MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 541731a2f26d908f45fd23e4c06c1c81f67eaee065f67fb5bf293095cc1590c9. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 541731a2f26d908f45fd23e4c06c1c81f67eaee065f67fb5bf293095cc1590c9
SHA3-384 hash: ad2435d9ea7a84637bfd6da067993b1603f91b23fc2978cc3b8ed63f834042989b78d833a6d96af01f834533008caebe
SHA1 hash: 9217a24d211e4425fd111f536ae843bdca314cbb
MD5 hash: dda6759e42b59654d50ffae796cd5f11
humanhash: friend-foxtrot-november-princess
File name:dda6759e42b59654d50ffae796cd5f11.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:978'944 bytes
First seen:2021-04-29 13:00:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:bxAB2v1geGppQ0SC5ARAKtEFiUktVVRjXK1Bor+F0NdYpt:7tCW0SC5hKtEkDVw1m+F+d8t
TLSH 16254CD1A398C8D6E86B05B17C6B563021E3AD5CB9A5D80C59DD771E26B33C2309FE0B
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
63
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/146690/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.688-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/702449
Signature
.NET source code contains very large array initializations
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
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 access)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 400146 Sample: iAC0tAdhnD.exe Startdate: 29/04/2021 Architecture: WINDOWS Score: 100 30 nostrumoilandgasbv.com 2->30 32 mail.nostrumoilandgasbv.com 2->32 46 Found malware configuration 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 Yara detected AgentTesla 2->50 52 4 other signatures 2->52 7 iAC0tAdhnD.exe 3 2->7         started        11 tnvLnx.exe 3 2->11         started        13 tnvLnx.exe 2 2->13         started        signatures3 process4 file5 28 C:\Users\user\AppData\...\iAC0tAdhnD.exe.log, ASCII 7->28 dropped 54 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->54 56 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->56 58 Injects a PE file into a foreign processes 7->58 15 iAC0tAdhnD.exe 2 5 7->15         started        60 Multi AV Scanner detection for dropped file 11->60 62 Machine Learning detection for dropped file 11->62 20 tnvLnx.exe 2 11->20         started        22 tnvLnx.exe 2 13->22         started        signatures6 process7 dnsIp8 34 nostrumoilandgasbv.com 15->34 36 mail.nostrumoilandgasbv.com 15->36 24 C:\Users\user\AppData\Roaming\...\tnvLnx.exe, PE32 15->24 dropped 26 C:\Users\user\...\tnvLnx.exe:Zone.Identifier, ASCII 15->26 dropped 38 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->38 40 Tries to steal Mail credentials (via file access) 15->40 42 Tries to harvest and steal ftp login credentials 15->42 44 2 other signatures 15->44 file9 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/541731a2f26d908f45fd23e4c06c1c81f67eaee065f67fb5bf293095cc1590c9/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-04-29 13:01:57 UTC
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kqltdixsnwii6rp5epsma3a4qh3h5lxamx3h7nn7feyjltavsdeq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210429-htmrd7a8jn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
11cf5a51e593c007ff4f91294cf505ffd5e425e56387c60d81e6479cc284cc3b
MD5 hash:
73cc3f7e7700e6a54cb5f291dffe5aa1
SHA1 hash:
09174f9fa55c9bac0540efb7a8c682878a32d02d
Link:
https://www.unpac.me/results/bbc6709e-0f4b-40ec-9532-0c399d3c7cfb/
SH256 hash:
541731a2f26d908f45fd23e4c06c1c81f67eaee065f67fb5bf293095cc1590c9
MD5 hash:
dda6759e42b59654d50ffae796cd5f11
SHA1 hash:
9217a24d211e4425fd111f536ae843bdca314cbb
Link:
https://www.unpac.me/results/bbc6709e-0f4b-40ec-9532-0c399d3c7cfb/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
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.

Web download

AgentTesla

Executable exe 541731a2f26d908f45fd23e4c06c1c81f67eaee065f67fb5bf293095cc1590c9

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/146690/
  
URLhaus
https://urlhaus.abuse.ch/url/1179154/
  
Delivery method
Distributed via web download

Comments