Resubmissions

21/03/2026, 17:22

260321-vxselaht8v10

21/03/2026, 16:50

260321-vcmnlsbt4r10

Analysis

  • max time kernel
    8s
  • max time network
    39s
  • platform
    android-9_x86
  • resource
    android-x86-arm-20260306-en
  • resource tags

    arch:armarch:x86image:android-x86-arm-20260306-enlocale:en-usos:android-9-x86system
  • submitted
    21/03/2026, 16:50

General

  • Target
    Chinese Nulls Brawl Virus(Telegram @APXUBbl_BUPYCOB).apk
  • Size 566KB
  • Sample260321-vcmnlsbt4r
  • SHA256 7a0d9a3c94f7d81ac627a20a02b425603d2f6ec3b997004a32d5c3105f92e52f
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Loads dropped Dex/Jar 1 TTPs 2 IoCs

    Runs executable file dropped to the device during analysis.

Processes

  • com.nulsbrawlmode
    1⤵
    • Loads dropped Dex/Jar
    PID:4246
    • /system/bin/dex2oat --instruction-set=x86 --instruction-set-features=ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt --runtime-arg -Xhidden-api-checks --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --inline-max-code-units=0 --compact-dex-level=none --dex-file=/data/user/0/com.nulsbrawlmode/app_sgdgmcumf/kartisx.jar --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.nulsbrawlmode/app_sgdgmcumf/oat/x86/kartisx.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4270

Network

        MITRE ATT&CK Mobile v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        kartisx.jar

        • Path /data/data/com.nulsbrawlmode/app_sgdgmcumf/kartisx.jar
        • Size 224KB
        • SHA256 d54f92c248831084d5b77eb1161f53410c2d3df814680af915918bdfdef0b25a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        kartisx.jar

        • Path /data/user/0/com.nulsbrawlmode/app_sgdgmcumf/kartisx.jar
        • Size 558KB
        • SHA256 c5eb7ec669c78613c5a33ef58cc4476ea70bf79040fca60290bb78514d9ae58a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        kartisx.jar

        • Path /data/user/0/com.nulsbrawlmode/app_sgdgmcumf/kartisx.jar
        • Size 558KB
        • SHA256 3b3437b4b6ebb65dda61331f48da83674fbd144b49fbd883578e9896497cde1b
        • MD5 SHA1 SHA512 SSDEEP TLSH