General

  • Target

    0ef2423530764d0f9a745e60c251176c903929d958ce3ff1c22a6867c97bbc13.exe

  • Size

    8KB

  • Sample

    210714-66xsdzqapx

  • MD5

    4ab86ecf57745c9e783700043a906716

  • SHA1

    a393fe0edecbd9f8595d9994a6d72a8f72cc78e9

  • SHA256

    0ef2423530764d0f9a745e60c251176c903929d958ce3ff1c22a6867c97bbc13

  • SHA512

    63e5024caf4dd939c4d5985f8b6997c9df633aaf1f5ad70dc1b9b645f44d145af6db325d76e2a038bbb1beae8407f48f64ea4ec050c25690db4bd0232af9cff5

Malware Config

Extracted

Family

oski

C2

a343345.me

Extracted

Family

redline

Botnet

newbuilder999

C2

185.244.182.34:56068

Extracted

Family

redline

Botnet

More1407

C2

109.248.11.240:18612

Extracted

Family

redline

Botnet

PROLVI_20K_SERVER_@

C2

80.92.206.25:4311

Extracted

Family

redline

Botnet

sel12

C2

kathonaror.xyz:80

Extracted

Family

vidar

Version

39.5

Botnet

903

C2

https://olegf9844.tumblr.com/

Attributes
  • profile_id

    903

Targets

    • Target

      0ef2423530764d0f9a745e60c251176c903929d958ce3ff1c22a6867c97bbc13.exe

    • Size

      8KB

    • MD5

      4ab86ecf57745c9e783700043a906716

    • SHA1

      a393fe0edecbd9f8595d9994a6d72a8f72cc78e9

    • SHA256

      0ef2423530764d0f9a745e60c251176c903929d958ce3ff1c22a6867c97bbc13

    • SHA512

      63e5024caf4dd939c4d5985f8b6997c9df633aaf1f5ad70dc1b9b645f44d145af6db325d76e2a038bbb1beae8407f48f64ea4ec050c25690db4bd0232af9cff5

    • Modifies Windows Defender Real-time Protection settings

    • Oski

      Oski is an infostealer targeting browser data, crypto wallets.

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • RedLine

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

    • RedLine Payload

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Downloads MZ/PE file

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses 2FA software files, possible credential harvesting

    • 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.

    • Checks whether UAC is enabled

    • 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.

    • Drops file in System32 directory

    • 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

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

Virtualization/Sandbox Evasion

1
T1497

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

5
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Collection

Data from Local System

5
T1005

Command and Control

Web Service

1
T1102

Tasks