Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    20-02-2023 16:12

General

  • Target

    tmp.exe

  • Size

    866KB

  • MD5

    7b1f03fb9936f72548c7d006eabfc310

  • SHA1

    66aef8129896c6e6dd36b2e3abadbbce7b4d51d6

  • SHA256

    e12d85aa606d45cdbb85982f5ea17d5c0b6f030dbbb30275ec0803f37c188a5b

  • SHA512

    f20b8348e0eb82f61fbaa98ce771f260bbbd22e1cf6018a49338d457b0ab5213a853e81cb4e4760c2c167a04279c6772a5076849dc89120fe31e05bb21f8c403

  • SSDEEP

    24576:b2c2oVEmdgUwB4qM742kyxzDL/KHYAmCS:ac2osByEby5DL/Dr

Malware Config

Signatures

  • Generic Chinese Botnet

    A botnet originating from China which is currently unnamed publicly.

  • Chinese Botnet payload 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 3 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 27 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c md C:\windowss64
      2⤵
        PID:1620
      • C:\windowss64\computer.exe
        "C:\windowss64\computer.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:2040
        • C:\Users\Admin\AppData\Local\Temp\._cache_computer.exe
          "C:\Users\Admin\AppData\Local\Temp\._cache_computer.exe"
          3⤵
          • Executes dropped EXE
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          PID:1004
        • C:\ProgramData\Synaptics\Synaptics.exe
          "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
          3⤵
          • Executes dropped EXE
          PID:1968
    • C:\Program Files (x86)\Imsossm.exe
      "C:\Program Files (x86)\Imsossm.exe"
      1⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      • Suspicious use of WriteProcessMemory
      PID:584
      • C:\Program Files (x86)\Imsossm.exe
        "C:\Program Files (x86)\Imsossm.exe" Win7
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious use of WriteProcessMemory
        PID:1316
        • C:\Program Files (x86)\Imsossm.exe
          "C:\Program Files (x86)\Imsossm.exe" Win7
          3⤵
          • Executes dropped EXE
          • Drops file in System32 directory
          • Modifies data under HKEY_USERS
          PID:1592
    • C:\Program Files (x86)\Microsoft Qnrddd\Ygkqiuu.exe
      "C:\Program Files (x86)\Microsoft Qnrddd\Ygkqiuu.exe"
      1⤵
      • Executes dropped EXE
      PID:1604

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    2
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    3
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\Imsossm.exe
      Filesize

      400KB

      MD5

      20beeb0a82adcce3a58372804acc46be

      SHA1

      c579d9017d2c8298fe075ff5c05963901330e72a

      SHA256

      d1aaa7e7d31bf648c57f0c721d6f6ee2b17395b4e09d9d89a4f6dbd5dd706a8e

      SHA512

      7636912ba6323063cefb7fac5a6cff9e44a474e452a4d5d4f77ef88968266de184c68112e3667585e02e811781f51ee020e61ce820e3f9a38dcfdf30e6d522bd

    • C:\Program Files (x86)\Imsossm.exe
      Filesize

      400KB

      MD5

      20beeb0a82adcce3a58372804acc46be

      SHA1

      c579d9017d2c8298fe075ff5c05963901330e72a

      SHA256

      d1aaa7e7d31bf648c57f0c721d6f6ee2b17395b4e09d9d89a4f6dbd5dd706a8e

      SHA512

      7636912ba6323063cefb7fac5a6cff9e44a474e452a4d5d4f77ef88968266de184c68112e3667585e02e811781f51ee020e61ce820e3f9a38dcfdf30e6d522bd

    • C:\Program Files (x86)\Imsossm.exe
      Filesize

      400KB

      MD5

      20beeb0a82adcce3a58372804acc46be

      SHA1

      c579d9017d2c8298fe075ff5c05963901330e72a

      SHA256

      d1aaa7e7d31bf648c57f0c721d6f6ee2b17395b4e09d9d89a4f6dbd5dd706a8e

      SHA512

      7636912ba6323063cefb7fac5a6cff9e44a474e452a4d5d4f77ef88968266de184c68112e3667585e02e811781f51ee020e61ce820e3f9a38dcfdf30e6d522bd

    • C:\Program Files (x86)\Imsossm.exe
      Filesize

      400KB

      MD5

      20beeb0a82adcce3a58372804acc46be

      SHA1

      c579d9017d2c8298fe075ff5c05963901330e72a

      SHA256

      d1aaa7e7d31bf648c57f0c721d6f6ee2b17395b4e09d9d89a4f6dbd5dd706a8e

      SHA512

      7636912ba6323063cefb7fac5a6cff9e44a474e452a4d5d4f77ef88968266de184c68112e3667585e02e811781f51ee020e61ce820e3f9a38dcfdf30e6d522bd

