Analysis

  • max time kernel
    101s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    08-05-2022 06:21

General

  • Target

    bc71bc7f6ce5a6d4502c997d27bf5382221dc736a59cb00c65f68cd0981ad424.exe

  • Size

    263KB

  • MD5

    8144dd88fc6b522c1e68937c820a8ad0

  • SHA1

    3551922adcacbfc72c7fe7db3f17396a6e84c6da

  • SHA256

    bc71bc7f6ce5a6d4502c997d27bf5382221dc736a59cb00c65f68cd0981ad424

  • SHA512

    bd4f910d630f9a0160262bfb929d23807737e1a1bbc2974a88edb8de6a14f05787a2cdbd40197abe223be84eede55cc348aaf9a76434e9ccd4499dfb2db00835

Score
10/10

Malware Config

Signatures

  • OnlyLogger

    A tiny loader that uses IPLogger to get its payload.

  • OnlyLogger Payload 2 IoCs
  • Deletes itself 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bc71bc7f6ce5a6d4502c997d27bf5382221dc736a59cb00c65f68cd0981ad424.exe
    "C:\Users\Admin\AppData\Local\Temp\bc71bc7f6ce5a6d4502c997d27bf5382221dc736a59cb00c65f68cd0981ad424.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:940
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "bc71bc7f6ce5a6d4502c997d27bf5382221dc736a59cb00c65f68cd0981ad424.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\bc71bc7f6ce5a6d4502c997d27bf5382221dc736a59cb00c65f68cd0981ad424.exe" & exit
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1836
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "bc71bc7f6ce5a6d4502c997d27bf5382221dc736a59cb00c65f68cd0981ad424.exe" /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1796

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/940-54-0x00000000750C1000-0x00000000750C3000-memory.dmp

    Filesize

    8KB

  • memory/940-56-0x00000000001B0000-0x00000000001F6000-memory.dmp

    Filesize

    280KB

  • memory/940-55-0x00000000002EB000-0x0000000000313000-memory.dmp

    Filesize

    160KB

  • memory/940-57-0x0000000000400000-0x00000000007FF000-memory.dmp

    Filesize

    4.0MB

  • memory/1796-59-0x0000000000000000-mapping.dmp

  • memory/1836-58-0x0000000000000000-mapping.dmp