Analysis

  • max time kernel
    56s
  • max time network
    87s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    02-05-2022 11:43

General

  • Target

    fb657035d6a3fcee85cb88e47418bda8c453ac623aad138fc2aea94a258e6607.exe

  • Size

    390KB

  • MD5

    2777f662fe6d094fb8726aae2a6b39a6

  • SHA1

    a643a95a7f45a612f45c4d398630b8b641b49bb7

  • SHA256

    fb657035d6a3fcee85cb88e47418bda8c453ac623aad138fc2aea94a258e6607

  • SHA512

    d2974a64b8a780f099f5bc67d03a7d90a8824f01b12be7f3c1803c7b68772c2b1622b3864578d2fa4e636a1154ff22f1a1f821a2330bca5daa99591e962ab23e

Score
10/10

Malware Config

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 4 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fb657035d6a3fcee85cb88e47418bda8c453ac623aad138fc2aea94a258e6607.exe
    "C:\Users\Admin\AppData\Local\Temp\fb657035d6a3fcee85cb88e47418bda8c453ac623aad138fc2aea94a258e6607.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4612
    • C:\Users\Admin\AppData\Local\Temp\Microsoft Network Realtime Inspection Service.EXE
      "C:\Users\Admin\AppData\Local\Temp\Microsoft Network Realtime Inspection Service.EXE"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Drops startup file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1652
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 1 /tn "penis" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup/Microsoft Network Realtime Inspection Service.EXE"
        3⤵
        • Creates scheduled task(s)
        PID:516
    • C:\Users\Admin\AppData\Local\Temp\Microsoft Windows Search Protocol Host.EXE
      "C:\Users\Admin\AppData\Local\Temp\Microsoft Windows Search Protocol Host.EXE"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Drops startup file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2184
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 1 /tn "penis" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup/Microsoft Windows Search Protocol Host.EXE"
        3⤵
        • Creates scheduled task(s)
        PID:5020
  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Windows Search Protocol Host.EXE
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup/Microsoft Windows Search Protocol Host.EXE"
    1⤵
    • Executes dropped EXE
    • Checks computer location settings
    • Drops startup file
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4884
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 1 /tn "penis" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup/Microsoft Windows Search Protocol Host.EXE"
      2⤵
      • Creates scheduled task(s)
      PID:2492

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Microsoft Network Realtime Inspection Service.EXE
    Filesize

    116KB

    MD5

    0b0822d827fa93d7f24853236b179d2a

    SHA1

    caabce7347a0f3671e7fc8445e72e9f4c6c69d09

    SHA256

    22f55646c51222195bb4f082bf75dd53526e49dbb25413e20809e8190f35b231

    SHA512

    0b74b3c46a1ae982282a22f1974f52f5d615f2650a294d2662fe05cf9ff8949f7f422426772517b1b51e14a347e46dba3d4d8581f03e6cf043c29efe0f0561e7

  • C:\Users\Admin\AppData\Local\Temp\Microsoft Network Realtime Inspection Service.exe
    Filesize

    116KB

    MD5

    0b0822d827fa93d7f24853236b179d2a

    SHA1

    caabce7347a0f3671e7fc8445e72e9f4c6c69d09

    SHA256

    22f55646c51222195bb4f082bf75dd53526e49dbb25413e20809e8190f35b231

    SHA512

    0b74b3c46a1ae982282a22f1974f52f5d615f2650a294d2662fe05cf9ff8949f7f422426772517b1b51e14a347e46dba3d4d8581f03e6cf043c29efe0f0561e7

  • C:\Users\Admin\AppData\Local\Temp\Microsoft Windows Search Protocol Host.EXE
    Filesize

    74KB

    MD5

    93d98128d44836c7b02c072ad97909b5

    SHA1

    2ff18c31d28022b6f4bab69e82a130c03fbdc32c

    SHA256

    3b72fd533bb38633959f0ca2f60774a60b302b3d3455709608b087e30307b773

    SHA512

    963fa94059e9937195225574d7917937a2313705b7dd9625e9f1045379ba65e0525d27a8835073e608782db16d0c99072513e13978e9c943922fee3298dae0ca

  • C:\Users\Admin\AppData\Local\Temp\Microsoft Windows Search Protocol Host.exe
    Filesize

    74KB

    MD5

    93d98128d44836c7b02c072ad97909b5

    SHA1

    2ff18c31d28022b6f4bab69e82a130c03fbdc32c

    SHA256

    3b72fd533bb38633959f0ca2f60774a60b302b3d3455709608b087e30307b773

    SHA512

    963fa94059e9937195225574d7917937a2313705b7dd9625e9f1045379ba65e0525d27a8835073e608782db16d0c99072513e13978e9c943922fee3298dae0ca

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Windows Search Protocol Host.EXE
    Filesize

    74KB

    MD5

    93d98128d44836c7b02c072ad97909b5

    SHA1

    2ff18c31d28022b6f4bab69e82a130c03fbdc32c

    SHA256

    3b72fd533bb38633959f0ca2f60774a60b302b3d3455709608b087e30307b773

    SHA512

    963fa94059e9937195225574d7917937a2313705b7dd9625e9f1045379ba65e0525d27a8835073e608782db16d0c99072513e13978e9c943922fee3298dae0ca

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Windows Search Protocol Host.EXE
    Filesize

    74KB

    MD5

    93d98128d44836c7b02c072ad97909b5

    SHA1

    2ff18c31d28022b6f4bab69e82a130c03fbdc32c

    SHA256

    3b72fd533bb38633959f0ca2f60774a60b302b3d3455709608b087e30307b773

    SHA512

    963fa94059e9937195225574d7917937a2313705b7dd9625e9f1045379ba65e0525d27a8835073e608782db16d0c99072513e13978e9c943922fee3298dae0ca

  • memory/516-144-0x0000000000000000-mapping.dmp
  • memory/1652-141-0x00000000053D0000-0x0000000005974000-memory.dmp
    Filesize

    5.6MB

  • memory/1652-142-0x0000000004EC0000-0x0000000004F52000-memory.dmp
    Filesize

    584KB

  • memory/1652-133-0x0000000000000000-mapping.dmp
  • memory/2184-136-0x0000000000000000-mapping.dmp
  • memory/2184-139-0x00000000004D0000-0x00000000004E4000-memory.dmp
    Filesize

    80KB

  • memory/2184-140-0x0000000004D70000-0x0000000004E0C000-memory.dmp
    Filesize

    624KB

  • memory/2184-147-0x0000000002779000-0x000000000277F000-memory.dmp
    Filesize

    24KB

  • memory/2492-148-0x0000000000000000-mapping.dmp
  • memory/5020-143-0x0000000000000000-mapping.dmp