Analysis

  • max time kernel
    264s
  • max time network
    304s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    30-05-2024 13:10

General

  • Target

    Uni.exe

  • Size

    409KB

  • MD5

    78f15f52152da9355915d646d5f4f1e6

  • SHA1

    514623af0d40968570977bb0993bc775b5dcb6cb

  • SHA256

    6526c22d7ce386857149b6b5615c1c24cab7691496a1d3d849ead5d3e0b7b0c7

  • SHA512

    13752ce045c2f7f0be187a6688b4032579fce7f17e8b77f66f192ee472aa58e60a1c5ea34dd85cb704e621afe4f228df880536159a7a907c41fbfeba3180a87d

  • SSDEEP

    12288:ypbJjGukXuXQiwWlaJKwuKOASp2uLBUS:2VauOWERPIpB

Malware Config

Extracted

Family

quasar

Version

3.1.5

Botnet

SeroXen

C2

panel-slave.gl.at.ply.gg:57059

panel-slave.gl.at.ply.gg:27892

Mutex

$Sxr-rpL8EItHN3pqIQQVy2

Attributes
  • encryption_key

    PXEHWy52mqnqS2Hd39SK

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    SeroXen

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Creates scheduled task(s) 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Uni.exe
    "C:\Users\Admin\AppData\Local\Temp\Uni.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2764
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\Uni.exe" /rl HIGHEST /f
      2⤵
      • Creates scheduled task(s)
      PID:3476
    • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
      "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2604
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
        3⤵
        • Creates scheduled task(s)
        PID:4828
    • C:\Windows\SysWOW64\SCHTASKS.exe
      "SCHTASKS.exe" /create /tn "$77Uni.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\Uni.exe'" /sc onlogon /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:4964
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --profile-directory=Default
    1⤵
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    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=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,0x7ffeec0a3cb8,0x7ffeec0a3cc8,0x7ffeec0a3cd8
      2⤵
        PID:3220
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1840,6162485113332165000,15673590375807460682,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1832 /prefetch:2
        2⤵
          PID:1476
        • 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=1840,6162485113332165000,15673590375807460682,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2308 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          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=storage.mojom.StorageService --field-trial-handle=1840,6162485113332165000,15673590375807460682,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2548 /prefetch:8
          2⤵
            PID:4244
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1840,6162485113332165000,15673590375807460682,131072 --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=3172 /prefetch:1
            2⤵
              PID:2576
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1840,6162485113332165000,15673590375807460682,131072 --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=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3180 /prefetch:1
              2⤵
                PID:1916
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1840,6162485113332165000,15673590375807460682,131072 --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=4764 /prefetch:1
                2⤵
                  PID:236
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1840,6162485113332165000,15673590375807460682,131072 --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=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4488 /prefetch:1
                  2⤵
                    PID:3192
                  • 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=1840,6162485113332165000,15673590375807460682,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4568 /prefetch:8
                    2⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:4104
                  • 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=1840,6162485113332165000,15673590375807460682,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3760 /prefetch:8
                    2⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1448
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1840,6162485113332165000,15673590375807460682,131072 --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=5064 /prefetch:1
                    2⤵
                      PID:4144
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1840,6162485113332165000,15673590375807460682,131072 --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=3780 /prefetch:1
                      2⤵
                        PID:4052
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1840,6162485113332165000,15673590375807460682,131072 --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=4780 /prefetch:1
                        2⤵
                          PID:3744
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1840,6162485113332165000,15673590375807460682,131072 --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=10.0.22000.1 --gpu-preferences=SAAAAAAAAADoAAAwAAAAAAAAAAAAAAAAAABgAAAQAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=5860 /prefetch:2
                          2⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:2916
                      • C:\Windows\System32\CompPkgSrv.exe
                        C:\Windows\System32\CompPkgSrv.exe -Embedding
                        1⤵
                          PID:3380
                        • C:\Windows\System32\CompPkgSrv.exe
                          C:\Windows\System32\CompPkgSrv.exe -Embedding
                          1⤵
                            PID:3916

                          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

                            0c705388d79c00418e5c1751159353e3

                            SHA1

                            aaeafebce5483626ef82813d286511c1f353f861

                            SHA256

                            697bd270be634688c48210bee7c5111d7897fd71a6af0bbb2141cefd2f8e4a4d

                            SHA512

                            c1614e79650ab9822c4e175ba528ea4efadc7a6313204e4e69b4a9bd06327fb92f56fba95f2595885b1604ca8d8f6b282ab542988995c674d89901da2bc4186f

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

                            Filesize

                            152B

                            MD5

                            0d84d1490aa9f725b68407eab8f0030e

                            SHA1

                            83964574467b7422e160af34ef024d1821d6d1c3

                            SHA256

                            40c09bb0248add089873d1117aadefb46c1b4e23241ba4621f707312de9c829e

                            SHA512

                            f84552335ff96b5b4841ec26e222c24af79b6d0271d27ad05a9dfcee254a7b9e9019e7fac0def1245a74754fae81f7126499bf1001615073284052aaa949fa00

