Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    10-02-2024 22:20

General

  • Target

    calc.exe

  • Size

    112KB

  • MD5

    829e4805b0e12b383ee09abdc9e2dc3c

  • SHA1

    5a272b7441328e09704b6d7eabdbd51b8858fde4

  • SHA256

    37121ecb7c1e112b735bd21b0dfe3e526352ecb98c434c5f40e6a2a582380cdd

  • SHA512

    356fe701e6788c9e4988ee5338c09170311c2013d6b72d7756b7ada5cda44114945f964668feb440d262fb1c0f9ca180549aafd532d169ceeadf435b9899c8f6

  • SSDEEP

    1536:JEl14rQcWAkN7GAlqbkfAGQGV8aMbrNyrf1w+noPvLV6eBsCXKc:JYmZWXyaiedMbrN6pnoXL1BsC

Score
4/10

Malware Config

Signatures

  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 52 IoCs
  • Suspicious use of FindShellTrayWindow 36 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\calc.exe
    "C:\Users\Admin\AppData\Local\Temp\calc.exe"
    1⤵
    • Suspicious use of FindShellTrayWindow
    PID:1680
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    1⤵
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2776
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef7b79758,0x7fef7b79768,0x7fef7b79778
      2⤵
        PID:2788
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1176 --field-trial-handle=1196,i,4074730752961108598,13290508144531775327,131072 /prefetch:2
        2⤵
          PID:2528
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=1516 --field-trial-handle=1196,i,4074730752961108598,13290508144531775327,131072 /prefetch:8
          2⤵
            PID:2564
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1612 --field-trial-handle=1196,i,4074730752961108598,13290508144531775327,131072 /prefetch:8
            2⤵
              PID:2972
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2284 --field-trial-handle=1196,i,4074730752961108598,13290508144531775327,131072 /prefetch:1
              2⤵
                PID:1512
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2276 --field-trial-handle=1196,i,4074730752961108598,13290508144531775327,131072 /prefetch:1
                2⤵
                  PID:1556
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1352 --field-trial-handle=1196,i,4074730752961108598,13290508144531775327,131072 /prefetch:2
                  2⤵
                    PID:2628
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=1472 --field-trial-handle=1196,i,4074730752961108598,13290508144531775327,131072 /prefetch:1
                    2⤵
                      PID:2352
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3920 --field-trial-handle=1196,i,4074730752961108598,13290508144531775327,131072 /prefetch:8
                      2⤵
                        PID:2092
                    • C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
                      "C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
                      1⤵
                        PID:1740
                      • C:\Program Files (x86)\Microsoft Office\Office14\POWERPNT.EXE
                        "C:\Program Files (x86)\Microsoft Office\Office14\POWERPNT.EXE" /s "C:\Users\Admin\Documents\PingReceive.ppsx"
                        1⤵
                        • Modifies Internet Explorer settings
                        • Suspicious behavior: AddClipboardFormatListener
                        • Suspicious use of SetWindowsHookEx
                        PID:1912
                        • C:\Windows\splwow64.exe
                          C:\Windows\splwow64.exe 12288
                          2⤵
                            PID:1976
                        • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
                          "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\Documents\Are.docx"
                          1⤵
                          • Drops file in Windows directory
                          • Modifies Internet Explorer settings
                          • Modifies registry class
                          • Suspicious behavior: AddClipboardFormatListener
                          • Suspicious use of SetWindowsHookEx
                          PID:2248
                        • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
                          "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\Documents\Are.docx"
                          1⤵
                          • Suspicious behavior: AddClipboardFormatListener
                          • Suspicious use of SetWindowsHookEx
                          PID:704
                        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
                          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\Documents\SwitchTrace.pdf"
                          1⤵
                          • Suspicious use of SetWindowsHookEx
                          PID:1452
                        • C:\Windows\system32\NOTEPAD.EXE
                          "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Documents\InitializeUnlock.txt
                          1⤵
                          • Opens file in notepad (likely ransom note)
                          PID:1516

                        Network

                        MITRE ATT&CK Matrix ATT&CK v13

                        Defense Evasion

                        Modify Registry

                        1
                        T1112

                        Discovery

                        Query Registry

                        1
                        T1012

                        System Information Discovery

                        1
                        T1082

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1
                          Filesize

                          264KB

                          MD5

                          f50f89a0a91564d0b8a211f8921aa7de

                          SHA1

                          112403a17dd69d5b9018b8cede023cb3b54eab7d

                          SHA256

                          b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

                          SHA512

                          bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                          Filesize

                          4KB

                          MD5

                          92ee999143f714cf95c07259be586dcd

                          SHA1

                          aa56be24d26ad00c4becf668a4d12217733629ef

                          SHA256

                          c6a8705ad051169f782fe5bc4847c49a0c33ba2a75530c5f2eaf32ce5b934345

                          SHA512

                          138b94bb4e53d50942de4f5da7d90e653c3dbc8509225f1eb0e87603253c929958be26eb9746cc548341f0d3be55f862734eedd518cebad53632bc44d214d0f7

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\shared_proto_db\metadata\000007.dbtmp
                          Filesize

                          16B

                          MD5

                          18e723571b00fb1694a3bad6c78e4054

                          SHA1

                          afcc0ef32d46fe59e0483f9a3c891d3034d12f32

                          SHA256

                          8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

                          SHA512

                          43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                          Filesize

                          239KB

                          MD5

                          61fddd2dd3a41b21d911ce19ceb5314a

                          SHA1

                          a69595860f8d79992251a5d712f6677710379bbf

                          SHA256

                          a04429407e5b29480a2e084a022ca1ad42bcd9deb0641c584b1e0ac8f92b78ed

                          SHA512

                          fc6b102de990d167f226eab27705dda2423f7adf2b8d95b2da56129fab4d0d7eee5a62f41078e5eb9b2dd3ff1addb2d1222ae17772491608c752ceb108b797c1

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\bc0f3261-1f04-4ae5-8b13-6c9a0e756beb.tmp
                          Filesize

                          238KB

                          MD5

                          147e551c6e6ebee7b517204c11719ec3

                          SHA1

                          3a952ad2e030f088b35db3b7c57d910a16e4a8d4

                          SHA256

                          d127ccfe7b40e61f151fc30f63c4bd1f9dbd37662f8397cd23b05aabf6ea27a2

                          SHA512

                          ddb7223743bbf8a245ca44b931843c31b7eb7784da7f35dd5fe1e5ae26d0c1e2da746afed2ac971957698f7a8489b29dc79654e488570a6c3dfb2974072b67d8

                        • C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
                          Filesize

                          3KB

                          MD5

                          37b34d7faa805318ae80eed8c0c45ac3

                          SHA1

                          c11d903e3edf8da4831fed26473e386fdd701477

                          SHA256

                          2e8430c456d84189e7dfca56e8c7f94897ce3ef68914d1e2d31d644420bdbfab

                          SHA512

                          98aede308fec02c591446b14c89e002d71eba7b588d315fa9efa3a7f73695494982ee69628e0ce8d6e58a21cbd90ef260f64185b281232c7a1fc0912d7e56e99

                        • C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\Are.docx.LNK
                          Filesize

                          983B

                          MD5

                          3eadeadf9a4e6c24e8f0db7bffa57c0a

                          SHA1

                          3fb403d2c4328ba8fb235a8d8847d40d709f5e0c

                          SHA256

                          7036d794953a211937ce6dbe713e5fcc7a79d30f48c0c5ffef90d57e06111edf

                          SHA512

                          69d1cee4bd7786dcfbf77b73d64c9d7c1bf73ce6b46ad85e750ec80171ca886222eac333bcd92abefe53e4e23dbee07c5c79dfabbbbb93a69cfcb659d75ae973

                        • C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat
                          Filesize

                          68B

                          MD5

                          6671d72b707430c5031c4f63e5f3ab38

                          SHA1

                          fff201123395afa13badb0a7ad1ecb1097897440

                          SHA256

                          1078c5b8420c6b9b5495aaae489d567849937600652da83267f83638f51f7864

                          SHA512

                          184266204a4f8caf074272484285feb27518a2d2f7f343982851514f0af5cc8ae35e59fc97d8c062d4c9f2129723bf6f9c4716cfe96c3dc31445c220a2158353

                        • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm
                          Filesize

                          20KB

                          MD5

                          48cd2c4434d5453fb59f38e9c8f7de0b

                          SHA1

                          bdc6a4bd5e0a0c37865af165a5efb9920077d40b

                          SHA256

                          d7b9ce48386e8a4dfc52f4e8a9c3f9a985a22715cd8bc9f82edc850696ffab7a

                          SHA512

                          f716635a2d98a4f1347924c84ad06f63452f742c3c310c13e00ef348863f427da65c3634077a306b9ae9b46b0620af73fad9f10baf61f682becfe65ae23d073b

                        • C:\Users\Admin\AppData\Roaming\Microsoft\UProof\CUSTOM.DIC
                          Filesize

                          2B

                          MD5

                          f3b25701fe362ec84616a93a45ce9998

                          SHA1

                          d62636d8caec13f04e28442a0a6fa1afeb024bbb

                          SHA256

                          b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

                          SHA512

                          98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

                        • \??\pipe\crashpad_2776_KBZDOGMOTXTJXPPF
                          MD5

                          d41d8cd98f00b204e9800998ecf8427e

                          SHA1

                          da39a3ee5e6b4b0d3255bfef95601890afd80709

                          SHA256

                          e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                          SHA512

                          cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                        • memory/704-202-0x000000002F701000-0x000000002F702000-memory.dmp
                          Filesize

                          4KB

                        • memory/704-220-0x0000000073FFD000-0x0000000074008000-memory.dmp
                          Filesize

                          44KB

                        • memory/704-204-0x0000000073FFD000-0x0000000074008000-memory.dmp
                          Filesize

                          44KB

                        • memory/704-203-0x000000005FFF0000-0x0000000060000000-memory.dmp
                          Filesize

                          64KB

                        • memory/1912-156-0x000000002D301000-0x000000002D302000-memory.dmp
                          Filesize

                          4KB

                        • memory/1912-162-0x0000000072C5D000-0x0000000072C68000-memory.dmp
                          Filesize

                          44KB

                        • memory/1912-161-0x000000005FFF0000-0x0000000060000000-memory.dmp
                          Filesize

                          64KB

                        • memory/1912-157-0x000000005FFF0000-0x0000000060000000-memory.dmp
                          Filesize

                          64KB

                        • memory/1912-158-0x0000000072C5D000-0x0000000072C68000-memory.dmp
                          Filesize

                          44KB

                        • memory/2248-201-0x00000000719DD000-0x00000000719E8000-memory.dmp
                          Filesize

                          44KB

                        • memory/2248-165-0x00000000719DD000-0x00000000719E8000-memory.dmp
                          Filesize

                          44KB

                        • memory/2248-164-0x000000005FFF0000-0x0000000060000000-memory.dmp
                          Filesize

                          64KB

                        • memory/2248-163-0x000000002FA81000-0x000000002FA82000-memory.dmp
                          Filesize

                          4KB