Analysis

  • max time kernel
    59s
  • max time network
    110s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    14-12-2020 12:29

General

  • Target

    a4ceac9bdc23ba5017be980636068578.exe

  • Size

    6.2MB

  • MD5

    a4ceac9bdc23ba5017be980636068578

  • SHA1

    b50a033dd78d7a7f75853a7278204f2ed84adaee

  • SHA256

    db68fc1209851ac9950c1c91271ae34afa85b738b4c7d484d02b21bcb524a948

  • SHA512

    fcaaa731f124acbf7f0357a169bacb2fc5a649f92fdd8cd48f363bf2d24ebd84b1732bfd4b48527fbe527f49266a8245f4ddf1e351db75e020d06b0fe7d9cb36

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 106 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 1308 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer start page 1 TTPs 1 IoCs
  • Modifies system certificate store 2 TTPs 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a4ceac9bdc23ba5017be980636068578.exe
    "C:\Users\Admin\AppData\Local\Temp\a4ceac9bdc23ba5017be980636068578.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:640
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 640 -s 1484
      2⤵
      • Program crash
      PID:3504

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/640-2-0x0000000000400000-0x00000000010B6000-memory.dmp
    Filesize

    12.7MB

  • memory/640-3-0x0000000000400000-0x00000000010B6000-memory.dmp
    Filesize

    12.7MB

  • memory/640-6-0x0000000000180000-0x00000000001C0000-memory.dmp
    Filesize

    256KB

  • memory/640-7-0x00000000001C0000-0x00000000001E2000-memory.dmp
    Filesize

    136KB

  • memory/640-8-0x00000000001F0000-0x0000000000200000-memory.dmp
    Filesize

    64KB