Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    20-04-2024 12:27

General

  • Target

    fcc4e3f10d677af49364574c390ce41b_JaffaCakes118.xlsb

  • Size

    323KB

  • MD5

    fcc4e3f10d677af49364574c390ce41b

  • SHA1

    dc255291e63905f4f4676fe93004a76559b92188

  • SHA256

    19d58cd2a0cc6d73d21a49abe73938e161642e94fee443dde7a1edd7e13d4a3f

  • SHA512

    9d94e2c062e3e9dadca3d1b25e0f9407afb64ebf167479aee2dbf486f9bb779ab1f2e0fcf0babffcc4df96f1ecc60c3cfa0f679837ab70b73302c9d9225d488d

  • SSDEEP

    6144:oLbS9JkqbkFdhswz+TXO/J6t/VYfASkKTzZYwPMPFde/Qxx2u+OA+NT5AE:sSPkqQ3hMTX7ifASkKTzSwkPFduQx0un

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 2 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Blocklisted process makes network request 3 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 40 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\fcc4e3f10d677af49364574c390ce41b_JaffaCakes118.xlsb
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic process call create 'mshta C:\ProgramData\OpPUfXchAvRL.sct'
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of AdjustPrivilegeToken
      PID:2592
  • C:\Windows\system32\mshta.exe
    mshta C:\ProgramData\OpPUfXchAvRL.sct
    1⤵
    • Process spawned unexpected child process
    • Blocklisted process makes network request
    • Modifies system certificate store
    PID:2824

Network

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Modify Registry

2
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\OpPUfXchAvRL.sct
    Filesize

    15KB

    MD5

    cecd23cfc92ccc2dc9385a7920df58d1

    SHA1

    94d1d9a1c3dc68141d00b5c09dfeceed2f5d092f

    SHA256

    1dfd08439b8876ac316c4ae812d372357965aa5536b4d5da596ed8c2ccca328c

    SHA512

    a2912854c1e5bb991654d1a21a91ed38f5f80d592f9d1cb74e3d153eb7023118922864f1efa837e3ae8bd1ff3fee59a6edad3f76f8acd33fa870bc42c838daca

  • 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\Tar2D10.tmp
    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • memory/1516-0-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1516-1-0x00000000727ED000-0x00000000727F8000-memory.dmp
    Filesize

    44KB

  • memory/1516-60-0x00000000727ED000-0x00000000727F8000-memory.dmp
    Filesize

    44KB

  • memory/1516-63-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1516-67-0x00000000727ED000-0x00000000727F8000-memory.dmp
    Filesize

    44KB