Analysis

  • max time kernel
    63s
  • max time network
    67s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    03-12-2024 20:05

General

  • Target

    https://github.com/Da2dalus/The-MALWARE-Repo/raw/refs/heads/master/RAT/CrimsonRAT.exe

Malware Config

Extracted

Family

crimsonrat

C2

185.136.161.124

Signatures

  • CrimsonRAT main payload 1 IoCs
  • CrimsonRat

    Crimson RAT is a malware linked to a Pakistani-linked threat actor.

  • Crimsonrat family
  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 1 IoCs

    When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • NTFS ADS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 9 IoCs
  • Suspicious use of FindShellTrayWindow 35 IoCs
  • Suspicious use of SendNotifyMessage 12 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" --start-maximized --single-argument https://github.com/Da2dalus/The-MALWARE-Repo/raw/refs/heads/master/RAT/CrimsonRAT.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:3188
    • 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=90.0.4430.212 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=90.0.818.66 --initial-client-data=0x100,0x104,0x108,0xdc,0x10c,0x7ffa08613cb8,0x7ffa08613cc8,0x7ffa08613cd8
      2⤵
        PID:4300
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1888,6104054098617071113,11446656787950950525,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1884 /prefetch:2
        2⤵
          PID:4536
        • 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=1888,6104054098617071113,11446656787950950525,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2304 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1876
        • 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=1888,6104054098617071113,11446656787950950525,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2756 /prefetch:8
          2⤵
            PID:1380
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1888,6104054098617071113,11446656787950950525,131072 --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=3300 /prefetch:1
            2⤵
              PID:1396
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1888,6104054098617071113,11446656787950950525,131072 --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:2372
              • C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1888,6104054098617071113,11446656787950950525,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5392 /prefetch:8
                2⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:1080
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1888,6104054098617071113,11446656787950950525,131072 --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=2744 /prefetch:1
                2⤵
                  PID:3724
                • 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=1888,6104054098617071113,11446656787950950525,131072 --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5948 /prefetch:8
                  2⤵
                    PID:2972
                  • 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.UtilWin --field-trial-handle=1888,6104054098617071113,11446656787950950525,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5700 /prefetch:8
                    2⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:4900
                  • 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=1888,6104054098617071113,11446656787950950525,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5816 /prefetch:8
                    2⤵
                    • Subvert Trust Controls: Mark-of-the-Web Bypass
                    • NTFS ADS
                    • Suspicious behavior: EnumeratesProcesses
                    PID:3484
                  • C:\Users\Admin\Downloads\CrimsonRAT.exe
                    "C:\Users\Admin\Downloads\CrimsonRAT.exe"
                    2⤵
                    • Executes dropped EXE
                    PID:3208
                    • C:\ProgramData\Hdlharas\dlrarhsiva.exe
                      "C:\ProgramData\Hdlharas\dlrarhsiva.exe"
                      3⤵
                      • Executes dropped EXE
                      PID:1412
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1888,6104054098617071113,11446656787950950525,131072 --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=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5760 /prefetch:1
                    2⤵
                      PID:4932
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1888,6104054098617071113,11446656787950950525,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=1844 /prefetch:1
                      2⤵
                        PID:4956
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1888,6104054098617071113,11446656787950950525,131072 --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=15 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5796 /prefetch:1
                        2⤵
                          PID:1100
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1888,6104054098617071113,11446656787950950525,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=16 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=984 /prefetch:1
                          2⤵
                            PID:4456
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1888,6104054098617071113,11446656787950950525,131072 --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=17 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5604 /prefetch:1
                            2⤵
                              PID:2936
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1888,6104054098617071113,11446656787950950525,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=18 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5416 /prefetch:1
                              2⤵
                                PID:3156
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:1012
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:2028
                                • C:\Windows\System32\rundll32.exe
                                  C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                                  1⤵
                                    PID:1624
                                  • C:\Users\Admin\Downloads\CrimsonRAT.exe
                                    "C:\Users\Admin\Downloads\CrimsonRAT.exe"
                                    1⤵
                                    • Executes dropped EXE
                                    PID:3820
                                    • C:\ProgramData\Hdlharas\dlrarhsiva.exe
                                      "C:\ProgramData\Hdlharas\dlrarhsiva.exe"
                                      2⤵
                                      • Executes dropped EXE
                                      PID:4848

