Resubmissions

22-11-2023 17:02

231122-vkac9adg64 10

19-01-2021 19:24

210119-s26yznnqsn 10

19-11-2020 13:14

201119-s41ec6lt86 10

Analysis

  • max time kernel
    159s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-11-2023 17:02

General

  • Target

    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\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
    "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4456
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\babf1579-8b25-4222-a2c4-36b35136292c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      PID:2696
    • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
      "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3728
      • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --ForNetRes "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1 IsNotAutoStart IsNotTask
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4388
        • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
          "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 4388 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2788
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2788 -s 1640
            5⤵
            • Program crash
            PID:3300
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4388 -s 1640
          4⤵
          • Program crash
          PID:3816
      • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 3728 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:3692
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4456 -s 1912
      2⤵
      • Program crash
      PID:4528
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4456 -ip 4456
    1⤵
      PID:4444
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 2788 -ip 2788
      1⤵
        PID:2472
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4388 -ip 4388
        1⤵
          PID:2164

        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

          e8115cd4deb7c7f08d5b40eea4c336c6

          SHA1

          55dc5c576eaa87bd87380f5ff11ded0bc434bfcf

          SHA256

          792cb4f801fd293addb64d6686077ef8b034cda21dfee3110f23a995c9dedf19

          SHA512

          0a3e98e2628e27263e0ec3b9370642468ca62cc03023c5a5776a776b99388b5bc266fe509f42d82855740548a8e2b13eba68f6c0c51ad4edb804c79555b1877d

        • 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

          34dae76bfe3de040117a271de23bfa1a

          SHA1

          1d8a1a78f0488b1745d52211c40ac4a1262dd0ee

          SHA256

          c0c6c1f154b336ebd14f44762bb2f62740493961b7aa2480ed0712588a42ae8a

          SHA512

          09ecbe0c48c43a25a7a96f52cb7fae06fad3407229757cd429a68738a4638de67c66f5c0de8d03fb488d1ff15e273f28a64263b91239bb81874319c78c3e26f7

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

          392B

          MD5

          a80c01c87023f00666edc66ccdbda82c

          SHA1

          dc2b828c9a45315bdf6f08c8e913a3dc941c23a2

          SHA256

          b9e6e2c34ecf5271b19a0e69bf58ae6cc7076df8a3f0aae15149e96cd1619a9c

          SHA512

          3e3dfae73ee0094b46840b182b955bb6c86ab5926d3fa2f728345cdccec92a50d9dc5113e27b02f759865e3ad5e7dc163b14f38af1e02250d0c8c9e07dbac52c

        • C:\Users\Admin\AppData\Local\babf1579-8b25-4222-a2c4-36b35136292c\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
          Filesize

          669KB

          MD5

          ead18f3a909685922d7213714ea9a183

          SHA1

          1270bd7fd62acc00447b30f066bb23f4745869bf

          SHA256

          5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18

          SHA512

          6e532d9c3d186e4dac38823ae9152056346e283613f0caf088b21a1b3e5f4f6cf3bad8c407168b1072895a386e3be0b8c11ad1cb326d3d3ff0eb8562052def91

        • memory/2788-39-0x0000000000510000-0x0000000000610000-memory.dmp
          Filesize

          1024KB

        • memory/2788-40-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/2788-45-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/2788-46-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/2788-34-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/3692-36-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/3692-26-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/3692-48-0x0000000000700000-0x0000000000800000-memory.dmp
          Filesize

          1024KB

        • memory/3692-33-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/3692-32-0x0000000000700000-0x0000000000800000-memory.dmp
          Filesize

          1024KB

        • memory/3728-25-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/3728-21-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/3728-24-0x0000000000520000-0x0000000000620000-memory.dmp
          Filesize

          1024KB

        • memory/3728-12-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/3728-15-0x0000000000520000-0x0000000000620000-memory.dmp
          Filesize

          1024KB

        • memory/3728-16-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/3728-22-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/4388-37-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/4388-35-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/4388-23-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/4388-30-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/4388-42-0x00000000004D0000-0x00000000005D0000-memory.dmp
          Filesize

          1024KB

        • memory/4388-29-0x00000000004D0000-0x00000000005D0000-memory.dmp
          Filesize

          1024KB

        • memory/4388-47-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/4456-0-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/4456-13-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/4456-3-0x0000000000400000-0x00000000004A9000-memory.dmp
          Filesize

          676KB

        • memory/4456-2-0x0000000000700000-0x0000000000800000-memory.dmp
          Filesize

          1024KB