Analysis

  • max time kernel
    151s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    08-04-2021 07:05

General

  • Target

    Revised Invoice No CU 7035.exe

  • Size

    469KB

  • MD5

    a0b32e96914dfe7d50cc7a56d4939c2f

  • SHA1

    3b3033ac851d71711ea10b263cf2b398833316b7

  • SHA256

    2e10edfbe7c4a7c9220db55d3c6f921262366908277a5483ff0faf5579e194f4

  • SHA512

    ee8f0b1dfefb45ab7188b4bb60bb175a2a71ad58fa1083059f98d81a54d7ec03a63fb0ab9f1897f2d8c9224468a9230b8acb936ac82d54c743e72eab5480508a

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.the-techs.info/chue/

Decoy

wowmovies.today

magentos6.com

bi-nav.com

atlantahawks.sucks

wluabjy.icu

kevableinsights.com

lavidaenaustralia.com

stonermadeapparel.net

sondein.com

cirquedusoleilartist.com

kanjitem.com

tomofalltrades.site

mecanico.guru

tech2020s.com

amesoneco.com

theawfulliar.com

californiaadugurus.com

rentalservicesolutions.com

fsxbhd.club

casino-seo.com

Signatures

  • Formbook

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

  • Formbook Payload 3 IoCs
  • Nirsoft 13 IoCs
  • Executes dropped EXE 4 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 8 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 38 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 11 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1276
    • C:\Users\Admin\AppData\Local\Temp\Revised Invoice No CU 7035.exe
      "C:\Users\Admin\AppData\Local\Temp\Revised Invoice No CU 7035.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1924
      • C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe
        "C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe" /EXEFilename "C:\Windows\System32\sc.exe" /WindowState 0 /CommandLine "stop WinDefend" /StartDirectory "" /RunAs 8 /Run
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1792
        • C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe
          "C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe" /SpecialRun 4101d8 1792
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1704
      • C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe
        "C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe" /EXEFilename "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" /WindowState 0 /CommandLine "rmdir 'C:\ProgramData\Microsoft\Windows Defender' -Recurse" /StartDirectory "" /RunAs 8 /Run
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1652
        • C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe
          "C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe" /SpecialRun 4101d8 1652
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:684
      • C:\Users\Admin\AppData\Local\Temp\Revised Invoice No CU 7035.exe
        "C:\Users\Admin\AppData\Local\Temp\Revised Invoice No CU 7035.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:284
    • C:\Windows\SysWOW64\systray.exe
      "C:\Windows\SysWOW64\systray.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1176
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\Revised Invoice No CU 7035.exe"
        3⤵
        • Deletes itself
        PID:516

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • \Users\Admin\AppData\Local\Temp\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • \Users\Admin\AppData\Local\Temp\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • \Users\Admin\AppData\Local\Temp\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • \Users\Admin\AppData\Local\Temp\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • \Users\Admin\AppData\Local\Temp\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • \Users\Admin\AppData\Local\Temp\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • \Users\Admin\AppData\Local\Temp\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • \Users\Admin\AppData\Local\Temp\AdvancedRun.exe
    MD5

    17fc12902f4769af3a9271eb4e2dacce

    SHA1

    9a4a1581cc3971579574f837e110f3bd6d529dab

    SHA256

    29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

    SHA512

    036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

  • memory/284-33-0x0000000000280000-0x0000000000294000-memory.dmp
    Filesize

    80KB

  • memory/284-29-0x0000000000400000-0x000000000042E000-memory.dmp
    Filesize

    184KB

  • memory/284-32-0x00000000008F0000-0x0000000000BF3000-memory.dmp
    Filesize

    3.0MB

  • memory/284-30-0x000000000041ED80-mapping.dmp
  • memory/516-36-0x0000000000000000-mapping.dmp
  • memory/684-26-0x0000000000000000-mapping.dmp
  • memory/1176-38-0x0000000000080000-0x00000000000AE000-memory.dmp
    Filesize

    184KB

  • memory/1176-37-0x00000000007F0000-0x00000000007F5000-memory.dmp
    Filesize

    20KB

  • memory/1176-35-0x0000000000000000-mapping.dmp
  • memory/1176-39-0x0000000001F20000-0x0000000002223000-memory.dmp
    Filesize

    3.0MB

  • memory/1176-40-0x0000000000720000-0x00000000007B3000-memory.dmp
    Filesize

    588KB

  • memory/1276-34-0x0000000003E60000-0x0000000003F35000-memory.dmp
    Filesize

    852KB

  • memory/1276-41-0x0000000003F40000-0x0000000004006000-memory.dmp
    Filesize

    792KB

  • memory/1652-21-0x0000000000000000-mapping.dmp
  • memory/1704-16-0x0000000000000000-mapping.dmp
  • memory/1792-12-0x0000000075AE1000-0x0000000075AE3000-memory.dmp
    Filesize

    8KB

  • memory/1792-10-0x0000000000000000-mapping.dmp
  • memory/1924-3-0x0000000000EC0000-0x0000000000EC1000-memory.dmp
    Filesize

    4KB

  • memory/1924-5-0x00000000048B0000-0x00000000048B1000-memory.dmp
    Filesize

    4KB

  • memory/1924-2-0x00000000742C0000-0x00000000749AE000-memory.dmp
    Filesize

    6.9MB

  • memory/1924-6-0x0000000000360000-0x0000000000362000-memory.dmp
    Filesize

    8KB

  • memory/1924-7-0x00000000005D0000-0x0000000000624000-memory.dmp
    Filesize

    336KB