Analysis

  • max time kernel
    148s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    21-03-2023 01:19

General

  • Target

    e39e047850594b792efd9c8ad328c9c32e15c77e9b4576d1c664703c7dcc8fdc.exe

  • Size

    6.3MB

  • MD5

    5e62ce2c758268030b2e673252c7c199

  • SHA1

    80963e2c068c9b75bec6214e817435cbba17bbe0

  • SHA256

    e39e047850594b792efd9c8ad328c9c32e15c77e9b4576d1c664703c7dcc8fdc

  • SHA512

    93493a9e5f89f616eb3449bbb41c9027e3df69af6250f121ec993e22250265a5a774d4d8a6f9d08a06129278a0c16434c5d28a73d751f25af78e2d5c02459eaa

  • SSDEEP

    98304:WI9ZCfZk3RIGgWhMIjVRr7SaB/JjNv+w3S+/KWpnMgcKrVuOtGTIDzO+kA6w2:WQoZ1zWhMIpBdJp+XGKinMg3u9MzeO2

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\e39e047850594b792efd9c8ad328c9c32e15c77e9b4576d1c664703c7dcc8fdc.exe
    "C:\Users\Admin\AppData\Local\Temp\e39e047850594b792efd9c8ad328c9c32e15c77e9b4576d1c664703c7dcc8fdc.exe"
    1⤵
    • Maps connected drives based on registry
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Roaming\7AFC423B1A251A52\enseat.exe
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1592
      • C:\Users\Admin\AppData\Roaming\7AFC423B1A251A52\enseat.exe
        C:\Users\Admin\AppData\Roaming\7AFC423B1A251A52\enseat.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:1424
        • 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:2012
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout -t 5 && del "C:\Users\Admin\AppData\Local\Temp\e39e047850594b792efd9c8ad328c9c32e15c77e9b4576d1c664703c7dcc8fdc.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1344
      • C:\Windows\SysWOW64\timeout.exe
        timeout -t 5
        3⤵
        • Delays execution with timeout.exe
        PID:1744

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\213E.tmp
    Filesize

    32B

    MD5

    024da3236c7646cb37b37e138501da95

    SHA1

    d0b2c44720c8069e7b2af5d80071cfc093fc8706

    SHA256

    533978fcceeeda6fae9686b55420d6b665aca67d77d00b81d09dff959ef715f3

    SHA512

    999bff9518efa3b4cc27d276fd81011ad35e3af884025da447de81985e389553c7b5fcba9f6cd38d09b3f180945c87579a3b8d5240a16acfc9df4c24ffede6c4

  • C:\Users\Admin\AppData\Local\Temp\21DE.tmp
    Filesize

    71KB

    MD5

    2beb695add0546f6a18496aae58b2558

    SHA1

    1fd818202a94825c56ad7a7793bea87c6f02960e

    SHA256

    132cb7037ada7d8563c5b8cf64796ed22b0fbc1ccefbbbf5faa3c18545b289ed

    SHA512

    e80fa42ab27afa16e0f6f72639077be7da3e73f7c7b4cecbe0d24637ee76334de77a2b61e7c3afab4e3750e53a93baa68d3cdb9c1eb55fb9a5d580cff94f21f2

  • C:\Users\Admin\AppData\Roaming\7AFC423B1A251A52\enseat.exe
    Filesize

    2.6MB

    MD5

    a16b94a31d99ed985ce7c9d49a1ba7b7

    SHA1

    3f9802ec2bf22957537b1a8a986d1110d6d9dac4

    SHA256

    45d193a351f8a86a8684df974a9a16a8621e9c588884f74cd0299643cac0ad5d

    SHA512

    138d7e8ba83ad0fb1de87777568db5aacef6c19aecc9251291e8a4b9d34cf3ace8df216ce8434a53342348fab3d3c30b7c689da806936f76310540fb10f8f4f6

