MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 25590683d57bc9e4c00397a33e477100dc1bf6a65489bb65621b56c9e24b9f5e. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 25590683d57bc9e4c00397a33e477100dc1bf6a65489bb65621b56c9e24b9f5e
SHA3-384 hash: 8ed2dd272b061471bb5769f7c7a9ae5de4f44563955a8d9b3925c70e6cf97e64438cc329acf6d6b2d3d2052600717f88
SHA1 hash: 329cd0709fa3c922569e89a8e21f20f645f2cb6f
MD5 hash: 18c010f78d01952fb527691da4f01940
humanhash: lion-zulu-mountain-missouri
File name:18c010f78d01952fb527691da4f01940.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:636'928 bytes
First seen:2020-11-02 15:51:25 UTC
Last seen:2020-11-08 14:32:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:KhG1MfVb/U3bo5WplOmdX9RX57pu5pSO3Gn1S1yNTy5UmXnBiz4L9j1hsTa8dxoS:f6VbsnFIpSOGYpQz41z6oDfQJjyV+Q
TLSH 0AD402FEB71E0869CE6F43F0641A15179FE8D88910838FA7E91E90B65F9774428DF0A4
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
AgentTesla SMTP exfil server:
smtp.yandex.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
65
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/81844/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
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.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/518327
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for sample
Maps a DLL or memory area into another process
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 steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 308266 Sample: jR2ZOfEQvS.exe Startdate: 02/11/2020 Architecture: WINDOWS Score: 92 29 Found malware configuration 2->29 31 Multi AV Scanner detection for submitted file 2->31 33 Yara detected AgentTesla 2->33 35 Machine Learning detection for sample 2->35 7 jR2ZOfEQvS.exe 1 2->7         started        10 YYtJku.exe 2 2->10         started        12 YYtJku.exe 1 2->12         started        process3 signatures4 37 Maps a DLL or memory area into another process 7->37 14 jR2ZOfEQvS.exe 7->14         started        17 RegAsm.exe 2 4 7->17         started        19 conhost.exe 10->19         started        21 conhost.exe 12->21         started        process5 signatures6 43 Writes to foreign memory regions 14->43 45 Maps a DLL or memory area into another process 14->45 23 RegAsm.exe 3 14->23         started        47 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->47 49 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 17->49 51 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->51 process7 file8 27 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 23->27 dropped 39 Tries to steal Mail credentials (via file access) 23->39 41 Hides that the sample has been downloaded from the Internet (zone.identifier) 23->41 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/25590683d57bc9e4c00397a33e477100dc1bf6a65489bb65621b56c9e24b9f5e/
Threat name:
ByteCode-MSIL.Infostealer.DarkStealer
Create hunting rule
Status:
Malicious
First seen:
2020-11-02 12:13:06 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=evmqna6vppe6jqads6rt4r3radobx5vgkse3wzlcdnlmtyslt5pa._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/201102-gkl48853xx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
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
AgentTesla
Unpacked files
SH256 hash:
25590683d57bc9e4c00397a33e477100dc1bf6a65489bb65621b56c9e24b9f5e
MD5 hash:
18c010f78d01952fb527691da4f01940
SHA1 hash:
329cd0709fa3c922569e89a8e21f20f645f2cb6f
Link:
https://www.unpac.me/results/eba5f1e4-c276-462b-8d1d-11e6eb84e3ca/
SH256 hash:
c824d755c2e63f47c7a6a26a81acb9f80ebc96bb7857a09ea72e81dfc22b871e
MD5 hash:
08204707532491afc3311fbc42a7afb9
SHA1 hash:
29fcb085da2324da45ce28628a727551f6f328f0
Link:
https://www.unpac.me/results/eba5f1e4-c276-462b-8d1d-11e6eb84e3ca/
SH256 hash:
d6dfa7f6dfbb2f97893dbcbccdf662b8e553e5f624ab6ed13865df9f16fff646
MD5 hash:
a920d7bc10787c7516b422b778542ee0
SHA1 hash:
4ba7010c6c39005f0d277fd6cf40c14fef7aa147
Link:
https://www.unpac.me/results/eba5f1e4-c276-462b-8d1d-11e6eb84e3ca/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/25590683d57bc9e4c00397a33e477100dc1bf6a65489bb65621b56c9e24b9f5e

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 25590683d57bc9e4c00397a33e477100dc1bf6a65489bb65621b56c9e24b9f5e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/779163/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/81844/

Comments