MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8166c3c857a7a3ba99515cf6ae242a78050fba7608e24a88e2559e0063a187a. 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: f8166c3c857a7a3ba99515cf6ae242a78050fba7608e24a88e2559e0063a187a
SHA3-384 hash: bfaedbbba5a77ee302800e1250f92df03468ad147f38df38e21b01fc1292a312ed9f3811edd64a423e6265bffd3717c6
SHA1 hash: 38eedbd76187557a6d7e57c8ba23c813957a6649
MD5 hash: b8790726ffc556228ed87038d4deaf64
humanhash: ack-minnesota-video-four
File name:INV 9200009437 FOC.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:586'752 bytes
First seen:2020-08-19 14:09:33 UTC
Last seen:2020-08-19 14:45:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:Fx0JQay8Vgnp+0ocyqvJiYv1D85amjr3EBpNcCM7q5Fl6jkk:Fx0uay8yM03JNvarfEKCMiQjL
Threatray 9'610 similar samples on MalwareBazaar
TLSH 3DC4029650A52328C43C39F980110C935BB79C6A9215FBA641F476FA25BF623CF7633E
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: whirlpool-china.com
Sending IP: 103.133.104.130
From: Charles Luo <charles_luo@whirlpool-china.com>
Reply-To: charles_luo@whirlpool-china.com
Subject: Re: Samples shipment
Attachment: INV 9200009437 FOC.rar (contains "INV 9200009437 FOC.exe")

AgentTesla SMTP exfil server:
mail.procetfreight.co.ke:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
75
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/48607/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.405.12565.32361.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
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
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/438392
Signature
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the hosts 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: 271666 Sample: INV 9200009437 FOC.exe Startdate: 20/08/2020 Architecture: WINDOWS Score: 100 41 Found malware configuration 2->41 43 Sigma detected: Scheduled temp file as task from temp location 2->43 45 Yara detected AgentTesla 2->45 47 7 other signatures 2->47 8 INV 9200009437 FOC.exe 7 2->8         started        process3 file4 27 C:\Users\user\AppData\Roaming\mWOzAchyb.exe, PE32 8->27 dropped 29 C:\Users\...\mWOzAchyb.exe:Zone.Identifier, ASCII 8->29 dropped 31 C:\Users\user\AppData\Local\...\tmpBD65.tmp, XML 8->31 dropped 33 C:\Users\user\...\INV 9200009437 FOC.exe.log, ASCII 8->33 dropped 49 Injects a PE file into a foreign processes 8->49 12 INV 9200009437 FOC.exe 2 8->12         started        17 schtasks.exe 1 8->17         started        19 INV 9200009437 FOC.exe 8->19         started        signatures5 process6 dnsIp7 37 procetfreight.co.ke 67.225.192.148, 49736, 587 LIQUIDWEBUS United States 12->37 39 mail.procetfreight.co.ke 12->39 35 C:\Windows\System32\drivers\etc\hosts, ASCII 12->35 dropped 51 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->51 53 Tries to steal Mail credentials (via file access) 12->53 55 Tries to harvest and steal ftp login credentials 12->55 57 2 other signatures 12->57 21 reg.exe 1 12->21         started        23 conhost.exe 17->23         started        file8 signatures9 process10 process11 25 conhost.exe 21->25         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f8166c3c857a7a3ba99515cf6ae242a78050fba7608e24a88e2559e0063a187a/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-19 04:11:33 UTC
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7algypefpj5dxkmvcxhwvyscu6afb65hmchcjkeoevm6abr2db5a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 9'600 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200819-nce9ktsxta/
Behaviour
Creates scheduled task(s)
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
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/f8166c3c857a7a3ba99515cf6ae242a78050fba7608e24a88e2559e0063a187a

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

rar 765db4988f796360ccb7598a3be2d4de34b3b7cc462481072ebd234b10c982a7

AgentTesla

Executable exe f8166c3c857a7a3ba99515cf6ae242a78050fba7608e24a88e2559e0063a187a

(this sample)

  
Dropped by
MD5 336c5f0f80f3320af59371e6c0509987
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 765db4988f796360ccb7598a3be2d4de34b3b7cc462481072ebd234b10c982a7
Cape
Cape
https://www.capesandbox.com/analysis/48607/

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