  • C:\Users\Admin\AppData\Roaming\7AFC423B1A251A52\enseat.exe
    Filesize

    2.6MB

    MD5

    a16b94a31d99ed985ce7c9d49a1ba7b7

    SHA1

    3f9802ec2bf22957537b1a8a986d1110d6d9dac4

    SHA256

    45d193a351f8a86a8684df974a9a16a8621e9c588884f74cd0299643cac0ad5d

    SHA512

    138d7e8ba83ad0fb1de87777568db5aacef6c19aecc9251291e8a4b9d34cf3ace8df216ce8434a53342348fab3d3c30b7c689da806936f76310540fb10f8f4f6

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

    2.6MB

    MD5

    a16b94a31d99ed985ce7c9d49a1ba7b7

    SHA1

    3f9802ec2bf22957537b1a8a986d1110d6d9dac4

    SHA256

    45d193a351f8a86a8684df974a9a16a8621e9c588884f74cd0299643cac0ad5d

    SHA512

    138d7e8ba83ad0fb1de87777568db5aacef6c19aecc9251291e8a4b9d34cf3ace8df216ce8434a53342348fab3d3c30b7c689da806936f76310540fb10f8f4f6

  • \Users\Admin\AppData\Roaming\7AFC423B1A251A52\enseat.exe
    Filesize

    2.6MB

    MD5

    a16b94a31d99ed985ce7c9d49a1ba7b7

    SHA1

    3f9802ec2bf22957537b1a8a986d1110d6d9dac4

    SHA256

    45d193a351f8a86a8684df974a9a16a8621e9c588884f74cd0299643cac0ad5d

    SHA512

    138d7e8ba83ad0fb1de87777568db5aacef6c19aecc9251291e8a4b9d34cf3ace8df216ce8434a53342348fab3d3c30b7c689da806936f76310540fb10f8f4f6

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

    2.6MB

    MD5

    a16b94a31d99ed985ce7c9d49a1ba7b7

    SHA1

    3f9802ec2bf22957537b1a8a986d1110d6d9dac4

    SHA256

    45d193a351f8a86a8684df974a9a16a8621e9c588884f74cd0299643cac0ad5d

    SHA512

    138d7e8ba83ad0fb1de87777568db5aacef6c19aecc9251291e8a4b9d34cf3ace8df216ce8434a53342348fab3d3c30b7c689da806936f76310540fb10f8f4f6

  • memory/1424-140-0x0000000001190000-0x0000000001876000-memory.dmp
    Filesize

    6.9MB

  • memory/1424-142-0x0000000001190000-0x0000000001876000-memory.dmp
    Filesize

    6.9MB

  • memory/1424-137-0x0000000001190000-0x0000000001876000-memory.dmp
    Filesize

    6.9MB

  • memory/1424-138-0x0000000001190000-0x0000000001876000-memory.dmp
    Filesize

    6.9MB

  • memory/1424-139-0x0000000001190000-0x0000000001876000-memory.dmp
    Filesize

    6.9MB

  • memory/1424-148-0x0000000001190000-0x0000000001876000-memory.dmp
    Filesize

    6.9MB

  • memory/1592-141-0x0000000002040000-0x0000000002726000-memory.dmp
    Filesize

    6.9MB

  • memory/2012-153-0x0000000000A80000-0x0000000001166000-memory.dmp
    Filesize

    6.9MB

  • memory/2012-150-0x0000000000A80000-0x0000000001166000-memory.dmp
    Filesize

    6.9MB

  • memory/2012-151-0x0000000000A80000-0x0000000001166000-memory.dmp
    Filesize

    6.9MB

  • memory/2012-152-0x0000000000A80000-0x0000000001166000-memory.dmp
    Filesize

    6.9MB

  • memory/2012-154-0x0000000000A80000-0x0000000001166000-memory.dmp
    Filesize

    6.9MB

  • memory/2012-155-0x0000000000A80000-0x0000000001166000-memory.dmp
    Filesize

    6.9MB

  • memory/2012-156-0x0000000000A80000-0x0000000001166000-memory.dmp
    Filesize

    6.9MB

  • memory/2024-56-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

  • memory/2024-55-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

  • memory/2024-54-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

  • memory/2024-57-0x0000000000400000-0x0000000000E11000-memory.dmp
    Filesize

    10.1MB