MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8c715b2f18e39ff613f8fdd17388a7b1e51044a4a147b52cb40072fdfc9b49a. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a8c715b2f18e39ff613f8fdd17388a7b1e51044a4a147b52cb40072fdfc9b49a
SHA3-384 hash: c3f658bc0b2b016739bebc8122696f82c750ff593fc812921ec737a17da9dbaaef70e30195824d48f55a5274348d9ed4
SHA1 hash: 94425b344d5a6dde203d38948659659229df6119
MD5 hash: 5292c2a557d193f22ba04f9f7a81e521
humanhash: kilo-spring-lamp-nine
File name:ANNEX SALES CONTRACT DOC SIGNED.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:594'944 bytes
First seen:2020-07-09 12:16:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:00sOOsfAKn63xCymq3GjQGPnSmwByeQvdWlZlacTaulCSRO6:bdfAKWmq3xGvQ4oLTESR
Threatray 10'720 similar samples on MalwareBazaar
TLSH 6BC412F673D85F63EA344BF9593581904FF5B80F02AAE6AE4CC520CA2832F445A51E77
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: lasfragancias.com
Sending IP: 200.110.77.218
From: R2_SSC Russian <felectronica@lasfragancias.com>
Subject: Swift
Attachment: ANNEX SALES CONTRACT DOC SIGNED.z (contains "ANNEX SALES CONTRACT DOC SIGNED.exe")

AgentTesla FTP exfil server:
ftp.rebu.co.rw:21

Intelligence

File Origin
# of uploads :
1
# of downloads :
73
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/23758/
Detection(s):
SecuriteInfo.com.Fareit-FWJ5292C2A557D1.18784.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Launching the process to change network settings
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a8c715b2f18e39ff613f8fdd17388a7b1e51044a4a147b52cb40072fdfc9b49a/
Threat name:
ByteCode-MSIL.Trojan.Masslogger
Create hunting rule
Status:
Malicious
First seen:
2020-07-09 12:04:08 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vddrlmxrry476yj7r7orooekpmpfcbckjikhwuwliads7x6jwsna._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'710 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
persistence spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200709-yhqhzsvw8x/
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Modifies service
Adds Run entry 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
Please note that we are no longer able to provide a coverage score for Virus Total.

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 c741aadfab5eeb030ae984400a2aa2698c1347ee4f34905e4ef621f58458b7b5

AgentTesla

Executable exe a8c715b2f18e39ff613f8fdd17388a7b1e51044a4a147b52cb40072fdfc9b49a

(this sample)

  
Dropped by
MD5 c9008036f03e1f60d555efb194a3e09f
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/23758/
  
Dropped by
SHA256 c741aadfab5eeb030ae984400a2aa2698c1347ee4f34905e4ef621f58458b7b5

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