Analysis

  • max time kernel
    23s
  • max time network
    16s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/08/2024, 02:11

General

  • Target

    https://github.com/Zusyaku/Malware-Collection-Part-2/raw/main/MEMZ4.0.exe

Malware Config

Signatures

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 7 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of FindShellTrayWindow 35 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://github.com/Zusyaku/Malware-Collection-Part-2/raw/main/MEMZ4.0.exe
    1⤵
    • Enumerates system info in registry
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4048
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ff9568446f8,0x7ff956844708,0x7ff956844718
      2⤵
        PID:2152
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2060,2815895354608094543,1846413833030898325,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2092 /prefetch:2
        2⤵
          PID:4260
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2060,2815895354608094543,1846413833030898325,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2444 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4080
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2060,2815895354608094543,1846413833030898325,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2900 /prefetch:8
          2⤵
            PID:3792
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,2815895354608094543,1846413833030898325,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3292 /prefetch:1
            2⤵
              PID:3796
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,2815895354608094543,1846413833030898325,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3308 /prefetch:1
              2⤵
                PID:4176
              • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2060,2815895354608094543,1846413833030898325,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5404 /prefetch:8
                2⤵
                  PID:3312
                • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2060,2815895354608094543,1846413833030898325,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5404 /prefetch:8
                  2⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:1092
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_collections.mojom.CollectionsDataManager --field-trial-handle=2060,2815895354608094543,1846413833030898325,131072 --lang=en-US --service-sandbox-type=collections --mojo-platform-channel-handle=5056 /prefetch:8
                  2⤵
                    PID:4356
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,2815895354608094543,1846413833030898325,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2324 /prefetch:1
                    2⤵
                      PID:4508
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --field-trial-handle=2060,2815895354608094543,1846413833030898325,131072 --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5784 /prefetch:8
                      2⤵
                        PID:3736
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --field-trial-handle=2060,2815895354608094543,1846413833030898325,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6172 /prefetch:8
                        2⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:5048
                      • C:\Users\Admin\Downloads\MEMZ4.0.exe
                        "C:\Users\Admin\Downloads\MEMZ4.0.exe"
                        2⤵
                        • Checks computer location settings
                        • Executes dropped EXE
                        • System Location Discovery: System Language Discovery
                        PID:4520
                        • C:\Users\Admin\Downloads\MEMZ4.0.exe
                          "C:\Users\Admin\Downloads\MEMZ4.0.exe" /watchdog
                          3⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          • Suspicious behavior: EnumeratesProcesses
                          PID:208
                        • C:\Users\Admin\Downloads\MEMZ4.0.exe
                          "C:\Users\Admin\Downloads\MEMZ4.0.exe" /watchdog
                          3⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          • Suspicious behavior: EnumeratesProcesses
                          PID:2884
                        • C:\Users\Admin\Downloads\MEMZ4.0.exe
                          "C:\Users\Admin\Downloads\MEMZ4.0.exe" /watchdog
                          3⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          • Suspicious behavior: EnumeratesProcesses
                          PID:2612
                        • C:\Users\Admin\Downloads\MEMZ4.0.exe
                          "C:\Users\Admin\Downloads\MEMZ4.0.exe" /watchdog
                          3⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          • Suspicious behavior: EnumeratesProcesses
                          PID:5072
                        • C:\Users\Admin\Downloads\MEMZ4.0.exe
                          "C:\Users\Admin\Downloads\MEMZ4.0.exe" /watchdog
                          3⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          • Suspicious behavior: EnumeratesProcesses
                          PID:4908
                        • C:\Users\Admin\Downloads\MEMZ4.0.exe
                          "C:\Users\Admin\Downloads\MEMZ4.0.exe" /main
                          3⤵
                          • Checks computer location settings
                          • Executes dropped EXE
                          • Writes to the Master Boot Record (MBR)
                          • System Location Discovery: System Language Discovery
                          PID:5132
                          • C:\Windows\SysWOW64\notepad.exe
                            "C:\Windows\System32\notepad.exe" \note.txt
                            4⤵
                            • System Location Discovery: System Language Discovery
                            PID:5200
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,2815895354608094543,1846413833030898325,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5780 /prefetch:1
                        2⤵
                          PID:5236
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,2815895354608094543,1846413833030898325,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5992 /prefetch:1
                          2⤵
                            PID:5244
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,2815895354608094543,1846413833030898325,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=15 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6120 /prefetch:1
                            2⤵
                              PID:5400
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,2815895354608094543,1846413833030898325,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=16 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6484 /prefetch:1
                              2⤵
                                PID:5408
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:3780
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:1188

                                Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

                                      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                                        Filesize

