General

  • Target

    tmp

  • Size

    6KB

  • Sample

    221214-1ltfeabc44

  • MD5

    285cbd341de6e17b42f1663245a58346

  • SHA1

    5281aa0f428bca4b5eeafda1b7eefc5735490d09

  • SHA256

    55466ebc5b9c9e17e47e2af745c118001c1163eaa9aa945760f90b2af3f8362c

  • SHA512

    4a66b1409d84376228b4276dd13f0bd42aee0e935755faf01bde72c2b8a2d69da9addd55cf41a3c4a47ca06795f70ee6452976edc10de1b1ccea8705b3cd047d

  • SSDEEP

    96:7sfW3+7yyZLiS9co2FhRPr4SNkyfkkWFnU:7/22Fhx4SGQz

Malware Config

Extracted

Family

redline

Botnet

SPOOFER

C2

20.197.226.40:32619

Extracted

Family

asyncrat

Version

5.0.5

Botnet

Venom Clients

C2

20.197.226.40:4448

Mutex

CHECK_SYSTEMHOST

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      tmp

    • Size

      6KB

    • MD5

      285cbd341de6e17b42f1663245a58346

    • SHA1

      5281aa0f428bca4b5eeafda1b7eefc5735490d09

    • SHA256

      55466ebc5b9c9e17e47e2af745c118001c1163eaa9aa945760f90b2af3f8362c

    • SHA512

      4a66b1409d84376228b4276dd13f0bd42aee0e935755faf01bde72c2b8a2d69da9addd55cf41a3c4a47ca06795f70ee6452976edc10de1b1ccea8705b3cd047d

    • SSDEEP

      96:7sfW3+7yyZLiS9co2FhRPr4SNkyfkkWFnU:7/22Fhx4SGQz

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

    • Modifies Windows Defender Real-time Protection settings

    • RedLine

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

    • RedLine payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Async RAT payload

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Checks computer location settings

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

    • 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

    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

1
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

4
T1112

Disabling Security Tools

1
T1089

Hidden Files and Directories

2
T1158

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Tasks