Resubmissions

21-12-2023 18:53

231221-xjlq1abehm 10

Analysis

  • max time kernel
    117s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    21-12-2023 18:53

General

  • Target

    OperaGXSetup.exe

  • Size

    11.5MB

  • MD5

    46431992aa566007949fc4acbc058856

  • SHA1

    533e0cef48e51095f1460fd52cc542923d23d29d

  • SHA256

    846f5e52aa6b4f11a29cab1f505463938938c3c5ad8d753fe70a148200c8c446

  • SHA512

    02b1bb111b9db1af37d7f06a36e5f59aac0e9f6a36878db0148f36b7c68ac93f0d136755a8b0a084a510adf2b9eff4cd72b2ab20849a0ea333920557808a2a52

  • SSDEEP

    3072:3+fKfLxPq+l/AGDF+FUN9TgPC543HaHJSp8Bb8EGF9N7:OfKfI+l4GDCACS4Kz8EGF9N

Score
7/10

Malware Config

Signatures

  • Reads user/profile data of web browsers 2 TTPs

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

  • Program crash 1 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\OperaGXSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\OperaGXSetup.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:1988
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1988 -s 728
      2⤵
      • Program crash
      PID:2908

Network

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Collection

Data from Local System

1
T1005

Replay Monitor

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Downloads

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

    344B

    MD5

    ad99d152cc032443b1778a2c8d8654d7

    SHA1

    f1b30ec4234d66f74bc985e06dbcfa40fcaaef46

    SHA256

    9ef879c307222955b143abbf85b9778462e5f949c3d131e5c68dab13e54cd4fc

    SHA512

    133b027ff76239da2bdc6ba02e44fcc50d4213f1168f590f9e90ecd36595c30affc8f7c057109d87af78717ce648d64f43f63a034f398367f0ce325cfbf6fbc5

  • C:\Users\Admin\AppData\Local\Temp\Cab79B4.tmp
    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar7AC0.tmp
    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • memory/1988-0-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/1988-1-0x00000000001C0000-0x0000000000200000-memory.dmp
    Filesize

    256KB

  • memory/1988-2-0x00000000001C0000-0x0000000000200000-memory.dmp
    Filesize

    256KB