Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    08-05-2021 20:09

General

  • Target

    cfce93d80c442194d4750ff22eab13e2a37e545caff4d448ba93760590f63f3b.exe

  • Size

    3.3MB

  • MD5

    ff36e55c32797704f09e344148c66cf2

  • SHA1

    f3ee023dbfc31ed8881932b25511155ade5ab633

  • SHA256

    cfce93d80c442194d4750ff22eab13e2a37e545caff4d448ba93760590f63f3b

  • SHA512

    987fc3b7a46ef9ac6643c16173af0f81d6bc15887de695c794b0a1d133a50d00a914814423c5cd69ba1019c5c3fcb2c5626c1561cec295e028a5eb871ba4ddab

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 13 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Modifies registry class 64 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cfce93d80c442194d4750ff22eab13e2a37e545caff4d448ba93760590f63f3b.exe
    "C:\Users\Admin\AppData\Local\Temp\cfce93d80c442194d4750ff22eab13e2a37e545caff4d448ba93760590f63f3b.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4012
    • C:\Users\Admin\AppData\Local\Temp\._cache_cfce93d80c442194d4750ff22eab13e2a37e545caff4d448ba93760590f63f3b.exe
      "C:\Users\Admin\AppData\Local\Temp\._cache_cfce93d80c442194d4750ff22eab13e2a37e545caff4d448ba93760590f63f3b.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Enumerates system info in registry
      • Suspicious use of SetWindowsHookEx
      PID:3124
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3124 -s 1200
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4344
    • C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:424
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:4024
  • C:\Windows\system32\browser_broker.exe
    C:\Windows\system32\browser_broker.exe -Embedding
    1⤵
    • Modifies Internet Explorer settings
    PID:1060
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2400
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    PID:4128
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4608

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\Synaptics\Synaptics.exe

    MD5

    6e163085114a0f35940c93f0d3760f5a

    SHA1

    3ba820bdab95cd6455a741da830f82809155fe39

    SHA256

    84acaf5d2eb4a13e1f13386026b1372e1633a3d2bc069062eaddf1aa9d227586

    SHA512

    e2270070b6bb1f25b2a016237e1691c42ff66cb2a00d3a2407957a812a953c69ca0c0c15c241f17ae83c8c668f7fdc983098f69ada467301f2d8029dd10cb836

  • C:\ProgramData\Synaptics\Synaptics.exe

    MD5

    6e163085114a0f35940c93f0d3760f5a

    SHA1

    3ba820bdab95cd6455a741da830f82809155fe39

    SHA256

    84acaf5d2eb4a13e1f13386026b1372e1633a3d2bc069062eaddf1aa9d227586

    SHA512

    e2270070b6bb1f25b2a016237e1691c42ff66cb2a00d3a2407957a812a953c69ca0c0c15c241f17ae83c8c668f7fdc983098f69ada467301f2d8029dd10cb836

  • C:\Users\Admin\AppData\Local\Temp\._cache_cfce93d80c442194d4750ff22eab13e2a37e545caff4d448ba93760590f63f3b.exe

    MD5

    44c56c84ffceeb978c8fb5a782086ec4

    SHA1

    e3d4f0eda5fd7ebe455b9f55c00768c281b7416c

    SHA256

    5e75ad26b452c9801f09c6c87424faf28af9814749430331021dd1de8fcbe90d

    SHA512

    25286ac53e1468206619105baca4c0dfbb49737fac45c1c0cc814ab6182514caeafbcb7dacf3d61248d06abc4a0d3f5d23bab372d6fb69f084a5c18d990165a7

  • C:\Users\Admin\AppData\Local\Temp\._cache_cfce93d80c442194d4750ff22eab13e2a37e545caff4d448ba93760590f63f3b.exe

    MD5

    44c56c84ffceeb978c8fb5a782086ec4

    SHA1

    e3d4f0eda5fd7ebe455b9f55c00768c281b7416c

    SHA256

    5e75ad26b452c9801f09c6c87424faf28af9814749430331021dd1de8fcbe90d

    SHA512

    25286ac53e1468206619105baca4c0dfbb49737fac45c1c0cc814ab6182514caeafbcb7dacf3d61248d06abc4a0d3f5d23bab372d6fb69f084a5c18d990165a7

  • memory/424-124-0x0000000001F80000-0x0000000001F81000-memory.dmp

    Filesize

    4KB

  • memory/424-118-0x0000000000000000-mapping.dmp

  • memory/3124-122-0x0000000074410000-0x00000000745D2000-memory.dmp

    Filesize

    1.8MB

  • memory/3124-121-0x0000000076FB0000-0x000000007713E000-memory.dmp

    Filesize

    1.6MB

  • memory/3124-115-0x0000000000000000-mapping.dmp

  • memory/3124-125-0x0000000002A9B000-0x0000000002C5E000-memory.dmp

    Filesize

    1.8MB

  • memory/3124-126-0x0000000075AE0000-0x0000000075C1C000-memory.dmp

    Filesize

    1.2MB

  • memory/3124-127-0x00000000028FE000-0x0000000002A8D000-memory.dmp

    Filesize

    1.6MB

  • memory/3124-128-0x0000000074300000-0x0000000074377000-memory.dmp

    Filesize

    476KB

  • memory/3124-129-0x00000000026F0000-0x00000000027C1000-memory.dmp

    Filesize

    836KB

  • memory/3124-130-0x0000000002DA8000-0x0000000002EE5000-memory.dmp

    Filesize

    1.2MB

  • memory/3124-131-0x00000000027D0000-0x0000000002849000-memory.dmp

    Filesize

    484KB

  • memory/3124-132-0x0000000000400000-0x0000000000848000-memory.dmp

    Filesize

    4.3MB

  • memory/4012-114-0x0000000002480000-0x0000000002481000-memory.dmp

    Filesize

    4KB