Analysis

  • max time kernel
    187s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    12-10-2022 15:17

General

  • Target

    a81864ca523bac00b38496fee13cfa4e7f9d48dc08e81766c277525ec050b5ce.exe

  • Size

    456KB

  • MD5

    78ceaec5ce59fb0e606fa674c9894bfb

  • SHA1

    0948b0cecd5150d8be281e6a398a3ec52b90719d

  • SHA256

    a81864ca523bac00b38496fee13cfa4e7f9d48dc08e81766c277525ec050b5ce

  • SHA512

    69ecd76167595ac30999eef0a1ab83a3dc81fe32fb0492ba1ed5a2715bb52fe256f5e5fa7541b8e482f056730226d56537056ce5d4c7311678ec6d0dff6b4dd7

  • SSDEEP

    12288:jEVXKpmokdif4JgTIoq43H2cE05nMx11DGkfb7i:jEtRliAJgMe3H2cJCx1YOb7i

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 8 IoCs
  • Adds Run key to start application 2 TTPs 47 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a81864ca523bac00b38496fee13cfa4e7f9d48dc08e81766c277525ec050b5ce.exe
    "C:\Users\Admin\AppData\Local\Temp\a81864ca523bac00b38496fee13cfa4e7f9d48dc08e81766c277525ec050b5ce.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\Users\Admin\AppData\Local\Temp\a81864ca523bac00b38496fee13cfa4e7f9d48dc08e81766c277525ec050b5ce.exe
      a81864ca523bac00b38496fee13cfa4e7f9d48dc08e81766c277525ec050b5ce.exe
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2012
      • C:\Users\Admin\iAsD8zgo9sJlU4T4lK.exe
        C:\Users\Admin\iAsD8zgo9sJlU4T4lK.exe
        3⤵
        • Modifies visiblity of hidden/system files in Explorer
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1940
        • C:\Users\Admin\xoehaew.exe
          "C:\Users\Admin\xoehaew.exe"
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          PID:1380
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c tasklist&&del iAsD8zgo9sJlU4T4lK.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1636
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            5⤵
            • Enumerates processes with tasklist
            • Suspicious use of AdjustPrivilegeToken
            PID:820
      • C:\Users\Admin\txhost.exe
        C:\Users\Admin\txhost.exe
        3⤵
        • Executes dropped EXE
        PID:1760
      • C:\Users\Admin\uxhost.exe
        C:\Users\Admin\uxhost.exe
        3⤵
        • Executes dropped EXE
        • Writes to the Master Boot Record (MBR)
        PID:1196

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\iAsD8zgo9sJlU4T4lK.exe

    Filesize

    156KB

    MD5

    c1ca4a842399156d6ce56df9fe167158

    SHA1

    c24482b800d11e8f0238df3d950b745f38c245e7

    SHA256

    197d8be66fca12a1c137e920a49610b38f29756c7b7473ec1962c6499918f15a

    SHA512

    a89f3170db1de6f296b12c42059495821ef6e9b03a8e3e58aafcfa5cfab8cc0f996e5498476f638a80f604a2c2d6b7d626bd621b35b0c4502b6916aa1380e1c9

  • C:\Users\Admin\iAsD8zgo9sJlU4T4lK.exe

    Filesize

    156KB

    MD5

    c1ca4a842399156d6ce56df9fe167158

    SHA1

    c24482b800d11e8f0238df3d950b745f38c245e7

    SHA256

    197d8be66fca12a1c137e920a49610b38f29756c7b7473ec1962c6499918f15a

    SHA512

    a89f3170db1de6f296b12c42059495821ef6e9b03a8e3e58aafcfa5cfab8cc0f996e5498476f638a80f604a2c2d6b7d626bd621b35b0c4502b6916aa1380e1c9