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

                            Filesize

                            180B

                            MD5

                            00a455d9d155394bfb4b52258c97c5e5

                            SHA1

                            2761d0c955353e1982a588a3df78f2744cfaa9df

                            SHA256

                            45a13c77403533b12fbeeeb580e1c32400ca17a32e15caa8c8e6a180ece27fed

                            SHA512

                            9553f8553332afbb1b4d5229bbf58aed7a51571ab45cbf01852b36c437811befcbc86f80ec422f222963fa7dabb04b0c9ae72e9d4ff2eeb1e58cde894fbe234f

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

                            Filesize

                            5KB

                            MD5

                            1fd4d4ea16c16c0917dd5c73319a4731

                            SHA1

                            3dc30aa1ba00a180da1ac5bcf3c6e1027d6bfa97

                            SHA256

                            586c809e65c5bc41fab8ed654113d0cb85026e7615aa00f5bb3a3016b8164a0e

                            SHA512

                            12db4e3819ca93ded1aa232905fd41d00b7b19927441cf776004850fa4779cd3973db02a2bed97559e5de85faf04815d8c1c3bcb7f866e736ffaba34517a6c7a

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

                            Filesize

                            5KB

                            MD5

                            722b58811980992f490e0816592906da

                            SHA1

                            0ba6f4f54492037f4ada644a1417b1dfd51ae07c

                            SHA256

                            64858ce03f71bffe97cf1a20d55bdaa43eb7b58ab2c35f709004f7a5a6f38c67

                            SHA512

                            9191db9b682738b1425f793338a6c66864aa98c32be4aa4bc68f52a33f4075cf03acd3f9c74ea6ea747aff1f42d521993007414b649af3e0b4fee133ee983e36

                          • 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

                            11KB

                            MD5

                            68e7308128f82766e99aca17ec32a695

                            SHA1

                            aed6382a42bd53ba4f2e08b38613dec4615d52c2

                            SHA256

                            cd24bfe279af8cf2bc3ca9f8cf0a2af3d0c166c0b250260b62b0031a1a9ebe97

                            SHA512

                            2a39e280090a1851bc7a32d59c4d05256d92ed5e83b1f8fc75699f7c637e58e920df1f4fb4610b41fb11b127dac05696224add6abce019e9dec98d4957593406

                          • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe

                            Filesize

                            409KB

                            MD5

                            78f15f52152da9355915d646d5f4f1e6

                            SHA1

                            514623af0d40968570977bb0993bc775b5dcb6cb

                            SHA256

                            6526c22d7ce386857149b6b5615c1c24cab7691496a1d3d849ead5d3e0b7b0c7

                            SHA512

                            13752ce045c2f7f0be187a6688b4032579fce7f17e8b77f66f192ee472aa58e60a1c5ea34dd85cb704e621afe4f228df880536159a7a907c41fbfeba3180a87d

                          • \??\pipe\LOCAL\crashpad_4592_FHUXYLBUDPGZDRTZ

                            MD5

                            d41d8cd98f00b204e9800998ecf8427e

                            SHA1

                            da39a3ee5e6b4b0d3255bfef95601890afd80709

                            SHA256

                            e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                            SHA512

                            cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                          • memory/2604-42-0x0000000074E00000-0x00000000755B1000-memory.dmp

                            Filesize

                            7.7MB

                          • memory/2604-13-0x0000000074E00000-0x00000000755B1000-memory.dmp

                            Filesize

                            7.7MB

                          • memory/2604-18-0x00000000062F0000-0x00000000062FA000-memory.dmp

                            Filesize

                            40KB

                          • memory/2604-19-0x0000000074E00000-0x00000000755B1000-memory.dmp

                            Filesize

                            7.7MB

                          • memory/2604-14-0x0000000074E00000-0x00000000755B1000-memory.dmp

                            Filesize

                            7.7MB

                          • memory/2764-6-0x0000000006340000-0x0000000006352000-memory.dmp

                            Filesize

                            72KB

                          • memory/2764-7-0x0000000006870000-0x00000000068AC000-memory.dmp

                            Filesize

                            240KB

                          • memory/2764-16-0x0000000074E00000-0x00000000755B1000-memory.dmp

                            Filesize

                            7.7MB

                          • memory/2764-0-0x0000000074E0E000-0x0000000074E0F000-memory.dmp

                            Filesize

                            4KB

                          • memory/2764-5-0x0000000005600000-0x0000000005666000-memory.dmp

                            Filesize

                            408KB

                          • memory/2764-4-0x0000000074E00000-0x00000000755B1000-memory.dmp

                            Filesize

                            7.7MB

                          • memory/2764-3-0x0000000005560000-0x00000000055F2000-memory.dmp

                            Filesize

                            584KB

                          • memory/2764-2-0x0000000005B10000-0x00000000060B6000-memory.dmp

                            Filesize

                            5.6MB

                          • memory/2764-1-0x00000000009F0000-0x0000000000A5C000-memory.dmp

                            Filesize

                            432KB