General

  • Target

    file.exe

  • Size

    7.3MB

  • Sample

    231022-lkcc6sgh99

  • MD5

    91fcc906d24350286fc38d756bdacbfc

  • SHA1

    b96e73c04be4d15ed18e2e7811b951554cf57e7b

  • SHA256

    12a5b844e946f8c8b4b4bb3301664f7a662a1341ea9171359d1c4fc25bc11b6a

  • SHA512

    b6cbca675648d967620e4d133345445a070896d2adebd44f58d9ad7f012db5bac0223d2304e86818bc9096e6c72087241c3917efed273d44809a7a1276787b3e

  • SSDEEP

    196608:tH/rieS1u4+zl+k7GJWhlTC7BUQ4qye9tkvQ2y3w3W9uWD:tDiFk4+zhLOBB4qT9tk6EW9

Malware Config

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Targets

    • Target

      file.exe

    • Size

      7.3MB

    • MD5

      91fcc906d24350286fc38d756bdacbfc

    • SHA1

      b96e73c04be4d15ed18e2e7811b951554cf57e7b

    • SHA256

      12a5b844e946f8c8b4b4bb3301664f7a662a1341ea9171359d1c4fc25bc11b6a

    • SHA512

      b6cbca675648d967620e4d133345445a070896d2adebd44f58d9ad7f012db5bac0223d2304e86818bc9096e6c72087241c3917efed273d44809a7a1276787b3e

    • SSDEEP

      196608:tH/rieS1u4+zl+k7GJWhlTC7BUQ4qye9tkvQ2y3w3W9uWD:tDiFk4+zhLOBB4qT9tk6EW9

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • xmrig

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

    • XMRig Miner payload

    • Drops file in Drivers directory

    • Stops running service(s)

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks