Resubmissions

24-02-2022 11:14

220224-ncejnschd5 10

22-02-2022 08:33

220222-kfyj6sfggm 8

Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows10_x64
  • resource
    win10-20220223-en
  • submitted
    24-02-2022 11:14

General

  • Target

    8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe

  • Size

    267KB

  • MD5

    ec3a003082a19fd6a00f84df315d18a2

  • SHA1

    e7268a6982c3d17aaf472b331b67fbdbc4000dec

  • SHA256

    8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143

  • SHA512

    d3e804add5ebf3efdbf4794cbc1cc53bfc0485298771a1f43d7d683870f82561be3387d83436cf308e260bd600ce475998add0d094d63ab46f3dd75ad16f74aa

Score
10/10

Malware Config

Signatures

  • PlugX

    PlugX is a RAT (Remote Access Trojan) that has been around since 2008.

  • PlugX Rat Payload 4 IoCs
  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 7 IoCs
  • Drops file in Windows directory 40 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks SCSI registry key(s) 3 TTPs 18 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 42 IoCs
  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe
    "C:\Users\Admin\AppData\Local\Temp\8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1576
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\Mc.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Mc.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      PID:3628
  • C:\ProgramData\MC\Mc.exe
    C:\ProgramData\MC\Mc.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3592
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      2⤵
      • Deletes itself
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2540
      • C:\Windows\SysWOW64\msiexec.exe
        C:\Windows\SysWOW64\msiexec.exe
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:3820
  • C:\Windows\system32\WerFault.exe
    "C:\Windows\system32\WerFault.exe" -k -lc NDIS NDIS-20220224-1115.dmp
    1⤵
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Checks SCSI registry key(s)
    • Modifies data under HKEY_USERS
    PID:2948

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\MC\Mc.exe
    MD5

    884d46c01c762ad6ddd2759fd921bf71

    SHA1

    d201b130232e0ea411daa23c1ba2892fe6468712

    SHA256

    3124fcb79da0bdf9d0d1995e37b06f7929d83c1c4b60e38c104743be71170efe

    SHA512

    0acb3fe1050c1c07880ed2161956c4bee7c1e813a5fb518059b9bb88ed0bff50c108ad7b3708b6568413df4bdcc6f4d26dcd8759625a5ab77c4b26c1ba4f8813

  • C:\ProgramData\MC\Mc.exe
    MD5

    884d46c01c762ad6ddd2759fd921bf71

    SHA1

    d201b130232e0ea411daa23c1ba2892fe6468712

    SHA256

    3124fcb79da0bdf9d0d1995e37b06f7929d83c1c4b60e38c104743be71170efe

    SHA512

    0acb3fe1050c1c07880ed2161956c4bee7c1e813a5fb518059b9bb88ed0bff50c108ad7b3708b6568413df4bdcc6f4d26dcd8759625a5ab77c4b26c1ba4f8813

  • C:\ProgramData\MC\McUtil.dll
    MD5

    ffa5f4b6b580d53bc311d6e5bace3110

    SHA1

    d599ca575b995d8de971aed8a64762225bde386d

    SHA256

    9857e40be1fb5b9b6db93dc03f96f6b3ff0ffab85af7944dddcac0e37775ab02

    SHA512

    20ac2b2508e931d545e952d29afa5ee8ce6600934e56ff8aee169ee2e1cb7c0d7eb1396c947edb45c31a434bd17ceada0cdfd5ea0c11ce7cc7298cbac4c9ca90

  • C:\ProgramData\MC\McUtil.dll.url
    MD5

    e8f20ec41ae7091198579a1b731f6da2

    SHA1

    ac524110bcf5148db5f0d0b7f0ff42f3470209b4

    SHA256

    27b9495c45248c3702d355323d8e70731f87c4889abebc6967265c83527e40e7

    SHA512

    7686e53076993926ed7f012d5cde0848d6b5119ef1a5f6760e382f72c2ff3205a5d2fc6846778ee4e560bd01c8b2eedb46ab5efed8152aa588891dfa8b761bd8

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\Mc.exe
    MD5

    884d46c01c762ad6ddd2759fd921bf71

    SHA1

    d201b130232e0ea411daa23c1ba2892fe6468712

    SHA256

    3124fcb79da0bdf9d0d1995e37b06f7929d83c1c4b60e38c104743be71170efe

    SHA512

    0acb3fe1050c1c07880ed2161956c4bee7c1e813a5fb518059b9bb88ed0bff50c108ad7b3708b6568413df4bdcc6f4d26dcd8759625a5ab77c4b26c1ba4f8813

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\Mc.exe
    MD5

    884d46c01c762ad6ddd2759fd921bf71

    SHA1

    d201b130232e0ea411daa23c1ba2892fe6468712

    SHA256

    3124fcb79da0bdf9d0d1995e37b06f7929d83c1c4b60e38c104743be71170efe

    SHA512

    0acb3fe1050c1c07880ed2161956c4bee7c1e813a5fb518059b9bb88ed0bff50c108ad7b3708b6568413df4bdcc6f4d26dcd8759625a5ab77c4b26c1ba4f8813

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\McUtil.dll
    MD5

    ffa5f4b6b580d53bc311d6e5bace3110

    SHA1

    d599ca575b995d8de971aed8a64762225bde386d

    SHA256

    9857e40be1fb5b9b6db93dc03f96f6b3ff0ffab85af7944dddcac0e37775ab02

    SHA512

    20ac2b2508e931d545e952d29afa5ee8ce6600934e56ff8aee169ee2e1cb7c0d7eb1396c947edb45c31a434bd17ceada0cdfd5ea0c11ce7cc7298cbac4c9ca90

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\McUtil.dll.url
    MD5

    e8f20ec41ae7091198579a1b731f6da2

    SHA1

    ac524110bcf5148db5f0d0b7f0ff42f3470209b4

    SHA256

    27b9495c45248c3702d355323d8e70731f87c4889abebc6967265c83527e40e7

    SHA512

    7686e53076993926ed7f012d5cde0848d6b5119ef1a5f6760e382f72c2ff3205a5d2fc6846778ee4e560bd01c8b2eedb46ab5efed8152aa588891dfa8b761bd8

  • \ProgramData\MC\McUtil.dll
    MD5

    ffa5f4b6b580d53bc311d6e5bace3110

    SHA1

    d599ca575b995d8de971aed8a64762225bde386d

    SHA256

    9857e40be1fb5b9b6db93dc03f96f6b3ff0ffab85af7944dddcac0e37775ab02

    SHA512

    20ac2b2508e931d545e952d29afa5ee8ce6600934e56ff8aee169ee2e1cb7c0d7eb1396c947edb45c31a434bd17ceada0cdfd5ea0c11ce7cc7298cbac4c9ca90

  • \Users\Admin\AppData\Local\Temp\RarSFX0\McUtil.dll
    MD5

    ffa5f4b6b580d53bc311d6e5bace3110

    SHA1

    d599ca575b995d8de971aed8a64762225bde386d

    SHA256

    9857e40be1fb5b9b6db93dc03f96f6b3ff0ffab85af7944dddcac0e37775ab02

    SHA512

    20ac2b2508e931d545e952d29afa5ee8ce6600934e56ff8aee169ee2e1cb7c0d7eb1396c947edb45c31a434bd17ceada0cdfd5ea0c11ce7cc7298cbac4c9ca90

  • memory/2540-127-0x0000000002770000-0x0000000002771000-memory.dmp
    Filesize

    4KB

  • memory/2540-128-0x0000000002BD0000-0x0000000002BF5000-memory.dmp
    Filesize

    148KB

  • memory/3592-124-0x0000000000E00000-0x0000000000F00000-memory.dmp
    Filesize

    1024KB

  • memory/3592-125-0x0000000000590000-0x00000000005B7000-memory.dmp
    Filesize

    156KB

  • memory/3628-126-0x0000000000660000-0x0000000000687000-memory.dmp
    Filesize

    156KB

  • memory/3820-131-0x0000000002AA0000-0x0000000002AA1000-memory.dmp
    Filesize

    4KB

  • memory/3820-132-0x0000000002DD0000-0x0000000002DF5000-memory.dmp
    Filesize

    148KB