General

  • Target

    ff2e4cca98f654a0d87ccb16ca83b916.exe

  • Size

    550KB

  • Sample

    210719-t5fe62bxb6

  • MD5

    ff2e4cca98f654a0d87ccb16ca83b916

  • SHA1

    56579266ecbedcbe65ce1beb9174eccc2dc4c07d

  • SHA256

    581684eed64322ad48a61a06b57e73b343c2dabb51248b33a943d0282677546f

  • SHA512

    8807dddc15895d7d6d8434fd1a48f5081286b7b59cdd91a7e29c6fefc2eae46489def6ccbf94600d490fc6de435a8f105f20e8e7715182a989b8de995acc7b9b

Malware Config

Extracted

Family

vidar

Version

39.6

Botnet

903

C2

https://sslamlssa1.tumblr.com/

Attributes
  • profile_id

    903

Targets

    • Target

      ff2e4cca98f654a0d87ccb16ca83b916.exe

    • Size

      550KB

    • MD5

      ff2e4cca98f654a0d87ccb16ca83b916

    • SHA1

      56579266ecbedcbe65ce1beb9174eccc2dc4c07d

    • SHA256

      581684eed64322ad48a61a06b57e73b343c2dabb51248b33a943d0282677546f

    • SHA512

      8807dddc15895d7d6d8434fd1a48f5081286b7b59cdd91a7e29c6fefc2eae46489def6ccbf94600d490fc6de435a8f105f20e8e7715182a989b8de995acc7b9b

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • Downloads MZ/PE file

    • Deletes itself

    • 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 user/profile data of web browsers

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

    • Accesses 2FA software files, possible credential harvesting

    • 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

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Tasks