Analysis

  • max time kernel
    131s
  • max time network
    132s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    14-12-2020 15:01

General

  • Target

    6bcb35c8433b3b08972d4b1d5295077a.exe

  • Size

    6.2MB

  • MD5

    6bcb35c8433b3b08972d4b1d5295077a

  • SHA1

    1d0be988c12137c5bb6d5636ff70e59a6562a065

  • SHA256

    c64c33cdf6693fa885ec1fe8e26a335e10763d6310153da268b904b5d2f922e8

  • SHA512

    56e93750205bdb00e093db0cfdc074c9dbe70ea034cd4b89083b2b1ed5e79aee2f12755d7c081a9eb1996ffd8e326bc97913c95a2e80cf052e2cd7deb3e5c904

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 99 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 838 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer start page 1 TTPs 4 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6bcb35c8433b3b08972d4b1d5295077a.exe
    "C:\Users\Admin\AppData\Local\Temp\6bcb35c8433b3b08972d4b1d5295077a.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:1404
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1404 -s 1628
      2⤵
      • Program crash
      PID:2120

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/1404-2-0x0000000000400000-0x00000000010B6000-memory.dmp
    Filesize

    12.7MB

  • memory/1404-3-0x0000000000400000-0x00000000010B6000-memory.dmp
    Filesize

    12.7MB

  • memory/1404-6-0x00000000000B0000-0x00000000000F0000-memory.dmp
    Filesize

    256KB

  • memory/1404-7-0x00000000000F0000-0x0000000000100000-memory.dmp
    Filesize

    64KB

  • memory/1404-8-0x0000000000100000-0x0000000000102000-memory.dmp
    Filesize

    8KB

  • memory/1404-9-0x00000000001DB000-0x00000000001DC000-memory.dmp
    Filesize

    4KB