Analysis

  • max time kernel
    141s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    25-03-2023 01:22

General

  • Target

    8079494d11dee40b555bde3a9af104f0d9ea48ee64b89256cdd3200b38d91ccf.exe

  • Size

    6.2MB

  • MD5

    491cdabdc48d761e951d8f8cf9defa9e

  • SHA1

    751fe62c846cc434a362baa74db9a2632658792a

  • SHA256

    8079494d11dee40b555bde3a9af104f0d9ea48ee64b89256cdd3200b38d91ccf

  • SHA512

    3e722d19bc1c29f3661240d3d9d5fb1ea4cbdffd506143ce77bc5a42ed339c112e6d924a7eef3b828bffb22084ca03f29601578677ac7ac4a0e79effda6fd349

  • SSDEEP

    196608:sFNE8AU8Ddhot2JiezLb3TwjZ3oBsPAeZed9GMYqHXefeg1D4m37em7LQRc:sFrATJJ53yZ3oBsPAeZed9GMYqHXefed

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 18 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8079494d11dee40b555bde3a9af104f0d9ea48ee64b89256cdd3200b38d91ccf.exe
    "C:\Users\Admin\AppData\Local\Temp\8079494d11dee40b555bde3a9af104f0d9ea48ee64b89256cdd3200b38d91ccf.exe"
    1⤵
    • Maps connected drives based on registry
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1716
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Roaming\C3B5D6670CD0909A\entail.exe
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1760
      • C:\Users\Admin\AppData\Roaming\C3B5D6670CD0909A\entail.exe
        C:\Users\Admin\AppData\Roaming\C3B5D6670CD0909A\entail.exe
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1708
        • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
          "C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe"
          4⤵
          • Identifies VirtualBox via ACPI registry values (likely anti-VM)
          • Checks BIOS information in registry
          • Executes dropped EXE
          • Checks whether UAC is enabled
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious behavior: EnumeratesProcesses
          PID:1400
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout -t 5 && del "C:\Users\Admin\AppData\Local\Temp\8079494d11dee40b555bde3a9af104f0d9ea48ee64b89256cdd3200b38d91ccf.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1636
      • C:\Windows\SysWOW64\timeout.exe
        timeout -t 5
        3⤵
        • Delays execution with timeout.exe
        PID:1720

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\1397.tmp
    Filesize

    32B

    MD5

    3b33d980229e76222b961d17fd5aa43d

    SHA1

    43a761a68478e66db8f1dbce4b7a56ff2ce4fd20

    SHA256

    bd6e8000665e82408208cdf1fcc74a925c13c5a6492c252ca0153ce19f4141d3

    SHA512

    8e4e22744ed0e62a86d2df15df709b1498beea7359b64ac086679ef0fbceacd94ab9fca452b1234bbef17a87f5c6200104e84b934b8ed4bad3b1d26c68b5729d

  • C:\Users\Admin\AppData\Local\Temp\1437.tmp
    Filesize

    71KB

    MD5

    6a3c2fe239e67cd5804a699b9aa54b07

    SHA1

    018091f0c903173dec18cd10e0e00889f0717d67

    SHA256

    160b3bbb5a6845c2bc01355921c466e8b3ecc05de44888e5a4b27962898d7168

    SHA512

    aaf0f6171b6e4f6b143369a074357bac219e7efa56b6bee77988baa9264d76231b0c3df6922d2b2c95a1acf9901b81bcc76f783284fc5be02a789199d4dcbe37

  • C:\Users\Admin\AppData\Roaming\C3B5D6670CD0909A\entail.exe
    Filesize

    2.7MB

    MD5

    4066df95b54ae73ba0e8b9242c5f1290

    SHA1

    3eb35649ea5cf7ad65e2180d4643c5465e3ac8fa

    SHA256

    4e57431e0d6b2f4b41ec9b6ab03e89b45752d2fd11ce5121be563d894a22d36c

    SHA512

    9e95e860d84f3127706d2a94d2388c315e160c568ac4c4b01a7743da6f57fc04f759edd9607a0ebb8305df98d7739cc04ca152c7448117222d04169d5e1184ea

