ASCII 8->48 dropped 50 C:\Users\user\AppData\Local\Temp\tmp556.tmp, XML 8->50 dropped 52 C:\Users\user\...\Purchase Order.exe.log, ASCII 8->52 dropped 72 Adds a directory exclusion to Windows Defender 8->72 16 Purchase Order.exe 2 5 8->16         started        20 powershell.exe 25 8->20         started        22 schtasks.exe 1 8->22         started        74 Multi AV Scanner detection for dropped file 12->74 76 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->76 78 Machine Learning detection for dropped file 12->78 80 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 12->80 24 powershell.exe 12->24         started        26 schtasks.exe 12->26         started        28 kprUEGC.exe 12->28         started        30 kprUEGC.exe 12->30         started        signatures6 process7 file8 40 C:\Users\user\AppData\Roaming\...\kprUEGC.exe, PE32 16->40 dropped 42 C:\Windows\System32\drivers\etc\hosts, ASCII 16->42 dropped 44 C:\Users\user\...\kprUEGC.exe:Zone.Identifier, ASCII 16->44 dropped 56 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->56 58 Tries to steal Mail credentials (via file / registry access) 16->58 60 Tries to harvest and steal ftp login credentials 16->60 62 3 other signatures 16->62 32 conhost.exe 20->32         started        34 conhost.exe 22->34         started        36 conhost.exe 24->36         started        38 conhost.exe 26->38         started        signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8ff3a9677131d5f17d08063f7133019c1571b41bca6ee0aad1223f1780674839/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-01-21 17:18:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
36
AV detection:
18 of 27 (66.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=r7z2sz3rghk7c7iiay7xcmybtqkxdna3zjxobkwrei7rpadhja4q._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/220121-vvaf1aadd6/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
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
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
b094430d82ea5b31510b25ffadd0810ebb8b17094319fd29e1968f93b2319cd3
MD5 hash:
ed3630f32582fef7eb4dd7a306beffd3
SHA1 hash:
87d6bb24ba7be0680d0056985af0cfcc8987bc6e
Link:
https://www.unpac.me/results/c632fc6f-6e4d-44b8-8f31-5d8b5e13e6de/
SH256 hash:
870a83fb7f7680de9f4b8aa198f8db08a620f94f25869c767de228569e3d40bd
MD5 hash:
e0085c8ebd410cac54c4e742d6fc1dc9
SHA1 hash:
75d9c0c298d6a998d494dfe9f18ed2ea3fa1797d
Link:
https://www.unpac.me/results/c632fc6f-6e4d-44b8-8f31-5d8b5e13e6de/
SH256 hash:
9a54a02ecb5b40be7361d249d028e9f1bbe6be7c7a7b884bc45afaba65759f87
MD5 hash:
58c6e1fc99042a3d195f3d4ee9d005ac
SHA1 hash:
5d7a3da07341aea926ab211d2dfabc477ce7827a
Link:
https://www.unpac.me/results/c632fc6f-6e4d-44b8-8f31-5d8b5e13e6de/
SH256 hash:
8ff3a9677131d5f17d08063f7133019c1571b41bca6ee0aad1223f1780674839
MD5 hash:
1a2cd383838da17ae8823c722be036ca
SHA1 hash:
58542805f1d57f1133201a68e437363f48207ea0
Link:
https://www.unpac.me/results/c632fc6f-6e4d-44b8-8f31-5d8b5e13e6de/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/8ff3a9677131/report/overview.html
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/8ff3a9677131d5f17d08063f7133019c1571b41bca6ee0aad1223f1780674839

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:ach_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

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

Malspam

AgentTesla

Executable exe 8ff3a9677131d5f17d08063f7133019c1571b41bca6ee0aad1223f1780674839

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/221549/

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