Analysis

  • max time kernel
    151s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-12-2022 13:35

General

  • Target

    e21170857794e9f02ccaecc677f3eafe4fca98541f8ef1fa872dc9b66247af83.exe

  • Size

    29KB

  • MD5

    f5e4bdb329cb29c3abb5d8419a027a3c

  • SHA1

    d832c3cc51283c494ce27b522747961f1386e05f

  • SHA256

    e21170857794e9f02ccaecc677f3eafe4fca98541f8ef1fa872dc9b66247af83

  • SHA512

    104569cac6658594398e24b3cad975d069abd4ebe06722a949df087c79af315518fbd897923adde011d1ac06e66ffbc1360fcf5af8911563992f4436f809184a

  • SSDEEP

    768:0BCzbIqVpKx3Vy2C0Jjfp/zX+Y9Kw5LG3OILRSwEqqmhAZPg5W:0+Iqqx3VyExprXl9Kw5LGBcPma0W

Malware Config

Extracted

Family

systembc

C2

109.205.214.18:443

Signatures

  • Danabot

    Danabot is a modular banking Trojan that has been linked with other malware.

  • Detects Smokeloader packer 2 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • SystemBC

    SystemBC is a proxy and remote administration tool first seen in 2019.

  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Checks processor information in registry 2 TTPs 28 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
  • Modifies registry class 31 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e21170857794e9f02ccaecc677f3eafe4fca98541f8ef1fa872dc9b66247af83.exe
    "C:\Users\Admin\AppData\Local\Temp\e21170857794e9f02ccaecc677f3eafe4fca98541f8ef1fa872dc9b66247af83.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2276
  • C:\Users\Admin\AppData\Local\Temp\F736.exe
    C:\Users\Admin\AppData\Local\Temp\F736.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:4804
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Qsedeqtedeooeo.tmp",Wufaiiuuye
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Checks processor information in registry
      • Suspicious use of WriteProcessMemory
      PID:4164
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 14130
        3⤵
        • Modifies registry class
        • Suspicious use of FindShellTrayWindow
        PID:3020
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 472
      2⤵
      • Program crash
      PID:3840
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4804 -ip 4804
    1⤵
      PID:4152
    • C:\Users\Admin\AppData\Local\Temp\59C9.exe
      C:\Users\Admin\AppData\Local\Temp\59C9.exe
      1⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      PID:1176
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1176 -s 956
        2⤵
        • Program crash
        PID:2316
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:2276
      • C:\ProgramData\kaffubx\rkgu.exe
        C:\ProgramData\kaffubx\rkgu.exe start
        1⤵
        • Executes dropped EXE
        PID:1496
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1176 -ip 1176
        1⤵
          PID:4724

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Defense Evasion

        Modify Registry

        1
        T1112

        Discovery

        System Information Discovery

        3
        T1082

        Query Registry

        2
        T1012

        Peripheral Device Discovery

        1
        T1120

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\kaffubx\rkgu.exe
          Filesize

          218KB

          MD5

          cdc67700f25eaed1417264c4bdec03d3

          SHA1

          56639e9414e6ee8394d940d62778475ddf071290

          SHA256

          fdd4cca0516be799c954e96be26b2d04e42ea0bac1edb00604412914bae2f100

          SHA512

          a2b38a1d4d0cb57532f3feb2efa1fb345c03df9114dfb2dcc93286e19b96eb5e182bd79d070a0e4fccf1980f47effc9b511dbb0074bba69bee80098317e08038

        • C:\ProgramData\kaffubx\rkgu.exe
          Filesize

          218KB

          MD5

          cdc67700f25eaed1417264c4bdec03d3

          SHA1

          56639e9414e6ee8394d940d62778475ddf071290

          SHA256

          fdd4cca0516be799c954e96be26b2d04e42ea0bac1edb00604412914bae2f100

          SHA512

          a2b38a1d4d0cb57532f3feb2efa1fb345c03df9114dfb2dcc93286e19b96eb5e182bd79d070a0e4fccf1980f47effc9b511dbb0074bba69bee80098317e08038

        • C:\Users\Admin\AppData\Local\Temp\59C9.exe
          Filesize

          218KB

          MD5

          cdc67700f25eaed1417264c4bdec03d3

          SHA1

          56639e9414e6ee8394d940d62778475ddf071290

          SHA256

          fdd4cca0516be799c954e96be26b2d04e42ea0bac1edb00604412914bae2f100

          SHA512

          a2b38a1d4d0cb57532f3feb2efa1fb345c03df9114dfb2dcc93286e19b96eb5e182bd79d070a0e4fccf1980f47effc9b511dbb0074bba69bee80098317e08038

        • C:\Users\Admin\AppData\Local\Temp\59C9.exe
          Filesize

          218KB

          MD5

          cdc67700f25eaed1417264c4bdec03d3

          SHA1

          56639e9414e6ee8394d940d62778475ddf071290

          SHA256

          fdd4cca0516be799c954e96be26b2d04e42ea0bac1edb00604412914bae2f100

          SHA512

          a2b38a1d4d0cb57532f3feb2efa1fb345c03df9114dfb2dcc93286e19b96eb5e182bd79d070a0e4fccf1980f47effc9b511dbb0074bba69bee80098317e08038

        • C:\Users\Admin\AppData\Local\Temp\F736.exe
          Filesize

          1.1MB

          MD5

          3967f9e696a6bf35357fd4a240c4018e

          SHA1

          999bf859c09e824863ce2cd5222ef200f18bc95b

          SHA256

          e1d8c775765a124d8ea8b8281582fbc2b3aec1e943d7a05e8d7459889971303a

          SHA512

          0cc1f3d64120d9b00389ad45197393fa7fff01da006c3f6624f731e82c268a78dcdc26e13dd26e742984185b3c23c77c072132dc95c9de2696869538837b3103

