Analysis

  • max time kernel
    143s
  • max time network
    160s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    20-10-2022 18:41

General

  • Target

    Draw.io _pEkOZ.exe

  • Size

    5.1MB

  • MD5

    5347d1465f1abfbe142bee26234c2d42

  • SHA1

    43aa39e7c91122fac3ceff37278f878eb60df870

  • SHA256

    3eeab0e2bbd7e74117cf4d36fa98a7d0125fc46161a1193f0b72fca297f5c8ac

  • SHA512

    afe6c2b058056813ef2f6642c5e4593c37bfc12b38f7f8990e3a923e56922a7c2647eb2e214d7da22de60648475bf59b2b3a9f4818f2861dbc37f9f8e10815bd

  • SSDEEP

    49152:nhvEwVL6q9TUDEYh8ESu07hZPKBmeSOlNUA2lEj6T6RSUvfkt9Y:1LVQYA08RSUnkt6

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies system certificate store 2 TTPs 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Draw.io _pEkOZ.exe
    "C:\Users\Admin\AppData\Local\Temp\Draw.io _pEkOZ.exe"
    1⤵
    • Modifies Internet Explorer settings
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1340
    • C:\Users\Admin\AppData\Local\Temp\draw_io-13_9_9-windows-installer_exe_710202022842531681164719\draw.io-13.9.9-windows-installer.exe
      "C:\Users\Admin\AppData\Local\Temp\draw_io-13_9_9-windows-installer_exe_710202022842531681164719\draw.io-13.9.9-windows-installer.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:760

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\draw_io-13_9_9-windows-installer_exe_710202022842531681164719\draw.io-13.9.9-windows-installer.exe

    Filesize

    70.7MB

    MD5

    6383382cf2950ec6dab0255ad3426982

    SHA1

    2df82de8fd8408f0a7b96596f01cd1021ad816bf

    SHA256

    6adbe273b47867fa881e44e17549214741039be1db9fd1f51f23fab6727ea053

    SHA512

    00b08fda74d68c62867de01059f45a246a8294e534f36b40b6b5602bf2371ebebe800aa0260625a3ae7922a8c8e3289ba683c0a5d2db581e39c591e028e192ae

  • C:\Users\Admin\AppData\Local\Temp\draw_io-13_9_9-windows-installer_exe_710202022842531681164719\draw.io-13.9.9-windows-installer.exe

    Filesize

    70.7MB

    MD5

    6383382cf2950ec6dab0255ad3426982

    SHA1

    2df82de8fd8408f0a7b96596f01cd1021ad816bf

    SHA256

    6adbe273b47867fa881e44e17549214741039be1db9fd1f51f23fab6727ea053

    SHA512

    00b08fda74d68c62867de01059f45a246a8294e534f36b40b6b5602bf2371ebebe800aa0260625a3ae7922a8c8e3289ba683c0a5d2db581e39c591e028e192ae

  • \Users\Admin\AppData\Local\Temp\nsj92FE.tmp\StdUtils.dll

    Filesize

    100KB

    MD5

    c6a6e03f77c313b267498515488c5740

    SHA1

    3d49fc2784b9450962ed6b82b46e9c3c957d7c15

    SHA256

    b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

    SHA512

    9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

  • \Users\Admin\AppData\Local\Temp\nsj92FE.tmp\System.dll

    Filesize

    12KB

    MD5

    0d7ad4f45dc6f5aa87f606d0331c6901

    SHA1

    48df0911f0484cbe2a8cdd5362140b63c41ee457

    SHA256

    3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

    SHA512

    c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

  • \Users\Admin\AppData\Local\Temp\nsj92FE.tmp\UAC.dll

    Filesize

    14KB

    MD5

    adb29e6b186daa765dc750128649b63d

    SHA1

    160cbdc4cb0ac2c142d361df138c537aa7e708c9

    SHA256

    2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

    SHA512

    b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

  • memory/760-55-0x0000000000000000-mapping.dmp

  • memory/760-57-0x0000000076041000-0x0000000076043000-memory.dmp

    Filesize

    8KB

  • memory/1340-54-0x000007FEFBB81000-0x000007FEFBB83000-memory.dmp

    Filesize

    8KB