General

  • Target

    nursultan.exe

  • Size

    231KB

  • Sample

    240229-qlm9aaaf73

  • MD5

    0a40e097ff34f2786e6a1b1c2695db2d

  • SHA1

    7701f374e627f5624ee7b792c777d2b59b41ac20

  • SHA256

    a9e16fdb1ad53a73784a03803410b238e2de590eb1f7a1d6e4dfa0354ef99ca0

  • SHA512

    3ed97fbbd49460b582c51059b7e96535a951820179e89492f16668d176c8bb33ebaf8f4e056e5e909fcda74167dfa71cd8f83db840b10fb084019ae675982c47

  • SSDEEP

    6144:xloZMArIkd8g+EtXHkv/iD44gTVBPUonRWvRsY94Fb8e1mFrQi:DoZHL+EP84gTVBPUonRWvRsY9sOJ

Score
10/10

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1212013600261279754/pS2kUk8X8HLTwlZ_TrdPXO-susrMQC81SOpxO7zVm1bHHQsqYw40zPb6UlXkaCeSSy_l

Targets

    • Target

      nursultan.exe

    • Size

      231KB

    • MD5

      0a40e097ff34f2786e6a1b1c2695db2d

    • SHA1

      7701f374e627f5624ee7b792c777d2b59b41ac20

    • SHA256

      a9e16fdb1ad53a73784a03803410b238e2de590eb1f7a1d6e4dfa0354ef99ca0

    • SHA512

      3ed97fbbd49460b582c51059b7e96535a951820179e89492f16668d176c8bb33ebaf8f4e056e5e909fcda74167dfa71cd8f83db840b10fb084019ae675982c47

    • SSDEEP

      6144:xloZMArIkd8g+EtXHkv/iD44gTVBPUonRWvRsY94Fb8e1mFrQi:DoZHL+EP84gTVBPUonRWvRsY9sOJ

    Score
    10/10
    • Detect Umbral payload

    • Umbral

      Umbral stealer is an opensource moduler stealer written in C#.

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Enterprise v15

Tasks