        • C:\Users\Admin\AppData\Local\Temp\F736.exe
          Filesize

          1.1MB

          MD5

          3967f9e696a6bf35357fd4a240c4018e

          SHA1

          999bf859c09e824863ce2cd5222ef200f18bc95b

          SHA256

          e1d8c775765a124d8ea8b8281582fbc2b3aec1e943d7a05e8d7459889971303a

          SHA512

          0cc1f3d64120d9b00389ad45197393fa7fff01da006c3f6624f731e82c268a78dcdc26e13dd26e742984185b3c23c77c072132dc95c9de2696869538837b3103

        • C:\Users\Admin\AppData\Local\Temp\Qsedeqtedeooeo.tmp
          Filesize

          797KB

          MD5

          24925b25552a7d8f1d3292071e545920

          SHA1

          f786e1d40df30f6fed0301d60c823b655f2d6eac

          SHA256

          9931503a3ab908d2840dae6a7cb77a5abc5e77cc67af405d1329b7dfc3fe800b

          SHA512

          242dbf94b06e67fdf0aac29b2f38ce4929d156c42e2413565f203cda1fdb6458e34b26eeb0151fe4f1914432be28b16d648affa63f20c7b480c54e2d9360fb26

        • C:\Users\Admin\AppData\Local\Temp\Qsedeqtedeooeo.tmp
          Filesize

          797KB

          MD5

          24925b25552a7d8f1d3292071e545920

          SHA1

          f786e1d40df30f6fed0301d60c823b655f2d6eac

          SHA256

          9931503a3ab908d2840dae6a7cb77a5abc5e77cc67af405d1329b7dfc3fe800b

          SHA512

          242dbf94b06e67fdf0aac29b2f38ce4929d156c42e2413565f203cda1fdb6458e34b26eeb0151fe4f1914432be28b16d648affa63f20c7b480c54e2d9360fb26

        • memory/1176-147-0x0000000000000000-mapping.dmp
        • memory/1176-169-0x0000000000400000-0x000000000045F000-memory.dmp
          Filesize

          380KB

        • memory/1176-162-0x0000000000400000-0x000000000045F000-memory.dmp
          Filesize

          380KB

        • memory/1176-161-0x0000000000560000-0x0000000000569000-memory.dmp
          Filesize

          36KB

        • memory/1176-160-0x00000000006F9000-0x000000000070A000-memory.dmp
          Filesize

          68KB

        • memory/1176-166-0x00000000006F9000-0x000000000070A000-memory.dmp
          Filesize

          68KB

        • memory/1496-167-0x0000000000722000-0x0000000000733000-memory.dmp
          Filesize

          68KB

        • memory/1496-168-0x0000000000400000-0x000000000045F000-memory.dmp
          Filesize

          380KB

        • memory/2276-132-0x0000000000400000-0x0000000000409000-memory.dmp
          Filesize

          36KB

        • memory/2276-133-0x0000000000400000-0x0000000000409000-memory.dmp
          Filesize

          36KB

        • memory/3020-155-0x000002B4C1090000-0x000002B4C11D0000-memory.dmp
          Filesize

          1.2MB

        • memory/3020-159-0x000002B4BF6C0000-0x000002B4BF8EA000-memory.dmp
          Filesize

          2.2MB

        • memory/3020-158-0x0000000000320000-0x0000000000539000-memory.dmp
          Filesize

          2.1MB

        • memory/3020-156-0x000002B4C1090000-0x000002B4C11D0000-memory.dmp
          Filesize

          1.2MB

        • memory/3020-154-0x00007FF744736890-mapping.dmp
        • memory/4164-150-0x0000000004C30000-0x0000000004D70000-memory.dmp
          Filesize

          1.2MB

        • memory/4164-144-0x0000000005AC0000-0x00000000061E5000-memory.dmp
          Filesize

          7.1MB

        • memory/4164-157-0x0000000004CA9000-0x0000000004CAB000-memory.dmp
          Filesize

          8KB

        • memory/4164-152-0x0000000004C30000-0x0000000004D70000-memory.dmp
          Filesize

          1.2MB

        • memory/4164-151-0x0000000004C30000-0x0000000004D70000-memory.dmp
          Filesize

          1.2MB

        • memory/4164-145-0x0000000004C30000-0x0000000004D70000-memory.dmp
          Filesize

          1.2MB

        • memory/4164-146-0x0000000004C30000-0x0000000004D70000-memory.dmp
          Filesize

          1.2MB

        • memory/4164-153-0x0000000004C30000-0x0000000004D70000-memory.dmp
          Filesize

          1.2MB

        • memory/4164-163-0x0000000005AC0000-0x00000000061E5000-memory.dmp
          Filesize

          7.1MB

        • memory/4164-143-0x0000000005AC0000-0x00000000061E5000-memory.dmp
          Filesize

          7.1MB

        • memory/4164-137-0x0000000000000000-mapping.dmp
        • memory/4804-141-0x00000000022C0000-0x00000000023F0000-memory.dmp
          Filesize

          1.2MB

        • memory/4804-140-0x00000000021C1000-0x00000000022AF000-memory.dmp
          Filesize

          952KB

        • memory/4804-142-0x0000000000400000-0x000000000053E000-memory.dmp
          Filesize

          1.2MB

        • memory/4804-134-0x0000000000000000-mapping.dmp