General

  • Target

    ab51139e71a05619e6e12989087e4c91d10c7bd06a79a90329ec40e1cfbb8ba4

  • Size

    170KB

  • Sample

    220923-pt42bsgfg2

  • MD5

    2ad0b99861723a32a7181b3be56efd0e

  • SHA1

    fc8f14bb378616f0bbc2fe601419c97cf178c002

  • SHA256

    ab51139e71a05619e6e12989087e4c91d10c7bd06a79a90329ec40e1cfbb8ba4

  • SHA512

    56a78e61309137fb57bfd3028cc7e273c1f0e32248eb8f0077b2ad89e6dd943e1fb593a4386b91f7ca468ff49a1fa45a3d304e4f60c795774189e19a5c8baac9

  • SSDEEP

    3072:OeoI+YLH75GU6RRjDt2xJmPtPriIKTt+w2ABJd9/PkK4n:F+YLHcUgRPCJyu7TtL

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Extracted

Family

redline

C2

5.252.118.34:37991

Attributes
  • auth_value

    b5af0cad45273cbce8023bfa93cf0768

Extracted

Family

redline

Botnet

LogsDiller Cloud (Sup: @mr_golds)

C2

77.73.134.27:8163

Attributes
  • auth_value

    56c6f7b9024c076f0a96931453da7e56

Extracted

Family

redline

Botnet

0002

C2

13.72.81.58:13413

Attributes
  • auth_value

    866ce0ed8cfe2be77fb43a4912677698

Targets

    • Target

      ab51139e71a05619e6e12989087e4c91d10c7bd06a79a90329ec40e1cfbb8ba4

    • Size

      170KB

    • MD5

      2ad0b99861723a32a7181b3be56efd0e

    • SHA1

      fc8f14bb378616f0bbc2fe601419c97cf178c002

    • SHA256

      ab51139e71a05619e6e12989087e4c91d10c7bd06a79a90329ec40e1cfbb8ba4

    • SHA512

      56a78e61309137fb57bfd3028cc7e273c1f0e32248eb8f0077b2ad89e6dd943e1fb593a4386b91f7ca468ff49a1fa45a3d304e4f60c795774189e19a5c8baac9

    • SSDEEP

      3072:OeoI+YLH75GU6RRjDt2xJmPtPriIKTt+w2ABJd9/PkK4n:F+YLHcUgRPCJyu7TtL

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Detects Smokeloader packer

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Creates new service(s)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Deletes itself

    • 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

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

New Service

1
T1050

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

New Service

1
T1050

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Tasks