  • C:\Users\Admin\txhost.exe

    Filesize

    146KB

    MD5

    18c83c689100e66caedb1c76ed87bd95

    SHA1

    901c0f6c4757d37d5a2e357704344aeb31a9cadb

    SHA256

    37d78483538af016b7646678df08893badea86d7b5f4317b99393bbcd3c172b9

    SHA512

    e87c6aeaa1cc7a69f390c57d4cbcc1efa3cb5349a445831f822f7843b3a3d850f9793818d4e1e7fe011a5af0e99bbdb7cf8a5ec13541dedb8431fc47ef9f33b1

  • C:\Users\Admin\uxhost.exe

    Filesize

    219KB

    MD5

    861e3902ecc188eba323032a88d1e56e

    SHA1

    6c6265be666d9c93acd6ddc55e94a9de8580191c

    SHA256

    79ae1f344b550f57a9f03ec18894df1b9b255b865b5872801d0f043c1b77eb84

    SHA512

    044f284dd78b7aad2f733628c901d7bd1067436d76c4b3fad3bf024f8faecaaf38e453053431daf7afa8c8b14f5eea6fe4f75148b8923ac2441f966ac118cec4

  • C:\Users\Admin\xoehaew.exe

    Filesize

    156KB

    MD5

    e25dfd66efdb540b300d91414f143403

    SHA1

    2cd652982994e54d387dadd894671eca4ba2e2bb

    SHA256

    733e5c257440d559129f85798d28f8f9d393e5fdb6549513807a2f68458f791b

    SHA512

    63061304d49be4b5d3481f7d2e083af6244d20c15d5e598dcde93a4aaf5332724b7a6ff250d40d6eb2dd45b9fae32c991dc8814231c078ef9ee8458e31a2dd62

  • C:\Users\Admin\xoehaew.exe

    Filesize

    156KB

    MD5

    e25dfd66efdb540b300d91414f143403

    SHA1

    2cd652982994e54d387dadd894671eca4ba2e2bb

    SHA256

    733e5c257440d559129f85798d28f8f9d393e5fdb6549513807a2f68458f791b

    SHA512

    63061304d49be4b5d3481f7d2e083af6244d20c15d5e598dcde93a4aaf5332724b7a6ff250d40d6eb2dd45b9fae32c991dc8814231c078ef9ee8458e31a2dd62

  • \Users\Admin\iAsD8zgo9sJlU4T4lK.exe

    Filesize

    156KB

    MD5

    c1ca4a842399156d6ce56df9fe167158

    SHA1

    c24482b800d11e8f0238df3d950b745f38c245e7

    SHA256

    197d8be66fca12a1c137e920a49610b38f29756c7b7473ec1962c6499918f15a

    SHA512

    a89f3170db1de6f296b12c42059495821ef6e9b03a8e3e58aafcfa5cfab8cc0f996e5498476f638a80f604a2c2d6b7d626bd621b35b0c4502b6916aa1380e1c9

  • \Users\Admin\iAsD8zgo9sJlU4T4lK.exe

    Filesize

    156KB

    MD5

    c1ca4a842399156d6ce56df9fe167158

    SHA1

    c24482b800d11e8f0238df3d950b745f38c245e7

    SHA256

    197d8be66fca12a1c137e920a49610b38f29756c7b7473ec1962c6499918f15a

    SHA512

    a89f3170db1de6f296b12c42059495821ef6e9b03a8e3e58aafcfa5cfab8cc0f996e5498476f638a80f604a2c2d6b7d626bd621b35b0c4502b6916aa1380e1c9

  • \Users\Admin\txhost.exe

    Filesize

    146KB

    MD5

    18c83c689100e66caedb1c76ed87bd95

    SHA1

    901c0f6c4757d37d5a2e357704344aeb31a9cadb

    SHA256

    37d78483538af016b7646678df08893badea86d7b5f4317b99393bbcd3c172b9

    SHA512

    e87c6aeaa1cc7a69f390c57d4cbcc1efa3cb5349a445831f822f7843b3a3d850f9793818d4e1e7fe011a5af0e99bbdb7cf8a5ec13541dedb8431fc47ef9f33b1

