Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-12-2023 17:00

General

  • Target

    fc8fee6db44791d4c1f760aa15955e762a6a248a4f0de55d2e8236c9f6235c8e.exe

  • Size

    4.9MB

  • MD5

    071c933af96d7e3c46a38262d8fe2024

  • SHA1

    b50ece28b9aa85efc0ee040275c3a6029cc927ae

  • SHA256

    fc8fee6db44791d4c1f760aa15955e762a6a248a4f0de55d2e8236c9f6235c8e

  • SHA512

    3bd6e212a775845479709933add0d67df5f0644b256c6b4fd61dbacc4b1a8eb9cdca30a2777c6f9a55a036c482349b87bf4199c1553734ac2096d0a68753d82d

  • SSDEEP

    49152:D8NAsurg//nk7xi03zDWi26fs2cWDAbcl7jkv4+9Ry4kjCzqx:oCsur+/k7T0uDhEv4n4Mf

Malware Config

Signatures

  • Generic Chinese Botnet

    A botnet originating from China which is currently unnamed publicly.

  • Chinese Botnet payload 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fc8fee6db44791d4c1f760aa15955e762a6a248a4f0de55d2e8236c9f6235c8e.exe
    "C:\Users\Admin\AppData\Local\Temp\fc8fee6db44791d4c1f760aa15955e762a6a248a4f0de55d2e8236c9f6235c8e.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4132
    • C:\Windows\SysWOW64\sxteam.exe
      C:\Windows\System32\sxteam.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetWindowsHookEx
      PID:2524
    • C:\Users\Admin\AppData\Local\Temp\Æô¶¯.exe
      C:\Users\Admin\AppData\Local\Temp\Æô¶¯.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4136
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://pc.weixin.qq.com/
        3⤵
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:5040
        • 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=0xf8,0xfc,0x100,0xd4,0x104,0x7ffdd98e46f8,0x7ffdd98e4708,0x7ffdd98e4718
          4⤵
            PID:1212
          • 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=2176,5332152290133672329,9819399773813886448,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2288 /prefetch:3
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:3084
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2176,5332152290133672329,9819399773813886448,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2248 /prefetch:2
            4⤵
              PID:4380
            • 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=2176,5332152290133672329,9819399773813886448,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2880 /prefetch:8
              4⤵
                PID:776
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2176,5332152290133672329,9819399773813886448,131072 --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=3520 /prefetch:1
                4⤵
                  PID:3656
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2176,5332152290133672329,9819399773813886448,131072 --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=3328 /prefetch:1
                  4⤵
                    PID:2472
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2176,5332152290133672329,9819399773813886448,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4228 /prefetch:1
                    4⤵
                      PID:1804
                    • 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=2176,5332152290133672329,9819399773813886448,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5404 /prefetch:8
                      4⤵
                        PID:4368
                      • 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=2176,5332152290133672329,9819399773813886448,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5404 /prefetch:8
                        4⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:3364
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2176,5332152290133672329,9819399773813886448,131072 --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=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5468 /prefetch:1
                        4⤵
                          PID:2656
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2176,5332152290133672329,9819399773813886448,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3860 /prefetch:1
                          4⤵
                            PID:5096
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2176,5332152290133672329,9819399773813886448,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4176 /prefetch:1
                            4⤵
                              PID:2520
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2176,5332152290133672329,9819399773813886448,131072 --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=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5064 /prefetch:1
                              4⤵
                                PID:2828
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2176,5332152290133672329,9819399773813886448,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAQAAAAAAAAAAAAAAAAAABgAAAEAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2168 /prefetch:2
                                4⤵
                                • Suspicious behavior: EnumeratesProcesses
                                PID:2756
                        • C:\Windows\System32\CompPkgSrv.exe
                          C:\Windows\System32\CompPkgSrv.exe -Embedding
                          1⤵
                            PID:3224
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:3048

                            Network

                            MITRE ATT&CK Enterprise v15

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

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

                              Filesize

                              152B

                              MD5

                              f246cc2c0e84109806d24fcf52bd0672

                              SHA1

                              8725d2b2477efe4f66c60e0f2028bf79d8b88e4e

                              SHA256

                              0c1014ae07c2077dd55d7386cc9cf9e0551be1d67fe05a6006957427ae09fec5

                              SHA512

                              dcf31357eb39a05213550a879941e2c039ec0ba41e4867d5d630807420f070289552d56d9f16c6d11edcdb0f9448bf51e7d2e460e88aa9c55a5bfe5d8d331640

                            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index

                              Filesize

                              72B

                              MD5

                              f4ed059ff643f6d61900ffabe2759882

                              SHA1

                              b9d8fd2eb9272dae4ec09ff650a682d85d766299

                              SHA256

                              5ee5dd6cc42e8f3daeba55dfd77feb22595d629b75af7a44178238d037e9bd86

                              SHA512

                              8e0dc61a03db26f0de21137053cd727fe06a80f7084118cdb54a8dd6fe14092d41e6ef575875e1104fc8188cdc3ad899716e85e42f5b3c92303173bccc61c6d0

