Analysis

  • max time kernel
    150s
  • max time network
    119s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250210-en
  • resource tags

    arch:x64arch:x86image:win11-20250210-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    10-02-2025 20:43

General

  • Target

    Kierkegaardske/Afvarsler.voc

  • Size

    261KB

  • MD5

    e1952b65b5492ae819e2094798fc7ee0

  • SHA1

    4a0798b2157e8f4aa2d48f593f2fedb8f5534393

  • SHA256

    2e0361f0e95687ce8aa8a99e3b47a2566e6181b6281eaf14866695da397618e8

  • SHA512

    73f08396e28d4e6fe145c62b5f56c40aeb3c7c80d9e407f02f4ac1f3fa90fe7e9137c2a904fe28bf6965f90f3b47a0745ed4b1aee0e7a97948ad749ebd647dd2

  • SSDEEP

    6144:jeOAbR+HadZ7/HmNaB/FhPwahOGzi+TFxzrFg6MhkgAQ3cw11:j/U+aFeNkPrhFTEhTAQ3cw11

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 7 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Downloads MZ/PE file 1 IoCs
  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Executes dropped EXE 10 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 36 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies Internet Explorer settings 1 TTPs 24 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 8 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • System policy modification 1 TTPs 4 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Program Files\VideoLAN\VLC\vlc.exe
    "C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\AppData\Local\Temp\Kierkegaardske\Afvarsler.voc"
    1⤵
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    PID:5224
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PG9lbSBwcm9kdWN0X21hbnVmYWN0dXJlcj0iIiBwcm9kdWN0X25hbWU9IiIvPjxleHAgZXRhZz0iJnF1b3Q7RSt4YkF6Nlk2c1UxMjg5YlM2cWw0VlJMYmtqZkJVR1RNSnNqckhyNDRpST0mcXVvdDsiLz48YXBwIGFwcGlkPSJ7OEE2OUQzNDUtRDU2NC00NjNjLUFGRjEtQTY5RDlFNTMwRjk2fSIgdmVyc2lvbj0iMTIzLjAuNjMxMi4xMjMiIG5leHR2ZXJzaW9uPSIiIGxhbmc9ImVuIiBicmFuZD0iR0dMUyIgY2xpZW50PSIiIGluc3RhbGxhZ2U9IjAiIGluc3RhbGxkYXRldGltZT0iMTczOTE4Mzk2NiIgb29iZV9pbnN0YWxsX3RpbWU9IjEzMzgzNjU1NjQwMTY2MDAwMCI-PGV2ZW50IGV2ZW50dHlwZT0iMzEiIGV2ZW50cmVzdWx0PSIxIiBlcnJvcmNvZGU9IjAiIGV4dHJhY29kZTE9IjIxNzk4NjIiIHN5c3RlbV91cHRpbWVfdGlja3M9IjQ4NTEyMDk3NTQiLz48L2FwcD48L3JlcXVlc3Q-
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:3692
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{00278AC7-4FD0-4A77-A090-D19109419510}\MicrosoftEdge_X64_132.0.2957.140.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{00278AC7-4FD0-4A77-A090-D19109419510}\MicrosoftEdge_X64_132.0.2957.140.exe" --msedge --verbose-logging --do-not-launch-msedge --system-level --channel=stable
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4140
    • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{00278AC7-4FD0-4A77-A090-D19109419510}\EDGEMITMP_8BBF0.tmp\setup.exe
      "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{00278AC7-4FD0-4A77-A090-D19109419510}\EDGEMITMP_8BBF0.tmp\setup.exe" --install-archive="C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{00278AC7-4FD0-4A77-A090-D19109419510}\MicrosoftEdge_X64_132.0.2957.140.exe" --msedge --verbose-logging --do-not-launch-msedge --system-level --channel=stable
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Executes dropped EXE
      • Installs/modifies Browser Helper Object
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:6136
      • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{00278AC7-4FD0-4A77-A090-D19109419510}\EDGEMITMP_8BBF0.tmp\setup.exe
        "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{00278AC7-4FD0-4A77-A090-D19109419510}\EDGEMITMP_8BBF0.tmp\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\SystemTemp\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=132.0.6834.160 "--annotation=exe=C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{00278AC7-4FD0-4A77-A090-D19109419510}\EDGEMITMP_8BBF0.tmp\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=132.0.2957.140 --initial-client-data=0x23c,0x240,0x244,0x218,0x248,0x7ff66cbea818,0x7ff66cbea824,0x7ff66cbea830
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        PID:3056
      • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{00278AC7-4FD0-4A77-A090-D19109419510}\EDGEMITMP_8BBF0.tmp\setup.exe
        "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{00278AC7-4FD0-4A77-A090-D19109419510}\EDGEMITMP_8BBF0.tmp\setup.exe" --msedge --channel=stable --system-level --verbose-logging --create-shortcuts=2 --install-level=1
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Modifies data under HKEY_USERS
        • Suspicious use of WriteProcessMemory
        PID:128
        • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{00278AC7-4FD0-4A77-A090-D19109419510}\EDGEMITMP_8BBF0.tmp\setup.exe
          "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{00278AC7-4FD0-4A77-A090-D19109419510}\EDGEMITMP_8BBF0.tmp\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\SystemTemp\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=132.0.6834.160 "--annotation=exe=C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{00278AC7-4FD0-4A77-A090-D19109419510}\EDGEMITMP_8BBF0.tmp\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=132.0.2957.140 --initial-client-data=0x23c,0x240,0x244,0x218,0x248,0x7ff66cbea818,0x7ff66cbea824,0x7ff66cbea830
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          PID:2588
      • C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --msedge --channel=stable --register-package-identity --verbose-logging --system-level
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:5592
        • C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\SystemTemp\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=132.0.6834.160 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=132.0.2957.140 --initial-client-data=0x23c,0x240,0x244,0x218,0x248,0x7ff60caaa818,0x7ff60caaa824,0x7ff60caaa830
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          PID:2072
      • C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --msedge --channel=stable --remove-deprecated-packages --verbose-logging --system-level
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:4892
        • C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\SystemTemp\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=132.0.6834.160 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=132.0.2957.140 --initial-client-data=0x23c,0x240,0x244,0x218,0x248,0x7ff60caaa818,0x7ff60caaa824,0x7ff60caaa830
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          PID:1064
      • C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --msedge --channel=stable --update-game-assist-package --verbose-logging --system-level
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:420
        • C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\SystemTemp\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=132.0.6834.160 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=132.0.2957.140 --initial-client-data=0x23c,0x240,0x244,0x218,0x248,0x7ff60caaa818,0x7ff60caaa824,0x7ff60caaa830
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          PID:5136

