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Analysis

  • max time kernel
    146s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/10/2023, 17:41

General

  • Target

    6a053f5c71b94d17a8603accc98bdeeb5b82008c6b5794a12be2ccd6f1f143a5_JC.exe

  • Size

    527KB

  • MD5

    4612e5911cb175c3d938302ffc210f3b

  • SHA1

    c5e0f0351c7e4582f7912dcc1427892517896815

  • SHA256

    6a053f5c71b94d17a8603accc98bdeeb5b82008c6b5794a12be2ccd6f1f143a5

  • SHA512

    e49de9717e96cc9e4fafbba60a11ef8b5ba1f9d3d9177400f9aa3ca876063231f088cb824920cef62cb7fde09a37096e67e743981a3e916807a4df108631b235

  • SSDEEP

    12288:GhOFSjc+NCAuPe0y/jGofSiC+qtDWjLlHCsM:jURMAfrChtDW3lHE

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    premium89.web-hosting.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    blessing@@ 123 45

Signatures

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6a053f5c71b94d17a8603accc98bdeeb5b82008c6b5794a12be2ccd6f1f143a5_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\6a053f5c71b94d17a8603accc98bdeeb5b82008c6b5794a12be2ccd6f1f143a5_JC.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3100
    • C:\Users\Admin\AppData\Local\Temp\6a053f5c71b94d17a8603accc98bdeeb5b82008c6b5794a12be2ccd6f1f143a5_JC.exe
      C:\Users\Admin\AppData\Local\Temp\6a053f5c71b94d17a8603accc98bdeeb5b82008c6b5794a12be2ccd6f1f143a5_JC.exe
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1564

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\6a053f5c71b94d17a8603accc98bdeeb5b82008c6b5794a12be2ccd6f1f143a5_JC.exe.log

    Filesize

    1KB

    MD5

    489c7565f9b029ba9fadff774073cc98

    SHA1

    56c05089b33ee7e7dfa9e6a2d098164efd8e1150

    SHA256

    10bf6242da02dad8b2e1208b9dab9a7303cf986320e05e5ef20b99c9b71326d4

    SHA512

    ddea09c011a8d4f85905842c2f34c98add0110a0b6b3b2709718c3614a2c42dec5f4f5d5b9442cfd3c6c23e9a90c8c0b25c14c3dbd42faea9cc8dd232cace1ac

  • memory/1564-17-0x0000000006840000-0x00000000068DC000-memory.dmp

    Filesize

    624KB

  • memory/1564-15-0x0000000005130000-0x0000000005196000-memory.dmp

    Filesize

    408KB

  • memory/1564-21-0x0000000005020000-0x0000000005030000-memory.dmp

    Filesize

    64KB

  • memory/1564-13-0x0000000075220000-0x00000000759D0000-memory.dmp

    Filesize

    7.7MB

  • memory/1564-20-0x0000000075220000-0x00000000759D0000-memory.dmp

    Filesize

    7.7MB

  • memory/1564-19-0x0000000006920000-0x000000000692A000-memory.dmp

    Filesize

    40KB

  • memory/1564-18-0x0000000006980000-0x0000000006A12000-memory.dmp

    Filesize

    584KB

  • memory/1564-9-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1564-16-0x0000000006750000-0x00000000067A0000-memory.dmp

    Filesize

    320KB

  • memory/1564-14-0x0000000005020000-0x0000000005030000-memory.dmp

    Filesize

    64KB

  • memory/3100-6-0x0000000006EB0000-0x0000000006EFC000-memory.dmp

    Filesize

    304KB

  • memory/3100-4-0x0000000006360000-0x00000000063B2000-memory.dmp

    Filesize

    328KB

  • memory/3100-12-0x0000000075220000-0x00000000759D0000-memory.dmp

    Filesize

    7.7MB

  • memory/3100-2-0x0000000005B80000-0x0000000005B90000-memory.dmp

    Filesize

    64KB

  • memory/3100-1-0x0000000075220000-0x00000000759D0000-memory.dmp

    Filesize

    7.7MB

  • memory/3100-7-0x0000000007600000-0x0000000007BA4000-memory.dmp

    Filesize

    5.6MB

  • memory/3100-0-0x0000000000FC0000-0x000000000104A000-memory.dmp

    Filesize

    552KB

  • memory/3100-5-0x0000000006E00000-0x0000000006E40000-memory.dmp

    Filesize

    256KB

  • memory/3100-3-0x0000000003450000-0x000000000345E000-memory.dmp

    Filesize

    56KB