General
Target

8fd56b6131390d2d8c7ccb008304aa74.exe

Filesize

2MB

Completed

26-09-2021 13:53

Task

behavioral1

Score
9/10
MD5

8fd56b6131390d2d8c7ccb008304aa74

SHA1

4042cfb3aacfcc899c1753b4bb3d7e692219e6f0

SHA256

b0586fab8481d6a24fa8b4213a3eb6b38d88945815e53802f36e30cd0f92b1df

SHA256

8750fc17cce5fbbf1b9fd3519ea602ac387a28d1cf5b2fe95eab463374215c5f2f2ca951aaa05180569f546349bd56ef23ac6a47c5946eedfb0a57636f58fd4e

Malware Config
Signatures 10

Filter: none

Collection
Credential Access
Defense Evasion
Discovery
  • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    Tags

    TTPs

    Query RegistryVirtualization/Sandbox Evasion
  • Checks BIOS information in registry
    8fd56b6131390d2d8c7ccb008304aa74.exe

    Description

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

    TTPs

    Query RegistrySystem Information Discovery

    Reported IOCs

    descriptioniocprocess
    Key value queried\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion8fd56b6131390d2d8c7ccb008304aa74.exe
    Key value queried\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion8fd56b6131390d2d8c7ccb008304aa74.exe
  • Reads user/profile data of web browsers

    Description

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

    TTPs

    Data from Local SystemCredentials in Files
  • Themida packer

    Description

    Detects Themida, an advanced Windows software protection system.

    Tags

    Reported IOCs

    resourceyara_rule
    behavioral1/memory/1840-62-0x00000000011E0000-0x00000000011E1000-memory.dmpthemida
  • Accesses cryptocurrency files/wallets, possible credential harvesting

    Tags

    TTPs

    Data from Local SystemCredentials in Files
  • 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
    8fd56b6131390d2d8c7ccb008304aa74.exe

    TTPs

    System Information Discovery

    Reported IOCs

    descriptioniocprocess
    Key value queried\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA8fd56b6131390d2d8c7ccb008304aa74.exe
  • Suspicious use of NtSetInformationThreadHideFromDebugger
    8fd56b6131390d2d8c7ccb008304aa74.exe

    Reported IOCs

    pidprocess
    18408fd56b6131390d2d8c7ccb008304aa74.exe
  • Suspicious behavior: EnumeratesProcesses
    8fd56b6131390d2d8c7ccb008304aa74.exe

    Reported IOCs

    pidprocess
    18408fd56b6131390d2d8c7ccb008304aa74.exe
    18408fd56b6131390d2d8c7ccb008304aa74.exe
    18408fd56b6131390d2d8c7ccb008304aa74.exe
  • Suspicious use of AdjustPrivilegeToken
    8fd56b6131390d2d8c7ccb008304aa74.exe

    Reported IOCs

    descriptionpidprocess
    Token: SeDebugPrivilege18408fd56b6131390d2d8c7ccb008304aa74.exe
Processes 1
  • C:\Users\Admin\AppData\Local\Temp\8fd56b6131390d2d8c7ccb008304aa74.exe
    "C:\Users\Admin\AppData\Local\Temp\8fd56b6131390d2d8c7ccb008304aa74.exe"
    Checks BIOS information in registry
    Checks whether UAC is enabled
    Suspicious use of NtSetInformationThreadHideFromDebugger
    Suspicious behavior: EnumeratesProcesses
    Suspicious use of AdjustPrivilegeToken
    PID:1840
Network
MITRE ATT&CK Matrix
Command and Control
    Credential Access
    Execution
      Exfiltration
        Impact
          Initial Access
            Lateral Movement
              Persistence
                Privilege Escalation
                  Replay Monitor
                  00:00 00:00
                  Downloads
                  • memory/1840-60-0x0000000074D91000-0x0000000074D93000-memory.dmp

                  • memory/1840-62-0x00000000011E0000-0x00000000011E1000-memory.dmp

                  • memory/1840-64-0x00000000004B0000-0x00000000004B1000-memory.dmp