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General

  • Target

    72f9d9ab0b467c913db0988f5b4126d819c1ae42844415d6d1e3df2e92d1a2a5_JC.exe

  • Size

    253KB

  • Sample

    230826-r48hlsda4x

  • MD5

    c79e74e97d749a3e9bd428952d420362

  • SHA1

    439a647fa65ca835ae8ee667b12b368b2db099d1

  • SHA256

    72f9d9ab0b467c913db0988f5b4126d819c1ae42844415d6d1e3df2e92d1a2a5

  • SHA512

    651ff8c8c18b7986cc6da681be0718235bf7f25efcb27568d33269c277f9d47c09019dca875dc5803510741f872385ae1decf424159524636c2f6352324c7aea

  • SSDEEP

    3072:K/YZvaldnqbzvCOBds5C4Z9pGcnqrxGaK3jHTmzUj/L12rjqTu4:kQzvtBdwVzZqrIn3PbdWf4

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      72f9d9ab0b467c913db0988f5b4126d819c1ae42844415d6d1e3df2e92d1a2a5_JC.exe

    • Size

      253KB

    • MD5

      c79e74e97d749a3e9bd428952d420362

    • SHA1

      439a647fa65ca835ae8ee667b12b368b2db099d1

    • SHA256

      72f9d9ab0b467c913db0988f5b4126d819c1ae42844415d6d1e3df2e92d1a2a5

    • SHA512

      651ff8c8c18b7986cc6da681be0718235bf7f25efcb27568d33269c277f9d47c09019dca875dc5803510741f872385ae1decf424159524636c2f6352324c7aea

    • SSDEEP

      3072:K/YZvaldnqbzvCOBds5C4Z9pGcnqrxGaK3jHTmzUj/L12rjqTu4:kQzvtBdwVzZqrIn3PbdWf4

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Windows security bypass

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • XMRig Miner payload

    • Creates new service(s)

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Deletes itself

    • Executes dropped EXE

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks