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Resubmissions

26/01/2025, 17:48

250126-wdl9xayjfw 10

26/01/2025, 17:45

250126-wbvs9syjax 10

Analysis

  • max time kernel
    92s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26/01/2025, 17:45

General

  • Target

    eclipse executor.zip

  • Size

    1.2MB

  • MD5

    ef28e032613646978bcb9219e5a490c9

  • SHA1

    539a9c11014f6d0341a44348ac059da0649dc138

  • SHA256

    78c3578aa894e56a27efeaa4daa26b2effd9e90a3ffaa32abea06f78e19ba735

  • SHA512

    9bfb694ed46ff4609e2a06600f1d643be478a0f744bb6c42c6fa292e7f13214b6b2ddf34b1253e74013155c53864473b50ad14f297aa8f1fcb047cdc42428536

  • SSDEEP

    24576:mdWpNNMHjlvOSQ57JhMIfDAFq46yQj1gq9zvJcX5O93LyPOQNb53XiFG:julk7JhMWsYWae/h53XiFG

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

made

C2

2001:569:7e70:6a00:c8f3:749c:278f:2c17:4782

Mutex

9d96368e-1352-46e3-8281-8f5eaf945edb

Attributes
  • encryption_key

    AF603C3CFA231D1BD841E315C27377C7E4A49333

  • install_name

    client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Java startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 3 IoCs
  • Executes dropped EXE 2 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 36 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Program Files\7-Zip\7zFM.exe
    "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\eclipse executor.zip"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2344
    • C:\Users\Admin\AppData\Local\Temp\7zO829E0B57\eclipse executor.exe
      "C:\Users\Admin\AppData\Local\Temp\7zO829E0B57\eclipse executor.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1928
      • C:\Windows\system32\schtasks.exe
        "schtasks" /create /tn "Java startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\client.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2828
      • C:\Users\Admin\AppData\Roaming\SubDir\client.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\client.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2716
        • C:\Windows\system32\schtasks.exe
          "schtasks" /create /tn "Java startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\client.exe" /rl HIGHEST /f
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2680
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    1⤵
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2756
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef0729758,0x7fef0729768,0x7fef0729778
      2⤵
        PID:2564
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1168 --field-trial-handle=1384,i,16946811865282469608,6589328845486032389,131072 /prefetch:2
        2⤵
          PID:1956
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=1420 --field-trial-handle=1384,i,16946811865282469608,6589328845486032389,131072 /prefetch:8
          2⤵
            PID:2372
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1388 --field-trial-handle=1384,i,16946811865282469608,6589328845486032389,131072 /prefetch:8
            2⤵
              PID:1944
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2268 --field-trial-handle=1384,i,16946811865282469608,6589328845486032389,131072 /prefetch:1
              2⤵
                PID:2928
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2288 --field-trial-handle=1384,i,16946811865282469608,6589328845486032389,131072 /prefetch:1
                2⤵
                  PID:924
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1768 --field-trial-handle=1384,i,16946811865282469608,6589328845486032389,131072 /prefetch:2
                  2⤵
                    PID:1700
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=1532 --field-trial-handle=1384,i,16946811865282469608,6589328845486032389,131072 /prefetch:1
                    2⤵
                      PID:3000
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3652 --field-trial-handle=1384,i,16946811865282469608,6589328845486032389,131072 /prefetch:8
                      2⤵
                        PID:1848
                    • C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
                      "C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
                      1⤵
                        PID:2980

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GCM Store\Encryption\000006.dbtmp

                        Filesize

                        16B

                        MD5

                        aefd77f47fb84fae5ea194496b44c67a

                        SHA1

                        dcfbb6a5b8d05662c4858664f81693bb7f803b82

                        SHA256

                        4166bf17b2da789b0d0cc5c74203041d98005f5d4ef88c27e8281e00148cd611

                        SHA512

                        b733d502138821948267a8b27401d7c0751e590e1298fda1428e663ccd02f55d0d2446ff4bc265bdcdc61f952d13c01524a5341bc86afc3c2cde1d8589b2e1c3

                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1

                        Filesize

                        264KB

                        MD5

                        f50f89a0a91564d0b8a211f8921aa7de

                        SHA1

                        112403a17dd69d5b9018b8cede023cb3b54eab7d

                        SHA256

                        b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

                        SHA512

                        bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                        Filesize

                        5KB

                        MD5

                        aff30a32c01fceea6dce6df2b3c24e44

                        SHA1

                        aad99fc7760f43e8abb181c4eb0daf3a4db6b8be

                        SHA256

                        089431e7e072177783bc5ab95f351cd50723a289875e689e064f2bd53a9a5c7a

                        SHA512

                        fc645bc45944d8cd8af4cf9dbe068a6b965e16b35104579f816d9244b01fb90e4b1f54788fc8c1369af4db1069fc33ff3fd779a8800b507fd49d9d736af4e0f0

                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                        Filesize

                        5KB

                        MD5

                        7afe1bd120ccfc876a7461d4ebf9f5fb

                        SHA1

                        3f08bef3dbfb54fc769e2ab8cccea7c7898d4b58

                        SHA256

                        141f602fa0cd8d084ac6283829b52085caacfcc8bd82be46d68b47f13b4e7b49

                        SHA512

                        64da15dd1f00f9a4efe2c727343e54ba9bbddce8fa1dee64b0ef9840ab3fa711a5207e3f6227816cccf06fcfa3d77da78caa58b53637e6d115de765bcf1cd377

                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\000007.dbtmp

                        Filesize

                        16B

                        MD5

                        18e723571b00fb1694a3bad6c78e4054

                        SHA1

                        afcc0ef32d46fe59e0483f9a3c891d3034d12f32

                        SHA256

                        8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

                        SHA512

                        43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

                      • C:\Users\Admin\AppData\Local\Temp\7zO829E0B57\eclipse executor.exe

                        Filesize

                        3.1MB

                        MD5

                        1512ffa41753d2f49de5b5296f5c174e

                        SHA1

                        596412e03c09c60c822f6e0d12072e4cb861fa72

                        SHA256

                        1df2e7dd996b5cfc2aea6b38548ef0375664ef618743bbcb623df319f9e48f3e

                        SHA512

                        b07550d650a0960b0ffda941e0a71c4ce4630964cd74c58e2ae21225cceb1666c6d1de234a0f1802578f4a9afeca653cd1f295bd4d5a97d4afbd1ff0f5f582f5

                      • memory/1928-11-0x0000000000820000-0x0000000000B44000-memory.dmp

                        Filesize

                        3.1MB

                      • memory/2716-16-0x0000000000AB0000-0x0000000000DD4000-memory.dmp

                        Filesize

                        3.1MB