Overview

overview

7

Static

static

3

715b63c8e1...18.exe

windows7-x64

3

715b63c8e1...18.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    141s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/07/2024, 21:44

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General

  • Target

    715b63c8e14e093ab269f665a0e88bdb_JaffaCakes118.exe

  • Size

    107KB

  • MD5

    715b63c8e14e093ab269f665a0e88bdb

  • SHA1

    4162577b920fdaeb6e6ceb1aba55c064aee3833c

  • SHA256

    5b48b873f1aaa59cfc765533d489019afd1a3eb81bde0a66c93aa8ba825a1376

  • SHA512

    9871185d636b7936ce16f71234884094813c727933672f19de72c7698ee9164feae356766c2949b9fb85761125a21752cb910b07937ba036f1af8f13224625eb

  • SSDEEP

    1536:J6sIA5aKMuPL+W/2k6zrvAw6k6Cod1IcThBCP+5jzo3pBaAKVtAa+bw142x:Jx5avuz+W/2d4D/bucTTC+JYbY+bwtx

Score
7/10
discoverypersistenceransomwareupx

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 2 IoCs
  • UPX packed file 2 IoCs

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

    upx
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Drops file in System32 directory 2 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Enumerates physical storage devices 1 TTPs

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

  • 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.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Modifies Control Panel 8 IoCs
    evasion
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 19 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\715b63c8e14e093ab269f665a0e88bdb_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\715b63c8e14e093ab269f665a0e88bdb_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:5060
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\.tt9ED0.tmp.vbs"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2596
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:5020
  • C:\Windows\system32\srtasks.exe
    C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4468
  • C:\Windows\system32\srtasks.exe
    C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:3
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3892

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\.tt9ED0.tmp.vbs
    Filesize

    1002B

    MD5

    9df700c8f6fd43fac0a89aef04214bbd

    SHA1

    6ec8bc6d4041ccf19757757c0da6592469f71c57

    SHA256

    9ab6f2c3cc3965cd05f81d859bdfac3b25a5e70178f61ea677d31987c4e142fd

    SHA512

    8bbcd322f3998c0f7d81884737ca313c1353ac7e3899f168fc8d44eafbe064193353b8b16f92113288ff2102c47623b542861440c414b8acf36d75c4ad645d4d

    Download Submit

  • C:\Windows\SysWOW64\blphcjkpj0en9q.scr
    Filesize

    59KB

    MD5

    538f9ead95eba12134d95b4fe7082331

    SHA1

    527c50b92b5cededdd5b7e3edda71cb13d108dac

    SHA256

    a416bab39037854c14540edaaf80cff7b5f2e9db31eee235527574e8dedd54e6

    SHA512

    4631ff7cf868348585ee0e26591b95be3ee8b232c7980f5013f4464f285b0fbdef41794c44cb8653d6fb6dc815c0c0a9f4af780bfeb9b23d2f4c3bdc62bf4581

    Download Submit

  • memory/5060-0-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

    Download

  • memory/5060-2-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

    Download

  • memory/5060-4-0x00000000009F0000-0x0000000000A20000-memory.dmp

    Filesize

    192KB

    Download

  • memory/5060-1-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

    Download

  • memory/5060-3-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

    Download

  • memory/5060-5-0x0000000000401000-0x000000000040A000-memory.dmp

    Filesize

    36KB

    Download

  • memory/5060-17-0x0000000002F50000-0x0000000003004000-memory.dmp

    Filesize

    720KB

    Download

  • memory/5060-18-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

    Download

  • memory/5060-20-0x00000000009F0000-0x0000000000A20000-memory.dmp

    Filesize

    192KB

    Download