Analysis

  • max time kernel
    126s
  • max time network
    130s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    14-12-2020 12:43

General

  • Target

    acfc902c90b90bd6cc8c1f3bbf393648.exe

  • Size

    6.6MB

  • MD5

    acfc902c90b90bd6cc8c1f3bbf393648

  • SHA1

    76c2e6263c9ef4d477abdda8fdc7b8d31a7c25e3

  • SHA256

    adf8d4bdcc642de48aee894ccb4a4506bd3fcc9ce5f01b1894e204e924ec6c76

  • SHA512

    921aa7ed6a1f37ede7dfe152e467694f34292d3aefdaf3805392452662bfc44660d079a9bee02a0ef762c19abb223adcf7dcbf12ef03dec353adcf38c0663419

Score
10/10

Malware Config

Signatures

  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • XMRig Miner Payload 2 IoCs
  • UPX packed file 105 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops desktop.ini file(s) 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Drops autorun.inf file 1 TTPs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Program Files directory 1450 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\acfc902c90b90bd6cc8c1f3bbf393648.exe
    "C:\Users\Admin\AppData\Local\Temp\acfc902c90b90bd6cc8c1f3bbf393648.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Modifies Internet Explorer start page
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    PID:732
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 732 -s 1632
      2⤵
      • Program crash
      PID:3524

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Replication Through Removable Media

1
T1091

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Lateral Movement

Replication Through Removable Media

1
T1091

Command and Control

Web Service

1
T1102

Replay Monitor

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Downloads

  • memory/732-2-0x0000000000400000-0x00000000010B6000-memory.dmp
    Filesize

    12.7MB

  • memory/732-3-0x0000000000400000-0x00000000010B6000-memory.dmp
    Filesize

    12.7MB

  • memory/732-6-0x0000000000180000-0x0000000000190000-memory.dmp
    Filesize

    64KB

  • memory/732-7-0x0000000000190000-0x00000000001A0000-memory.dmp
    Filesize

    64KB

  • memory/732-8-0x00000000001A0000-0x00000000001A2000-memory.dmp
    Filesize

    8KB

  • memory/732-9-0x00000000001B0000-0x00000000001F0000-memory.dmp
    Filesize

    256KB

  • memory/732-10-0x00000000001F0000-0x0000000000200000-memory.dmp
    Filesize

    64KB