General

  • Target

    0x000a0000000152a5-110.dat

  • Size

    32KB

  • Sample

    230722-esm2baab6z

  • MD5

    23402d62c41366d1aef09ade24c6ea0f

  • SHA1

    fc12fd9c3c950894c5ef42ec91da14bb813093cd

  • SHA256

    2ee8a1be8e6b46d43496b23f1f2569dbdce426677e818f91d2c4c72bf8c3c88e

  • SHA512

    5533a413f0434c68f580e5afa9b8f8f9211ff08fd9bc98257149f0d05e3223cea652723fb5526ea0e075586f2c7bacba694d1adf7be17d37a0408ac50d5db1da

  • SSDEEP

    384:K9VD6tee+qUOTd2opQTLAdz1SvNmhpdvOjT7PbA6HBiTSnjxZMdP05ldpRMaYIBI:k6Qe+qUv8zcqdvOXA6XkPslJvGaVW

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

rc4.i32
rc4.i32

Targets

    • Target

      0x000a0000000152a5-110.dat

    • Size

      32KB

    • MD5

      23402d62c41366d1aef09ade24c6ea0f

    • SHA1

      fc12fd9c3c950894c5ef42ec91da14bb813093cd

    • SHA256

      2ee8a1be8e6b46d43496b23f1f2569dbdce426677e818f91d2c4c72bf8c3c88e

    • SHA512

      5533a413f0434c68f580e5afa9b8f8f9211ff08fd9bc98257149f0d05e3223cea652723fb5526ea0e075586f2c7bacba694d1adf7be17d37a0408ac50d5db1da

    • SSDEEP

      384:K9VD6tee+qUOTd2opQTLAdz1SvNmhpdvOjT7PbA6HBiTSnjxZMdP05ldpRMaYIBI:k6Qe+qUv8zcqdvOXA6XkPslJvGaVW

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

MITRE ATT&CK Enterprise v15

Tasks