Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    01-03-2021 17:20

General

  • Target

    invoice against the VAT Payment.exe

  • Size

    2.8MB

  • MD5

    f2483ffa1d7e980ef6a9e208a2297464

  • SHA1

    18e409e5f3e363e4032c17cbff75ec21d6b3d492

  • SHA256

    33e1b67ad4d3fa79b5962739474792e251306c7474e9a9e3afa0fc6d5e93b4b4

  • SHA512

    0702b1c67163e8ac359d65817796ff7f9622db23e79083662e5bc6e67eafd4c2dd2073e7bcb7599677a9ecc1d8295c095c0d18c4f2e99732fe2991f5eea1c136

Malware Config

Signatures

  • XenArmor Suite

    XenArmor is as suite of password recovery tools for various application.

  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 3 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 23 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 26 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 10 IoCs
  • Opens file in notepad (likely ransom note) 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: RenamesItself 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\invoice against the VAT Payment.exe
    "C:\Users\Admin\AppData\Local\Temp\invoice against the VAT Payment.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies registry class
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:540
    • C:\Windows\System32\fodhelper.exe
      "C:\Windows\System32\fodhelper.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3636
      • C:\Users\Admin\AppData\Local\notepad\notepad.exe
        "C:\Users\Admin\AppData\Local\notepad\notepad.exe" -prs 540
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • Modifies registry class
        • Suspicious behavior: RenamesItself
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3644
        • C:\Users\Admin\AppData\Local\notepad\notepad.exe
          -a "C:\Users\Admin\AppData\Local\ea3cd9b6\plg\wm9PSrVV.json"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Opens file in notepad (likely ransom note)
          • Suspicious use of WriteProcessMemory
          PID:2364
          • C:\Users\Admin\AppData\Local\notepad\notepad.exe
            -a "C:\Users\Admin\AppData\Local\Temp\unk.xml"
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Opens file in notepad (likely ransom note)
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:412

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\unk.xml
    MD5

    77e6621fd939338d3f19f3dd948ecf43

    SHA1

    53df8b3a76c5d6c35a99aa7759ff3bd7ec46588c

    SHA256

    9cb90c1d5c31396519b1f6c73899c062b6ccbd9a8cfc7c0bb054fe88c7825867

    SHA512

    6e812be4c3b958f0497f91e0eb2e8b77d4a13e2b7af750a30ec9bff3dde09a233b5510ee6333a9ab3182c11ab6c3d38789921d517449c6a03164e216cee43c4f

  • C:\Users\Admin\AppData\Local\ea3cd9b6\plg\wm9PSrVV.json
    MD5

    77e6621fd939338d3f19f3dd948ecf43

    SHA1

    53df8b3a76c5d6c35a99aa7759ff3bd7ec46588c

    SHA256

    9cb90c1d5c31396519b1f6c73899c062b6ccbd9a8cfc7c0bb054fe88c7825867

    SHA512

    6e812be4c3b958f0497f91e0eb2e8b77d4a13e2b7af750a30ec9bff3dde09a233b5510ee6333a9ab3182c11ab6c3d38789921d517449c6a03164e216cee43c4f

  • C:\Users\Admin\AppData\Local\notepad\License.XenArmor
    MD5

    4f3bde9212e17ef18226866d6ac739b6

    SHA1

    732733bec8314beb81437e60876ffa75e72ae6cd

    SHA256

    212173a405c78d70f90e8ec0699a60ed2f4a9f3a8070de62eabd666c268fb174

    SHA512

    10b7cdae0b9a7b0f8e1bfc66a60675fa9b25c523864d5ae3da243f4e6e4c5194f3bd92af57ac956157442f66414bdd3393d0a1e5ba4ef0f192561e8524d4e744

  • C:\Users\Admin\AppData\Local\notepad\License.XenArmor
    MD5

    bf5da170f7c9a8eae88d1cb1a191ff80

    SHA1

    dd1b991a1b03587a5d1edc94e919a2070e325610

    SHA256

    e5d5110feb21939d82d962981aeaaafc4643b40a9b87cbed800ace82135d57cd

    SHA512

    9e32247d8556fd6efffbf7b6b9c325652d8c4b223b0fa38020879171476a49ab1f64d8897b5d8d92b79c5484fd9d5899be26ca5f664ee1f9c2acb0857084121e

