Analysis

  • max time kernel
    72s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    18-04-2022 08:49

General

  • Target

    f17be56f3ffcbff5456246f92dbfcbc6251aaae4890580260a877f4ef98ae85f.exe

  • Size

    350KB

  • MD5

    1a349cd091b56f028fd227b08430caa4

  • SHA1

    80086e37b32214c0d7449174bf9f9aa9b671acf4

  • SHA256

    f17be56f3ffcbff5456246f92dbfcbc6251aaae4890580260a877f4ef98ae85f

  • SHA512

    8618a45645c52e5a628a262e880d04ab59f84e34462c6a9eff25dac89572d8e4fdd0642070398693f1f90ad640a1a19560e3821f03a0ccfb324410703cf187b8

Score
10/10

Malware Config

Signatures

  • OnlyLogger

    A tiny loader that uses IPLogger to get its payload.

  • OnlyLogger Payload 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 10 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f17be56f3ffcbff5456246f92dbfcbc6251aaae4890580260a877f4ef98ae85f.exe
    "C:\Users\Admin\AppData\Local\Temp\f17be56f3ffcbff5456246f92dbfcbc6251aaae4890580260a877f4ef98ae85f.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1320
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1320 -s 624
      2⤵
      • Program crash
      PID:3392
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1320 -s 660
      2⤵
      • Program crash
      PID:4812
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1320 -s 716
      2⤵
      • Program crash
      PID:1656
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1320 -s 724
      2⤵
      • Program crash
      PID:4512
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1320 -s 840
      2⤵
      • Program crash
      PID:4928
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1320 -s 1068
      2⤵
      • Program crash
      PID:2396
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1320 -s 1244
      2⤵
      • Program crash
      PID:5036
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "f17be56f3ffcbff5456246f92dbfcbc6251aaae4890580260a877f4ef98ae85f.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\f17be56f3ffcbff5456246f92dbfcbc6251aaae4890580260a877f4ef98ae85f.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1352
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "f17be56f3ffcbff5456246f92dbfcbc6251aaae4890580260a877f4ef98ae85f.exe" /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1324
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1320 -s 1080
      2⤵
      • Program crash
      PID:1760
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1320 -s 1096
      2⤵
      • Program crash
      PID:4284
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1320 -s 1388
      2⤵
      • Program crash
      PID:3836
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 1320 -ip 1320
    1⤵
      PID:2004
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 1320 -ip 1320
      1⤵
        PID:2272
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1320 -ip 1320
        1⤵
          PID:3440
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 1320 -ip 1320
          1⤵
            PID:516
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1320 -ip 1320
            1⤵
              PID:4912
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1320 -ip 1320
              1⤵
                PID:2064
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1320 -ip 1320
                1⤵
                  PID:3200
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1320 -ip 1320
                  1⤵
                    PID:2140
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 1320 -ip 1320
                    1⤵
                      PID:888
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1320 -ip 1320
                      1⤵
                        PID:4632

                      Network

                      MITRE ATT&CK Enterprise v6

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • memory/1320-130-0x0000000000FDE000-0x0000000001006000-memory.dmp

                        Filesize

                        160KB

                      • memory/1320-131-0x0000000000FDE000-0x0000000001006000-memory.dmp

                        Filesize

                        160KB

                      • memory/1320-132-0x0000000002970000-0x00000000029B6000-memory.dmp

                        Filesize

                        280KB

                      • memory/1320-133-0x0000000000400000-0x0000000000C31000-memory.dmp

                        Filesize

                        8.2MB