  • C:\Users\Admin\AppData\Roaming\C3B5D6670CD0909A\entail.exe
    Filesize

    2.7MB

    MD5

    4066df95b54ae73ba0e8b9242c5f1290

    SHA1

    3eb35649ea5cf7ad65e2180d4643c5465e3ac8fa

    SHA256

    4e57431e0d6b2f4b41ec9b6ab03e89b45752d2fd11ce5121be563d894a22d36c

    SHA512

    9e95e860d84f3127706d2a94d2388c315e160c568ac4c4b01a7743da6f57fc04f759edd9607a0ebb8305df98d7739cc04ca152c7448117222d04169d5e1184ea

  • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
    Filesize

    2.7MB

    MD5

    4066df95b54ae73ba0e8b9242c5f1290

    SHA1

    3eb35649ea5cf7ad65e2180d4643c5465e3ac8fa

    SHA256

    4e57431e0d6b2f4b41ec9b6ab03e89b45752d2fd11ce5121be563d894a22d36c

    SHA512

    9e95e860d84f3127706d2a94d2388c315e160c568ac4c4b01a7743da6f57fc04f759edd9607a0ebb8305df98d7739cc04ca152c7448117222d04169d5e1184ea

  • \Users\Admin\AppData\Roaming\C3B5D6670CD0909A\entail.exe
    Filesize

    2.7MB

    MD5

    4066df95b54ae73ba0e8b9242c5f1290

    SHA1

    3eb35649ea5cf7ad65e2180d4643c5465e3ac8fa

    SHA256

    4e57431e0d6b2f4b41ec9b6ab03e89b45752d2fd11ce5121be563d894a22d36c

    SHA512

    9e95e860d84f3127706d2a94d2388c315e160c568ac4c4b01a7743da6f57fc04f759edd9607a0ebb8305df98d7739cc04ca152c7448117222d04169d5e1184ea

  • \Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
    Filesize

    2.7MB

    MD5

    4066df95b54ae73ba0e8b9242c5f1290

    SHA1

    3eb35649ea5cf7ad65e2180d4643c5465e3ac8fa

    SHA256

    4e57431e0d6b2f4b41ec9b6ab03e89b45752d2fd11ce5121be563d894a22d36c

    SHA512

    9e95e860d84f3127706d2a94d2388c315e160c568ac4c4b01a7743da6f57fc04f759edd9607a0ebb8305df98d7739cc04ca152c7448117222d04169d5e1184ea

  • memory/1400-152-0x0000000000A40000-0x0000000001130000-memory.dmp
    Filesize

    6.9MB

  • memory/1400-154-0x0000000000A40000-0x0000000001130000-memory.dmp
    Filesize

    6.9MB

  • memory/1400-153-0x0000000000A40000-0x0000000001130000-memory.dmp
    Filesize

    6.9MB

  • memory/1400-151-0x0000000000A40000-0x0000000001130000-memory.dmp
    Filesize

    6.9MB

  • memory/1400-150-0x0000000000A40000-0x0000000001130000-memory.dmp
    Filesize

    6.9MB

  • memory/1400-156-0x0000000000A40000-0x0000000001130000-memory.dmp
    Filesize

    6.9MB

  • memory/1708-140-0x0000000000D60000-0x0000000001450000-memory.dmp
    Filesize

    6.9MB

  • memory/1708-142-0x0000000000D60000-0x0000000001450000-memory.dmp
    Filesize

    6.9MB

  • memory/1708-143-0x0000000000D60000-0x0000000001450000-memory.dmp
    Filesize

    6.9MB

  • memory/1708-141-0x0000000000D60000-0x0000000001450000-memory.dmp
    Filesize

    6.9MB

  • memory/1708-148-0x0000000000D60000-0x0000000001450000-memory.dmp
    Filesize

    6.9MB

  • memory/1708-139-0x0000000000D60000-0x0000000001450000-memory.dmp
    Filesize

    6.9MB

  • memory/1708-138-0x0000000000D60000-0x0000000001450000-memory.dmp
    Filesize

    6.9MB

  • memory/1716-55-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

  • memory/1716-57-0x0000000000400000-0x0000000000DCF000-memory.dmp
    Filesize

    9.8MB

  • memory/1716-56-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

  • memory/1716-54-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

  • memory/1760-137-0x0000000002090000-0x0000000002780000-memory.dmp
    Filesize

    6.9MB