Analysis

  • max time kernel
    30s
  • max time network
    91s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    04-05-2023 12:31

General

  • Target

    arrow/2fb8100d4fb1ee22837aec10889c4b0303434e50944b96a390164e449eb62dee.exe

  • Size

    28KB

  • MD5

    6082510f97c65c06f1d21809efa9d040

  • SHA1

    78e65ca4aef33eea338a2972f19679552cb7c701

  • SHA256

    2fb8100d4fb1ee22837aec10889c4b0303434e50944b96a390164e449eb62dee

  • SHA512

    fc56029acc10a16f98d0405d9dca6e33be996a8ae2bc7353c4cac9b5431566cdb675da975740f5cd428ef24f28c3542e2070dd6d29e9b519d55d92a0ea5fc649

  • SSDEEP

    768:heqX/79Z4TCXfVsNuRVbpLchtszwBRUgT6TtQ0nt:hBX/zlsNuRVbWawBKgT6TtQK

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\arrow\2fb8100d4fb1ee22837aec10889c4b0303434e50944b96a390164e449eb62dee.exe
    "C:\Users\Admin\AppData\Local\Temp\arrow\2fb8100d4fb1ee22837aec10889c4b0303434e50944b96a390164e449eb62dee.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1236
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C timeout 20
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1200
      • C:\Windows\SysWOW64\timeout.exe
        timeout 20
        3⤵
        • Delays execution with timeout.exe
        PID:1516
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1236 -s 1828
      2⤵
      • Program crash
      PID:824

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    62KB

    MD5

    3ac860860707baaf32469fa7cc7c0192

    SHA1

    c33c2acdaba0e6fa41fd2f00f186804722477639

    SHA256

    d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

    SHA512

    d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

  • C:\Users\Admin\AppData\Local\Temp\Tar2E97.tmp

    Filesize

    164KB

    MD5

    4ff65ad929cd9a367680e0e5b1c08166

    SHA1

    c0af0d4396bd1f15c45f39d3b849ba444233b3a2

    SHA256

    c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

    SHA512

    f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

  • memory/1236-54-0x0000000000D80000-0x0000000000D8C000-memory.dmp

    Filesize

    48KB

  • memory/1236-55-0x0000000004950000-0x0000000004990000-memory.dmp

    Filesize

    256KB

  • memory/1236-93-0x0000000004950000-0x0000000004990000-memory.dmp

    Filesize

    256KB