    • C:\Program Files (x86)\Microsoft Qnrddd\Ygkqiuu.exe
      Filesize

      866KB

      MD5

      7b1f03fb9936f72548c7d006eabfc310

      SHA1

      66aef8129896c6e6dd36b2e3abadbbce7b4d51d6

      SHA256

      e12d85aa606d45cdbb85982f5ea17d5c0b6f030dbbb30275ec0803f37c188a5b

      SHA512

      f20b8348e0eb82f61fbaa98ce771f260bbbd22e1cf6018a49338d457b0ab5213a853e81cb4e4760c2c167a04279c6772a5076849dc89120fe31e05bb21f8c403

    • C:\ProgramData\Synaptics\Synaptics.exe
      Filesize

      754KB

      MD5

      310a7ff41f6633132e6c2bc25e51e567

      SHA1

      5f687df8cc3185ed68d77d0e05502c2eb308c5c8

      SHA256

      d1425edf482717cb64db2a36357866045b0c6306d919296591ffc9bc45d680ab

      SHA512

      ee9b3114cb37e52793bccdf20a27158f5def67ed9c7d8eb772e1deaf5d5f9a0030e847dea40bb320637f29508f1be2a49c3095460a6fd3afbc3bca196f642980

    • C:\Users\Admin\AppData\Local\Temp\._cache_computer.exe
      Filesize

      400KB

      MD5

      20beeb0a82adcce3a58372804acc46be

      SHA1

      c579d9017d2c8298fe075ff5c05963901330e72a

      SHA256

      d1aaa7e7d31bf648c57f0c721d6f6ee2b17395b4e09d9d89a4f6dbd5dd706a8e

      SHA512

      7636912ba6323063cefb7fac5a6cff9e44a474e452a4d5d4f77ef88968266de184c68112e3667585e02e811781f51ee020e61ce820e3f9a38dcfdf30e6d522bd

    • C:\Users\Admin\AppData\Local\Temp\._cache_computer.exe
      Filesize

      400KB

      MD5

      20beeb0a82adcce3a58372804acc46be

      SHA1

      c579d9017d2c8298fe075ff5c05963901330e72a

      SHA256

      d1aaa7e7d31bf648c57f0c721d6f6ee2b17395b4e09d9d89a4f6dbd5dd706a8e

      SHA512

      7636912ba6323063cefb7fac5a6cff9e44a474e452a4d5d4f77ef88968266de184c68112e3667585e02e811781f51ee020e61ce820e3f9a38dcfdf30e6d522bd

    • C:\windowss64\computer.exe
      Filesize

      1.1MB

      MD5

      be689578752179e22bf915dbcf4f7520

      SHA1

      e798e703bfb90707a2872b51da73f32af566aedb

      SHA256

      de8c1aa37dd523e0699a10be71185f7a8ac1cde972d04107068f49250ef7317e

      SHA512

      89c95b387e566dfaf3f6a4ab60ee6e24d2574dd3802458e4d8f15e4c44136ac54c5b3a53addc1d28748656320050ee735fa2e8e5c57cdfb53fbdddc6eb586da8

    • C:\windowss64\computer.exe
      Filesize

      1.1MB

      MD5

      be689578752179e22bf915dbcf4f7520

      SHA1

      e798e703bfb90707a2872b51da73f32af566aedb

      SHA256

      de8c1aa37dd523e0699a10be71185f7a8ac1cde972d04107068f49250ef7317e

      SHA512

      89c95b387e566dfaf3f6a4ab60ee6e24d2574dd3802458e4d8f15e4c44136ac54c5b3a53addc1d28748656320050ee735fa2e8e5c57cdfb53fbdddc6eb586da8

    • \ProgramData\Synaptics\Synaptics.exe
      Filesize

      754KB

      MD5

      310a7ff41f6633132e6c2bc25e51e567

      SHA1

      5f687df8cc3185ed68d77d0e05502c2eb308c5c8

      SHA256

      d1425edf482717cb64db2a36357866045b0c6306d919296591ffc9bc45d680ab

      SHA512

      ee9b3114cb37e52793bccdf20a27158f5def67ed9c7d8eb772e1deaf5d5f9a0030e847dea40bb320637f29508f1be2a49c3095460a6fd3afbc3bca196f642980

    • \ProgramData\Synaptics\Synaptics.exe
      Filesize

      754KB

      MD5

      310a7ff41f6633132e6c2bc25e51e567

      SHA1

      5f687df8cc3185ed68d77d0e05502c2eb308c5c8

      SHA256

      d1425edf482717cb64db2a36357866045b0c6306d919296591ffc9bc45d680ab

      SHA512

      ee9b3114cb37e52793bccdf20a27158f5def67ed9c7d8eb772e1deaf5d5f9a0030e847dea40bb320637f29508f1be2a49c3095460a6fd3afbc3bca196f642980

