Analysis

  • max time kernel
    41s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 13:03

General

  • Target

    REVERSE_.exe

  • Size

    507KB

  • MD5

    b378a8a59c97e5db6fc1c6faf37c90de

  • SHA1

    1ba14ba7adab7d5903f0dd6c9e8ef9a9d40115e7

  • SHA256

    ab85c8e3305016e7806bf71583c6100e8249054dbb2701b9944a190ae15a7284

  • SHA512

    d31d6c7d52fe576ae7f5d3276fabcf56ae1d0b30786df1b795e7b03ccb4b0e607fcd95e9e7229f5017dd059803c5c2415243091109163cca424dcfeb10197a4d

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\REVERSE_.exe
    "C:\Users\Admin\AppData\Local\Temp\REVERSE_.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1444
    • C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\system32\rundll32.exe Pentagon,Maia
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:240
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 240 -s 228
        3⤵
        • Program crash
        PID:1616

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Helenium
    Filesize

    250KB

    MD5

    e0671641d426de50ad7c213f6e20a62e

    SHA1

    14bc1c6609a404952f3a18db64f658d24b44a0a7

    SHA256

    c7400e7ce60118d11dd93c40c1d8804998a174caa9f71bb73ccaa11174e117cf

    SHA512

    fa8dbc736af60464f367645c125d750195bf11554f91253ad0b3cd61af96291f68b14c54a94c64bd8cde1de42aeee24792f1c18460fe85ff9c261a958c13060a

  • C:\Users\Admin\AppData\Local\Temp\Pentagon.DLL
    Filesize

    56KB

    MD5

    84efccfc8c97ebda74559a289f41c769

    SHA1

    5325f8b9e8a20a0ac8911f48b6f744c69665650a

    SHA256

    0515fa8a1ed1d74e440cb372c981b8e3b703fe5c1593e26deaba5a47704cebc8

    SHA512

    8c0845739ee37d658c91899f947604cbd69c126e9e0cfc6af275a007ef99802cf86e4af4af180b4a14a786aec9645144f737dafb87543c7d3faa13544888e66b

  • \Users\Admin\AppData\Local\Temp\Pentagon.dll
    Filesize

    56KB

    MD5

    84efccfc8c97ebda74559a289f41c769

    SHA1

    5325f8b9e8a20a0ac8911f48b6f744c69665650a

    SHA256

    0515fa8a1ed1d74e440cb372c981b8e3b703fe5c1593e26deaba5a47704cebc8

    SHA512

    8c0845739ee37d658c91899f947604cbd69c126e9e0cfc6af275a007ef99802cf86e4af4af180b4a14a786aec9645144f737dafb87543c7d3faa13544888e66b

  • memory/240-55-0x0000000000000000-mapping.dmp
  • memory/240-61-0x00000000000B0000-0x00000000000B3000-memory.dmp
    Filesize

    12KB

  • memory/1444-54-0x0000000075B71000-0x0000000075B73000-memory.dmp
    Filesize

    8KB

  • memory/1616-60-0x0000000000000000-mapping.dmp