  • \Users\Admin\txhost.exe

    Filesize

    146KB

    MD5

    18c83c689100e66caedb1c76ed87bd95

    SHA1

    901c0f6c4757d37d5a2e357704344aeb31a9cadb

    SHA256

    37d78483538af016b7646678df08893badea86d7b5f4317b99393bbcd3c172b9

    SHA512

    e87c6aeaa1cc7a69f390c57d4cbcc1efa3cb5349a445831f822f7843b3a3d850f9793818d4e1e7fe011a5af0e99bbdb7cf8a5ec13541dedb8431fc47ef9f33b1

  • \Users\Admin\uxhost.exe

    Filesize

    219KB

    MD5

    861e3902ecc188eba323032a88d1e56e

    SHA1

    6c6265be666d9c93acd6ddc55e94a9de8580191c

    SHA256

    79ae1f344b550f57a9f03ec18894df1b9b255b865b5872801d0f043c1b77eb84

    SHA512

    044f284dd78b7aad2f733628c901d7bd1067436d76c4b3fad3bf024f8faecaaf38e453053431daf7afa8c8b14f5eea6fe4f75148b8923ac2441f966ac118cec4

  • \Users\Admin\uxhost.exe

    Filesize

    219KB

    MD5

    861e3902ecc188eba323032a88d1e56e

    SHA1

    6c6265be666d9c93acd6ddc55e94a9de8580191c

    SHA256

    79ae1f344b550f57a9f03ec18894df1b9b255b865b5872801d0f043c1b77eb84

    SHA512

    044f284dd78b7aad2f733628c901d7bd1067436d76c4b3fad3bf024f8faecaaf38e453053431daf7afa8c8b14f5eea6fe4f75148b8923ac2441f966ac118cec4

  • \Users\Admin\xoehaew.exe

    Filesize

    156KB

    MD5

    e25dfd66efdb540b300d91414f143403

    SHA1

    2cd652982994e54d387dadd894671eca4ba2e2bb

    SHA256

    733e5c257440d559129f85798d28f8f9d393e5fdb6549513807a2f68458f791b

    SHA512

    63061304d49be4b5d3481f7d2e083af6244d20c15d5e598dcde93a4aaf5332724b7a6ff250d40d6eb2dd45b9fae32c991dc8814231c078ef9ee8458e31a2dd62

  • \Users\Admin\xoehaew.exe

    Filesize

    156KB

    MD5

    e25dfd66efdb540b300d91414f143403

    SHA1

    2cd652982994e54d387dadd894671eca4ba2e2bb

    SHA256

    733e5c257440d559129f85798d28f8f9d393e5fdb6549513807a2f68458f791b

    SHA512

    63061304d49be4b5d3481f7d2e083af6244d20c15d5e598dcde93a4aaf5332724b7a6ff250d40d6eb2dd45b9fae32c991dc8814231c078ef9ee8458e31a2dd62

  • memory/1196-104-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/1196-103-0x0000000000220000-0x0000000000284000-memory.dmp

    Filesize

    400KB

  • memory/1196-102-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/1196-101-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/1196-100-0x0000000000220000-0x0000000000284000-memory.dmp

    Filesize

    400KB

  • memory/1196-98-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2012-65-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB

  • memory/2012-55-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB

  • memory/2012-68-0x0000000076121000-0x0000000076123000-memory.dmp

    Filesize

    8KB

  • memory/2012-96-0x0000000000330000-0x0000000000394000-memory.dmp

    Filesize

    400KB

  • memory/2012-97-0x0000000000330000-0x0000000000394000-memory.dmp

    Filesize

    400KB

  • memory/2012-57-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB

  • memory/2012-54-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB

  • memory/2012-62-0x0000000000400000-0x000000000048D000-memory.dmp

    Filesize

    564KB