Analysis

  • max time kernel
    61s
  • max time network
    113s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    14-12-2020 15:17

General

  • Target

    7f56eb82c6d2061b910683cff2ef50c2.exe

  • Size

    6.7MB

  • MD5

    7f56eb82c6d2061b910683cff2ef50c2

  • SHA1

    c19167b43d1080d2cfc238bd6af660f25bbf0c6c

  • SHA256

    e58b0951c47fa2bf4ca7e3dc9c2d60f68e00d3b7b2441b074688f1e895252327

  • SHA512

    951824402485a747bc8203ad6ef36809fe9292b10ea808a6efc435eb7bdab9ceaf1c040597496852e63651aea4acbd802e810689961ac58163b0ae40aab78f3f

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 1430 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer start page 1 TTPs 3 IoCs
  • Modifies system certificate store 2 TTPs 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7f56eb82c6d2061b910683cff2ef50c2.exe
    "C:\Users\Admin\AppData\Local\Temp\7f56eb82c6d2061b910683cff2ef50c2.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:4052
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 4052 -s 560
      2⤵
      • Program crash
      PID:2724

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/4052-2-0x0000000000400000-0x00000000010B6000-memory.dmp
    Filesize

    12.7MB

  • memory/4052-3-0x0000000000400000-0x00000000010B6000-memory.dmp
    Filesize

    12.7MB

  • memory/4052-6-0x0000000000180000-0x00000000001C0000-memory.dmp
    Filesize

    256KB

  • memory/4052-7-0x00000000001C0000-0x00000000001E2000-memory.dmp
    Filesize

    136KB

  • memory/4052-8-0x00000000001F0000-0x0000000000200000-memory.dmp
    Filesize

    64KB