  • C:\Users\Admin\AppData\Local\notepad\Unknown.dll
    MD5

    86114faba7e1ec4a667d2bcb2e23f024

    SHA1

    670df6e1ba1dc6bece046e8b2e573dd36748245e

    SHA256

    568da887725ccfdc4c5aae3ff66792fe60eca4e0818338f6a8434be66a6fe46d

    SHA512

    d26ee0da6ccd4022982cf848c46e40f6781b667e39d0c5daf5ea8d74c44e55c55a5f7590a4d2a60aa1911358ca783c4276a9b4e6311c4cea20df1ebd4f7f457f

  • C:\Users\Admin\AppData\Local\notepad\notepad.exe
    MD5

    f2483ffa1d7e980ef6a9e208a2297464

    SHA1

    18e409e5f3e363e4032c17cbff75ec21d6b3d492

    SHA256

    33e1b67ad4d3fa79b5962739474792e251306c7474e9a9e3afa0fc6d5e93b4b4

    SHA512

    0702b1c67163e8ac359d65817796ff7f9622db23e79083662e5bc6e67eafd4c2dd2073e7bcb7599677a9ecc1d8295c095c0d18c4f2e99732fe2991f5eea1c136

  • C:\Users\Admin\AppData\Local\notepad\notepad.exe
    MD5

    f2483ffa1d7e980ef6a9e208a2297464

    SHA1

    18e409e5f3e363e4032c17cbff75ec21d6b3d492

    SHA256

    33e1b67ad4d3fa79b5962739474792e251306c7474e9a9e3afa0fc6d5e93b4b4

    SHA512

    0702b1c67163e8ac359d65817796ff7f9622db23e79083662e5bc6e67eafd4c2dd2073e7bcb7599677a9ecc1d8295c095c0d18c4f2e99732fe2991f5eea1c136

  • C:\Users\Admin\AppData\Local\notepad\notepad.exe
    MD5

    f2483ffa1d7e980ef6a9e208a2297464

    SHA1

    18e409e5f3e363e4032c17cbff75ec21d6b3d492

    SHA256

    33e1b67ad4d3fa79b5962739474792e251306c7474e9a9e3afa0fc6d5e93b4b4

    SHA512

    0702b1c67163e8ac359d65817796ff7f9622db23e79083662e5bc6e67eafd4c2dd2073e7bcb7599677a9ecc1d8295c095c0d18c4f2e99732fe2991f5eea1c136

  • \Users\Admin\AppData\Local\notepad\Unknown.dll
    MD5

    86114faba7e1ec4a667d2bcb2e23f024

    SHA1

    670df6e1ba1dc6bece046e8b2e573dd36748245e

    SHA256

    568da887725ccfdc4c5aae3ff66792fe60eca4e0818338f6a8434be66a6fe46d

    SHA512

    d26ee0da6ccd4022982cf848c46e40f6781b667e39d0c5daf5ea8d74c44e55c55a5f7590a4d2a60aa1911358ca783c4276a9b4e6311c4cea20df1ebd4f7f457f

  • memory/412-13-0x00000000006FC1D0-mapping.dmp
  • memory/412-12-0x0000000000400000-0x00000000006FE000-memory.dmp
    Filesize

    3.0MB

  • memory/412-19-0x0000000000400000-0x00000000006FE000-memory.dmp
    Filesize

    3.0MB

  • memory/540-2-0x0000000003710000-0x0000000003711000-memory.dmp
    Filesize

    4KB

  • memory/540-3-0x0000000003910000-0x0000000003911000-memory.dmp
    Filesize

    4KB

  • memory/2364-10-0x00000000008D9FE0-mapping.dmp
  • memory/2364-15-0x0000000000400000-0x00000000008DC000-memory.dmp
    Filesize

    4.9MB

  • memory/2364-9-0x0000000000400000-0x00000000008DC000-memory.dmp
    Filesize

    4.9MB

  • memory/3636-4-0x0000000000000000-mapping.dmp
  • memory/3644-8-0x0000000003740000-0x0000000003741000-memory.dmp
    Filesize

    4KB

  • memory/3644-7-0x0000000003540000-0x0000000003541000-memory.dmp
    Filesize

    4KB

  • memory/3644-5-0x0000000000000000-mapping.dmp