                                        152B

                                        MD5

                                        9b008261dda31857d68792b46af6dd6d

                                        SHA1

                                        e82dc88e2d1da2df7cb19d79a0346b9bb90d52b3

                                        SHA256

                                        9ac598d4f8170f7e475d84103aead9e3c23d5f2d292741a7f56a17bde8b6f7da

                                        SHA512

                                        78853091403a06beeec4998e2e3a4342111895ffd485f7f7cd367741a4883f7a25864cba00a6c86f27dc0c9ce9d04f08011ecc40c8ae9383d33274739ac39f10

                                      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                                        Filesize

                                        152B

                                        MD5

                                        0446fcdd21b016db1f468971fb82a488

                                        SHA1

                                        726b91562bb75f80981f381e3c69d7d832c87c9d

                                        SHA256

                                        62c5dc18b25e758f3508582a7c58bb46b734a774d97fc0e8a20614235caa8222

                                        SHA512

                                        1df7c085042266959f1fe0aedc5f6d40ceba485b54159f51f0c38f17bb250b79ea941b735e1b6faf219f23fe8ab65ac4557f545519d52d5416b89ad0f9047a31

                                      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                                        Filesize

                                        5KB

                                        MD5

                                        1e06df36e6b76637928b9f008776b1e7

                                        SHA1

                                        79ffa0e9b3431f61eaa43b8a6ebb8d5ff4872212

                                        SHA256

                                        09395aa734c2f4e987eecc6dba47089f886f4ffa7cf9b1d11cc985f90c50417e

                                        SHA512

                                        a5caf2b295d7541d31043c270b31fa61d7b405632a75650d388ebdfba52a8331eda5aadc716132e676336167cc8f892310bb1a5c3021012be7b2715f6f73e348

                                      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                                        Filesize

                                        6KB

                                        MD5

                                        789c1a5e5f529fe100c5f62d2b22233a

                                        SHA1

                                        f12c8ad242a0c2c99f6d5e6460dad77f23fc9153

                                        SHA256

                                        7610a16b0c87263ce2db5741dd78172f752fcfa498caf22f281e897a85309893

                                        SHA512

                                        56666cdfaa6caf9a039f94bea0b4d863df24b4c174118e3aa2c7a337caaf4f2699d68ba689c9c892bac3234d3734a7c8e493cbe49eb9f65282a026092f28fff8

                                      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                                        Filesize

                                        16B

                                        MD5

                                        6752a1d65b201c13b62ea44016eb221f

                                        SHA1

                                        58ecf154d01a62233ed7fb494ace3c3d4ffce08b

                                        SHA256

                                        0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

                                        SHA512

                                        9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

                                      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

                                        Filesize

                                        11KB

                                        MD5

                                        7cf01bc0932354125eabd899894319ab

                                        SHA1

                                        fbb8696eebb4e442cc7fd799bfb4a4b1f6d2d85c

                                        SHA256

                                        8a751ea964d3c2557772ea56c5bd47d9f0b263be8c35e852d2a2d6bfa60c5424

                                        SHA512

                                        4860658f60551fecd0010d34026deca7ea77c5835454c9a3190674beacd7742274f30566d82fede87e7a1746de4d32e0d764987613e0a3ed664056a785d2bcd0

                                      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

                                        Filesize

                                        11KB

                                        MD5

                                        b6890b4f1827a0ad1db2d94ebf251791

                                        SHA1

                                        eca8f1e969f80b1d3d81dab46d2be10f31d01c64

                                        SHA256

                                        be3b8d7e4f3cd87f1807b23aa79cb0b91a780fe13bc7c9ccf81f033d69d3263f

                                        SHA512

                                        44bd88c54ca56f1d4e13b92ffa0c5f3140dae6332d2a96647c475c18342929af2fdbf6ecca90ac4824d9df590dd3d05d08ba47b8d34f14084748039a7c8705f8

                                      • C:\Users\Admin\Downloads\MEMZ4.0.exe

                                        Filesize

                                        14KB

                                        MD5

                                        aaf07d02c126deb604c5e177d1ccd03f

                                        SHA1

                                        71ed3fc7f5785845377e21f45da827a09806d63b

                                        SHA256

                                        cdd7c2736f2190cca9cb7e85498103d3f70f49a18c6e4f89cd39fd91c573f1aa

                                        SHA512

                                        96b5f145d36de5a2c65c158bdf6f528c8feda8e29b47bc8fd39c4d7dae10af575f1123c53143c3697268b96691e0312859a5af1266eaba9f34376c0b228bb8bc

                                      • C:\note.txt

                                        Filesize

                                        218B

                                        MD5

                                        afa6955439b8d516721231029fb9ca1b

                                        SHA1

                                        087a043cc123c0c0df2ffadcf8e71e3ac86bbae9

                                        SHA256

                                        8e9f20f6864c66576536c0b866c6ffdcf11397db67fe120e972e244c3c022270

                                        SHA512

                                        5da21a31fbc4e8250dffed30f66b896bdf007ac91948140334fe36a3f010e1bac3e70a07e9f3eb9da8633189091fd5cadcabbaacd3e01da0fe7ae28a11b3dddf