Analysis

  • max time kernel
    132s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    29/08/2023, 21:43

General

  • Target

    edcbe8810eb057bfcf59f6cf768e4716981fb64d568d954ddab3d5880852258d.exe

  • Size

    804KB

  • MD5

    092058fb3ae4ff4eaf7bc0408ffad389

  • SHA1

    506963490d673affe91a75b97f71fa4b4532dbec

  • SHA256

    edcbe8810eb057bfcf59f6cf768e4716981fb64d568d954ddab3d5880852258d

  • SHA512

    60b98d99204d8c3191e68c12b6fe654a7821f80b0032c6c5d2a96ecf0df58fdcafea0388154698608e27f3ffbfbcb3b188c6b39c5437ae7b69d2cbe1caaa4d6d

  • SSDEEP

    24576:CL3j4OXv+NBJcEYrHxaZIpOyGMUds1ubjr:CL3jjf9EY7sOsyGM11ufr

Malware Config

Signatures

  • Blackmoon, KrBanker

    Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

  • Detect Blackmoon payload 5 IoCs
  • Gh0st RAT payload 1 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates physical storage devices 1 TTPs

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

  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 41 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\edcbe8810eb057bfcf59f6cf768e4716981fb64d568d954ddab3d5880852258d.exe
    "C:\Users\Admin\AppData\Local\Temp\edcbe8810eb057bfcf59f6cf768e4716981fb64d568d954ddab3d5880852258d.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\edcbe8810eb057bfcf59f6cf768e4716981fb64d568d954ddab3d5880852258d.txt
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:2936

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\edcbe8810eb057bfcf59f6cf768e4716981fb64d568d954ddab3d5880852258d.txt

    Filesize

    120KB

    MD5

    3aea5b78bac5359a799c2714fecccd1a

    SHA1

    5d3203b328ecfc7a55c0ded1032d209e9f273367

    SHA256

    c05e763cab67cf9daf5be7a6a6cff2650223987a9693eaa119f69b2bbb6df6c3

    SHA512

    9513cc84a7ed3dd709d4affb03f6e286dcd43e82f33441c00a9d74d2b45449f2ee20baa8db46218d7a59d9e62fb7f95050ea305166e70f3e71dde39ccf07b6d3

  • C:\Users\Public\Documents\sjsw.log

    Filesize

    255B

    MD5

    97bfaca991c70267f3d8f1f98c7c1afd

    SHA1

    2e632e4f147833da534a15a2f07a77e18cd5e39b

    SHA256

    4c5a902068ed2e2c1ae9075159560ed7f6ef78e3a593209e59497c520ec10486

    SHA512

    1d0e513de7feb5b655b11ff950637de3632f070ad209a8d4390a9e60731c2ebf36e9551d8d2c90ecf8237320622454c83b2e5654d780b9e83957a0c12b9541a5

  • \Users\Public\Documents\1.dll

    Filesize

    2KB

    MD5

    7943effe67a4647e06def2348949020e

    SHA1

    eabd561f0639a975de259633f63896d82c3f878d

    SHA256

    3fac47db92d581b2daef7a4f9493be2fe441041e5158101d80873d05808d5cfa

    SHA512

    c9db1962e7457c94426c2a5c7f439736697d4399db6982c45357459d58805daa4a9d297912135488b6990e265ffa59d687fd5ba43717aab46ccc212083ef5003

  • memory/2032-31-0x00000000034C0000-0x00000000035B3000-memory.dmp

    Filesize

    972KB

  • memory/2032-32-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/2032-6-0x0000000001FB0000-0x0000000001FB3000-memory.dmp

    Filesize

    12KB

  • memory/2032-7-0x0000000003880000-0x00000000038E7000-memory.dmp

    Filesize

    412KB

  • memory/2032-28-0x0000000003880000-0x00000000038E7000-memory.dmp

    Filesize

    412KB

  • memory/2032-3-0x0000000003880000-0x00000000038E7000-memory.dmp

    Filesize

    412KB

  • memory/2032-29-0x00000000034C0000-0x00000000035B3000-memory.dmp

    Filesize

    972KB

  • memory/2032-4-0x0000000003880000-0x00000000038E7000-memory.dmp

    Filesize

    412KB

  • memory/2032-33-0x00000000034C0000-0x00000000035B3000-memory.dmp

    Filesize

    972KB

  • memory/2032-34-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/2032-35-0x0000000010000000-0x0000000010017000-memory.dmp

    Filesize

    92KB

  • memory/2032-38-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/2032-48-0x0000000003880000-0x00000000038E7000-memory.dmp

    Filesize

    412KB

  • memory/2032-49-0x0000000003880000-0x00000000038E7000-memory.dmp

    Filesize

    412KB

  • memory/2032-51-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB