Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    31-12-2023 04:24

General

  • Target

    280c3da5ea65c959067f8ab553037370.exe

  • Size

    320KB

  • MD5

    280c3da5ea65c959067f8ab553037370

  • SHA1

    7941c2b2118fd30c2b8c65a1beab08d9331203c9

  • SHA256

    c390e62943f6c3cd8a21a5aed7b9d8528b30cae4bad6a5ba26f817d9bbf68d5f

  • SHA512

    628bf2984f38a82cda34f4b1afbe6f1a810201a29b9ce2e0f6a9daee31b7a86fa60dd114888d3c0f77cb10d5a539b2cc0b255c29abeb58a13613f4fdc0447041

  • SSDEEP

    6144:ym/o/vvofih8jWlw7WtoPkvVOfzUE8uoglOs5WY94/JzZwLZ5rLLVIqxE+1qg:5o/UWIkNOfzUEQgFGJNmjKqxE+1

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Modifies Installed Components in the registry 2 TTPs 2 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 21 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Modifies WinLogon 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 10 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\280c3da5ea65c959067f8ab553037370.exe
    "C:\Users\Admin\AppData\Local\Temp\280c3da5ea65c959067f8ab553037370.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Users\Admin\AppData\Local\Temp\280c3da5ea65c959067f8ab553037370.exe
      C:\Users\Admin\AppData\Local\Temp\280c3da5ea65c959067f8ab553037370.exe
      2⤵
      • Modifies WinLogon for persistence
      • Disables RegEdit via registry modification
      • Modifies Installed Components in the registry
      • Loads dropped DLL
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Modifies WinLogon
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:2512

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

4
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

2
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

4
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

2
T1547.004

Defense Evasion

Modify Registry

5
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\53STNJLW\errorPageStrings[2]
    Filesize

    2KB

    MD5

    e3e4a98353f119b80b323302f26b78fa

    SHA1

    20ee35a370cdd3a8a7d04b506410300fd0a6a864

    SHA256

    9466d620dc57835a2475f8f71e304f54aee7160e134ba160baae0f19e5e71e66

    SHA512

    d8e4d73c76804a5abebd5dbc3a86dcdb6e73107b873175a8de67332c113fb7c4899890bf7972e467866fa4cd100a7e2a10a770e5a9c41cbf23b54351b771dcee

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\53STNJLW\httpErrorPagesScripts[1]
    Filesize

    8KB

    MD5

    3f57b781cb3ef114dd0b665151571b7b

    SHA1

    ce6a63f996df3a1cccb81720e21204b825e0238c

    SHA256

    46e019fa34465f4ed096a9665d1827b54553931ad82e98be01edb1ddbc94d3ad

    SHA512

    8cbf4ef582332ae7ea605f910ad6f8a4bc28513482409fa84f08943a72cac2cf0fa32b6af4c20c697e1fac2c5ba16b5a64a23af0c11eefbf69625b8f9f90c8fa

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\HJ0GGVIM\dnserrordiagoff[1]
    Filesize

    1KB

    MD5

    47f581b112d58eda23ea8b2e08cf0ff0

    SHA1

    6ec1df5eaec1439573aef0fb96dabfc953305e5b

    SHA256

    b1c947d00db5fce43314c56c663dbeae0ffa13407c9c16225c17ccefc3afa928

    SHA512

    187383eef3d646091e9f68eff680a11c7947b3d9b54a78cc6de4a04629d7037e9c97673ac054a6f1cf591235c110ca181a6b69ecba0e5032168f56f4486fff92

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\M2VO416U\NewErrorPageTemplate[1]
    Filesize

    1KB

    MD5

    cdf81e591d9cbfb47a7f97a2bcdb70b9

    SHA1

    8f12010dfaacdecad77b70a3e781c707cf328496

    SHA256

    204d95c6fb161368c795bb63e538fe0b11f9e406494bb5758b3b0d60c5f651bd

    SHA512

    977dcc2c6488acaf0e5970cef1a7a72c9f9dc6bb82da54f057e0853c8e939e4ab01b163eb7a5058e093a8bc44ecad9d06880fdc883e67e28ac67fee4d070a4cc

  • \Users\Admin\AppData\Local\Temp\dwlGina3.dll
    Filesize

    93KB

    MD5

    1173123287198dce1eb831f04e28352c

    SHA1

    39d650f4297c990a7ffaa7dc3b6d0ef903c9bd14

    SHA256

    65d4582e135c774d9c827ae08de8b77f199ee934f13d1a0537df4f5d18f590ba

    SHA512

    e9fdb6e808b0f3ed850fb364d48609a9726fd41ad138594fc04f8d48d5672aec3aaa76af236f07c4263c053dc539f99009e74491adb03c885190dcce78f0cede

  • memory/2512-59-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-4-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-14-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-15-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-16-0x0000000000220000-0x0000000000221000-memory.dmp
    Filesize

    4KB

  • memory/2512-11-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-20-0x0000000000550000-0x000000000056C000-memory.dmp
    Filesize

    112KB

  • memory/2512-50-0x0000000000550000-0x000000000056C000-memory.dmp
    Filesize

    112KB

  • memory/2512-49-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-9-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2512-2-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-6-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-12-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-64-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-66-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-67-0x0000000000220000-0x0000000000221000-memory.dmp
    Filesize

    4KB

  • memory/2512-76-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-86-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-100-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-114-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-124-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-138-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-148-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-186-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-196-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

  • memory/2512-206-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB