MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 764c22b1c44a21388bbcbb0b4ccae5b3a0214f1742bd786eaa991b9abf9deaf8. 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: 4


Intelligence 4 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 764c22b1c44a21388bbcbb0b4ccae5b3a0214f1742bd786eaa991b9abf9deaf8
SHA3-384 hash: 8d87a64915f4dd61deca2aacaa2f5366adac89535c612697122b958a71cfde5aa7dcb0d7897fbfb6e2f3ad6438ecbf78
SHA1 hash: 69352f93d57cf5cf05d2c4d6297afaa5fcedf38b
MD5 hash: c957de3ba744ea4b5b77e3a582baa112
humanhash: emma-grey-december-mango
File name:Signed Invoice.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'498'112 bytes
First seen:2020-05-26 07:58:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3d95adbf13bbe79dc24dccb401c12091 (881 x AgentTesla, 737 x FormBook, 236 x SnakeKeylogger)
ssdeep 24576:itb20pkaCqT5TBWgNQ7aIGTg0KzHau/QG8OHd3NhxcG2vjPQuY5q6A:vVg5tQ7aIGTg0maHCd9hcLPQQ5
Threatray 11'035 similar samples on MalwareBazaar
TLSH 9065DF1233DE8365C3B251737A15B7816EBBFC2506A1F4FB2F94CA3DA8301214A5E667
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: cltcl.com
Sending IP: 103.99.1.173
From: "陳昱豪Sam Chen_Sales Department "<sam@cltcl.com>
Subject: RE: Signed Invoice
Attachment: Signed Invoice.rar (contains "Signed Invoice.exe")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.27686.AidExe.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.PSW.Agent.BORA.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
Win32.Trojan.Injector
Create hunting rule
Status:
Malicious
First seen:
2020-05-26 07:17:28 UTC
File Type:
PE (Exe)
Extracted files:
11
AV detection:
25 of 31 (80.65%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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8b9172b2c33f94978f53d0197c809c937264197976d1c9f5fb027fd29280250b
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9ac8d9211067d6a7481de6c319a8b1539e60d6b63b4cf8588167fea878b5bbf7
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AgentTesla
+ 11'025 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/201109-4tjdn9vrwj/
Behaviour
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
Modifies service
Suspicious use of SetThreadContext
Adds Run key to start application
Drops startup file
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Disables Task Manager via registry modification
Drops file in Drivers directory
AgentTesla Payload
ServiceHost packer
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

rar 6a52406777a2ee5ee6d92bbf6cf41c5242a0f20e0fb364dfffd5a8c834d39033

AgentTesla

Executable exe 764c22b1c44a21388bbcbb0b4ccae5b3a0214f1742bd786eaa991b9abf9deaf8

(this sample)

  
Dropped by
MD5 38042731e02831a7bcc32e7dffb4a1ab
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 6a52406777a2ee5ee6d92bbf6cf41c5242a0f20e0fb364dfffd5a8c834d39033

Comments