Resubmissions

13-01-2025 01:00

250113-bc1exsxqcw 10

09-01-2025 18:15

250109-wwd19aypdj 10

Analysis

  • max time kernel
    427s
  • max time network
    438s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-01-2025 01:00

General

  • Target

    JaffaCakes118_ced708f928aa491a32b37ec480e183e4.exe

  • Size

    1.7MB

  • MD5

    ced708f928aa491a32b37ec480e183e4

  • SHA1

    1a46894c58d11c280ed030b95ac718212e981de2

  • SHA256

    b24c714a278ed88180aaace10ef9ff8827e7303442bf78da57e452bc00e4fe52

  • SHA512

    f36ed37c604e696307a2a4614697cf0e8f770f3062eba4819bc4e70ecf4f78d096f96cee5e744329c6e7d61b65ecc0bf88716a1e7d864824f620f1084ca1f5d2

  • SSDEEP

    49152:IohZwvj2SxBlC35eBTr6e3irsu2YArYKVxjb:Avj2E4J2Tr6e3iwu2b0Kv

Score
10/10

Malware Config

Signatures

  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 1 IoCs
  • Stormkitty family
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ced708f928aa491a32b37ec480e183e4.exe
    C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ced708f928aa491a32b37ec480e183e4.exe cmd /c %SIGILL% "SIGTERM|DELETE|SIGKILL"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4052
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpAFA9.tmp.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1980
      • C:\Windows\system32\chcp.com
        chcp 65001
        3⤵
          PID:3708
        • C:\Windows\system32\taskkill.exe
          TaskKill /F /IM 4052
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4768
        • C:\Windows\system32\timeout.exe
          Timeout /T 2 /Nobreak
          3⤵
          • Delays execution with timeout.exe
          PID:3048

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpAFA9.tmp.bat

      Filesize

      213B

      MD5

      9e06721fe31ac90d84ea2e5f3945aa5d

      SHA1

      78956b8950440313d5c956467d9442f1f4cf44d6

      SHA256

      6b6ddbd0830bdeccd094ee02b89f12102781c958b09520bb92071578e9583d46

      SHA512

      9bdd015d50a2b7d8aa39b162745328b8a91f3ae6938335b130b03cb1dc30b697cc0374629699dc9728c6057e932b00e445bff173b4f3907ea9f027f9f4858032

    • memory/4052-0-0x00007FFE599A3000-0x00007FFE599A5000-memory.dmp

      Filesize

      8KB

    • memory/4052-1-0x0000000000680000-0x0000000000838000-memory.dmp

      Filesize

      1.7MB

    • memory/4052-2-0x00007FFE599A0000-0x00007FFE5A461000-memory.dmp

      Filesize

      10.8MB

    • memory/4052-5-0x00007FFE599A0000-0x00007FFE5A461000-memory.dmp

      Filesize

      10.8MB