Resubmissions

23-01-2023 07:28

230123-jarzrscc68 1

23-01-2023 06:56

230123-hqvvxsdh6t 10

23-01-2023 05:09

230123-ftaytabg34 10

General

  • Target

    redlin.zip

  • Size

    2.9MB

  • Sample

    230123-ftaytabg34

  • MD5

    20a918e8de8f6abc3f9ad5aaa0f8ab6b

  • SHA1

    c73d97926e71d9577f8bf065a77abc82532a07af

  • SHA256

    f0e385eb75d80979811cf12c9dec3899ef724d1fba94ee5cd314c22e2df07377

  • SHA512

    a76522a9af082f49c9a6e3be9c2eae123d1e54e1e5408a189e3c55d6d47b91d1e169a0d5346c6f6a2f764e49bfd577dbdfa4809251a7b3373a0986d8104c4838

  • SSDEEP

    49152:C3arM3rBXWHDMzpUSngO8nChuH3CPmTq8dbZY5/pDMZzEmiLnFSMckQ8Xa/ZGJqJ:garM7BSMzpyOmChuHSOTqsbZY5/tEpiE

Malware Config

Extracted

Family

nullmixer

C2

http://sokiran.xyz/

Extracted

Family

vidar

Version

39.6

Botnet

933

C2

https://sslamlssa1.tumblr.com/

Attributes
  • profile_id

    933

Targets

    • Target

      cd53d44c68b4b58f88aa945ca38dd18e0a66c3f0854f5868fbea4345f7819fb4.exe

    • Size

      3.0MB

    • MD5

      74231678f536a19b3016840f56b845c7

    • SHA1

      a5645777558a7d5905e101e54d61b0c8c1120de3

    • SHA256

      cd53d44c68b4b58f88aa945ca38dd18e0a66c3f0854f5868fbea4345f7819fb4

    • SHA512

      4117ad2bcdca9104ca8a53df0f7de102509ba6eb264d025ab1facd7a7ca0c14a1c4dd17de130521c4169aaaaeb6e779579dcb16d63a58b77feebfdc32d983d1f

    • SSDEEP

      49152:xcBNPkZVi7iKiF8cUvFyPITKyMZOf+BFkUTQktm3II/M01KEwJ84vLRaBtIl9mT9:xNri7ixZUvFyPIpbfwF1UjIn01hCvLU9

    • Detect Fabookie payload

    • Detects Smokeloader packer

    • Fabookie

      Fabookie is facebook account info stealer.

    • Modifies Windows Defender Real-time Protection settings

    • NullMixer

      NullMixer is a malware dropper leading to an infection chain of a wide variety of malware families.

    • PrivateLoader

      PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    • Process spawned unexpected child process

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

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Nirsoft

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Executes dropped EXE

    • UPX packed file

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

    • 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.

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

3
T1112

Disabling Security Tools

1
T1089

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Tasks