Software-update-patc_579570356.sfx.exe

General
Target

Software-update-patc_579570356.sfx.exe

Size

28MB

Sample

211021-qbjs4sacg9

Score
10 /10
MD5

b64a9d5a67665275d9cbb1d320f1361a

SHA1

3935a3994cb12a69ece3517a63eb35820761feaf

SHA256

28b8658e761beebef9578a13e60f231b7bd5af81107210c06ac108276e9447b9

SHA512

261b47e9218c1531b31ea4ba9a7aa89d5a28b7f0c4c8e4b8196acec7cbd107b31c169eb2fdcde324eeb5e8427298508d39260da82026125c199b2d146cf71d37

Malware Config

Extracted

Family vidar
Version 41.5
Botnet 223
C2

https://mas.to/@xeroxxx

Attributes
profile_id
223
Targets
Target

Software-update-patc_579570356.sfx.exe

MD5

b64a9d5a67665275d9cbb1d320f1361a

Filesize

28MB

Score
10/10
SHA1

3935a3994cb12a69ece3517a63eb35820761feaf

SHA256

28b8658e761beebef9578a13e60f231b7bd5af81107210c06ac108276e9447b9

SHA512

261b47e9218c1531b31ea4ba9a7aa89d5a28b7f0c4c8e4b8196acec7cbd107b31c169eb2fdcde324eeb5e8427298508d39260da82026125c199b2d146cf71d37

Tags

Signatures

  • RedLine

    Description

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

    Tags

  • RedLine Payload

  • Registers COM server for autorun

    Tags

    TTPs

    Registry Run Keys / Startup Folder
  • Vidar

    Description

    Vidar is an infostealer based on Arkei stealer.

    Tags

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

    Tags

    TTPs

    Query RegistryVirtualization/Sandbox Evasion
  • Vidar Stealer

    Tags

  • Blocklisted process makes network request

  • Downloads MZ/PE file

  • Drops file in Drivers directory

  • Executes dropped EXE

  • Sets file execution options in registry

    Tags

    TTPs

    Registry Run Keys / Startup FolderModify Registry
  • Checks BIOS information in registry

    Description

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

    TTPs

    Query RegistrySystem Information Discovery
  • Checks computer location settings

    Description

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

    TTPs

    Query RegistrySystem Information Discovery
  • Identifies Wine through registry keys

    Description

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    Tags

    TTPs

    Query RegistryVirtualization/Sandbox Evasion
  • Loads dropped DLL

  • Reads user/profile data of web browsers

    Description

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

    Tags

    TTPs

    Data from Local SystemCredentials in Files
  • Accesses 2FA software files, possible credential harvesting

    Tags

    TTPs

    Data from Local SystemCredentials in Files
  • Accesses cryptocurrency files/wallets, possible credential harvesting

    Tags

    TTPs

    Data from Local SystemCredentials in Files
  • Adds Run key to start application

    Tags

    TTPs

    Registry Run Keys / Startup FolderModify Registry
  • Checks installed software on the system

    Description

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

    Tags

    TTPs

    Query Registry
  • Checks whether UAC is enabled

    Tags

    TTPs

    System Information Discovery
  • Enumerates connected drives

    Description

    Attempts to read the root path of hard drives other than the default C: drive.

    TTPs

    Query RegistryPeripheral Device DiscoverySystem Information Discovery
  • Legitimate hosting services abused for malware hosting/C2

    TTPs

    Web Service
  • Drops file in System32 directory

  • Suspicious use of NtSetInformationThreadHideFromDebugger

  • Suspicious use of SetThreadContext

Related Tasks

MITRE ATT&CK Matrix
Command and Control
    Credential Access
    Execution
      Exfiltration
        Impact
          Initial Access
            Lateral Movement
              Privilege Escalation