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Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    19/09/2024, 05:50

General

  • Target

    eab3bc48d6ba17b7974c806ff4acd84f_JaffaCakes118.exe

  • Size

    398KB

  • MD5

    eab3bc48d6ba17b7974c806ff4acd84f

  • SHA1

    a826916ab22e70c8de5b66bdb5ada15fd9426367

  • SHA256

    f7dba4a6735721c6a63936ab693175e13ed482ad960896c84432fa25e48915ac

  • SHA512

    9c04c2c592910ebbdbf63eba4597224a670c08acf1fcb318f97f5816d17835ca8ff8a1bde7570dfac75b12290f6bf61b4051a31f40664026a855b0b119651c07

  • SSDEEP

    6144:ArCboqZY7Io9hpFcGwvdsSkQIbez8BMOssF2FgP:6CM1Uo9xAk8z8yJs8Fu

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eab3bc48d6ba17b7974c806ff4acd84f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\eab3bc48d6ba17b7974c806ff4acd84f_JaffaCakes118.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2204
    • C:\Windows\Drybua.exe
      C:\Windows\Drybua.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of UnmapMainImage
      PID:2632

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\Drybua.exe

    Filesize

    398KB

    MD5

    eab3bc48d6ba17b7974c806ff4acd84f

    SHA1

    a826916ab22e70c8de5b66bdb5ada15fd9426367

    SHA256

    f7dba4a6735721c6a63936ab693175e13ed482ad960896c84432fa25e48915ac

    SHA512

    9c04c2c592910ebbdbf63eba4597224a670c08acf1fcb318f97f5816d17835ca8ff8a1bde7570dfac75b12290f6bf61b4051a31f40664026a855b0b119651c07

  • C:\Windows\Tasks\{35DC3473-A719-4d14-B7C1-FD326CA84A0C}.job

    Filesize

    372B

    MD5

    0a3e95639d943176200c24c141224e4a

    SHA1

    bdc7a60d991b520cbbb91b5c640b84fa543c6666

    SHA256

    e1375220184791a0082290608190a1a8bdcb1e111e3ad100ed82b40d00b68c24

    SHA512

    fb194960918841387cd606416b5b580792a3437f47d125798261a80d298416920933b02a7ca97972c43775231a93370e89fb63820cac52303770ae7dbf292d23

  • memory/2204-2-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2204-1-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB

  • memory/2204-14-0x0000000001EB0000-0x0000000001F15000-memory.dmp

    Filesize

    404KB

  • memory/2204-13-0x0000000001EB0000-0x0000000001F15000-memory.dmp

    Filesize

    404KB

  • memory/2204-0-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/2204-10934-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/2204-25950-0x0000000001EB0000-0x0000000001F15000-memory.dmp

    Filesize

    404KB

  • memory/2204-33346-0x0000000001EB0000-0x0000000001F15000-memory.dmp

    Filesize

    404KB

  • memory/2204-47229-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2632-20-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2632-47231-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB