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Overview

overview

10

Static

static

3

95cf4689c0...18.exe

windows7-x64

10

95cf4689c0...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/08/2024, 10:57

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General

  • Target

    95cf4689c08a836b1bc6ce87fbf1a895_JaffaCakes118.exe

  • Size

    544KB

  • MD5

    95cf4689c08a836b1bc6ce87fbf1a895

  • SHA1

    64ee0a6ffe32e31c96b13ce8be219f8d44300b28

  • SHA256

    fd125d57a48c3f167fae13603cd4d4f4c661db870d637f95613625be68a48a88

  • SHA512

    bd2bef62cf6ecf1e7a8c5d7b910ae64a7372841207e04d771753faa0f225794ac014b240900e60086be37ae7205af10e723c3be61ff5148585782d3d5ab62115

  • SSDEEP

    12288:vQIWT/UzJW8ivxh7vHzgryd4GT1QOoJqbbEUqe9mJd/uB28Rr8O9F8/CwM:vQI+cJHiJRTHnxhUqEhe9suB2C8O9O

Score
10/10
discoveryevasionpersistenceupx

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
    evasion
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 10 IoCs
  • UPX packed file 17 IoCs

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

    upx
  • Unexpected DNS network traffic destination 2 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Adds Run key to start application 2 TTPs 52 IoCs
    persistence
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
    discovery
  • Suspicious use of SetThreadContext 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

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

    discovery
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\95cf4689c08a836b1bc6ce87fbf1a895_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\95cf4689c08a836b1bc6ce87fbf1a895_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1320
    • C:\Users\Admin\gau5f8p1.exe
      C:\Users\Admin\gau5f8p1.exe
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2548
      • C:\Users\Admin\yooos.exe
        "C:\Users\Admin\yooos.exe"
        3⤵
        • Modifies visiblity of hidden/system files in Explorer
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        PID:1076
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c tasklist&&del gau5f8p1.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1456
        • C:\Windows\SysWOW64\tasklist.exe
          tasklist
          4⤵
          • Enumerates processes with tasklist
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:4080
    • C:\Users\Admin\2des.exe
      C:\Users\Admin\2des.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3220
      • C:\Users\Admin\2des.exe
        "C:\Users\Admin\2des.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4472
      • C:\Users\Admin\2des.exe
        "C:\Users\Admin\2des.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:3520
      • C:\Users\Admin\2des.exe
        "C:\Users\Admin\2des.exe"
        3⤵
        • Executes dropped EXE
        • Maps connected drives based on registry
        • Suspicious behavior: EnumeratesProcesses
        PID:2772
      • C:\Users\Admin\2des.exe
        "C:\Users\Admin\2des.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2908
      • C:\Users\Admin\2des.exe
        "C:\Users\Admin\2des.exe"
        3⤵
        • Executes dropped EXE
        PID:1400
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1400 -s 80
          4⤵
          • Program crash
          PID:820
    • C:\Users\Admin\3des.exe
      C:\Users\Admin\3des.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1852
      • C:\Users\Admin\AppData\Local\173e05a9\X
        *0*bc*699ee06a*31.193.3.240:53
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3136
        • C:\Windows\explorer.exe
          "C:\Windows\explorer.exe"
          4⤵
          • Modifies registry class
          PID:2104
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c tasklist&&del 95cf4689c08a836b1bc6ce87fbf1a895_JaffaCakes118.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4928
      • C:\Windows\SysWOW64\tasklist.exe
        tasklist
        3⤵
        • Enumerates processes with tasklist
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2340
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1400 -ip 1400
    1⤵
      PID:1212

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\2des.exe
      Filesize

      132KB

      MD5

      da081a5c83e9130e96acb301295bb14b

      SHA1

      4e46aa4b39ea48c86838432e2724d7d3c508ab01

      SHA256

      7ff325379204c4ab4a2a8cd60f5299eba0582c4fe52014689fd69008d1154646

      SHA512

      46c1c1f0121bb1cd75656461a0e8044b665dc3601a79053516f7092b8230fb08be91eca4da1933d0719a78cf91699d1f6e641d06b3f21cdc5f3d97bcc9b381e1

      Download Submit

    • C:\Users\Admin\3des.exe
      Filesize

      286KB

      MD5

      cb278b7760c080ea4f57aea471f0f674

      SHA1

      2c052b2db7a196d127c2b84b62563d0c98ec0413

      SHA256

      74cb6a456be0e9bad997e8c97475c47ab27c40d3627484f7b38a86bd01c78930

      SHA512

      dbdf6a95b53a53f3a3dd929e0b1d63d512c00e9d28bf2f05c3e63707f0208f4f311adc637bb97a9d05bdb6bad9d6c7021aeec8c99ffe7033212e7763d4046bd3

      Download Submit

    • C:\Users\Admin\AppData\Local\173e05a9\X
      Filesize

      38KB

      MD5

      72de2dadaf875e2fd7614e100419033c

      SHA1

      5f17c5330e91a42daa9ff24c4aa602bd1a72bf6e

      SHA256

      c44993768a4dc5a58ddbfc9cb05ce2a7d3a0a56be45643d70a72bcf811b6c381

      SHA512

      e2520a53326a7d3b056e65d0cf60e9d823ffb34ca026cdddc7ea3a714f8396c53c37e13a887fc86a7dd7076c97fdfad53c3f5a68342ebc1bdec948c76bda8df3

      Download Submit

    • C:\Users\Admin\gau5f8p1.exe
      Filesize

      252KB

      MD5

      3e152747de87d4674484a003398db051

      SHA1

      82557817b08eb981afa68701092d9f6e0d71ef79

      SHA256

      1d5897272a1b899ce244d0863e9cf743adf4a9f5838bed75b7fc6a6e31a9da3e

      SHA512

      dd726c743cac5696bf225d4b8d5cfa7b28f218eb6e7f2325e4f75d3cc4539e417210d477bafbcd82e7eb9e7b4e8ce20ae6ad30e2e7d36d949223bed0c78dcfa7

      Download Submit

    • C:\Users\Admin\yooos.exe
      Filesize

      252KB

      MD5

      cb8c11187d520f150435b32bb38c2265

      SHA1

      271422100f80121ff8ca340b7b7f2150650facf2

      SHA256

      97db452fed4997206f809aadfbeee61ab50c4809984ea634f0a3705c71c7b6d5

      SHA512

      5688f2abd2ad5816d7d32dbbe07f9a9ec27e2b5c5b1fa58448f960bea7dc6fa98beca445354c1c1f9e7ae6a22b5f9d094cc7dd166dcfcb287b0b7c41dd2ee60c

      Download Submit

    • memory/1852-83-0x0000000030670000-0x00000000306C2000-memory.dmp

      Filesize

      328KB

      Download

    • memory/2772-62-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

      Download

    • memory/2772-88-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

      Download

    • memory/2772-60-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

      Download

    • memory/2772-63-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

      Download

    • memory/2908-68-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/2908-64-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/2908-67-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/2908-89-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/3520-59-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

      Download

    • memory/3520-51-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

      Download

    • memory/3520-54-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

      Download

    • memory/3520-55-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

      Download

    • memory/4472-58-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/4472-49-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/4472-81-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/4472-50-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/4472-47-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download