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Analysis

  • max time kernel
    144s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    05/11/2023, 07:35

General

  • Target

    NEAS.ac9958e4a582ae514e4487ec9d273350.exe

  • Size

    228KB

  • MD5

    ac9958e4a582ae514e4487ec9d273350

  • SHA1

    a15765543d2c078975823fcebe88cd4b763ad76d

  • SHA256

    8668458c8a828b9a801383c149582c15db640d4eb5df60702db207dd2de26f25

  • SHA512

    aa512f6d6e898b7a28a5d4130efb3e8e9028dac9698b7b86b01fa0c72af399a10e0341c90123a9692b51dd22b7b2942692cd0b67d2640c4e9b508f7292dd57e8

  • SSDEEP

    3072:tIgcTTjAq4wbnBjvxc8287Gw8OUtyjMhTdglu4SUvmre:teAq4wb97KyjsTGxvn

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 9 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.ac9958e4a582ae514e4487ec9d273350.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.ac9958e4a582ae514e4487ec9d273350.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2316
    • C:\Users\Admin\appdata\local\temp\taskserf.exe
      "C:\Users\Admin\appdata\local\temp\taskserf.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:3056
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2316 -s 492
      2⤵
      • Program crash
      PID:3028

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    228KB

    MD5

    92243b455d362bc982e08e5c68739933

    SHA1

    8fb624e123a69fd436cd68951e33f42dd7de4bcb

    SHA256

    a39847886fe37f112882bcba96f084db8f17b6ad089f63233961a7d1833c91df

    SHA512

    917dbc1c330d97317bb37cfd6b560d016eada3947086f2f010b20c1f863e804cfa0bac82eb9bdf4bb6b44fa4a8bc182b3f879dc3e35a18805243aa43bb02aed7

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

    Filesize

    228KB

    MD5

    92243b455d362bc982e08e5c68739933

    SHA1

    8fb624e123a69fd436cd68951e33f42dd7de4bcb

    SHA256

    a39847886fe37f112882bcba96f084db8f17b6ad089f63233961a7d1833c91df

    SHA512

    917dbc1c330d97317bb37cfd6b560d016eada3947086f2f010b20c1f863e804cfa0bac82eb9bdf4bb6b44fa4a8bc182b3f879dc3e35a18805243aa43bb02aed7

  • C:\Users\Admin\appdata\local\temp\taskserf.exe

    Filesize

    228KB

    MD5

    92243b455d362bc982e08e5c68739933

    SHA1

    8fb624e123a69fd436cd68951e33f42dd7de4bcb

    SHA256

    a39847886fe37f112882bcba96f084db8f17b6ad089f63233961a7d1833c91df

    SHA512

    917dbc1c330d97317bb37cfd6b560d016eada3947086f2f010b20c1f863e804cfa0bac82eb9bdf4bb6b44fa4a8bc182b3f879dc3e35a18805243aa43bb02aed7

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

    Filesize

    228KB

    MD5

    92243b455d362bc982e08e5c68739933

    SHA1

    8fb624e123a69fd436cd68951e33f42dd7de4bcb

    SHA256

    a39847886fe37f112882bcba96f084db8f17b6ad089f63233961a7d1833c91df

    SHA512

    917dbc1c330d97317bb37cfd6b560d016eada3947086f2f010b20c1f863e804cfa0bac82eb9bdf4bb6b44fa4a8bc182b3f879dc3e35a18805243aa43bb02aed7

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

    Filesize

    228KB

    MD5

    92243b455d362bc982e08e5c68739933

    SHA1

    8fb624e123a69fd436cd68951e33f42dd7de4bcb

    SHA256

    a39847886fe37f112882bcba96f084db8f17b6ad089f63233961a7d1833c91df

    SHA512

    917dbc1c330d97317bb37cfd6b560d016eada3947086f2f010b20c1f863e804cfa0bac82eb9bdf4bb6b44fa4a8bc182b3f879dc3e35a18805243aa43bb02aed7

  • memory/2316-0-0x0000000000400000-0x000000000043B000-memory.dmp

    Filesize

    236KB

  • memory/2316-11-0x00000000025E0000-0x000000000261B000-memory.dmp

    Filesize

    236KB

  • memory/2316-15-0x0000000000400000-0x000000000043B000-memory.dmp

    Filesize

    236KB

  • memory/2316-16-0x00000000025E0000-0x000000000261B000-memory.dmp

    Filesize

    236KB

  • memory/2316-17-0x00000000025E0000-0x000000000261B000-memory.dmp

    Filesize

    236KB

  • memory/3056-13-0x0000000000400000-0x000000000043B000-memory.dmp

    Filesize

    236KB

  • memory/3056-18-0x0000000000400000-0x000000000043B000-memory.dmp

    Filesize

    236KB