Analysis

  • max time kernel
    139s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/11/2023, 02:13

General

  • Target
    EXloader.exe
  • Size 266KB
  • Sample231122-cntbesae6y
  • SHA256 5b7ab7f4f1d70392c5fd6e4e44a2dbd478334f8621311a4da56c82a2f6b8f165
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • redline

C2
  • 91.103.252.48:33597

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 2 IoCs
  • Detected potential entity reuse from brand microsoft.
  • 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 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 9 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\EXloader.exe
    "C:\Users\Admin\AppData\Local\Temp\EXloader.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4536
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://go.microsoft.com/fwlink/?prd=11324&pver=4.5&sbp=AppLaunch2&plcid=0x409&o1=SHIM_NOVERSION_FOUND&version=(null)&processName=EXloader.exe&platform=0009&osver=6&isServer=0&shimver=4.0.30319.0
      2⤵
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3712
      • 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,0x100,0x104,0xd8,0x108,0x7ffe81c746f8,0x7ffe81c74708,0x7ffe81c74718
        3⤵
          PID:1108
        • 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=1988,15504201691892803450,12766206144070816130,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2344 /prefetch:3
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4764
        • 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=1988,15504201691892803450,12766206144070816130,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2860 /prefetch:8
          3⤵
            PID:1716
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1988,15504201691892803450,12766206144070816130,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2012 /prefetch:2
            3⤵
              PID:3300
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1988,15504201691892803450,12766206144070816130,131072 --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=3332 /prefetch:1
              3⤵
                PID:4500
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1988,15504201691892803450,12766206144070816130,131072 --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=3348 /prefetch:1
                3⤵
                  PID:1700
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1988,15504201691892803450,12766206144070816130,131072 --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=4868 /prefetch:1
                  3⤵
                    PID:1748
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1988,15504201691892803450,12766206144070816130,131072 --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=5052 /prefetch:1
                    3⤵
                      PID:3368
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1988,15504201691892803450,12766206144070816130,131072 --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=5344 /prefetch:1
                      3⤵
                        PID:3276
                      • 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=1988,15504201691892803450,12766206144070816130,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5640 /prefetch:8
                        3⤵
                          PID:1432
                        • 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=1988,15504201691892803450,12766206144070816130,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5640 /prefetch:8
                          3⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:2872
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1988,15504201691892803450,12766206144070816130,131072 --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=5784 /prefetch:1
                          3⤵
                            PID:4156
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1988,15504201691892803450,12766206144070816130,131072 --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=5820 /prefetch:1
                            3⤵
                              PID:1484
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1988,15504201691892803450,12766206144070816130,131072 --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=5372 /prefetch:1
                              3⤵
                                PID:5316
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1988,15504201691892803450,12766206144070816130,131072 --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=5268 /prefetch:1
                                3⤵
                                  PID:5324
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://go.microsoft.com/fwlink/?prd=11324&pver=4.5&sbp=AppLaunch2&plcid=0x409&o1=SHIM_NOVERSION_FOUND&version=(null)&processName=EXloader.exe&platform=0009&osver=6&isServer=0&shimver=4.0.30319.0
                                2⤵
                                  PID:4592
                                  • 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,0x100,0x104,0xd8,0x108,0x7ffe81c746f8,0x7ffe81c74708,0x7ffe81c74718
                                    3⤵
                                      PID:4732
                                • C:\Windows\System32\CompPkgSrv.exe
                                  C:\Windows\System32\CompPkgSrv.exe -Embedding
                                  1⤵
                                    PID:1112
                                  • C:\Windows\System32\CompPkgSrv.exe
                                    C:\Windows\System32\CompPkgSrv.exe -Embedding
                                    1⤵
                                      PID:3852

                                    Network

                                          MITRE ATT&CK Enterprise v15

                                          Replay Monitor

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                                          Downloads

                                          settings.dat

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                          • Size 152B
                                          • SHA256 bfcadaffd49f5351acf68b8249b32270424bc2459125818492cd3224662a9a87
                                          • MD5 SHA1 SHA512

