Resubmissions

29/01/2024, 04:39

240129-e973taabe9 10

29/01/2024, 02:55

240129-dew7dshgep 10

29/01/2024, 01:55

240129-ccg41sfdf2 10

29/01/2024, 01:50

240129-b9jhnsgham 3

29/01/2024, 01:26

240129-bts26sfaa4 10

Analysis

  • max time kernel
    65s
  • max time network
    67s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    29/01/2024, 01:26

General

  • Target

    research-1646684671.xls

  • Size

    648KB

  • MD5

    927005139a0be61efe849c715d875dd2

  • SHA1

    0f6a91916941d85b69e5320873a5d1c45055bc4e

  • SHA256

    b23491ede17f9a5b7d6ad27d3051a2224c214a5afa2139e5147bd26319577f85

  • SHA512

    30f40d913815f43395186b0957413e9f3f8999af97b3192372a4da86c6b5b32e3abd8adadb9623417521b57cff4e323d85d72e0e31c6be901b0926a0350c9b3e

  • SSDEEP

    6144:Hknl9oBdySAx76F6XeyTVtW/9Ny9ABnl5/PBgxOHjuM9Mq:jl5/WxIjL

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://nws.visionconsulting.ro/N1G1KCXA/dot.html

xlm40.dropper

https://royalpalm.sparkblue.lk/vCNhYrq3Yg8/dot.html

Signatures

  • Process spawned unexpected child process 2 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\research-1646684671.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1944
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 -s ..\iroto.dll
      2⤵
      • Process spawned unexpected child process
      PID:1508
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 -s ..\iroto1.dll
      2⤵
      • Process spawned unexpected child process
      PID:2500

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    4a57933a3a653cbae2335ae26950fb17

    SHA1

    ed5a14a6abadf5f458eec5e12b85581ebedb350e

    SHA256

    aab35eb44e8f28ae870cd28c2961820e2c1777f7228b4940eff7a61cd6429b7f

    SHA512

    fd7c37e5a822accffc595683f0166a346d3bd4280b6e0c5a29b88688191a2653f2904f813d841dc00e7ef74dff928ad792ae1d99c9545eb94eea9a8a1eb0a22c

  • C:\Users\Admin\AppData\Local\Temp\Cab5BAA.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar5C3A.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • C:\Users\Admin\iroto.dll

    Filesize

    1KB

    MD5

    8be4d711bc59ae9b81b4d371b8e8d72b

    SHA1

    52b3eaa5b648bca9df5ef9b345a322aac9d7b168

    SHA256

    f4feaad2e2630599e87eb19dbee6526d4c06d0f27e56f6b37c08f7abf035a627

    SHA512

    f12d4eb2f35e129989dccdb4ef367563bd836ed1b9b032d0e9d7762838f852006f03f16c0ef0203d17ced13e50e98bfad2a7dc33de1019c7dc9b8f8e005f7fce

  • memory/1944-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1944-1-0x00000000729CD000-0x00000000729D8000-memory.dmp

    Filesize

    44KB

  • memory/1944-94-0x00000000729CD000-0x00000000729D8000-memory.dmp

    Filesize

    44KB