Analysis

  • max time kernel
    150s
  • max time network
    121s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    27-01-2022 08:19

General

  • Target

    36d5257db370921850cf447f4cbda680121d96604b12a0958434c31d71fa9964.exe

  • Size

    241KB

  • MD5

    63e53cb9c5fce8cb51c409a8d2e7def4

  • SHA1

    69aa4c4da55e3d33b60e6198250c47480b9548c9

  • SHA256

    36d5257db370921850cf447f4cbda680121d96604b12a0958434c31d71fa9964

  • SHA512

    c4d0f1a0d9ac9c7e8e711b6426d706fdd8ea359ac4ac60af99a158ab2a75bfcc2d74e5611766d25a0d083cdba490497b250c6c3c2d0d38811572c0abead8a203

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://host-data-coin-11.com/

http://file-coin-host-12.com/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\36d5257db370921850cf447f4cbda680121d96604b12a0958434c31d71fa9964.exe
    "C:\Users\Admin\AppData\Local\Temp\36d5257db370921850cf447f4cbda680121d96604b12a0958434c31d71fa9964.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3800
    • C:\Users\Admin\AppData\Local\Temp\36d5257db370921850cf447f4cbda680121d96604b12a0958434c31d71fa9964.exe
      "C:\Users\Admin\AppData\Local\Temp\36d5257db370921850cf447f4cbda680121d96604b12a0958434c31d71fa9964.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:3192
  • C:\Users\Admin\AppData\Roaming\gujghtv
    C:\Users\Admin\AppData\Roaming\gujghtv
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3468
    • C:\Users\Admin\AppData\Roaming\gujghtv
      C:\Users\Admin\AppData\Roaming\gujghtv
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:1952

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\gujghtv

    MD5

    63e53cb9c5fce8cb51c409a8d2e7def4

    SHA1

    69aa4c4da55e3d33b60e6198250c47480b9548c9

    SHA256

    36d5257db370921850cf447f4cbda680121d96604b12a0958434c31d71fa9964

    SHA512

    c4d0f1a0d9ac9c7e8e711b6426d706fdd8ea359ac4ac60af99a158ab2a75bfcc2d74e5611766d25a0d083cdba490497b250c6c3c2d0d38811572c0abead8a203

  • C:\Users\Admin\AppData\Roaming\gujghtv

    MD5

    63e53cb9c5fce8cb51c409a8d2e7def4

    SHA1

    69aa4c4da55e3d33b60e6198250c47480b9548c9

    SHA256

    36d5257db370921850cf447f4cbda680121d96604b12a0958434c31d71fa9964

    SHA512

    c4d0f1a0d9ac9c7e8e711b6426d706fdd8ea359ac4ac60af99a158ab2a75bfcc2d74e5611766d25a0d083cdba490497b250c6c3c2d0d38811572c0abead8a203

  • C:\Users\Admin\AppData\Roaming\gujghtv

    MD5

    63e53cb9c5fce8cb51c409a8d2e7def4

    SHA1

    69aa4c4da55e3d33b60e6198250c47480b9548c9

    SHA256

    36d5257db370921850cf447f4cbda680121d96604b12a0958434c31d71fa9964

    SHA512

    c4d0f1a0d9ac9c7e8e711b6426d706fdd8ea359ac4ac60af99a158ab2a75bfcc2d74e5611766d25a0d083cdba490497b250c6c3c2d0d38811572c0abead8a203

  • memory/1952-125-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3036-119-0x0000000000A30000-0x0000000000A46000-memory.dmp

    Filesize

    88KB

  • memory/3036-126-0x0000000000A60000-0x0000000000A76000-memory.dmp

    Filesize

    88KB

  • memory/3192-116-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3192-118-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3468-122-0x00000000006C0000-0x00000000006E5000-memory.dmp

    Filesize

    148KB

  • memory/3800-117-0x00000000005E0000-0x00000000005E9000-memory.dmp

    Filesize

    36KB