General

  • Target

    file.zip

  • Size

    721KB

  • Sample

    221101-zsz14afae8

  • MD5

    ca935fc0e3d1447d1eb1f57c22c46f54

  • SHA1

    d28e4b293da29838995ca1d78e14a9d475fc0daa

  • SHA256

    f533f98a7ffad645b043ccb7fc806bb13f69c60229cfde5eec04a04bf758d6ae

  • SHA512

    ed0948d76523adf7572d754074bdca730b6a9641f3caafa4ab942d5f4b5589d77a3e3339787ed3ff1ba33edf6b61e73d252157269d4a85b4e7eda881591b80f2

  • SSDEEP

    12288:upEPKw4EqcigIMl8CRiXS+2We9T0GtxVJFmT7QXNOLgygaUhotMbnW1M0rJO48xJ:upEP9CrgIMhiXSv0GrPFRgLNgaCe8xlv

Score
10/10

Malware Config

Extracted

Family

bumblebee

Botnet

0111

C2

102.151.221.33:443

104.244.77.61:443

212.114.52.124:443

23.106.160.141:443

198.98.56.242:443

23.108.57.5:443

rc4.plain

Targets

    • Target

      AxRHrzxRUiEjUG.bat

    • Size

      1KB

    • MD5

      02b5d8a62fd7a5418040d97f23e61b71

    • SHA1

      a532270410388c0a38c66b733c40be871014dbef

    • SHA256

      e42729d59278b7028d201e42f711d7da0690f3a1b9c52400c743a8fc403452cc

    • SHA512

      cab809df72d506d3502e6ba1b58964f8333caa18a2ba205354b2ded296fcab610c71b1c4b96dbe757b4a2d290a36dbb766877393539c7d5d469dd8325646bbfc

    Score
    10/10
    • BumbleBee

      BumbleBee is a webshell malware written in C++.

    • Blocklisted process makes network request

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Target

      XzdVAVxwxRDMJS.dll

    • Size

      883KB

    • MD5

      24c6fb77f304a94bb815974915f28911

    • SHA1

      db32739319f779d09ab34b21fc16cb0b5a319575

    • SHA256

      fe9eb87723493d36d843b689ddbebf8a1bc634da867d85bae7068e2176b034fb

    • SHA512

      8ee9add01406cd8004599ba1f32b0f89c8ed0a0328bfe0a52e8e61d80e484c3e2c9e8eacdc70c846a06993c84db1dc7ea6c4dbe21bdffec0c45d62bad1732da2

    • SSDEEP

      24576:QOpVeLbkxqoAet8iMvJNOZ3tKcwet4jJklGil:QuVeLwai0OZgcwetdB

    Score
    3/10
    • Target

      required info.lnk

    • Size

      995B

    • MD5

      f0555c679b00d40934f69bbbd0f9ba38

    • SHA1

      a746c1aa481e7cd9667b07755205e38a6b659308

    • SHA256

      c60f4fe7007786b401e203a3429810666cc9685447bea269605dc97e082b5169

    • SHA512

      bc3e47cc9f6bad9ced9c6f0890c2397db4df2010d64ff1a7d9214fff5bf99927959763854cc1d323a5c43a936b8c34b035a9f59daa6732fe87c1ceb5cd3bdb2f

    Score
    10/10
    • BumbleBee

      BumbleBee is a webshell malware written in C++.

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Suspicious use of NtCreateThreadExHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks