Analysis

  • max time kernel
    148s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 01:04

General

  • Target

    73bd58a5541532aff0692432c0d7cfc91ab8bbe60c49e6d1b5a5f22bbe6771db.exe

  • Size

    88KB

  • MD5

    0870eae11b4cd70716cfdd010e800b11

  • SHA1

    4cf6be511a020f096580cb641868f84e1f56f8ca

  • SHA256

    73bd58a5541532aff0692432c0d7cfc91ab8bbe60c49e6d1b5a5f22bbe6771db

  • SHA512

    4524abbcb7a918c74c2139f4791a605fd13b3f57c1133225fb4d7e981de1ca08fd3a8aced294a71c4e802db38da22358bb33f0e70c01f5208b934a13c413ac77

  • SSDEEP

    1536:09t/yuWliX2ZqEulssTvCfsNO5YHAwXC5apqS1sb8DyxaA9vMeC5wQ:039EuWsTqfsNdHL83SjDxB

Score
10/10

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 2 IoCs
  • Executes dropped EXE 2 IoCs
  • UPX packed file 7 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\73bd58a5541532aff0692432c0d7cfc91ab8bbe60c49e6d1b5a5f22bbe6771db.exe
    "C:\Users\Admin\AppData\Local\Temp\73bd58a5541532aff0692432c0d7cfc91ab8bbe60c49e6d1b5a5f22bbe6771db.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:864
    • C:\Users\Admin\AppData\Local\Temp\73bd58a5541532aff0692432c0d7cfc91ab8bbe60c49e6d1b5a5f22bbe6771db.exe
      "C:\Users\Admin\AppData\Local\Temp\73bd58a5541532aff0692432c0d7cfc91ab8bbe60c49e6d1b5a5f22bbe6771db.exe"
      2⤵
      • Modifies firewall policy service
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1756
      • C:\Users\Admin\M-8597378998674567\winmgr.exe
        C:\Users\Admin\M-8597378998674567\winmgr.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1364
        • C:\Users\Admin\M-8597378998674567\winmgr.exe
          C:\Users\Admin\M-8597378998674567\winmgr.exe
          4⤵
          • Executes dropped EXE
          PID:820

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\M-8597378998674567\winmgr.exe
    Filesize

    88KB

    MD5

    0870eae11b4cd70716cfdd010e800b11

    SHA1

    4cf6be511a020f096580cb641868f84e1f56f8ca

    SHA256

    73bd58a5541532aff0692432c0d7cfc91ab8bbe60c49e6d1b5a5f22bbe6771db

    SHA512

    4524abbcb7a918c74c2139f4791a605fd13b3f57c1133225fb4d7e981de1ca08fd3a8aced294a71c4e802db38da22358bb33f0e70c01f5208b934a13c413ac77

  • C:\Users\Admin\M-8597378998674567\winmgr.exe
    Filesize

    88KB

    MD5

    0870eae11b4cd70716cfdd010e800b11

    SHA1

    4cf6be511a020f096580cb641868f84e1f56f8ca

    SHA256

    73bd58a5541532aff0692432c0d7cfc91ab8bbe60c49e6d1b5a5f22bbe6771db

    SHA512

    4524abbcb7a918c74c2139f4791a605fd13b3f57c1133225fb4d7e981de1ca08fd3a8aced294a71c4e802db38da22358bb33f0e70c01f5208b934a13c413ac77

  • \Users\Admin\M-8597378998674567\winmgr.exe
    Filesize

    88KB

    MD5

    0870eae11b4cd70716cfdd010e800b11

    SHA1

    4cf6be511a020f096580cb641868f84e1f56f8ca

    SHA256

    73bd58a5541532aff0692432c0d7cfc91ab8bbe60c49e6d1b5a5f22bbe6771db

    SHA512

    4524abbcb7a918c74c2139f4791a605fd13b3f57c1133225fb4d7e981de1ca08fd3a8aced294a71c4e802db38da22358bb33f0e70c01f5208b934a13c413ac77

  • memory/820-92-0x0000000000400000-0x000000000040D000-memory.dmp
    Filesize

    52KB

  • memory/820-91-0x0000000000400000-0x000000000040D000-memory.dmp
    Filesize

    52KB

  • memory/820-86-0x00000000004069F6-mapping.dmp
  • memory/864-55-0x0000000075141000-0x0000000075143000-memory.dmp
    Filesize

    8KB

  • memory/864-54-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/864-67-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/1364-89-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/1364-74-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/1364-72-0x0000000000000000-mapping.dmp
  • memory/1756-62-0x0000000000400000-0x000000000040D000-memory.dmp
    Filesize

    52KB

  • memory/1756-70-0x0000000000400000-0x000000000040D000-memory.dmp
    Filesize

    52KB

  • memory/1756-69-0x0000000000400000-0x000000000040D000-memory.dmp
    Filesize

    52KB

  • memory/1756-66-0x0000000000400000-0x000000000040D000-memory.dmp
    Filesize

    52KB

  • memory/1756-65-0x00000000004069F6-mapping.dmp
  • memory/1756-64-0x0000000000400000-0x000000000040D000-memory.dmp
    Filesize

    52KB

  • memory/1756-63-0x0000000000400000-0x000000000040D000-memory.dmp
    Filesize

    52KB

  • memory/1756-61-0x0000000000400000-0x000000000040D000-memory.dmp
    Filesize

    52KB

  • memory/1756-59-0x0000000000400000-0x000000000040D000-memory.dmp
    Filesize

    52KB

  • memory/1756-56-0x0000000000400000-0x000000000040D000-memory.dmp
    Filesize

    52KB