                                          settings.dat

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                          • Size 152B
                                          • SHA256 bfcadaffd49f5351acf68b8249b32270424bc2459125818492cd3224662a9a87
                                          • MD5 SHA1 SHA512

                                          settings.dat

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                          • Size 152B
                                          • SHA256 bfcadaffd49f5351acf68b8249b32270424bc2459125818492cd3224662a9a87
                                          • MD5 SHA1 SHA512

                                          13f1dd76-d3f8-4117-8601-290d4ca933e3.tmp

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\13f1dd76-d3f8-4117-8601-290d4ca933e3.tmp
                                          • Size 5KB
                                          • SHA256 c6c692a142e6ff0e273fb8a9d57aeaea7d7cec65bf7b69563a1d1e513895dd99
                                          • MD5 SHA1 SHA512 SSDEEP

                                          the-real-index

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index
                                          • Size 264B
                                          • SHA256 495f8d4df7d1b96ee6c172480f991e16ba196eb57c6e4543d113a0a2a93192f0
                                          • MD5 SHA1 SHA512

                                          Network Persistent State

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State
                                          • Size 111B
                                          • SHA256 5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026
                                          • MD5 SHA1 SHA512

                                          Network Persistent State

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State
                                          • Size 437B
                                          • SHA256 3aacb982b8861c38a392829ee3156d05dfdd46b0ecb46154f0ea9374557bc0fd
                                          • MD5 SHA1 SHA512

                                          Preferences

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                          • Size 6KB
                                          • SHA256 e2a3d92654176b6d08109fda0c787d0091de8134c4d9d7f72aefb2850bda088f
                                          • MD5 SHA1 SHA512 SSDEEP

                                          Preferences

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                          • Size 5KB
                                          • SHA256 e09c73fd7e5c2a85173e5cb5df55794099d1644a212628808a0e087049e9b177
                                          • MD5 SHA1 SHA512 SSDEEP

                                          Secure Preferences

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Secure Preferences
                                          • Size 24KB
                                          • SHA256 f98f5543c33c0b85b191bb85718ee7845982275130da1f09e904d220f1c6ceed
                                          • MD5 SHA1 SHA512 SSDEEP

                                          TransportSecurity

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\TransportSecurity
                                          • Size 371B
                                          • SHA256 ab9965b77e601d407b2089154054e69f2816fcdea6616e31653f49aa0099764b
                                          • MD5 SHA1 SHA512

                                          TransportSecurity

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\TransportSecurity
                                          • Size 371B
                                          • SHA256 70127f3f39db291180ac6eb4e533f440adb610acde65d4907269034d9ff128ee
                                          • MD5 SHA1 SHA512

                                          TransportSecurity~RFe584f34.TMP

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\TransportSecurity~RFe584f34.TMP
                                          • Size 371B
                                          • SHA256 6f108263a2f216cd00a76afd0dee7db906145d01765ec8baad419b0359dc70af
                                          • MD5 SHA1 SHA512

                                          CURRENT

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT
                                          • Size 16B
                                          • SHA256 0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd
                                          • MD5 SHA1 SHA512

                                          Local State

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                          • Size 10KB
                                          • SHA256 dd989f820f1f9aa39897f07e77020aad75ac02ac73334c06bbcd7c5601fa4ddf
                                          • MD5 SHA1 SHA512 SSDEEP

                                          Local State

                                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                          • Size 10KB
                                          • SHA256 addb4377ee8025d9a335ecbc9e5f7aa89729bdc8a0ad2030ed068edf2065a64a
                                          • MD5 SHA1 SHA512 SSDEEP

                                          memory/4536-1-0x00000000001C0000-0x00000000001FC000-memory.dmp

                                          memory/4536-0-0x0000000000400000-0x0000000000447000-memory.dmp

                                          memory/4536-66-0x0000000000400000-0x0000000000447000-memory.dmp