General

  • Target

    file.exe

  • Size

    210KB

  • Sample

    230115-s4rqjacd7t

  • MD5

    63f1cf4d473f59b211da781139c2602e

  • SHA1

    c584e03ce15d4505fd32acb742c2a380a87cbbd4

  • SHA256

    94cd01440758f627a06265285a8b50f0484d869d9ce4f6b904c0b9d37910b3a8

  • SHA512

    4dc999e5dde7d23531ed3e172c9a623da5d1e437587c6456ea5240099fbf23c4ee43b9af7e0f30cd39199984417853cc08e9ca9d655c48578edbe4dbd5497e69

  • SSDEEP

    3072:/XWPEBQS7Ha5yvF7+jn5/0rIApqj4/pdlFk1i:vp7YjN0rIApN

Malware Config

Extracted

Family

lumma

C2

77.73.134.68

Targets

    • Target

      file.exe

    • Size

      210KB

    • MD5

      63f1cf4d473f59b211da781139c2602e

    • SHA1

      c584e03ce15d4505fd32acb742c2a380a87cbbd4

    • SHA256

      94cd01440758f627a06265285a8b50f0484d869d9ce4f6b904c0b9d37910b3a8

    • SHA512

      4dc999e5dde7d23531ed3e172c9a623da5d1e437587c6456ea5240099fbf23c4ee43b9af7e0f30cd39199984417853cc08e9ca9d655c48578edbe4dbd5497e69

    • SSDEEP

      3072:/XWPEBQS7Ha5yvF7+jn5/0rIApqj4/pdlFk1i:vp7YjN0rIApN

    • Detects Smokeloader packer

    • Lumma Stealer

      An infostealer written in C++ first seen in August 2022.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Sets DLL path for service in the registry

    • Sets service image path in registry

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook accounts

    • Accesses Microsoft Outlook profiles

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks