Analysis

  • max time kernel
    143s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-03-2024 15:36

General

  • Target

    df82d99dd3f8c4601a3d4bdf7c3b62b6.exe

  • Size

    675KB

  • MD5

    df82d99dd3f8c4601a3d4bdf7c3b62b6

  • SHA1

    51f2f44d23f70b45592a627ea5ad95cd781287c0

  • SHA256

    bbca8dbd55f6feaca533c226f8c0e2af7efed8ed37772bdb8a0ff4eb5008a0fb

  • SHA512

    f943a8208348caae30dfc2200927661c0f742126f3cb6615b5cf4523cabc412088d5fe2e853d6879f9048765dd4d84ece0eeabd2dc6452981cc9f20f4a4d0111

  • SSDEEP

    6144:8hDANind1enPfMdAbOo37OPpAbC4d2wxPsn0JWJXDxqxaIXk3z647dFB9ri1lei2:EG2PpAC4fqxxq8wy64Tv+1leiyOnQ

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.servconsa.pe
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    electricidad

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\df82d99dd3f8c4601a3d4bdf7c3b62b6.exe
    "C:\Users\Admin\AppData\Local\Temp\df82d99dd3f8c4601a3d4bdf7c3b62b6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2596
    • C:\Users\Admin\AppData\Local\Temp\df82d99dd3f8c4601a3d4bdf7c3b62b6.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3996

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

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

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\df82d99dd3f8c4601a3d4bdf7c3b62b6.exe.log
    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/2596-6-0x0000000005690000-0x0000000005698000-memory.dmp
    Filesize

    32KB

  • memory/2596-2-0x0000000005A60000-0x0000000006004000-memory.dmp
    Filesize

    5.6MB

  • memory/2596-3-0x0000000005550000-0x00000000055E2000-memory.dmp
    Filesize

    584KB

  • memory/2596-4-0x00000000056C0000-0x00000000056D0000-memory.dmp
    Filesize

    64KB

  • memory/2596-5-0x0000000005510000-0x000000000551A000-memory.dmp
    Filesize

    40KB

  • memory/2596-15-0x0000000074790000-0x0000000074F40000-memory.dmp
    Filesize

    7.7MB

  • memory/2596-7-0x0000000008280000-0x000000000831C000-memory.dmp
    Filesize

    624KB

  • memory/2596-8-0x0000000074790000-0x0000000074F40000-memory.dmp
    Filesize

    7.7MB

  • memory/2596-9-0x00000000056C0000-0x00000000056D0000-memory.dmp
    Filesize

    64KB

  • memory/2596-10-0x00000000087E0000-0x000000000886A000-memory.dmp
    Filesize

    552KB

  • memory/2596-11-0x000000000AE00000-0x000000000AE46000-memory.dmp
    Filesize

    280KB

  • memory/2596-0-0x0000000000A60000-0x0000000000B10000-memory.dmp
    Filesize

    704KB

  • memory/2596-1-0x0000000074790000-0x0000000074F40000-memory.dmp
    Filesize

    7.7MB

  • memory/3996-12-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/3996-16-0x0000000074790000-0x0000000074F40000-memory.dmp
    Filesize

    7.7MB

  • memory/3996-17-0x00000000059D0000-0x00000000059E0000-memory.dmp
    Filesize

    64KB

  • memory/3996-18-0x00000000059A0000-0x00000000059B8000-memory.dmp
    Filesize

    96KB

  • memory/3996-19-0x00000000065F0000-0x0000000006656000-memory.dmp
    Filesize

    408KB

  • memory/3996-21-0x0000000074790000-0x0000000074F40000-memory.dmp
    Filesize

    7.7MB

  • memory/3996-22-0x00000000059D0000-0x00000000059E0000-memory.dmp
    Filesize

    64KB

  • memory/3996-23-0x0000000006760000-0x00000000067B0000-memory.dmp
    Filesize

    320KB

  • memory/3996-24-0x00000000059D0000-0x00000000059E0000-memory.dmp
    Filesize

    64KB

  • memory/3996-25-0x00000000059D0000-0x00000000059E0000-memory.dmp
    Filesize

    64KB