Analysis

  • max time kernel
    147s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-11-2022 19:38

General

  • Target

    231f5a17a817ee3ae8bbd40f380a2acaf858da5cb829702d21c152146da8c9d1.exe

  • Size

    440KB

  • MD5

    c1fda49e1bd80bd2a0578b70612d20b6

  • SHA1

    4d8aabdd3e077fac524e47d4d51d6a355dcc643e

  • SHA256

    231f5a17a817ee3ae8bbd40f380a2acaf858da5cb829702d21c152146da8c9d1

  • SHA512

    d9428687eb60d86f9fb902581528ffed0f37f87ebd44396def4b1e69af4730d07409509472dec2df0de186eecf98cd741e7e5293f5168513d5e333110d3bb85e

  • SSDEEP

    12288:ZqCPKZMtxP0olMB3aC53GvNuovRF9w46:ZbPiaN0oSlT53GFbRF

Malware Config

Signatures

  • HawkEye

    HawkEye is a malware kit that has seen continuous development since at least 2013.

  • NirSoft MailPassView 5 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 6 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 10 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\231f5a17a817ee3ae8bbd40f380a2acaf858da5cb829702d21c152146da8c9d1.exe
    "C:\Users\Admin\AppData\Local\Temp\231f5a17a817ee3ae8bbd40f380a2acaf858da5cb829702d21c152146da8c9d1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3544
    • C:\Users\Admin\AppData\Local\Temp\231f5a17a817ee3ae8bbd40f380a2acaf858da5cb829702d21c152146da8c9d1.exe
      "C:\Users\Admin\AppData\Local\Temp\231f5a17a817ee3ae8bbd40f380a2acaf858da5cb829702d21c152146da8c9d1.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:4532
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:5016
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:312
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
            C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
            5⤵
            • Accesses Microsoft Outlook accounts
            PID:3912
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
            C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:3996

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\231f5a17a817ee3ae8bbd40f380a2acaf858da5cb829702d21c152146da8c9d1.exe.log

    Filesize

    594B

    MD5

    fdb26b3b547022b45cfaeee57eafd566

    SHA1

    11c6798b8a59233f404014c5e79b3363cd564b37

    SHA256

    2707fc7f074413881b7bafca05079327b188db6005709951e7f69d39a2af97c0

    SHA512

    44d9bb8c0f0b341690d00eda86e15a50f7f29ce9595925c1a2a7e19ad26202d10049a7a97bea278ecb7d429ad555de8edceeffff664d4b06309a9410a09bb700

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\Windows Update.exe.log

    Filesize

    774B

    MD5

    fc93eb9acb036dc0adcb7e9203deae84

    SHA1

    f6180e425e36b03252e18d9edb38c853a0546226

    SHA256

    8da330d49f43e46c3c34a7283f168ab399a37280b490503d7e7ca8ff34eaddae

    SHA512

    8ed8c6f1199da12f71819be099b2f129eced45e27e7bd7e1efbb07b09c7102bd31aaa9c39de85c9a583963b9331248d53d76eec0eb2b8ba7173ab0fdef25a620

  • C:\Users\Admin\AppData\Local\Temp\SysInfo.txt

    Filesize

    102B

    MD5

    6fb44d97a1b79ad1c15df4891995b0e5

    SHA1

    92ef769e24a846a116d6dbffb74a23ffb30a7a1a

    SHA256

    0744fafb27858c73155642cc01681f15cdda4bb9456ac727ec426f99e3227465

    SHA512

    aecaf00dc70bf871307cac9abbff4c0b187ae5d2ae74444d1b5baf0761f7458c138cc2d3b06db0ce45ded3db9ff65fddfe3cfc231564f6f9e02f5de476fc903b

  • C:\Users\Admin\AppData\Local\Temp\holderwb.txt

    Filesize

    3KB

    MD5

    f94dc819ca773f1e3cb27abbc9e7fa27

    SHA1

    9a7700efadc5ea09ab288544ef1e3cd876255086

    SHA256

    a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

    SHA512

    72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

  • C:\Users\Admin\AppData\Roaming\Windows Update.exe

    Filesize

    440KB

    MD5

    c1fda49e1bd80bd2a0578b70612d20b6

    SHA1

    4d8aabdd3e077fac524e47d4d51d6a355dcc643e

    SHA256

    231f5a17a817ee3ae8bbd40f380a2acaf858da5cb829702d21c152146da8c9d1

    SHA512

    d9428687eb60d86f9fb902581528ffed0f37f87ebd44396def4b1e69af4730d07409509472dec2df0de186eecf98cd741e7e5293f5168513d5e333110d3bb85e

  • C:\Users\Admin\AppData\Roaming\Windows Update.exe

    Filesize

    440KB

    MD5

    c1fda49e1bd80bd2a0578b70612d20b6

    SHA1

    4d8aabdd3e077fac524e47d4d51d6a355dcc643e

    SHA256

    231f5a17a817ee3ae8bbd40f380a2acaf858da5cb829702d21c152146da8c9d1

    SHA512

    d9428687eb60d86f9fb902581528ffed0f37f87ebd44396def4b1e69af4730d07409509472dec2df0de186eecf98cd741e7e5293f5168513d5e333110d3bb85e

  • C:\Users\Admin\AppData\Roaming\Windows Update.exe

    Filesize

    440KB

    MD5

    c1fda49e1bd80bd2a0578b70612d20b6

    SHA1

    4d8aabdd3e077fac524e47d4d51d6a355dcc643e

    SHA256

    231f5a17a817ee3ae8bbd40f380a2acaf858da5cb829702d21c152146da8c9d1

    SHA512

    d9428687eb60d86f9fb902581528ffed0f37f87ebd44396def4b1e69af4730d07409509472dec2df0de186eecf98cd741e7e5293f5168513d5e333110d3bb85e

  • memory/312-145-0x0000000000000000-mapping.dmp

  • memory/312-157-0x0000000075320000-0x00000000758D1000-memory.dmp

    Filesize

    5.7MB

  • memory/312-150-0x0000000075320000-0x00000000758D1000-memory.dmp

    Filesize

    5.7MB

  • memory/3544-132-0x0000000075320000-0x00000000758D1000-memory.dmp

    Filesize

    5.7MB

  • memory/3544-136-0x0000000075320000-0x00000000758D1000-memory.dmp

    Filesize

    5.7MB

  • memory/3544-133-0x0000000075320000-0x00000000758D1000-memory.dmp

    Filesize

    5.7MB

  • memory/3912-155-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3912-152-0x0000000000000000-mapping.dmp

  • memory/3912-156-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3912-153-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3996-161-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/3996-159-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/3996-158-0x0000000000000000-mapping.dmp

  • memory/3996-162-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/3996-164-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/4532-142-0x0000000075320000-0x00000000758D1000-memory.dmp

    Filesize

    5.7MB

  • memory/4532-137-0x0000000075320000-0x00000000758D1000-memory.dmp

    Filesize

    5.7MB

  • memory/4532-135-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/4532-134-0x0000000000000000-mapping.dmp

  • memory/5016-138-0x0000000000000000-mapping.dmp

  • memory/5016-149-0x0000000075320000-0x00000000758D1000-memory.dmp

    Filesize

    5.7MB

  • memory/5016-143-0x0000000075320000-0x00000000758D1000-memory.dmp

    Filesize

    5.7MB

  • memory/5016-144-0x0000000075320000-0x00000000758D1000-memory.dmp

    Filesize

    5.7MB