Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04-04-2024 09:19

General

  • Target

    b49a216e03a62392dc1243d0f093c7ff_JaffaCakes118.exe

  • Size

    396KB

  • MD5

    b49a216e03a62392dc1243d0f093c7ff

  • SHA1

    f42c94b9fba18c0cb9184c86584dc2745cd6ad02

  • SHA256

    5aae3d166c68743d2868bcd732fa61c2491ddcbe64e6a05f078b48f920cc2be5

  • SHA512

    d203184efa3cf1af1ae24ec78ba6ab3c8e1e101184be9dd9414b3fa2b0c9d3a91b26bf86450d48b4b694dfe99229afbf9d6ee9175d6030c0f2f11ae6fb606d72

  • SSDEEP

    6144:Et7yGXk+IlGThqs2YmTXTIbAsBJBM+CQjbTpalJj5gXep0nhCsZ:E0mk+1Q4ATIZBJCsMjNpT+

Malware Config

Signatures

  • Taurus Stealer

    Taurus is an infostealer first seen in June 2020.

  • Taurus Stealer payload 4 IoCs
  • Deletes itself 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b49a216e03a62392dc1243d0f093c7ff_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b49a216e03a62392dc1243d0f093c7ff_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1956
    • C:\Windows\SysWOW64\cmd.exe
      /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\b49a216e03a62392dc1243d0f093c7ff_JaffaCakes118.exe
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1528
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 3
        3⤵
        • Delays execution with timeout.exe
        PID:1464

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\Local\Temp\Tar412C.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • memory/1956-1-0x0000000003E80000-0x0000000003F80000-memory.dmp

    Filesize

    1024KB

  • memory/1956-2-0x00000000002E0000-0x0000000000318000-memory.dmp

    Filesize

    224KB

  • memory/1956-10-0x0000000000400000-0x0000000003DC9000-memory.dmp

    Filesize

    57.8MB

  • memory/1956-81-0x0000000000400000-0x0000000003DC9000-memory.dmp

    Filesize

    57.8MB

  • memory/1956-122-0x0000000003E80000-0x0000000003F80000-memory.dmp

    Filesize

    1024KB

  • memory/1956-485-0x0000000003E80000-0x0000000003F80000-memory.dmp

    Filesize

    1024KB

  • memory/1956-484-0x0000000000400000-0x0000000003DC9000-memory.dmp

    Filesize

    57.8MB