Analysis

  • max time kernel
    72s
  • max time network
    73s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-07-2024 12:06

General

  • Target

    https://github.com/errias/XWorm-Rat-Remote-Administration-Tool-/raw/main/dnlib.exe

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

def

C2

37.18.62.18:8060

Mutex

era2312swe12-1213rsgdkms23

Attributes
  • delay

    1

  • install

    true

  • install_file

    CCXProcess.exe

  • install_folder

    %Temp%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Async RAT payload 1 IoCs
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 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
  • Kills process with taskkill 1 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 35 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of SetWindowsHookEx 2 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/errias/XWorm-Rat-Remote-Administration-Tool-/raw/main/dnlib.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:5084
    • 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,0x100,0x104,0xd8,0x108,0x7ff9eb0b46f8,0x7ff9eb0b4708,0x7ff9eb0b4718
      2⤵
        PID:5068
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2188,6191558330240375849,1483924482503826112,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2216 /prefetch:2
        2⤵
          PID:2224
        • 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=2188,6191558330240375849,1483924482503826112,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2352 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1028
        • 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=2188,6191558330240375849,1483924482503826112,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2824 /prefetch:8
          2⤵
            PID:3916
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,6191558330240375849,1483924482503826112,131072 --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=3396 /prefetch:1
            2⤵
              PID:4936
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,6191558330240375849,1483924482503826112,131072 --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=3416 /prefetch:1
              2⤵
                PID:3556
              • 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=2188,6191558330240375849,1483924482503826112,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5416 /prefetch:8
                2⤵
                  PID:4708
                • 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=2188,6191558330240375849,1483924482503826112,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5416 /prefetch:8
                  2⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:1508
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,6191558330240375849,1483924482503826112,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5476 /prefetch:1
                  2⤵
                    PID:3440
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,6191558330240375849,1483924482503826112,131072 --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=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5496 /prefetch:1
                    2⤵
                      PID:1444
                    • 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=2188,6191558330240375849,1483924482503826112,131072 --lang=en-US --service-sandbox-type=collections --mojo-platform-channel-handle=5224 /prefetch:8
                      2⤵
                        PID:4124
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,6191558330240375849,1483924482503826112,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5680 /prefetch:1
                        2⤵
                          PID:4112
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,6191558330240375849,1483924482503826112,131072 --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=5532 /prefetch:1
                          2⤵
                            PID:4288
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,6191558330240375849,1483924482503826112,131072 --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:3192
                            • 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=2188,6191558330240375849,1483924482503826112,131072 --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=6420 /prefetch:8
                              2⤵
                                PID:1460
                              • 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=2188,6191558330240375849,1483924482503826112,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6508 /prefetch:8
                                2⤵
                                • Suspicious behavior: EnumeratesProcesses
                                PID:4364
                              • C:\Users\Admin\Downloads\dnlib.exe
                                "C:\Users\Admin\Downloads\dnlib.exe"
                                2⤵
                                • Checks computer location settings
                                • Executes dropped EXE
                                • Suspicious behavior: EnumeratesProcesses
                                • Suspicious use of AdjustPrivilegeToken
                                • Suspicious use of SetWindowsHookEx
                                PID:216
                                • \??\c:\windows\system32\cmstp.exe
                                  "c:\windows\system32\cmstp.exe" /au C:\windows\temp\v3jkcvg1.inf
                                  3⤵
                                    PID:2872
                                  • C:\Users\Admin\AppData\Local\Temp\sysfile32.exe
                                    "C:\Users\Admin\AppData\Local\Temp\sysfile32.exe"
                                    3⤵
                                    • Executes dropped EXE
                                    PID:1836
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:4480
                                • C:\Windows\System32\CompPkgSrv.exe
                                  C:\Windows\System32\CompPkgSrv.exe -Embedding
                                  1⤵
                                    PID:3160
                                  • C:\Users\Admin\AppData\Local\Temp\x86.exe
                                    C:\Users\Admin\AppData\Local\Temp\x86.exe
                                    1⤵
                                    • Executes dropped EXE
                                    • Suspicious use of AdjustPrivilegeToken
                                    PID:4196
                                  • C:\Windows\system32\taskkill.exe
                                    taskkill /IM cmstp.exe /F
                                    1⤵
                                    • Kills process with taskkill
                                    • Suspicious use of AdjustPrivilegeToken
                                    PID:1848

                                  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

                                    bafce9e4c53a0cb85310891b6b21791b

                                    SHA1

                                    5d70027cc137a7cbb38f5801b15fd97b05e89ee2

                                    SHA256

                                    71fb546b5d2210a56e90b448ee10120cd92c518c8f79fb960f01b918f89f2b00

                                    SHA512

                                    c0e4d3eccc0135ac92051539a18f64b8b8628cfe74e5b019d4f8e1dcbb51a9b49c486a1523885fe6be53da7118c013852e753c26a5490538c1e721fd0188836c

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

                                    Filesize

                                    152B

                                    MD5

                                    a499254d6b5d91f97eb7a86e5f8ca573

                                    SHA1

                                    03dbfebfec8c94a9c06f9b0cd81ebe0a2b8be3d1

                                    SHA256

                                    fb87b758c2b98989df851380293ff6786cb9a5cf2b3a384cec70d9f3eb064499

                                    SHA512

                                    d7adcc76d0470bcd68d7644de3c8d2b6d61df8485979a4752ceea3df4d85bd1c290f72b3d8d5c8d639d5a10afa48d80e457f76b44dd8107ac97eb80fd98c7b0c

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

                                    Filesize

                                    261B

                                    MD5

                                    2c2e6472d05e3832905f0ad4a04d21c3

                                    SHA1

                                    007edbf35759af62a5b847ab09055e7d9b86ffcc

                                    SHA256

                                    283d954fa21caa1f3b4aba941b154fab3e626ff27e7b8029f5357872c48cbe03

                                    SHA512

                                    8c4ce1ea02da6ffb7e7041c50528da447d087d9ee3c9f4a8c525d2d856cf48e46f5dd9a1fedd23dd047634e719c8886457f7e7240aa3cc36f1a6216e4c00ee37

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

                                    Filesize

                                    6KB

                                    MD5

                                    96bb8d8e37ccc7cc35227d17303b9c02

                                    SHA1

                                    c43d735c56a289f0967bb34b99d5bbe42fb70c7c

                                    SHA256

                                    a1b5d3dabe129f0e6d0f14f1761c03560e42ed0ba573d772d153b97fd3140c1d

                                    SHA512

                                    b875282b6dfbceb82b09d2d4d550e325134952c4be0943224f53a97f748cb8f2897c2f1bd367710d40e757dd5db110af14eaa6664b9f291dae480fc30eed3381

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

                                    Filesize

                                    6KB

                                    MD5

                                    a716cf09408168a186b71b7b90a3c89f

                                    SHA1

                                    3e92ec034464d05168d5d38951d81e53d9bd2b0d

                                    SHA256

                                    da5b2ee6ba742cb6db2c69728d3d6d908c5faf584db938adbef6c86ea02829e6

                                    SHA512

                                    763fccdc7f353e8e8b49d8fe79b4805230b3326fd810ac1c4969ffa1cfd9c4fc4154bd619537ff63f310c948ebdf76ab0db9568060669def78667e8f1ff2773b

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

                                    Filesize

                                    6KB

                                    MD5

                                    43ed857d9d592a5e9f56af50aa4c4d3f

                                    SHA1

                                    e841ef095fa1316bd47891f8ca35941bd9c88b22

                                    SHA256

                                    651d90291210ae60630ba5f6f69bd43207046830469d1a2df5385c05a05b9ead

                                    SHA512

                                    c5445b68c789186c1de935aaf25fd61cf35872a802ca04af7289130d9dbd2acb88d1b3df14daa73ae3f8449818ae0a055886525d925397282045b158fdc77d9d

                                  • 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

                                    2642511477c98058be92474c6d43a1c2

                                    SHA1

                                    c470621666e11ccc9c81537cd29e6ca850b39f7a

                                    SHA256

                                    22ff77c5b9fa91dd01f95eca088799d8ec78b06b19543aec9809a5d759e948c1

                                    SHA512

                                    76356d56aa1914cc9e78821d1cf4339e5fa30260dafc81fe36b24636cd2f423ecce8a538ec5f5e828e1289ecddd8f89ef6afb65082dc5d46d27b1b4241a5fdb6

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

                                    Filesize

                                    11KB

                                    MD5

                                    d08104fbbed3d48d5ccffe86619c3f76

                                    SHA1

                                    f514bf69d3612b7630e565fb96bf9bf405466693

                                    SHA256

                                    a27f0dbfba113f58b9500f1f429f8e0bccfd4852f3683bbedb5b3709a5efcdae

                                    SHA512

                                    d3c9c5f5beb67cf993abaabc1050062ef7ee1e737dbfb466e11c443002296f80bd3a0dab43b6dfa91df881328a86745227102c03f87d1e5ad0c44706a30a6314

                                  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3jduh1lm.0r3.ps1

                                    Filesize

                                    60B

                                    MD5

                                    d17fe0a3f47be24a6453e9ef58c94641

                                    SHA1

                                    6ab83620379fc69f80c0242105ddffd7d98d5d9d

                                    SHA256

                                    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

                                    SHA512

                                    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

                                  • C:\Users\Admin\AppData\Local\Temp\sysfile32.exe

                                    Filesize

                                    52KB

                                    MD5

                                    0c2d61d64f4325ca752202e5bf792e9e

                                    SHA1

                                    e7655910a124dd10beb774a693f7caccf849b438

                                    SHA256

                                    d0dd06d26f09eed4755de33c63e29aeb8161cd9b0ca123af3474c5594df57ec1

                                    SHA512

                                    1205a69419c38605e9a84200b1cc7731a3e169fae265dfc324a9edaf98bbc06f110bdf63d08f6b97d312cd0ce1fffe9ef8649f116ac27eb8b659ad88519d9c46

                                  • C:\Users\Admin\AppData\Local\Temp\x86.exe

                                    Filesize

                                    12KB

                                    MD5

                                    f922206889c896cf2d86f21e9f9db7db

                                    SHA1

                                    046b00f2edb34982db266d903627ced283f4a5ea

                                    SHA256

                                    1ac4832667db7044b1077e447d587a14dcd1270e71b8d34157a77d515b61c4b3

                                    SHA512

                                    abe82360ab14ed1e0c0c25da46a7558638671de1701e383b7a9bc122edecbc1eb13c760835a7e626a7d3ba326d4705acb53987e61d45332027913512befc4965

                                  • C:\Users\Admin\Downloads\dnlib.exe

                                    Filesize

                                    12KB

                                    MD5

                                    013965d8a511aec735b069e3ec027d4f

                                    SHA1

                                    f2673470953b247525a6a54e53417fd844b0e816

                                    SHA256

                                    27f8adbfd40471340ecf13950e143c0fdc7acade26458edf99781b4138cd4a02

                                    SHA512

                                    fa0e8a2e78c34e6e6b3ab4c225f6c08356e024d900fdc6d3bcc69beb57a17c6c205a34c155d9766917b2fe769415fc4232fcdc9c0f7807c9c0c61ecd7bb13016

                                  • C:\windows\temp\v3jkcvg1.inf

                                    Filesize

                                    542B

                                    MD5

                                    5c23ac475d677288f01378eb90a7d32c

                                    SHA1

                                    8801e0122b4c2575bc8dcfbf04421a2c446dddf7

                                    SHA256

                                    7f146ed6fa2a2fbde0cda5e2afc47d4987dc62b8d3edb75d4d7341653bcefabe

                                    SHA512

                                    21c7ec4352e9c2c4a5472b4b5fee1372440589f27cd3f7b9bd756ce9d311b90c28fe82403cf8435119fc0ed13da03b6773f774b68128f1b280f7ecd5cafd4961

                                  • memory/216-89-0x0000000002350000-0x0000000002362000-memory.dmp

                                    Filesize

                                    72KB

                                  • memory/216-85-0x0000000002360000-0x0000000002382000-memory.dmp

                                    Filesize

                                    136KB

                                  • memory/216-75-0x0000000000100000-0x0000000000108000-memory.dmp

                                    Filesize

                                    32KB

                                  • memory/1836-116-0x0000000000530000-0x0000000000542000-memory.dmp

                                    Filesize

                                    72KB

                                  • memory/4196-94-0x00000000001E0000-0x00000000001E8000-memory.dmp

                                    Filesize

                                    32KB