Analysis

  • max time kernel
    149s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    07/11/2022, 13:03

General

  • Target

    5433d7c1dc507dd98fd0ef8811b08fdef4220a728f141331a039f31b2058a34a.exe

  • Size

    612KB

  • MD5

    0d42a14f0381d2c190fd55765285ea4d

  • SHA1

    9ee8cf590a2f7b1cd8d6ee472aa673d52afcf04c

  • SHA256

    5433d7c1dc507dd98fd0ef8811b08fdef4220a728f141331a039f31b2058a34a

  • SHA512

    f9608ac10b9a9c4c67ec4cb47c4afbb951f3f3c2e9fc814950a30e01bbd12ab0552c8c43405bb82137f56cae919590f163c1eef713ecd2eaf3d4f6bafeb3f3a7

  • SSDEEP

    12288:rJ72o+xixStQ6nXiINpopakmtCiiFgvrv3K:X+xix+Q6nXiIUyFvrv3K

Malware Config

Signatures

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

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

  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5433d7c1dc507dd98fd0ef8811b08fdef4220a728f141331a039f31b2058a34a.exe
    "C:\Users\Admin\AppData\Local\Temp\5433d7c1dc507dd98fd0ef8811b08fdef4220a728f141331a039f31b2058a34a.exe"
    1⤵
    • Adds policy Run key to start application
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1896
    • C:\Windows\SysWOW64\fdBth4.exe
      C:\Windows\SysWOW64\fdBth4.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:580
    • C:\Windows\SysWOW64\cmd.exe
      /c C:\Users\Admin\AppData\Local\Temp\~unins4095.bat "C:\Users\Admin\AppData\Local\Temp\5433d7c1dc507dd98fd0ef8811b08fdef4220a728f141331a039f31b2058a34a.exe"
      2⤵
      • Deletes itself
      PID:1700

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\~unins4095.bat

    Filesize

    49B

    MD5

    9e0a2f5ab30517809b95a1ff1dd98c53

    SHA1

    5c1eefdf10e67d1e9216e2e3f5e92352d583c9ce

    SHA256

    97ac9fee75a1f7b63b3115e9c4fb9dda80b1caba26d2fb51325670dee261fe32

    SHA512

    e959cc1fd48fb1cccf135a697924c775a3812bab211fc7f9b00c5a9d617261d84c5d6f7cb548774c1e8f46811b06ca39c5603d0e10cbcb7b805f9abbe49b9b42

  • C:\Windows\SysWOW64\fdBth4.exe

    Filesize

    170KB

    MD5

    b637001a19eade129b0c685fc8470721

    SHA1

    201b3c3ce85e10ab229465baf241bd810d68ca18

    SHA256

    631fc8bb18f6fb0317fd8d79e664f63507cf8c39de6615dd96da6e2e06b24da4

    SHA512

    8f1bc10895c0fc375425468d5ed068b238ac2a8112c9e8995445f6e1e74b4633b3e206339098fe8f0fd55eeb5ebec5bf686bf27dbf18eaa52a37aeae3537b8e2

  • C:\Windows\SysWOW64\fdBth4.exe

    Filesize

    170KB

    MD5

    b637001a19eade129b0c685fc8470721

    SHA1

    201b3c3ce85e10ab229465baf241bd810d68ca18

    SHA256

    631fc8bb18f6fb0317fd8d79e664f63507cf8c39de6615dd96da6e2e06b24da4

    SHA512

    8f1bc10895c0fc375425468d5ed068b238ac2a8112c9e8995445f6e1e74b4633b3e206339098fe8f0fd55eeb5ebec5bf686bf27dbf18eaa52a37aeae3537b8e2

  • \Windows\SysWOW64\fdBth4.exe

    Filesize

    170KB

    MD5

    b637001a19eade129b0c685fc8470721

    SHA1

    201b3c3ce85e10ab229465baf241bd810d68ca18

    SHA256

    631fc8bb18f6fb0317fd8d79e664f63507cf8c39de6615dd96da6e2e06b24da4

    SHA512

    8f1bc10895c0fc375425468d5ed068b238ac2a8112c9e8995445f6e1e74b4633b3e206339098fe8f0fd55eeb5ebec5bf686bf27dbf18eaa52a37aeae3537b8e2

  • memory/580-72-0x0000000074420000-0x00000000749CB000-memory.dmp

    Filesize

    5.7MB

  • memory/580-70-0x0000000074420000-0x00000000749CB000-memory.dmp

    Filesize

    5.7MB

  • memory/1896-58-0x00000000004A0000-0x0000000000546000-memory.dmp

    Filesize

    664KB

  • memory/1896-62-0x00000000004A1000-0x0000000000503000-memory.dmp

    Filesize

    392KB

  • memory/1896-54-0x00000000759F1000-0x00000000759F3000-memory.dmp

    Filesize

    8KB

  • memory/1896-60-0x0000000000310000-0x0000000000355000-memory.dmp

    Filesize

    276KB

  • memory/1896-55-0x00000000004A0000-0x0000000000546000-memory.dmp

    Filesize

    664KB

  • memory/1896-61-0x0000000000503000-0x0000000000545000-memory.dmp

    Filesize

    264KB

  • memory/1896-71-0x00000000004A1000-0x0000000000503000-memory.dmp

    Filesize

    392KB

  • memory/1896-59-0x00000000004A0000-0x0000000000546000-memory.dmp

    Filesize

    664KB

  • memory/1896-73-0x00000000004A1000-0x0000000000503000-memory.dmp

    Filesize

    392KB