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Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    01/12/2022, 03:11

General

  • Target

    74e15760764f5a20bc3ad136da03870d5d98e0e164935b7533492a1a4d866ca4.exe

  • Size

    427KB

  • MD5

    c71a4fb9bdca2711867b828d40142db0

  • SHA1

    4417d5d471455a8959d13b480db4124780056535

  • SHA256

    74e15760764f5a20bc3ad136da03870d5d98e0e164935b7533492a1a4d866ca4

  • SHA512

    f1ffeabd6c48602b8b8a6a4e07d7472472ffb21179369e5296ae9f636761286ff81406f14e6d17c0dd6d4f0337f1f4f9379208523c8973d6673169c09ef40226

  • SSDEEP

    12288:xDA2PW7GdWlT3VWgWpsR3+31/9pbMcaJmpvHtAburqwr/:5Au+C0rVz3R3CZ/Ta8NAburqu/

Score
10/10

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 8 IoCs
  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 4 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • UPX packed file 5 IoCs

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

  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 8 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies registry key 1 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\74e15760764f5a20bc3ad136da03870d5d98e0e164935b7533492a1a4d866ca4.exe
    "C:\Users\Admin\AppData\Local\Temp\74e15760764f5a20bc3ad136da03870d5d98e0e164935b7533492a1a4d866ca4.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:368
    • C:\Users\Admin\AppData\Local\Temp\xgh253D.tmp
      C:\Users\Admin\AppData\Local\Temp\xgh253D.tmp
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1124
      • C:\Users\Admin\AppData\Local\Temp\xgh253D.tmp
        C:\Users\Admin\AppData\Local\Temp\xgh253D.tmp
        3⤵
        • Executes dropped EXE
        PID:896
      • C:\Users\Admin\AppData\Local\Temp\6r42B36.tmp
        C:\Users\Admin\AppData\Local\Temp\6r42B36.tmp "C:\Users\Admin\AppData\Local\Temp\74e15760764f5a20bc3ad136da03870d5d98e0e164935b7533492a1a4d866ca4.exe" 3 update update
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        PID:952
      • C:\Users\Admin\AppData\Local\Temp\explorer.exe
        C:\Users\Admin\AppData\Local\Temp\explorer.exe
        3⤵
        • Adds policy Run key to start application
        • Executes dropped EXE
        • Modifies Installed Components in the registry
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:840
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1956
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
            5⤵
            • Modifies firewall policy service
            • Modifies registry key
            PID:1804
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Local\Temp\explorer.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\explorer.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:984
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Local\Temp\explorer.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\explorer.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • Modifies registry key
            PID:1480
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1456
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
            5⤵
            • Modifies firewall policy service
            • Modifies registry key
            PID:888
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\microsoft\nalax.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\microsoft\nalax.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:560
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\microsoft\nalax.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\microsoft\nalax.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • Modifies registry key
            PID:1628

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\6r42B36.tmp

    Filesize

    34KB

    MD5

    91e85bdf8f3e7df5c243126fda9122a3

    SHA1

    8158cf5797085e91fda1edd0fb9b5890a4178899

    SHA256

    53cce0fd9285ec1696922d0da8f249ffad078a3afbab349bf864209ae06c2230

    SHA512

    c1327669fd1279d0f053f8eb4d7304002c23cdf4b9641e8eb1041fedef0267430afa211be72297ef1e220c2f332a00b533219662cda4f4833303ffb79fc65eae

  • C:\Users\Admin\AppData\Local\Temp\explorer.exe

    Filesize

    40KB

    MD5

    3ede86e285c7ace4723a1bfe1c9517f0

    SHA1

    bf690ffc66dc6f225475608883a2991295d271b4

    SHA256

    24357e47f97dafe2df9e0870cbe9061f167450fdac239ffa0f3f0d2539050ff1

    SHA512

    34507944688b2f8f0ea74933cb0c70f97940aa609a8d0e359c54a6dc9097d9bf607b9aad5d3c6c115e0576ee8dea8e12baf3a98630666f66dae5a3a2b1e92319

  • C:\Users\Admin\AppData\Local\Temp\xgh253D.tmp

    Filesize

    75KB

    MD5

    39b746ac9c4b1dd90d7423b68a769746

    SHA1

    f791b078e79f1388b00b13c2c99969b22ea5c9f6

    SHA256

    10c9ee25bdc27e6b2acbdaf9c50289a8f3fcd5e04eafbe789f1e4b652fcc2344

    SHA512

    c163942bab20484a4321cafa72d5632644da14f5f85283838763e35a7114b6b0833e90761bd2d280a0797f7fa059ab345a8f803167d06197c5f374835b235206

  • C:\Users\Admin\AppData\Local\Temp\xgh253D.tmp

    Filesize

    75KB

    MD5

    39b746ac9c4b1dd90d7423b68a769746

    SHA1

    f791b078e79f1388b00b13c2c99969b22ea5c9f6

    SHA256

    10c9ee25bdc27e6b2acbdaf9c50289a8f3fcd5e04eafbe789f1e4b652fcc2344

    SHA512

    c163942bab20484a4321cafa72d5632644da14f5f85283838763e35a7114b6b0833e90761bd2d280a0797f7fa059ab345a8f803167d06197c5f374835b235206

  • \Users\Admin\AppData\Local\Temp\6r42B36.tmp

    Filesize

    34KB

    MD5

    91e85bdf8f3e7df5c243126fda9122a3

    SHA1

    8158cf5797085e91fda1edd0fb9b5890a4178899

    SHA256

    53cce0fd9285ec1696922d0da8f249ffad078a3afbab349bf864209ae06c2230

    SHA512

    c1327669fd1279d0f053f8eb4d7304002c23cdf4b9641e8eb1041fedef0267430afa211be72297ef1e220c2f332a00b533219662cda4f4833303ffb79fc65eae

  • \Users\Admin\AppData\Local\Temp\explorer.exe

    Filesize

    40KB

    MD5

    3ede86e285c7ace4723a1bfe1c9517f0

    SHA1

    bf690ffc66dc6f225475608883a2991295d271b4

    SHA256

    24357e47f97dafe2df9e0870cbe9061f167450fdac239ffa0f3f0d2539050ff1

    SHA512

    34507944688b2f8f0ea74933cb0c70f97940aa609a8d0e359c54a6dc9097d9bf607b9aad5d3c6c115e0576ee8dea8e12baf3a98630666f66dae5a3a2b1e92319

  • \Users\Admin\AppData\Local\Temp\xgh253D.tmp

    Filesize

    75KB

    MD5

    39b746ac9c4b1dd90d7423b68a769746

    SHA1

    f791b078e79f1388b00b13c2c99969b22ea5c9f6

    SHA256

    10c9ee25bdc27e6b2acbdaf9c50289a8f3fcd5e04eafbe789f1e4b652fcc2344

    SHA512

    c163942bab20484a4321cafa72d5632644da14f5f85283838763e35a7114b6b0833e90761bd2d280a0797f7fa059ab345a8f803167d06197c5f374835b235206

  • \Users\Admin\AppData\Local\Temp\xgh253D.tmp

    Filesize

    75KB

    MD5

    39b746ac9c4b1dd90d7423b68a769746

    SHA1

    f791b078e79f1388b00b13c2c99969b22ea5c9f6

    SHA256

    10c9ee25bdc27e6b2acbdaf9c50289a8f3fcd5e04eafbe789f1e4b652fcc2344

    SHA512

    c163942bab20484a4321cafa72d5632644da14f5f85283838763e35a7114b6b0833e90761bd2d280a0797f7fa059ab345a8f803167d06197c5f374835b235206

  • memory/368-54-0x0000000076401000-0x0000000076403000-memory.dmp

    Filesize

    8KB

  • memory/840-68-0x0000000000400000-0x0000000000473000-memory.dmp

    Filesize

    460KB

  • memory/840-72-0x0000000000400000-0x0000000000473000-memory.dmp

    Filesize

    460KB

  • memory/840-73-0x0000000000400000-0x0000000000473000-memory.dmp

    Filesize

    460KB

  • memory/840-76-0x0000000000400000-0x0000000000473000-memory.dmp

    Filesize

    460KB

  • memory/840-87-0x0000000000400000-0x0000000000473000-memory.dmp

    Filesize

    460KB

  • memory/840-66-0x0000000000400000-0x0000000000473000-memory.dmp

    Filesize

    460KB