Analysis

  • max time kernel
    185s
  • max time network
    189s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-09-2022 21:23

General

  • Target

    41d83459aad53dd5da4346d33bd8df6648f7da7a12a0ebc5f0e8aeb1bb4ebed9.exe

  • Size

    719KB

  • MD5

    fc7cb881cce701a7aa0e66db5343a08b

  • SHA1

    8aabd3472aadda2df50f491d8868924fbd02400b

  • SHA256

    41d83459aad53dd5da4346d33bd8df6648f7da7a12a0ebc5f0e8aeb1bb4ebed9

  • SHA512

    1d2ae10224e40d3fe1c5d5848afa91898b23b1dd8df104c689d911a10a899674d6cc7620c76c35113cf7de0db5fed31fe64934b74607289d6e6ec3f2f389e749

  • SSDEEP

    12288:5ZwHOyR7qnrIP1coEheYLpv2vlUUSNIRLNvWuWPm6NT4ITMRRLjDlCjI:LT6KJgN+GNwmVRRDkM

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

rattenjunge.zapto.org:1604

Mutex

DC_MUTEX-F54S21D

Attributes
  • gencode

    4cjU6YoJ5VXp

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Program crash 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\41d83459aad53dd5da4346d33bd8df6648f7da7a12a0ebc5f0e8aeb1bb4ebed9.exe
    "C:\Users\Admin\AppData\Local\Temp\41d83459aad53dd5da4346d33bd8df6648f7da7a12a0ebc5f0e8aeb1bb4ebed9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4984
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
      2⤵
      • Adds Run key to start application
      • Enumerates system info in registry
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4280
      • 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=0x108,0x10c,0x110,0xe4,0x114,0x7ff815d446f8,0x7ff815d44708,0x7ff815d44718
        3⤵
          PID:4840
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2108,17332375404918617650,9227649227668768701,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2184 /prefetch:2
          3⤵
            PID:636
          • 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=2108,17332375404918617650,9227649227668768701,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2272 /prefetch:3
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:1560
          • 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=2108,17332375404918617650,9227649227668768701,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2620 /prefetch:8
            3⤵
              PID:2020
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,17332375404918617650,9227649227668768701,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3292 /prefetch:1
              3⤵
                PID:4380
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,17332375404918617650,9227649227668768701,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4044 /prefetch:1
                3⤵
                  PID:2248
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,17332375404918617650,9227649227668768701,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4056 /prefetch:1
                  3⤵
                    PID:596
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2108,17332375404918617650,9227649227668768701,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5708 /prefetch:8
                    3⤵
                      PID:4212
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2108,17332375404918617650,9227649227668768701,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=6068 /prefetch:8
                      3⤵
                        PID:864
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2108,17332375404918617650,9227649227668768701,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6188 /prefetch:1
                        3⤵
                          PID:1000
                        • 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=2108,17332375404918617650,9227649227668768701,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6716 /prefetch:8
                          3⤵
                            PID:4784
                          • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --configure-user-settings --verbose-logging --system-level --msedge --force-configure-user-settings
                            3⤵
                            • Drops file in Program Files directory
                            PID:3784
                            • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\TEMP\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x270,0x274,0x278,0x24c,0x27c,0x7ff7d80b5460,0x7ff7d80b5470,0x7ff7d80b5480
                              4⤵
                                PID:548
                            • 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=2108,17332375404918617650,9227649227668768701,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6716 /prefetch:8
                              3⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:1348
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=2108,17332375404918617650,9227649227668768701,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1440 /prefetch:8
                              3⤵
                                PID:3936
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2108,17332375404918617650,9227649227668768701,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=5140 --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=5708 /prefetch:2
                                3⤵
                                • Suspicious behavior: EnumeratesProcesses
                                PID:4360
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 4984 -s 572
                              2⤵
                              • Program crash
                              PID:3912
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:4080
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4984 -ip 4984
                              1⤵
                                PID:5052

                              Network

                              MITRE ATT&CK Matrix ATT&CK v6

                              Persistence

                              Registry Run Keys / Startup Folder

                              1
                              T1060

                              Defense Evasion

                              Modify Registry

                              1
                              T1112

                              Discovery

                              Query Registry

                              1
                              T1012

                              System Information Discovery

                              1
                              T1082

                              Replay Monitor

                              Loading Replay Monitor...

                              Downloads

                              • \??\pipe\LOCAL\crashpad_4280_MWNMDBRWXMZRPAFA
                                MD5

                                d41d8cd98f00b204e9800998ecf8427e

                                SHA1

                                da39a3ee5e6b4b0d3255bfef95601890afd80709

                                SHA256

                                e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                SHA512

                                cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                              • memory/548-154-0x0000000000000000-mapping.dmp
                              • memory/596-146-0x0000000000000000-mapping.dmp
                              • memory/636-136-0x0000000000000000-mapping.dmp
                              • memory/864-150-0x0000000000000000-mapping.dmp
                              • memory/1000-152-0x0000000000000000-mapping.dmp
                              • memory/1348-155-0x0000000000000000-mapping.dmp
                              • memory/1560-137-0x0000000000000000-mapping.dmp
                              • memory/2020-139-0x0000000000000000-mapping.dmp
                              • memory/2248-144-0x0000000000000000-mapping.dmp
                              • memory/3784-153-0x0000000000000000-mapping.dmp
                              • memory/3936-157-0x0000000000000000-mapping.dmp
                              • memory/4212-148-0x0000000000000000-mapping.dmp
                              • memory/4280-132-0x0000000000000000-mapping.dmp
                              • memory/4280-133-0x0000000000400000-0x00000000004B5000-memory.dmp
                                Filesize

                                724KB

                              • memory/4360-158-0x0000000000000000-mapping.dmp
                              • memory/4380-142-0x0000000000000000-mapping.dmp
                              • memory/4840-134-0x0000000000000000-mapping.dmp