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{00278AC7-4FD0-4A77-A090-D19109419510}\EDGEMITMP_8BBF0.tmp\setup.exe

    Filesize

    6.6MB

    MD5

    b4c8ad75087b8634d4f04dc6f92da9aa

    SHA1

    7efaa2472521c79d58c4ef18a258cc573704fb5d

    SHA256

    522a25568bb503cf8b44807661f31f0921dee91d37691bf399868733205690bf

    SHA512

    5094505b33a848badcffd6b3b93aad9ad73f391e201dee052376c4f8573ba351f0b8c102131216088ffb38d0ed7b5fe70ba95c3ac2c33a50c993584fe7c435e3

  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

    Filesize

    3.7MB

    MD5

    3646786aea064c0845f5bb1b8e976985

    SHA1

    a31ba2d2192898d4c0a01511395bdf87b0e53873

    SHA256

    a129a6de7b90500483226192b260eaca1ee116a007771d421aa3eee38af48d6f

    SHA512

    145f8abf2ecffd8ecc3745dbd9ab2e360826fa46d6f21dbebece7802b9b5980f4ab19e2dfd180ce0cfb84366f3ac5c87cd1b74a085e1a0dd620b6c097900e0f4

  • C:\Windows\SystemTemp\msedge_installer.log

    Filesize

    72KB

    MD5

    cb36f92bbc8b3e59e00bd099cf591378

    SHA1

    d7b8e8c20e51a0602a617e0d18a608b6b1083cbe

    SHA256

    45a57bac34a31ea60f015cd85001fe964d20c2ba94a8d245bf87ef57a60863b9

    SHA512

    ed5949171c36104e0732b529c6a3176f0fddbb67407e771bc573f61ecf39b3ea735c9893de9d7af46707ee209206279b1ef75d4ba166daff08e8cf288d49a300

