Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    20-01-2022 19:50

General

  • Target

    6b73040840cf675d89f95e643476ce10.exe

  • Size

    3.4MB

  • MD5

    6b73040840cf675d89f95e643476ce10

  • SHA1

    04b5c30cdb12d2f271e7111bb1e3b7f25927642b

  • SHA256

    3a650900dde9c97d1c23110b2b04ba2c5d861e48f05d894d1022e8875361869b

  • SHA512

    041a0ff85149de77e5a1a0fd3c6f140ce93b5a8328b3390ac12d95abca4e5f437d7d6b4954b9585cdb5e4ac93d790782e06f02c637e64f33e892104efd9a8db5

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Executes dropped EXE 1 IoCs
  • Sets service image path in registry 2 TTPs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Drops startup file 1 IoCs
  • Themida packer 8 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies data under HKEY_USERS 41 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6b73040840cf675d89f95e643476ce10.exe
    "C:\Users\Admin\AppData\Local\Temp\6b73040840cf675d89f95e643476ce10.exe"
    1⤵
    • Checks BIOS information in registry
    • Drops startup file
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of WriteProcessMemory
    PID:3276
    • C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
      "C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe"
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: AddClipboardFormatListener
      PID:3724
  • C:\Windows\System32\WaaSMedicAgent.exe
    C:\Windows\System32\WaaSMedicAgent.exe 7f4aebc2778df78ef80e2fb36105e973 FArvTXUXDkOKeA873lIodQ.0.1.0.0.0
    1⤵
    • Modifies data under HKEY_USERS
    PID:944

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

1
T1112

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
    MD5

    6b73040840cf675d89f95e643476ce10

    SHA1

    04b5c30cdb12d2f271e7111bb1e3b7f25927642b

    SHA256

    3a650900dde9c97d1c23110b2b04ba2c5d861e48f05d894d1022e8875361869b

    SHA512

    041a0ff85149de77e5a1a0fd3c6f140ce93b5a8328b3390ac12d95abca4e5f437d7d6b4954b9585cdb5e4ac93d790782e06f02c637e64f33e892104efd9a8db5

  • C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
    MD5

    6b73040840cf675d89f95e643476ce10

    SHA1

    04b5c30cdb12d2f271e7111bb1e3b7f25927642b

    SHA256

    3a650900dde9c97d1c23110b2b04ba2c5d861e48f05d894d1022e8875361869b

    SHA512

    041a0ff85149de77e5a1a0fd3c6f140ce93b5a8328b3390ac12d95abca4e5f437d7d6b4954b9585cdb5e4ac93d790782e06f02c637e64f33e892104efd9a8db5

  • memory/3276-130-0x00007FF79DBA0000-0x00007FF79E4C4000-memory.dmp
    Filesize

    9.1MB

  • memory/3276-131-0x00007FF79DBA0000-0x00007FF79E4C4000-memory.dmp
    Filesize

    9.1MB

  • memory/3276-132-0x00007FF79DBA0000-0x00007FF79E4C4000-memory.dmp
    Filesize

    9.1MB

  • memory/3724-135-0x00007FF6DE2B0000-0x00007FF6DEBD4000-memory.dmp
    Filesize

    9.1MB

  • memory/3724-136-0x00007FF6DE2B0000-0x00007FF6DEBD4000-memory.dmp
    Filesize

    9.1MB

  • memory/3724-137-0x00007FF6DE2B0000-0x00007FF6DEBD4000-memory.dmp
    Filesize

    9.1MB