MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8feea10c1f16265d329f0240bbe70bb0ee1b3504929906cb00fd8f17c3448200. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8feea10c1f16265d329f0240bbe70bb0ee1b3504929906cb00fd8f17c3448200
SHA3-384 hash: d2640467c1d22d49813a439b53a5981453ea5999d2e687b5f8161840c1ccbc3f905f540f132642d17f9811708105ea5a
SHA1 hash: 5e4d96836bd6c48c8566340ad780786535ce5ca4
MD5 hash: 77f4705c67e402471cfeedcc411a28d5
humanhash: sad-arizona-alanine-hydrogen
File name:MKO094099004 AUGUST 2020 DOCS.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:713'216 bytes
First seen:2020-08-06 07:15:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:FwBZf0+XHumg1PZ9q/UBFpfLpYkUlJ7eUexwH92m:QRXlAPZuUBzLakUH3exwHH
Threatray 10'942 similar samples on MalwareBazaar
TLSH A1E47C2461710A97D7FC80B44F0D72445AE386B91A9FF7C1EDB32895F2826B16B2DC1B
Reporter abuse_ch
Tags:AgentTesla exe MailChannels


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: burlywood.elm.relay.mailchannels.net
Sending IP: 23.83.212.26
From: martin@landmremovals.co.za
Subject: PO. FSTG-2005007
Attachment: MKO094099004 AUGUST 2020 DOCS.ISO (contains "MKO094099004 AUGUST 2020 DOCS.exe")

AgentTesla SMTP exfil server:
mail.flsrnidth.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
65
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/40233/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/412389
Signature
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
Moves itself to temp directory
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: 258444 Sample: MKO094099004 AUGUST 2020 DOCS.exe Startdate: 06/08/2020 Architecture: WINDOWS Score: 100 72 Found malware configuration 2->72 74 Sigma detected: Scheduled temp file as task from temp location 2->74 76 Yara detected AgentTesla 2->76 78 7 other signatures 2->78 7 MKO094099004 AUGUST 2020 DOCS.exe 7 2->7         started        11 YYtJku.exe 2->11         started        13 YYtJku.exe 5 2->13         started        process3 file4 44 C:\Users\user\AppData\...\IIUvPCcRzWPqbI.exe, PE32 7->44 dropped 46 C:\...\IIUvPCcRzWPqbI.exe:Zone.Identifier, ASCII 7->46 dropped 48 C:\Users\user\AppData\Local\...\tmp7FD2.tmp, XML 7->48 dropped 50 C:\...\MKO094099004 AUGUST 2020 DOCS.exe.log, ASCII 7->50 dropped 80 Injects a PE file into a foreign processes 7->80 15 MKO094099004 AUGUST 2020 DOCS.exe 2 5 7->15         started        20 schtasks.exe 1 7->20         started        22 YYtJku.exe 11->22         started        24 schtasks.exe 11->24         started        26 YYtJku.exe 11->26         started        28 YYtJku.exe 11->28         started        82 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 13->82 84 Machine Learning detection for dropped file 13->84 86 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 13->86 30 YYtJku.exe 2 13->30         started        32 schtasks.exe 1 13->32         started        signatures5 process6 dnsIp7 52 flsrnidth.com 167.114.220.88, 49729, 49738, 587 OVHFR Canada 15->52 54 mail.flsrnidth.com 15->54 40 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 15->40 dropped 42 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 15->42 dropped 60 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->60 62 Moves itself to temp directory 15->62 64 Tries to steal Mail credentials (via file access) 15->64 34 conhost.exe 20->34         started        56 mail.flsrnidth.com 22->56 58 192.168.2.1 unknown unknown 22->58 66 Tries to harvest and steal ftp login credentials 22->66 68 Tries to harvest and steal browser information (history, passwords, etc) 22->68 70 Hides that the sample has been downloaded from the Internet (zone.identifier) 22->70 36 conhost.exe 24->36         started        38 conhost.exe 32->38         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8feea10c1f16265d329f0240bbe70bb0ee1b3504929906cb00fd8f17c3448200/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-06 07:17:06 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=r7xkcda7cytf2mu7ajalxzylwdxbwnieskmqnsya7whrpq2eqiaa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'932 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer trojan spyware family:agenttesla persistence
Link:
https://tria.ge/reports/200806-4m5f7jkbhs/
Behaviour
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: RenamesItself
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email clients
AgentTesla Payload
AgentTesla
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/8feea10c1f16265d329f0240bbe70bb0ee1b3504929906cb00fd8f17c3448200

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 668b345a3a75f52f128606632e907074bef24e0542d5601b32ae4e1bb93467a2

AgentTesla

Executable exe 8feea10c1f16265d329f0240bbe70bb0ee1b3504929906cb00fd8f17c3448200

(this sample)

  
Dropped by
MD5 669fa143b3b949eab8532bf3c40c938b
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/40233/
  
Dropped by
SHA256 668b345a3a75f52f128606632e907074bef24e0542d5601b32ae4e1bb93467a2

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