Resubmissions

24-07-2023 06:32

230724-haylwaag65 10

16-07-2023 18:15

230716-wwbacshb7z 10

Analysis

  • max time kernel
    117s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-07-2023 06:32

General

  • Target

    20d1c1183762918f8077963504cb6971ff65352a34197d534a4d40fe68e0c97d.exe

  • Size

    872KB

  • MD5

    cb55913897674cdaf13edb11d97d2425

  • SHA1

    780496e20b9b74ac0e17caa982ec7a73410fe54e

  • SHA256

    20d1c1183762918f8077963504cb6971ff65352a34197d534a4d40fe68e0c97d

  • SHA512

    aa230dc3134e5b7e7bd4b275cb6ad6f71ff3ab16161b8ddfcaa45c28e37914228580dd6dc30415801d18fd19f1e7a96b7f8723f0d216e352c1385537e3b26003

  • SSDEEP

    12288:cTWVcMpDPv1q9I6/kldSCGDyaod+ik4g8y3SoDSXL8d8TZnIZZpYb/WTzVP/ZlBJ:cIrbvOPW2rEloDe/IZie9nZl+

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.corroshield.co.id
  • Port:
    587
  • Username:
    accounting@corroshield.co.id
  • Password:
    sulastri2011

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\20d1c1183762918f8077963504cb6971ff65352a34197d534a4d40fe68e0c97d.exe
    "C:\Users\Admin\AppData\Local\Temp\20d1c1183762918f8077963504cb6971ff65352a34197d534a4d40fe68e0c97d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4620
    • C:\Users\Admin\AppData\Local\Temp\20d1c1183762918f8077963504cb6971ff65352a34197d534a4d40fe68e0c97d.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2496

Network

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\20d1c1183762918f8077963504cb6971ff65352a34197d534a4d40fe68e0c97d.exe.log
    Filesize

    507B

    MD5

    ab4c71d3ff6255edd4e5c1e09540f49e

    SHA1

    22e06bf4e258741b5df918061871cba998c50cea

    SHA256

    1690fec628f775dd3c3385b800eed126b37978ef2ffd592b024052724caafb5a

    SHA512

    8fa7d0045796e6cda7c28e2b9a690ef550619828c1b5d0ebf8e8367aff4bf4d9f63121e5b4f199d30cb8006eb584c6767f4c59150749b8256dab9dd0ebd9f1af

  • memory/2496-146-0x0000000074DB0000-0x0000000075560000-memory.dmp
    Filesize

    7MB

  • memory/2496-147-0x0000000005170000-0x0000000005180000-memory.dmp
    Filesize

    64KB

  • memory/2496-144-0x0000000074DB0000-0x0000000075560000-memory.dmp
    Filesize

    7MB

  • memory/2496-145-0x0000000005170000-0x0000000005180000-memory.dmp
    Filesize

    64KB

  • memory/2496-151-0x0000000006890000-0x000000000689A000-memory.dmp
    Filesize

    40KB

  • memory/2496-150-0x0000000005170000-0x0000000005180000-memory.dmp
    Filesize

    64KB

  • memory/2496-140-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2496-149-0x00000000064B0000-0x0000000006500000-memory.dmp
    Filesize

    320KB

  • memory/2496-152-0x0000000005170000-0x0000000005180000-memory.dmp
    Filesize

    64KB

  • memory/2496-148-0x0000000005F30000-0x0000000005F96000-memory.dmp
    Filesize

    408KB

  • memory/4620-139-0x00000000085E0000-0x0000000008B84000-memory.dmp
    Filesize

    5MB

  • memory/4620-133-0x0000000000A40000-0x0000000000B20000-memory.dmp
    Filesize

    896KB

  • memory/4620-137-0x0000000074DB0000-0x0000000075560000-memory.dmp
    Filesize

    7MB

  • memory/4620-136-0x0000000007940000-0x00000000079D2000-memory.dmp
    Filesize

    584KB

  • memory/4620-134-0x0000000074DB0000-0x0000000075560000-memory.dmp
    Filesize

    7MB

  • memory/4620-135-0x00000000078A0000-0x000000000793C000-memory.dmp
    Filesize

    624KB

  • memory/4620-138-0x0000000007A40000-0x0000000007A50000-memory.dmp
    Filesize

    64KB

  • memory/4620-143-0x0000000074DB0000-0x0000000075560000-memory.dmp
    Filesize

    7MB