Resubmissions

10-05-2024 17:13

240510-vrrk4sgd7t 10

10-05-2024 17:09

240510-vphv7abd29 10

Analysis

  • max time kernel
    96s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2024 17:13

General

  • Target

    High Priority/5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe

  • Size

    669KB

  • MD5

    ead18f3a909685922d7213714ea9a183

  • SHA1

    1270bd7fd62acc00447b30f066bb23f4745869bf

  • SHA256

    5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18

  • SHA512

    6e532d9c3d186e4dac38823ae9152056346e283613f0caf088b21a1b3e5f4f6cf3bad8c407168b1072895a386e3be0b8c11ad1cb326d3d3ff0eb8562052def91

  • SSDEEP

    6144:bLUHLyHlwFjxDi2nEZkQ4NXxp0XMgkBWPqdN/jGdfYY7SRA7j4YlvfYAAjJ:4uFi02nEZh4jp0XLuxGdgTm73vL

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Modifies file permissions 1 TTPs 1 IoCs
  • UPX packed file 6 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 6 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\High Priority\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
    "C:\Users\Admin\AppData\Local\Temp\High Priority\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1016
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\2ca011b1-0f7a-4ae5-9c5a-b400f5414383" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      PID:3720
    • C:\Users\Admin\AppData\Local\Temp\High Priority\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
      "C:\Users\Admin\AppData\Local\Temp\High Priority\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3756
      • C:\Users\Admin\AppData\Local\Temp\High Priority\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\High Priority\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --ForNetRes "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1 IsNotAutoStart IsNotTask
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:232
        • C:\Users\Admin\AppData\Local\Temp\High Priority\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
          "C:\Users\Admin\AppData\Local\Temp\High Priority\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 232 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4496
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 1300
            5⤵
            • Program crash
            PID:780
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 232 -s 1620
          4⤵
          • Program crash
          PID:2820
      • C:\Users\Admin\AppData\Local\Temp\High Priority\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\High Priority\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 3756 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2660
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1016 -s 2076
      2⤵
      • Program crash
      PID:3184
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1016 -ip 1016
    1⤵
      PID:4916
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4496 -ip 4496
      1⤵
        PID:3040
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 232 -ip 232
        1⤵
          PID:5016

        Network

        MITRE ATT&CK Matrix ATT&CK v13

        Persistence

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Privilege Escalation

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Defense Evasion

        File and Directory Permissions Modification

        1
        T1222

        Modify Registry

        1
        T1112

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        2
        T1082

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
          Filesize

          1KB

          MD5

          d4f07ee61e152f1392d3acfbd611a65d

          SHA1

          cbad4b0fc4b752be2a4b29ac12b40b9d04d3888a

          SHA256

          e3568bd51370abfded43c7e09b4f26d1d018e3d0925890d457d0bcf080cfc495

          SHA512

          209fed14cb895ff81521ed80a93b9c1c10c227b8102d65dddd9fd651fa5990d307a7f3836766f660362caaba2fb6573a2b3e542254eb593466e8696a3b87102e

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
          Filesize

          724B

          MD5

          8202a1cd02e7d69597995cabbe881a12

          SHA1

          8858d9d934b7aa9330ee73de6c476acf19929ff6

          SHA256

          58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

          SHA512

          97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
          Filesize

          410B

          MD5

          3987ea4ef9113f3bea01ac060d0bc11c

          SHA1

          7e69d33c898c7b9a8466eadf21cc2af2d2a77935

          SHA256

          609fee33382ea6b4bc16b23f187edb3cbeb1706e5e7c9ae460955dcb7337556d

          SHA512

          35aa17b77fb6fc71bce19c05071d515bde672b17a06b6358d426ad27124868859ab561d4c01c68bc863f0861193d522101d3b2a95fc16c9a172d26ff31647644

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
          Filesize

          392B

          MD5

          a2f12d171d106bbb156c839526eb5d0e

          SHA1

          31d484027b473fca0a76643f4ae1c2bc875bdd44

          SHA256

          1c71fbf92d6b42fd7d444cea55c484aed6f6df274369bf1674cc1df37adb757c

          SHA512

          27fc6dadf0f318ad6e7208df05879049a7cd81e6373cc06fb92313c07a48cf58d7d393507efbbab997c4b98f7cd284da72e023123735e5a0e67d2a51d29fc5e7

        • C:\Users\Admin\AppData\Local\2ca011b1-0f7a-4ae5-9c5a-b400f5414383\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
          Filesize

          669KB

          MD5

          ead18f3a909685922d7213714ea9a183

          SHA1

          1270bd7fd62acc00447b30f066bb23f4745869bf

          SHA256

          5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18

          SHA512

          6e532d9c3d186e4dac38823ae9152056346e283613f0caf088b21a1b3e5f4f6cf3bad8c407168b1072895a386e3be0b8c11ad1cb326d3d3ff0eb8562052def91

        • memory/232-28-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/232-37-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/232-33-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/232-24-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/1016-13-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/1016-14-0x0000000000400000-0x0000000000476000-memory.dmp
          Filesize

          472KB

        • memory/1016-3-0x0000000000400000-0x0000000000476000-memory.dmp
          Filesize

          472KB

        • memory/1016-2-0x00000000004E0000-0x00000000005E0000-memory.dmp
          Filesize

          1024KB

        • memory/1016-0-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/2660-25-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/2660-34-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/3756-12-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/3756-26-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/3756-23-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/3756-22-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/3756-17-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/3756-16-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/4496-30-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/4496-35-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/4496-36-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB