General

  • Target

    95C729597254D7D13131A1D787EE8672.exe

  • Size

    200KB

  • Sample

    231103-v6kq4shf85

  • MD5

    95c729597254d7d13131a1d787ee8672

  • SHA1

    d44dd5beba366c2dd917ca0ed0ba5ff109d765c7

  • SHA256

    078e034c9471d383cda140f060f9ff26960d0674cfc9d0c05d0c704dbe5cf9ab

  • SHA512

    aa12e5ec478a25adf150da2f48aefe690716549f2d5a075e3d2e469ff626c8377e0a7bd4c6918b8e60bbe7be0a7428bf52fde71e3b7a66b3a88a24dffa3717ce

  • SSDEEP

    3072:WfUomEuYm98dlSq7gt5q7Dx+XgS6aCEwhOfUbCalNT2pbB3fIF1Xi6FLPo3c:WfUauY68uSWCx+XA7mg2pN01Ljo3c

Malware Config

Extracted

Family

oski

C2

9enternecera.ru.com/os/

Targets

    • Target

      95C729597254D7D13131A1D787EE8672.exe

    • Size

      200KB

    • MD5

      95c729597254d7d13131a1d787ee8672

    • SHA1

      d44dd5beba366c2dd917ca0ed0ba5ff109d765c7

    • SHA256

      078e034c9471d383cda140f060f9ff26960d0674cfc9d0c05d0c704dbe5cf9ab

    • SHA512

      aa12e5ec478a25adf150da2f48aefe690716549f2d5a075e3d2e469ff626c8377e0a7bd4c6918b8e60bbe7be0a7428bf52fde71e3b7a66b3a88a24dffa3717ce

    • SSDEEP

      3072:WfUomEuYm98dlSq7gt5q7Dx+XgS6aCEwhOfUbCalNT2pbB3fIF1Xi6FLPo3c:WfUauY68uSWCx+XA7mg2pN01Ljo3c

    • Oski

      Oski is an infostealer targeting browser data, crypto wallets.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Deletes itself

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • 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.

MITRE ATT&CK Enterprise v15

Tasks