MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8d2625935b4f6a1a8f1698ec24d609319f9f1f86811e1e36f198e9467c3103b7. 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: 8d2625935b4f6a1a8f1698ec24d609319f9f1f86811e1e36f198e9467c3103b7
SHA3-384 hash: b61b334f139d0525796f613d4dc60b92c40943f41bcc2ae53f2e71d085de1d3b0bc38267fa7b196937c393857754084e
SHA1 hash: 835ae5da31a8df188cc2d0e012d12ab87bd844fa
MD5 hash: fb53af25e91f7d1f46909fe6712503c3
humanhash: lima-coffee-cup-enemy
File name:TWS9359357001767Z-2020_客户询价_dwg.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'028'608 bytes
First seen:2020-08-31 12:58:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'450 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:Byna7jn68acxC36g92zdreWT3LzDeKwY2rfeRM:B3689xC36I2zwWHIY2CR
Threatray 9'741 similar samples on MalwareBazaar
TLSH D125E113131E9B2ED8087779359000DCE6F26F82FB35E1D8DE4B31A9646A24DB5ED683
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail-smail-vm49.hanmail.net
Sending IP: 203.133.180.237
From: hao781109@126.com <badyjung1@hanmail.net>
Subject: TWS9357001767Z
Attachment: TWS9359357001767Z.z (contains "TWS9359357001767Z-2020_客户询价_dwg.exe")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
82
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/53538/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a process with a hidden window
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/455466
Signature
Found malware configuration
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)
Sigma detected: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 280108 Sample: TWS9359357001767Z-2020_#U5b... Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 31 Found malware configuration 2->31 33 Multi AV Scanner detection for dropped file 2->33 35 Sigma detected: Scheduled temp file as task from temp location 2->35 37 7 other signatures 2->37 7 TWS9359357001767Z-2020_#U5ba2#U6237#U8be2#U4ef7_dwg.exe 7 2->7         started        process3 file4 19 C:\Users\user\AppData\...\jCzscZwjQSIjwJ.exe, PE32 7->19 dropped 21 C:\...\jCzscZwjQSIjwJ.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\Temp\tmp1.tmp, XML 7->23 dropped 25 TWS9359357001767Z-...2#U4ef7_dwg.exe.log, ASCII 7->25 dropped 39 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->39 41 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->41 43 Injects a PE file into a foreign processes 7->43 11 TWS9359357001767Z-2020_#U5ba2#U6237#U8be2#U4ef7_dwg.exe 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 smtp.yandex.ru 77.88.21.158, 49729, 587 YANDEXRU Russian Federation 11->27 29 smtp.yandex.com 11->29 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->45 47 Tries to steal Mail credentials (via file access) 11->47 49 Tries to harvest and steal ftp login credentials 11->49 51 Tries to harvest and steal browser information (history, passwords, etc) 11->51 17 conhost.exe 15->17         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8d2625935b4f6a1a8f1698ec24d609319f9f1f86811e1e36f198e9467c3103b7/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2020-08-31 03:26:28 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rutcle23j5vbvdywtdwcjvqjggpz6h4gqepb4nxrtduum7brao3q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
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8fc4747ee4e9b358ddd1dffff19b0b3f5166e8b4ef15257be68d3fa2decb347e
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9c62e75f2dc168671bddfe8cad2b102197c10d9039d8917a7637585ff603dbdd
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ccdd4387470eb34b9bdef3aa3c4b7a4c51ae84b8c7a88fc7d059713ab1249f40
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e29e9d9beb5ce8187decf038cdc0b1d3102b4cfe43715a3b4f934098a943ebed
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f4156e15b465020e6687a23a63eb4b7c84a18f90ead4665087c6c2e5a09b455d
AgentTesla
+ 9'731 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  4/10
Tags:
n/a
Link:
https://tria.ge/reports/200831-yc1andm4cn/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Program crash
Drops file in Windows directory
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8d2625935b4f6a1a8f1698ec24d609319f9f1f86811e1e36f198e9467c3103b7

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

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

Malspam

AgentTesla

z 544c552df8b50bce73f0641fea88a121ff31ec60a690e781b1ae0daa640fd45a

AgentTesla

Executable exe 8d2625935b4f6a1a8f1698ec24d609319f9f1f86811e1e36f198e9467c3103b7

(this sample)

  
Dropped by
MD5 31294b6a0d3d6df7f4e9947cbcd8b707
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/53538/
  
Dropped by
SHA256 544c552df8b50bce73f0641fea88a121ff31ec60a690e781b1ae0daa640fd45a

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