  • C:\Windows\SystemTemp\msedge_installer.log

    Filesize

    104KB

    MD5

    76405ec25c80693d237bbeb5bca82ec6

    SHA1

    52dfe9f59a8797dde5e5817b0c850abc6c13dbb7

    SHA256

    74193a66d51c9ba1a8398ca729248901828196e80a3913b4ab00aeb04649a6a4

    SHA512

    98fcd7d9b4cd1f909a5942c3fd4e303c43a206bac3266f677377001e73d9f97fdb9e67c380171fe3047ae2a6b62146a517d9948d94b921d57862bae38a0ae6dc

  • C:\Windows\SystemTemp\msedge_installer.log

    Filesize

    104KB

    MD5

    c026040316e8d12ff7f3d768cf558a67

    SHA1

    319fed4a20f13ef8a6c4e3ba515d022523ddf7a0

    SHA256

    ced5e193d35f145833a6fce56c73a5bdf37501c996bb849c1b882245035ee531

    SHA512

    ba3866baa84fd266a36a0121d13e1fad4d395143d8dc382b9676afcf8e47bf437850e800633becd96c5a1aceb42cfeb5cce83c0d3807aae2e742304d511ccfb2

  • memory/5224-25-0x00007FF807760000-0x00007FF807771000-memory.dmp

    Filesize

    68KB

  • memory/5224-22-0x00007FF80A880000-0x00007FF80A891000-memory.dmp

    Filesize

    68KB

  • memory/5224-10-0x00007FF814110000-0x00007FF814127000-memory.dmp

    Filesize

    92KB

  • memory/5224-31-0x00007FF807470000-0x00007FF8074C7000-memory.dmp

    Filesize

    348KB

  • memory/5224-30-0x00007FF8074D0000-0x00007FF8074E1000-memory.dmp

    Filesize

    68KB

  • memory/5224-29-0x00007FF8074F0000-0x00007FF80756C000-memory.dmp

    Filesize

    496KB

  • memory/5224-28-0x00007FF807570000-0x00007FF8075D7000-memory.dmp

    Filesize

    412KB

  • memory/5224-16-0x00007FFFF8400000-0x00007FFFF94B0000-memory.dmp

    Filesize

    16.7MB

  • memory/5224-27-0x00007FF8075E0000-0x00007FF807610000-memory.dmp

    Filesize

    192KB

  • memory/5224-26-0x00007FF807740000-0x00007FF807758000-memory.dmp

    Filesize

    96KB

  • memory/5224-6-0x00007FF757370000-0x00007FF757468000-memory.dmp

    Filesize

    992KB

  • memory/5224-24-0x00007FF80A840000-0x00007FF80A85B000-memory.dmp

    Filesize

    108KB

  • memory/5224-23-0x00007FF80A860000-0x00007FF80A871000-memory.dmp

    Filesize

    68KB

  • memory/5224-8-0x00007FF809DA0000-0x00007FF80A056000-memory.dmp

    Filesize

    2.7MB

  • memory/5224-21-0x00007FF80AA00000-0x00007FF80AA11000-memory.dmp

    Filesize

    68KB

  • memory/5224-20-0x00007FF80AE80000-0x00007FF80AE98000-memory.dmp

    Filesize

    96KB

  • memory/5224-19-0x00007FF80AA20000-0x00007FF80AA41000-memory.dmp

    Filesize

    132KB

  • memory/5224-18-0x00007FF80AA50000-0x00007FF80AA91000-memory.dmp

    Filesize

    260KB

  • memory/5224-17-0x00007FF80A310000-0x00007FF80A51B000-memory.dmp

    Filesize

    2.0MB

  • memory/5224-9-0x00007FF8141A0000-0x00007FF8141B8000-memory.dmp

    Filesize

    96KB

  • memory/5224-11-0x00007FF80FE10000-0x00007FF80FE21000-memory.dmp

    Filesize

    68KB

  • memory/5224-12-0x00007FF80FD50000-0x00007FF80FD67000-memory.dmp

    Filesize

    92KB

  • memory/5224-13-0x00007FF80EC70000-0x00007FF80EC81000-memory.dmp

    Filesize

    68KB

  • memory/5224-14-0x00007FF80E990000-0x00007FF80E9AD000-memory.dmp

    Filesize

    116KB

  • memory/5224-15-0x00007FF80DE10000-0x00007FF80DE21000-memory.dmp

    Filesize

    68KB

  • memory/5224-7-0x00007FF80DBD0000-0x00007FF80DC04000-memory.dmp

    Filesize

    208KB