Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28-04-2024 01:18

General

  • Target

    b64fd7e8967cda865697ba24afaf86ea774f813ddea418980fca84e808451902.exe

  • Size

    244KB

  • MD5

    2305755f146381f9450127182148c48b

  • SHA1

    a25f4a4e819d936ddaa43231750e2e8149e8a9ef

  • SHA256

    b64fd7e8967cda865697ba24afaf86ea774f813ddea418980fca84e808451902

  • SHA512

    52ab92b2f7fa093af325e704c94acdfcab257e54e49e5686e14712ce5b68cdca51a65205321c99c82988e36cf0e6b24f1b92d9979dfd71e184c12c0da0476495

  • SSDEEP

    1536:+Y4obH+RCepMwM4Mnk04v1SP2uqLNzj71prKzU64sYY8OdA274m5VYQWlUDkBO9k:b4QUMwM4M++3aP64h274m5SHUDkBO4H

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    erkin.permanov@seda-medical.com
  • Password:
    ablegod1122

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    erkin.permanov@seda-medical.com
  • Password:
    ablegod1122
  • Email To:
    erkin.permanov@seda-medical.com

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b64fd7e8967cda865697ba24afaf86ea774f813ddea418980fca84e808451902.exe
    "C:\Users\Admin\AppData\Local\Temp\b64fd7e8967cda865697ba24afaf86ea774f813ddea418980fca84e808451902.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:2676

Network

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Collection

Data from Local System

4
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\Local\Temp\Tar5049.tmp
    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • memory/2676-0-0x0000000000F00000-0x0000000000F44000-memory.dmp
    Filesize

    272KB

  • memory/2676-1-0x0000000074980000-0x000000007506E000-memory.dmp
    Filesize

    6.9MB

  • memory/2676-2-0x0000000004980000-0x00000000049C0000-memory.dmp
    Filesize

    256KB

  • memory/2676-40-0x0000000074980000-0x000000007506E000-memory.dmp
    Filesize

    6.9MB