Overview

overview

8

Static

static

73c230f147...bf.exe

windows7-x64

8

73c230f147...bf.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 04:11

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General

  • Target

    73c230f1470311dd493b8be2c1196632d701c1a8c3ce6e759b902bb6ca7684bf.exe

  • Size

    255KB

  • MD5

    82a6a151fcb82c69cd78890ea7e7d547

  • SHA1

    99d8243705172092dac4584c67b3b81753b7bde6

  • SHA256

    73c230f1470311dd493b8be2c1196632d701c1a8c3ce6e759b902bb6ca7684bf

  • SHA512

    995b170bc39c763215257b8b41e10024a11dc7ff493b76eb1986e6a90a056eef5721c7c3a5a0ee0bc164de627219e4d2387086185ed4c95a4733ea77e8d52605

  • SSDEEP

    6144:7UnITMpSph0lMqqgWoDhujqcQQbxJhVGvkVbOcH4CIMf:7CQMY07qgWo6VVGvkVLAK

Score
8/10
persistenceupx

Malware Config

Signatures

  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • Registers COM server for autorun 1 TTPs 4 IoCs
    persistence
  • UPX packed file 6 IoCs

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

    upx
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 3 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 58 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\73c230f1470311dd493b8be2c1196632d701c1a8c3ce6e759b902bb6ca7684bf.exe
    "C:\Users\Admin\AppData\Local\Temp\73c230f1470311dd493b8be2c1196632d701c1a8c3ce6e759b902bb6ca7684bf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2268
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Roaming\Carefree\plugin.dat"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3604
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Users\Admin\AppData\Roaming\Carefree\plugin.dat"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Modifies registry class
        PID:4796
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies Installed Components in the registry
    • Loads dropped DLL
    • Enumerates connected drives
    • Checks SCSI registry key(s)
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    PID:2184
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:5100
  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
    1⤵
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:1516

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Carefree\plugin.dat
    Filesize

    95KB

    MD5

    6004bb844df52543553c88870a2bf0e3

    SHA1

    a1eb0e9f4ef8ccf99c77a577976bbeb1a93c6d2a

    SHA256

    0896d01b1feca7536047ea57866343c402379bbdbbe0c90362e3476b0ec1b228

    SHA512

    eee27a7cfc8ca1178c4f06d1ced05818641a4b352980066bb2909105d08d9e2c1ba19f441610bffe68c3ddce6333dc8513ea8e88e723dc82137f93b92c33ddcc

    Download Submit

  • C:\Users\Admin\AppData\Roaming\Carefree\plugin.dat
    Filesize

    95KB

    MD5

    6004bb844df52543553c88870a2bf0e3

    SHA1

    a1eb0e9f4ef8ccf99c77a577976bbeb1a93c6d2a

    SHA256

    0896d01b1feca7536047ea57866343c402379bbdbbe0c90362e3476b0ec1b228

    SHA512

    eee27a7cfc8ca1178c4f06d1ced05818641a4b352980066bb2909105d08d9e2c1ba19f441610bffe68c3ddce6333dc8513ea8e88e723dc82137f93b92c33ddcc

    Download Submit

  • C:\Users\Admin\AppData\Roaming\Carefree\plugin.dat
    Filesize

    95KB

    MD5

    6004bb844df52543553c88870a2bf0e3

    SHA1

    a1eb0e9f4ef8ccf99c77a577976bbeb1a93c6d2a

    SHA256

    0896d01b1feca7536047ea57866343c402379bbdbbe0c90362e3476b0ec1b228

    SHA512

    eee27a7cfc8ca1178c4f06d1ced05818641a4b352980066bb2909105d08d9e2c1ba19f441610bffe68c3ddce6333dc8513ea8e88e723dc82137f93b92c33ddcc

    Download Submit

  • C:\Users\Admin\AppData\Roaming\Carefree\plugin.dat
    Filesize

    95KB

    MD5

    6004bb844df52543553c88870a2bf0e3

    SHA1

    a1eb0e9f4ef8ccf99c77a577976bbeb1a93c6d2a

    SHA256

    0896d01b1feca7536047ea57866343c402379bbdbbe0c90362e3476b0ec1b228

    SHA512

    eee27a7cfc8ca1178c4f06d1ced05818641a4b352980066bb2909105d08d9e2c1ba19f441610bffe68c3ddce6333dc8513ea8e88e723dc82137f93b92c33ddcc

    Download Submit

  • C:\Users\Admin\AppData\Roaming\SogouPinyin.local
    Filesize

    89B

    MD5

    d416107465652fba144f226956ad2025

    SHA1

    b30359a7fba22f95e7d64c84ea2ee22531bed0eb

    SHA256

    b51c571730c0996c0b2118ef4006c9e39ed3e15a7e8e7ce021bcc6b9a9bb36b7

    SHA512

    16b753fb39363b9e04249483743b97a9fd5a4ddc2bcafda0bb51c5496ec2e92f83162a01905b6057108adc1340537bfc09c7b6ade15e16798fd4e050412ce874

    Download Submit

  • memory/1516-272-0x0000021FD0F28000-0x0000021FD0F2C000-memory.dmp

    Filesize

    16KB

    Download

  • memory/1516-271-0x0000021FD0F28000-0x0000021FD0F2C000-memory.dmp

    Filesize

    16KB

    Download

  • memory/1516-281-0x0000021FD0F2C000-0x0000021FD0F2F000-memory.dmp

    Filesize

    12KB

    Download

  • memory/1516-280-0x0000021FD0F2C000-0x0000021FD0F2F000-memory.dmp

    Filesize

    12KB

    Download

  • memory/1516-278-0x0000021FD0F2C000-0x0000021FD0F2F000-memory.dmp

    Filesize

    12KB

    Download

  • memory/1516-149-0x0000021FCCD30000-0x0000021FCCD38000-memory.dmp

    Filesize

    32KB

    Download

  • memory/1516-151-0x0000021FD0EC0000-0x0000021FD0EE0000-memory.dmp

    Filesize

    128KB

    Download

  • memory/1516-155-0x0000021FE0F20000-0x0000021FE1020000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/1516-157-0x0000021FD05E0000-0x0000021FD0600000-memory.dmp

    Filesize

    128KB

    Download

  • memory/1516-279-0x0000021FD0F2C000-0x0000021FD0F2F000-memory.dmp

    Filesize

    12KB

    Download

  • memory/1516-275-0x0000021FD0F28000-0x0000021FD0F2C000-memory.dmp

    Filesize

    16KB

    Download

  • memory/1516-273-0x0000021FD0F28000-0x0000021FD0F2C000-memory.dmp

    Filesize

    16KB

    Download

  • memory/1516-274-0x0000021FD0F28000-0x0000021FD0F2C000-memory.dmp

    Filesize

    16KB

    Download

  • memory/2184-148-0x00007FFC04AF0000-0x00007FFC04B5D000-memory.dmp

    Filesize

    436KB

    Download

  • memory/2184-140-0x00007FFC04AF0000-0x00007FFC04B5D000-memory.dmp

    Filesize

    436KB

    Download

  • memory/3604-132-0x0000000000000000-mapping.dmp

    Download

  • memory/3604-137-0x0000000001370000-0x00000000013DD000-memory.dmp

    Filesize

    436KB

    Download

  • memory/4796-135-0x0000000000000000-mapping.dmp

    Download