MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fb72ec8effa840d66cb8783f6045590f7296d2df886b9ac5db48a684a3f87e29. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fb72ec8effa840d66cb8783f6045590f7296d2df886b9ac5db48a684a3f87e29
SHA3-384 hash: c61dc8d846b5fe4b8915cc9dcc36e59cf904cda8063e925ee721a9541cef744a121f256c9e440911bbd58ccc55602fcd
SHA1 hash: d1a85030d2657d723f770398cae1fea105b59cba
MD5 hash: c3d923cb90dcb9a363f08d8f5a679939
humanhash: colorado-timing-golf-rugby
File name:documents.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:698'880 bytes
First seen:2022-05-24 08:19:05 UTC
Last seen:2022-05-24 08:50:04 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:q4XxXq3wPx4YDXhrRS7c4B+afMAamZPQ1uOZ4k32WmQu+tF5/ROYB:zswPxjRrR4BXfbamZIZvtZpB
TLSH T148E4126773ACD987D9B808FC54A072C103F1D3391AA7E7C85DE0B4FA84C2B9549CAA57
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)
File icon (PE):PE icon
dhash icon d2961d3133038ee8 (24 x AgentTesla, 18 x FormBook, 8 x Loki)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
342
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
documents.exe
Verdict:
Malicious activity
Analysis date:
2022-05-24 08:45:05 UTC
Tags:
agenttesla
Link:
https://app.any.run/tasks/c9e9cd6c-65f6-40be-9c93-a71997f2e5aa

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/273988/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/628c956f3ec49f83a6c6e4b2/reports/db2701f3-cacc-4cd1-aa6f-05feb75b38e3/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:
Unknown
Link:
https://analyze.intezer.com/analyses/a63fdb92-5b8d-480f-b339-77c86c591f35
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1000459
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
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
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 632954 Sample: documents.exe Startdate: 24/05/2022 Architecture: WINDOWS Score: 100 54 Snort IDS alert for network traffic 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 8 other signatures 2->60 7 documents.exe 7 2->7         started        11 Tnpak.exe 2 2->11         started        13 Tnpak.exe 2->13         started        process3 file4 36 C:\Users\user\AppData\Roaming\dvrqnR.exe, PE32 7->36 dropped 38 C:\Users\user\AppData\Local\...\tmp97DB.tmp, XML 7->38 dropped 40 C:\Users\user\AppData\...\documents.exe.log, ASCII 7->40 dropped 62 Uses schtasks.exe or at.exe to add and modify task schedules 7->62 64 Adds a directory exclusion to Windows Defender 7->64 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 42 subnet-group.com 206.189.39.129, 49757, 587 DIGITALOCEAN-ASNUS United States 15->42 44 mail.subnet-group.com 15->44 32 C:\Users\user\AppData\Roaming\...\Tnpak.exe, PE32 15->32 dropped 34 C:\Windows\System32\drivers\etc\hosts, ASCII 15->34 dropped 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->46 48 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->48 50 Tries to steal Mail credentials (via file / registry access) 15->50 52 5 other signatures 15->52 28 conhost.exe 20->28         started        30 conhost.exe 22->30         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fb72ec8effa840d66cb8783f6045590f7296d2df886b9ac5db48a684a3f87e29/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-05-24 07:15:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7nzozdx7vbanm3fypa7warkzb5zjnuw7rbvzvro3jctiji7ypyuq._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 suricata trojan
Link:
https://tria.ge/reports/220524-j8er4agce2/
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:
dc7c22b9ecaa6641a9fe41d496542cb29f9d748b244eabc08192b4063b5ad6c4
MD5 hash:
fb2086102520d1d0ba469f46bbea0c0b
SHA1 hash:
90aa11070a73381747576c982139126a088773f3
Link:
https://www.unpac.me/results/5ad81ac1-58c8-4405-8b70-d927c9c47a23/
SH256 hash:
8eea34761755bde6873f711d42e0cea8c3a08b702c192fb02749c0a6af01c7ec
MD5 hash:
41e199eb276a7ead0799dbf2948af888
SHA1 hash:
58e52db4474a979245a79d8f7686eff2f7be6f5f
Link:
https://www.unpac.me/results/5ad81ac1-58c8-4405-8b70-d927c9c47a23/
SH256 hash:
72c91fdad59e06742ab11408962929f766b4fbe34e6b4e730dfb02707c08a430
MD5 hash:
06b823e64681bae033de886e22f0c8b6
SHA1 hash:
0791fc63e09cf5b5e77ebebf46271b7e66a39c7c
Link:
https://www.unpac.me/results/5ad81ac1-58c8-4405-8b70-d927c9c47a23/
SH256 hash:
a3326460cceac07b629a7942095da09cffed439ed18336d34866549c4054b73a
MD5 hash:
285179aca5c077b2e30d76a2b8ba0ad5
SHA1 hash:
02ebdba6ba79261d0b3e4718925dfcaa9a06078e
Link:
https://www.unpac.me/results/5ad81ac1-58c8-4405-8b70-d927c9c47a23/
SH256 hash:
fb72ec8effa840d66cb8783f6045590f7296d2df886b9ac5db48a684a3f87e29
MD5 hash:
c3d923cb90dcb9a363f08d8f5a679939
SHA1 hash:
d1a85030d2657d723f770398cae1fea105b59cba
Link:
https://www.unpac.me/results/5ad81ac1-58c8-4405-8b70-d927c9c47a23/
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/fb72ec8effa840d66cb8783f6045590f7296d2df886b9ac5db48a684a3f87e29

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: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

File information

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

Malspam

AgentTesla

Executable exe fb72ec8effa840d66cb8783f6045590f7296d2df886b9ac5db48a684a3f87e29

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/273988/

Comments