General

  • Target

    c11accc6b91c118a30fc9ea60b72258b

  • Size

    393KB

  • Sample

    211104-xassyshcf8

  • MD5

    c11accc6b91c118a30fc9ea60b72258b

  • SHA1

    e755b8a318bf454cf58eda24e59dd843a8fbf3dc

  • SHA256

    430ac8fe1b764fd7c42a316d36eaf32af003075f617bceb6651aa6be37c6290a

  • SHA512

    5df678c4d464edf4331acfe05c11ced2d4c9da49fa2d0447d7b969a4f5f98ebe1b6cc6d90ffeb2aa7690db0e233258dbc18ea95ebc20710e40c3edfeb00bf5bb

Malware Config

Extracted

Family

oski

C2

secureconnection.xyz

Targets

    • Target

      c11accc6b91c118a30fc9ea60b72258b

    • Size

      393KB

    • MD5

      c11accc6b91c118a30fc9ea60b72258b

    • SHA1

      e755b8a318bf454cf58eda24e59dd843a8fbf3dc

    • SHA256

      430ac8fe1b764fd7c42a316d36eaf32af003075f617bceb6651aa6be37c6290a

    • SHA512

      5df678c4d464edf4331acfe05c11ced2d4c9da49fa2d0447d7b969a4f5f98ebe1b6cc6d90ffeb2aa7690db0e233258dbc18ea95ebc20710e40c3edfeb00bf5bb

    • Oski

      Oski is an infostealer targeting browser data, crypto wallets.

    • Downloads MZ/PE file

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Tasks