MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7797da9505bd2ab985d9b1233977b6b11ab9f0e8da31a47b44e0af23c94af807. 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: 7797da9505bd2ab985d9b1233977b6b11ab9f0e8da31a47b44e0af23c94af807
SHA3-384 hash: 9794f6bc690def20f0ed8f85888b20c6ef68222344e49560b6c5be823a2727d0d93e875f1d373cd523ca595cfa2e9962
SHA1 hash: 83d2df42374f2be834f919351b3859c27141200e
MD5 hash: 5d0ab57551192dac1a9e8ccf269bd9bc
humanhash: mars-may-mobile-glucose
File name:接收DHL的文件，pdf8897209547.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:665'600 bytes
First seen:2020-07-30 07:40:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:FyvQl/8wQXHRWCsPIXy/b71bKFVf0DY/DzI+c6Hux820cSq:IolEwQXHcPIXyv1uFVftLzChx8ZcX
Threatray 11'315 similar samples on MalwareBazaar
TLSH A4E4B0257961C904C2EE5A36CCDF41084BFCED513693DB2ABA9B336D68723A67C064CD
Reporter abuse_ch
Tags:AgentTesla CHN DHL exe geo


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: hwsrv-752879.hostwindsdns.com
Sending IP: 104.168.176.91
From: DHL Express Cargo <delivery@dhl.com>
Subject: 通知運輸文件
Attachment: 接收DHL的文件，pdf8897209547.iso (contains "接收DHL的文件，pdf8897209547.exe")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
76
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/35383/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP 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/403328
Signature
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
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 dnsIp2 2 Behavior Graph ID: 253897 Sample: #U63a5#U6536DHL#U7684#U6587... Startdate: 30/07/2020 Architecture: WINDOWS Score: 100 28 g.msn.com 2->28 30 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->30 34 Found malware configuration 2->34 36 Sigma detected: Scheduled temp file as task from temp location 2->36 38 Yara detected AgentTesla 2->38 40 5 other signatures 2->40 8 #U63a5#U6536DHL#U7684#U6587#U4ef6#Uff0cpdf8897209547.exe 7 2->8         started        signatures3 process4 file5 20 C:\Users\user\AppData\...\&startupname&.exe, PE32 8->20 dropped 22 C:\...\&startupname&.exe:Zone.Identifier, ASCII 8->22 dropped 24 C:\Users\user\AppData\Local\Temp\tmp4AA.tmp, XML 8->24 dropped 26 #U63a5#U6536DHL#U7...f8897209547.exe.log, ASCII 8->26 dropped 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->42 44 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->44 12 #U63a5#U6536DHL#U7684#U6587#U4ef6#Uff0cpdf8897209547.exe 2 8->12         started        16 schtasks.exe 1 8->16         started        signatures6 process7 dnsIp8 32 smtp.privateemail.com 199.193.7.228, 49734, 587 NAMECHEAP-NETUS United States 12->32 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->46 48 Tries to steal Mail credentials (via file access) 12->48 50 Tries to harvest and steal ftp login credentials 12->50 52 Tries to harvest and steal browser information (history, passwords, etc) 12->52 18 conhost.exe 16->18         started        signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7797da9505bd2ab985d9b1233977b6b11ab9f0e8da31a47b44e0af23c94af807/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-07-30 07:42:07 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=o6l5vfifxuvltbozwerts55wwenlt4hi3iy2i62e4cxshskk7adq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 11'305 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/200730-tke2lt42ej/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Program crash
Program crash
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/7797da9505bd2ab985d9b1233977b6b11ab9f0e8da31a47b44e0af23c94af807

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

iso ecba4ffd294028e3efee57e37e53dffaebd5bc9bfaff7ecfaf18ce6d42bfa3d0

AgentTesla

Executable exe 7797da9505bd2ab985d9b1233977b6b11ab9f0e8da31a47b44e0af23c94af807

(this sample)

  
Dropped by
MD5 2edbdc343aaf62cb95c12884f1867fe8
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/35383/
  
Dropped by
SHA256 ecba4ffd294028e3efee57e37e53dffaebd5bc9bfaff7ecfaf18ce6d42bfa3d0

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