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

                              Filesize

                              189B

                              MD5

                              c063919e7c7382bda77a8916da03d559

                              SHA1

                              f67f83ce3b2ceb7d8390f851697779f7fdf23d18

                              SHA256

                              e241c784ecae2e0a23b44103cfe34898bbd552626c98467015dbe8deb9f862d4

                              SHA512

                              3bacfb5c2d4e01ddf61d3aa08fce8d7ed5437037139bf015f03a80b761bb739b3fafab3e23996cbdfe4b1984a5ab3f80ab66a49001918dafaecca8376ed13a4d

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

                              Filesize

                              111B

                              MD5

                              807419ca9a4734feaf8d8563a003b048

                              SHA1

                              a723c7d60a65886ffa068711f1e900ccc85922a6

                              SHA256

                              aa10bf07b0d265bed28f2a475f3564d8ddb5e4d4ffee0ab6f3a0cc564907b631

                              SHA512

                              f10d496ae75db5ba412bd9f17bf0c7da7632db92a3fabf7f24071e40f5759c6a875ad8f3a72bad149da58b3da3b816077df125d0d9f3544adba68c66353d206c

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

                              Filesize

                              5KB

                              MD5

                              f5a2a2bf21b88773d4314bab161309bc

                              SHA1

                              e23fb3ceca8fdc0359d267d7b11f6110151907a1

                              SHA256

                              a5adb294cf7131bfdb1d844d08073c71ab158bd436bc86150e902819aa60b7a0

                              SHA512

                              7e5e13dde4f05434fd3c6dbead7b77b436cb6443ef79b10a424e3cf01478e335aca266e18f3f24d2cdf2e1fa2825eea99917697a9f21d51dcaa2e0b8901d2250

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

                              Filesize

                              5KB

                              MD5

                              1561df050c1e8d2aa27d44ace9288479

                              SHA1

                              459f86bcc5cbb824a1d10cdf6bf613d2f8c21e0e

                              SHA256

                              0f7c75a10715afae4c725ad8e43a0e15263117046f92618e6331c305d1bbd5fb

                              SHA512

                              cab7f512c342590fd18beed5b849b86848a23595737a3947088b03f1731a9d6bc7470bdf1b7e9d53bb164a2e064e593db4f2e951d226a8446e5c23c352ff1de9

                            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\cd103dcc-c243-49f9-8843-192db1e55540.tmp

                              Filesize

                              24KB

                              MD5

                              5e62a6848f50c5ca5f19380c1ea38156

                              SHA1

                              1f5e7db8c292a93ae4a94a912dd93fe899f1ea6a

                              SHA256

                              23b683118f90c909ce86f9be9123ff6ac1355adb098ffbb09b9e5ec18fc2b488

                              SHA512

                              ce00590890ed908c18c3ec56df5f79c6c800e3bea2ad4629b9788b19bd1d9e94215fb991275e6ec5a58ac31b193e1c0b9cbaa52ff534319a5e76ec4fc8d3ba54

                            • 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

                              10KB

                              MD5

                              124c337a1d34c8aeac5bf37d43aee400

                              SHA1

                              3d77319da0dcb4050227d901a75ea26db0a63605

                              SHA256

                              c3a930a24ab244753526d1a4c855a2a116227b9e9a831f79eb41f7be11ff5b90

                              SHA512

                              e4bb2bec7a37faa78a51a8fb04e78dc5f6840f70624a902819fba4978e220fbcc2460f32a0aed3e9beb44e3862bd20a466daf0a0ef886a4a6f15e68397610f79

                            • C:\Users\Admin\AppData\Local\Temp\Æô¶¯.exe

                              Filesize

                              558KB

                              MD5

                              5da929e7c69ef7f1c5968895e726d417

                              SHA1

                              52769fbb111e61bc3f87e1c900686d718e71a97c

                              SHA256

                              aef253640e5aae96460b734d449af8d93f941aebda3399f5df91a8c0a8e91546

                              SHA512

                              25db548925d23ac9879625594c60d1d77c052a988130b7b4d5f579d5bac1377321f594082717d419b7a7f6a31d38cb959ff4b836aa31dc2347207e1d35fbdcf6

                            • C:\Windows\SysWOW64\sxteam.exe

                              Filesize

                              570KB

                              MD5

                              11abc30adaee43e0a5c5e284f5255603

                              SHA1

                              97ae259d823ef68c1802c9a1a4950f52021b34fe

                              SHA256

                              0ce2e157a2010039670ec26d8049e6f9908132b16dd36d0248272a1824b7baa6

                              SHA512

                              8c2ade3d38591c477b06ce3446860b3e6f2098ff1cabc32111c3c3038bb8b3c72314214463c13dc13034dee13ba53da52674767a3ccf1eeb9d7d7a72cff5791d

                            • C:\Windows\SysWOW64\sxteam.exe

                              Filesize

                              3.3MB

                              MD5

                              19d204376965daa8293b8dad0544e792

                              SHA1

                              9d57f94c7c59e462bc281b0d0321ea5049a4d4b5

                              SHA256

                              d20854dd8c10f5957f51e70c07b8129d05c5c56c9cc3796b815087ef123d9eb3

                              SHA512

                              80783d97681e17f506f4f38495b34e2450144c504232cf2c65c5e3f670f2518357c6e238634ae32290f9bc3eff07edc8445253e49a179f5c869d9572e163f2c7

                            • memory/2524-4-0x0000000010000000-0x000000001001F000-memory.dmp

                              Filesize

                              124KB