Analysis

  • max time kernel
    82s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    26-11-2020 14:10

General

  • Target

    onir0.bin.exe

  • Size

    112KB

  • MD5

    c989356bdc4ffc9b4752acecfddb551d

  • SHA1

    fff0e011c492e174a3175c3ddb2ee0d6ed9d7285

  • SHA256

    8afc2dd7267bbf83a46549f4e7731f6473610c33bc9ee41b4dd0b994c3a29473

  • SHA512

    f51769eed207b7b0e9387c9bc13d46502f0c25086c6f1ce8d16678bbe639f06efb799959efac10aefd6d92dd08310216d2929178ebee3f2c73ecad286c89da1f

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://etasuklavish.today/

http://mragyzmachnobesdi.today/

http://kimchinikuzims.today/

http://slacvostinrius.today/

http://straponuliusyn.today/

http://grammmdinss.today/

http://viprasputinsd.chimkent.su/

http://lupadypa.dagestan.su/

http://stoknolimchin.exnet.su/

http://musaroprovadnikov.live/

http://teemforyourexprensiti.life/

http://stolkgolmishutich.termez.su/

http://roompampamgandish.wtf/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 41 IoCs
  • Suspicious behavior: EnumeratesProcesses 1298 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 40 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\onir0.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\onir0.bin.exe"
    1⤵
    • Loads dropped DLL
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:640
  • C:\Users\Admin\AppData\Local\Temp\AA8E.tmp.exe
    C:\Users\Admin\AppData\Local\Temp\AA8E.tmp.exe
    1⤵
    • Executes dropped EXE
    PID:3548
  • C:\Users\Admin\AppData\Local\Temp\ACE0.tmp.exe
    C:\Users\Admin\AppData\Local\Temp\ACE0.tmp.exe
    1⤵
    • Executes dropped EXE
    PID:2924
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2136
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2136 CREDAT:82945 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:2884
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4032
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4032 CREDAT:82945 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:2708

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\AA8E.tmp.exe
    MD5

    86fc9993f4fe92809513a02d907205cd

    SHA1

    a23217fa44754496be797902abe54aa661dc7774

    SHA256

    edbb56fe63e565c456de8153a6c6782dc6697b6dac509eeb19a99e462d9e717d

    SHA512

    0242225e1b5c2df539893cdc1fb873e8a7fcf30356d30474bb1ad68ed9f3126673c253d75141ef89b48953c8c11898d0d73d2aaa618b4f6e8b604a152a3a45e7

  • C:\Users\Admin\AppData\Local\Temp\AA8E.tmp.exe
    MD5

    86fc9993f4fe92809513a02d907205cd

    SHA1

    a23217fa44754496be797902abe54aa661dc7774

    SHA256

    edbb56fe63e565c456de8153a6c6782dc6697b6dac509eeb19a99e462d9e717d

    SHA512

    0242225e1b5c2df539893cdc1fb873e8a7fcf30356d30474bb1ad68ed9f3126673c253d75141ef89b48953c8c11898d0d73d2aaa618b4f6e8b604a152a3a45e7

  • C:\Users\Admin\AppData\Local\Temp\ACE0.tmp.exe
    MD5

    dd27ae12604dd29819d082e8140f4100

    SHA1

    6d36e154d8db8ef33ce3b3d0fa7bbaf57fb3c8ac

    SHA256

    c046cb43c97a7a25a97ac98951688286c57e4b987743729320b647949e68a0dd

    SHA512

    5a56a4ddc73816d0769a5a54e98dced1f4de3edf1807e718e5616e1bd0b8033c4defa7005d4d8134e2ed0137c41b1c7b583884195faff0287792be495d950a85

  • C:\Users\Admin\AppData\Local\Temp\ACE0.tmp.exe
    MD5

    dd27ae12604dd29819d082e8140f4100

    SHA1

    6d36e154d8db8ef33ce3b3d0fa7bbaf57fb3c8ac

    SHA256

    c046cb43c97a7a25a97ac98951688286c57e4b987743729320b647949e68a0dd

    SHA512

    5a56a4ddc73816d0769a5a54e98dced1f4de3edf1807e718e5616e1bd0b8033c4defa7005d4d8134e2ed0137c41b1c7b583884195faff0287792be495d950a85

  • \Users\Admin\AppData\Local\Temp\2F6.tmp
    MD5

    50741b3f2d7debf5d2bed63d88404029

    SHA1

    56210388a627b926162b36967045be06ffb1aad3

    SHA256

    f2f8732ae464738372ff274b7e481366cecdd2337210d4a3cbcd089c958a730c

    SHA512

    fac6bfe35b1ee08b3d42d330516a260d9cdb4a90bbb0491411a583029b92a59d20af3552372ea8fb3f59442b3945bf524ef284127f397ae7179467080be8e9b3

  • memory/640-0-0x00000000033B9000-0x00000000033BA000-memory.dmp
    Filesize

    4KB

  • memory/640-1-0x0000000004EA0000-0x0000000004EA1000-memory.dmp
    Filesize

    4KB

  • memory/1020-16-0x0000000000000000-mapping.dmp
  • memory/2708-15-0x0000000000000000-mapping.dmp
  • memory/2884-14-0x0000000000000000-mapping.dmp
  • memory/2924-13-0x0000000004C60000-0x0000000004C61000-memory.dmp
    Filesize

    4KB

  • memory/2924-12-0x00000000031E8000-0x00000000031E9000-memory.dmp
    Filesize

    4KB

  • memory/2924-7-0x0000000000000000-mapping.dmp
  • memory/3040-3-0x0000000001230000-0x0000000001246000-memory.dmp
    Filesize

    88KB

  • memory/3548-10-0x0000000003118000-0x0000000003119000-memory.dmp
    Filesize

    4KB

  • memory/3548-11-0x0000000004CF0000-0x0000000004CF1000-memory.dmp
    Filesize

    4KB

  • memory/3548-4-0x0000000000000000-mapping.dmp
  • memory/3992-17-0x0000000000000000-mapping.dmp