Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    24-03-2023 10:00

General

  • Target

    c1b465d96c0541a5dc8e95a7bfd96e15.exe

  • Size

    266KB

  • MD5

    c1b465d96c0541a5dc8e95a7bfd96e15

  • SHA1

    9971ee23a2b802c3b1a03a3a8df686aab28e263c

  • SHA256

    db70988416dd0d9af06715f9f9c6cf77be3f6bf629cba4bed9be82ea4fbf46c1

  • SHA512

    ce014c7e041626c31c4dd1dcc3bf2de5a735768965dabbc82dd021445b0265d8679d4d859cb803b2ea8a3a6f08be7ae0e70047e0367150ab623b5e91ca16b3aa

  • SSDEEP

    6144:/Ya6uOn/kwfhxmhDcnV6/VMBob43AsvyPggixmLTOG:/YQOMwOWI/VMmbavhmXb

Malware Config

Extracted

Family

formbook

Campaign

poub

Decoy

WY0eksfISzRg4O6c+opnGL6gaw==

moRjn9ExtYi8UmUo+Tya

2vME+GedoxzFnuLXesUoVj4=

EvW4JWJ1NQ8nN3tA3SM=

2mK9efMZMgN1VOs=

8d0jua5b0J6AQEW7

/2cyThOd37DSTYMASDye4Q0t/Vs=

ral+tbIh2KKAQEW7

YLY9jsPtYB/FRmMo+Tya

R1WcElWAMtFxFrVqtZT2ZpIS9xRZNho=

KFXGg/T1pCC9GjrxUPTcjw==

8mMlK5nDwjjPFTP5jMtAtQ0t/Vs=

c7am8nhhlCo=

UW91trZj6dENxuRdpxOvW1Cf

sjOMUcvq6lYJCZEfV4euFzY=

62nBgPjdmWQkmWElww==

64E8JqA1aruSUvw=

NqI1reXpcR+REye0

8+y1oOsbjgSyEhjXUPTcjw==

Rx9by8gNBwN1VOs=

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader payload 5 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 26 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1260
    • C:\Users\Admin\AppData\Local\Temp\c1b465d96c0541a5dc8e95a7bfd96e15.exe
      "C:\Users\Admin\AppData\Local\Temp\c1b465d96c0541a5dc8e95a7bfd96e15.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1268
      • C:\Users\Admin\AppData\Local\Temp\wqtgp.exe
        "C:\Users\Admin\AppData\Local\Temp\wqtgp.exe" C:\Users\Admin\AppData\Local\Temp\euqgzstcbcz.w
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:2024
        • C:\Users\Admin\AppData\Local\Temp\wqtgp.exe
          "C:\Users\Admin\AppData\Local\Temp\wqtgp.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:1492
    • C:\Windows\SysWOW64\systray.exe
      "C:\Windows\SysWOW64\systray.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Drops file in Program Files directory
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1696
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\wqtgp.exe"
        3⤵
          PID:1376
        • C:\Program Files\Mozilla Firefox\Firefox.exe
          "C:\Program Files\Mozilla Firefox\Firefox.exe"
          3⤵
            PID:1120

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Defense Evasion

      Modify Registry

      2
      T1112

      Discovery

      Query Registry

      1
      T1012

      System Information Discovery

      2
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\euqgzstcbcz.w
        Filesize

        5KB

        MD5

        ae38879f45b09ef15b1078ce84b1164a

        SHA1

        448f7f91e4d854ec04dd98ac4b693b9677657e3d

        SHA256

        6ec80512e0a3eed18b6bbee6f569b9261284243a4d98c09f3bb91ea62919ca65

        SHA512

        b12db9ad229f1c023d924266a32a8c5b86819eba5df474d5cfc88a54d6afd397e75c15b910122b1a4aee62e3ffa93205e024d9dc79e7a75e05fdddab1f6fb38d

      • C:\Users\Admin\AppData\Local\Temp\ozhppi.t
        Filesize

        196KB

        MD5

        bdb641f1728b7662b50ed99448e056f5

        SHA1

        449f28991240e498d2be470e9e4e0ecb2b2282f2

        SHA256

        0f4ce083de4f3b0e2374ea87588324dd09f39623e3db3d7d7d9df44efd6f5a73

        SHA512

        960443fc680ba30cd5c0ff6616d693ede13432ab471b53f113ccbd17f29cb7ab6281fa8125a437fc53a4e165220273cb633557175bba4a6bc729f9c851b6b0d0

      • C:\Users\Admin\AppData\Local\Temp\wqtgp.exe
        Filesize

        85KB

        MD5

        48e20333b03443680de6f080d9b59018

        SHA1

        39b254504512bec0a1196de64553a03d043709b0

        SHA256

        c029bda9aa6a3369e55c1988d0bd382f6c9da481dc33df389f776590d53fb286

        SHA512

        6cdfbaa42ca596c58a7a245feac969e769830d4cc3aaabac4ba70b24b5043e567b867b38f476d5114b02e74f4c3fe8d6db018fb8a3f1855467210910ffdaf6ad

      • C:\Users\Admin\AppData\Local\Temp\wqtgp.exe
        Filesize

        85KB

        MD5

        48e20333b03443680de6f080d9b59018

        SHA1

        39b254504512bec0a1196de64553a03d043709b0

        SHA256

        c029bda9aa6a3369e55c1988d0bd382f6c9da481dc33df389f776590d53fb286

        SHA512

        6cdfbaa42ca596c58a7a245feac969e769830d4cc3aaabac4ba70b24b5043e567b867b38f476d5114b02e74f4c3fe8d6db018fb8a3f1855467210910ffdaf6ad

      • C:\Users\Admin\AppData\Local\Temp\wqtgp.exe
        Filesize

        85KB

        MD5

        48e20333b03443680de6f080d9b59018

        SHA1

        39b254504512bec0a1196de64553a03d043709b0

        SHA256

        c029bda9aa6a3369e55c1988d0bd382f6c9da481dc33df389f776590d53fb286

        SHA512

        6cdfbaa42ca596c58a7a245feac969e769830d4cc3aaabac4ba70b24b5043e567b867b38f476d5114b02e74f4c3fe8d6db018fb8a3f1855467210910ffdaf6ad

      • C:\Users\Admin\AppData\Local\Temp\wqtgp.exe
        Filesize

        85KB

        MD5

        48e20333b03443680de6f080d9b59018

        SHA1

        39b254504512bec0a1196de64553a03d043709b0

        SHA256

        c029bda9aa6a3369e55c1988d0bd382f6c9da481dc33df389f776590d53fb286

        SHA512

        6cdfbaa42ca596c58a7a245feac969e769830d4cc3aaabac4ba70b24b5043e567b867b38f476d5114b02e74f4c3fe8d6db018fb8a3f1855467210910ffdaf6ad

      • \Users\Admin\AppData\Local\Temp\wqtgp.exe
        Filesize

        85KB

        MD5

        48e20333b03443680de6f080d9b59018

        SHA1

        39b254504512bec0a1196de64553a03d043709b0

        SHA256

        c029bda9aa6a3369e55c1988d0bd382f6c9da481dc33df389f776590d53fb286

        SHA512

        6cdfbaa42ca596c58a7a245feac969e769830d4cc3aaabac4ba70b24b5043e567b867b38f476d5114b02e74f4c3fe8d6db018fb8a3f1855467210910ffdaf6ad

      • \Users\Admin\AppData\Local\Temp\wqtgp.exe
        Filesize

        85KB

        MD5

        48e20333b03443680de6f080d9b59018

        SHA1

        39b254504512bec0a1196de64553a03d043709b0

        SHA256

        c029bda9aa6a3369e55c1988d0bd382f6c9da481dc33df389f776590d53fb286

        SHA512

        6cdfbaa42ca596c58a7a245feac969e769830d4cc3aaabac4ba70b24b5043e567b867b38f476d5114b02e74f4c3fe8d6db018fb8a3f1855467210910ffdaf6ad

      • \Users\Admin\AppData\Local\Temp\wqtgp.exe
        Filesize

        85KB

        MD5

        48e20333b03443680de6f080d9b59018

        SHA1

        39b254504512bec0a1196de64553a03d043709b0

        SHA256

        c029bda9aa6a3369e55c1988d0bd382f6c9da481dc33df389f776590d53fb286

        SHA512

        6cdfbaa42ca596c58a7a245feac969e769830d4cc3aaabac4ba70b24b5043e567b867b38f476d5114b02e74f4c3fe8d6db018fb8a3f1855467210910ffdaf6ad

      • memory/1260-92-0x0000000004F20000-0x0000000004FEA000-memory.dmp
        Filesize

        808KB

      • memory/1260-78-0x0000000007030000-0x0000000007171000-memory.dmp
        Filesize

        1.3MB

      • memory/1260-72-0x0000000000010000-0x0000000000020000-memory.dmp
        Filesize

        64KB

      • memory/1260-90-0x0000000004F20000-0x0000000004FEA000-memory.dmp
        Filesize

        808KB

      • memory/1260-75-0x0000000006E00000-0x0000000006F49000-memory.dmp
        Filesize

        1.3MB

      • memory/1260-89-0x0000000004F20000-0x0000000004FEA000-memory.dmp
        Filesize

        808KB

      • memory/1492-74-0x0000000000330000-0x0000000000341000-memory.dmp
        Filesize

        68KB

      • memory/1492-77-0x0000000000380000-0x0000000000391000-memory.dmp
        Filesize

        68KB

      • memory/1492-79-0x0000000000400000-0x000000000042C000-memory.dmp
        Filesize

        176KB

      • memory/1492-76-0x0000000000400000-0x000000000042C000-memory.dmp
        Filesize

        176KB

      • memory/1492-73-0x00000000008E0000-0x0000000000BE3000-memory.dmp
        Filesize

        3.0MB

      • memory/1492-68-0x0000000000400000-0x000000000042C000-memory.dmp
        Filesize

        176KB

      • memory/1696-80-0x0000000000A70000-0x0000000000A75000-memory.dmp
        Filesize

        20KB

      • memory/1696-82-0x0000000000A70000-0x0000000000A75000-memory.dmp
        Filesize

        20KB

      • memory/1696-83-0x0000000000080000-0x00000000000AC000-memory.dmp
        Filesize

        176KB

      • memory/1696-84-0x0000000002010000-0x0000000002313000-memory.dmp
        Filesize

        3.0MB

      • memory/1696-85-0x0000000000080000-0x00000000000AC000-memory.dmp
        Filesize

        176KB

      • memory/1696-88-0x00000000008C0000-0x0000000000950000-memory.dmp
        Filesize

        576KB