                                  Network

                                  MITRE ATT&CK Enterprise v15

                                  Replay Monitor

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                                  Downloads

                                  • C:\ProgramData\Hdlharas\dlrarhsiva.exe

                                    Filesize

                                    9.1MB

                                    MD5

                                    64261d5f3b07671f15b7f10f2f78da3f

                                    SHA1

                                    d4f978177394024bb4d0e5b6b972a5f72f830181

                                    SHA256

                                    87f51b4632c5fbc351a59a234dfefef506d807f2c173aac23162b85d0d73c2ad

                                    SHA512

                                    3a9ff39e6bc7585b0b03f7327652e4c3b766563e8b183c25b6497e30956945add5684f1579862117e44c6bac2802601fc7c4d2a0daa1824f16c4da1fd6c9c91a

                                  • C:\ProgramData\Hdlharas\mdkhm.zip

                                    Filesize

                                    56KB

                                    MD5

                                    b635f6f767e485c7e17833411d567712

                                    SHA1

                                    5a9cbdca7794aae308c44edfa7a1ff5b155e4aa8

                                    SHA256

                                    6838286fb88e9e4e68882601a13fa770f1b510a0a86389b6a29070a129bf2e5e

                                    SHA512

                                    551ba05bd44e66685f359802b35a8c9775792a12844906b4b53e1a000d56624c6db323754331c9f399072790991c1b256d9114a50fb78111652a1c973d2880af

                                  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\CrimsonRAT.exe.log

                                    Filesize

                                    1KB

                                    MD5

                                    8e0f23092b7a620dc2f45b4a9a596029

                                    SHA1

                                    58cc7c47602c73529e91ff9db3c74ff05459e4ea

                                    SHA256

                                    58b9918225aee046894cb3c6263687bfe4b5a5b8dff7196d72687d0f3f735034

                                    SHA512

                                    be458f811ad6a1f6b320e8d3e68e71062a8de686bae77c400d65091947b805c95024f3f1837e088cf5ecac5388d36f354285a6b57f91ea55567f19706128a043

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

                                    Filesize

                                    152B

                                    MD5

                                    fdee96b970080ef7f5bfa5964075575e

                                    SHA1

                                    2c821998dc2674d291bfa83a4df46814f0c29ab4

                                    SHA256

                                    a241023f360b300e56b2b0e1205b651e1244b222e1f55245ca2d06d3162a62f0

                                    SHA512

                                    20875c3002323f5a9b1b71917d6bd4e4c718c9ca325c90335bd475ddcb25eac94cb3f29795fa6476d6d6e757622b8b0577f008eec2c739c2eec71d2e8b372cff

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

                                    Filesize

                                    152B

                                    MD5

                                    46e6ad711a84b5dc7b30b75297d64875

                                    SHA1

                                    8ca343bfab1e2c04e67b9b16b8e06ba463b4f485

                                    SHA256

                                    77b51492a40a511e57e7a7ecf76715a2fd46533c0f0d0d5a758f0224e201c77f

                                    SHA512

                                    8472710b638b0aeee4678f41ed2dff72b39b929b2802716c0c9f96db24c63096b94c9969575e4698f16e412f82668b5c9b5cb747e8a2219429dbb476a31d297e

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

                                    Filesize

                                    5KB

                                    MD5

                                    0e9a9a5a172b7cfea56ed175b12b8381

                                    SHA1

                                    8fa5f2c3f8331e456d0e4630cfdafedafdcd456b

                                    SHA256

                                    da32677cdbdc22c8d4f3045f3dd5e26f3aa618a51a30d16ddef37423fd114eb3

                                    SHA512

                                    ca8969b338c5fe2760935ae0f75ef84198a155a0c81b186c2e70a29ea633844954b13102467a78750925edb0b064c335e595b25393d8ca9ada6e137c08929883

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

                                    Filesize

                                    5KB

                                    MD5

                                    1fd3853916835a0ec6f11d88b00a7b6b

                                    SHA1

                                    3106d13055b317f4092baa64752adf3fac0f5f38

                                    SHA256

                                    0bf07100c838f739a66979f37f1462da36f1ebd34b592045a18471c45f1a8cde

                                    SHA512

                                    f76648a5d7e73e011656aba34fdd1b18c8a25625957f2748daf6f1a8ede4dbb04b628f87158356de3cdf8d749e449678be7f49275a59f5b7369c3ea68b0e47f0

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

                                    Filesize

                                    5KB

                                    MD5

                                    d38b71bb6ddf0400766a742540d5a19f

                                    SHA1

                                    c2a3845c929f6940b479d18831a549d9f2043a09

                                    SHA256

                                    9b173d47b610ce626074949171552a6b4fde6716ac62c5f20bd25392d04029b6

                                    SHA512

                                    71f4405e7774deee21c38b1c9ac3b3f71429fcc87a49bb0eea8be6c26cefb3b9ec359c3af8768058e2dfd48f2c7bf8a3267694be7119557fc7ae4623cbd69599

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

                                    Filesize

                                    16B

                                    MD5

                                    46295cac801e5d4857d09837238a6394

                                    SHA1

                                    44e0fa1b517dbf802b18faf0785eeea6ac51594b

                                    SHA256

                                    0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

                                    SHA512

                                    8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

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

                                    Filesize

                                    16B

                                    MD5

                                    206702161f94c5cd39fadd03f4014d98

                                    SHA1

                                    bd8bfc144fb5326d21bd1531523d9fb50e1b600a

                                    SHA256

                                    1005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167

                                    SHA512

                                    0af09f26941b11991c750d1a2b525c39a8970900e98cba96fd1b55dbf93fee79e18b8aab258f48b4f7bda40d059629bc7770d84371235cdb1352a4f17f80e145

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

                                    Filesize

                                    10KB

                                    MD5

                                    25f2f0059fee87ce75f8a6d3b31cd6ba

                                    SHA1

                                    d9507f4cdc76ec13e6c4e60518bcf5c5b693fca4

                                    SHA256

                                    b1b9cf450d675fd39c7cc2404b0e2c2e0d3d0b648c947e9a6df3c95ea49ade6c

                                    SHA512

                                    a0440ff9f8cfffa150654881887ca927da8cb7cc17cfb3a4eb31351bc06e6b9628a1e22fc00932f57a2151406a4e76fa4cfc3261e4d0c79716e971db51e1f2b6

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

                                    Filesize

                                    10KB

                                    MD5

                                    f9f48db46a05dd650a5062f2d7be599f

                                    SHA1

                                    23bae946a04fc7394b09c717c301ceaa006e23cf

                                    SHA256

                                    ba9d2680164978d02b5162abbf6e955e7561d28d916f14dc5a124b6ed497db45

                                    SHA512

                                    ba56c18723f60d57c2e1dda10e7f55fbd1ffbdd58f1f2f6ac22e7870b7a6af4383c0464b74a2beb5e7fa731db43e40a4ba93507925a95aaec68723efd2de5e0e

                                  • C:\Users\Admin\Downloads\CrimsonRAT.exe:Zone.Identifier

                                    Filesize

                                    132B

                                    MD5

                                    f2ada5540672395a9f720611ea8b7859

                                    SHA1

                                    1befa5050c82c09c32e047d24489290c79181c5e

                                    SHA256

                                    dbb657484a15c9a783f1797cacb822dd98ab7321c1ba507fb8c435011414a331

                                    SHA512

                                    c209df71b1a55aa433881fddbdbde81485f6473772dca628472c60e51dbc9dfa406b34d8b4a334aa7fcfe34936494e1a26cc4f52c427b145467ec1af08111e58

                                  • C:\Users\Admin\Downloads\Unconfirmed 857245.crdownload

                                    Filesize

                                    84KB

                                    MD5

                                    b6e148ee1a2a3b460dd2a0adbf1dd39c

                                    SHA1

                                    ec0efbe8fd2fa5300164e9e4eded0d40da549c60

                                    SHA256

                                    dc31e710277eac1b125de6f4626765a2684d992147691a33964e368e5f269cba

                                    SHA512

                                    4b8c62ddfc7cd3e5ce1f8b5a1ba4a611ab1bfccf81d80cf2cfc831cffa1d7a4b6da0494616a53b419168bc3a324b57382d4a6186af083de6fc93d144c4503741

                                  • memory/1412-116-0x000001D6983F0000-0x000001D698D04000-memory.dmp

                                    Filesize

                                    9.1MB

                                  • memory/3208-84-0x000002A281B00000-0x000002A281B1E000-memory.dmp

                                    Filesize

                                    120KB