    • \Users\Admin\AppData\Local\Temp\._cache_computer.exe
      Filesize

      400KB

      MD5

      20beeb0a82adcce3a58372804acc46be

      SHA1

      c579d9017d2c8298fe075ff5c05963901330e72a

      SHA256

      d1aaa7e7d31bf648c57f0c721d6f6ee2b17395b4e09d9d89a4f6dbd5dd706a8e

      SHA512

      7636912ba6323063cefb7fac5a6cff9e44a474e452a4d5d4f77ef88968266de184c68112e3667585e02e811781f51ee020e61ce820e3f9a38dcfdf30e6d522bd

    • \Users\Admin\AppData\Local\Temp\._cache_computer.exe
      Filesize

      400KB

      MD5

      20beeb0a82adcce3a58372804acc46be

      SHA1

      c579d9017d2c8298fe075ff5c05963901330e72a

      SHA256

      d1aaa7e7d31bf648c57f0c721d6f6ee2b17395b4e09d9d89a4f6dbd5dd706a8e

      SHA512

      7636912ba6323063cefb7fac5a6cff9e44a474e452a4d5d4f77ef88968266de184c68112e3667585e02e811781f51ee020e61ce820e3f9a38dcfdf30e6d522bd

    • \windowss64\computer.exe
      Filesize

      1.1MB

      MD5

      be689578752179e22bf915dbcf4f7520

      SHA1

      e798e703bfb90707a2872b51da73f32af566aedb

      SHA256

      de8c1aa37dd523e0699a10be71185f7a8ac1cde972d04107068f49250ef7317e

      SHA512

      89c95b387e566dfaf3f6a4ab60ee6e24d2574dd3802458e4d8f15e4c44136ac54c5b3a53addc1d28748656320050ee735fa2e8e5c57cdfb53fbdddc6eb586da8

    • \windowss64\computer.exe
      Filesize

      1.1MB

      MD5

      be689578752179e22bf915dbcf4f7520

      SHA1

      e798e703bfb90707a2872b51da73f32af566aedb

      SHA256

      de8c1aa37dd523e0699a10be71185f7a8ac1cde972d04107068f49250ef7317e

      SHA512

      89c95b387e566dfaf3f6a4ab60ee6e24d2574dd3802458e4d8f15e4c44136ac54c5b3a53addc1d28748656320050ee735fa2e8e5c57cdfb53fbdddc6eb586da8

    • \windowss64\computer.exe
      Filesize

      1.1MB

      MD5

      be689578752179e22bf915dbcf4f7520

      SHA1

      e798e703bfb90707a2872b51da73f32af566aedb

      SHA256

      de8c1aa37dd523e0699a10be71185f7a8ac1cde972d04107068f49250ef7317e

      SHA512

      89c95b387e566dfaf3f6a4ab60ee6e24d2574dd3802458e4d8f15e4c44136ac54c5b3a53addc1d28748656320050ee735fa2e8e5c57cdfb53fbdddc6eb586da8

    • memory/1004-4629-0x0000000000000000-mapping.dmp
    • memory/1316-5065-0x0000000000000000-mapping.dmp
    • memory/1516-516-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-506-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-466-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-465-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-480-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-479-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-481-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-483-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-482-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-487-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-486-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-484-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-485-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-493-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-492-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-491-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-490-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-489-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-488-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-524-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-523-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-522-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-521-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-520-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-519-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-518-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-517-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-467-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-515-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-514-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-513-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-512-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-511-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-510-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-509-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-508-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-507-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-478-0x0000000000400000-0x0000000000525000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-505-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-504-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-503-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-502-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-501-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-500-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-499-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-498-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-497-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-496-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-495-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-494-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-1516-0x0000000001F90000-0x0000000002090000-memory.dmp
      Filesize

      1024KB

    • memory/1516-1518-0x00000000020D0000-0x0000000002251000-memory.dmp
      Filesize

      1.5MB

    • memory/1516-4617-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-4618-0x0000000000400000-0x0000000000525000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-468-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-469-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-470-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-471-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-477-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-476-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-4619-0x0000000001F90000-0x0000000002090000-memory.dmp
      Filesize

      1024KB

    • memory/1516-54-0x0000000075111000-0x0000000075113000-memory.dmp
      Filesize

      8KB

    • memory/1516-56-0x00000000769E0000-0x0000000076A27000-memory.dmp
      Filesize

      284KB

    • memory/1516-475-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-472-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-4643-0x0000000000400000-0x0000000000525000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-474-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-473-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-463-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-462-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1516-464-0x0000000002380000-0x0000000002491000-memory.dmp
      Filesize

      1.1MB

    • memory/1592-5153-0x0000000000000000-mapping.dmp
    • memory/1604-4652-0x0000000000400000-0x0000000000525000-memory.dmp
      Filesize

      1.1MB

    • memory/1620-4616-0x0000000000000000-mapping.dmp
    • memory/1968-4633-0x0000000000000000-mapping.dmp
    • memory/2040-4622-0x0000000000000000-mapping.dmp