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Analysis

  • max time kernel
    50s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2024, 20:46

General

  • Target

    retard.exe

  • Size

    3.1MB

  • MD5

    b55e5489b45595fb38bf5bb30b69717b

  • SHA1

    7511ee8909e0a0c53625eef4bd6b57250e561391

  • SHA256

    4f111d05ddb93bf8e4ec906d2705740790402254ee115982d9e5aae36c3b4ffe

  • SHA512

    40a520e89579a298922595428033b7f0ae0b8bd5bd6ead29488cad9707b153998ab88c3d55316045315297d185fefaaba49ef21b392ca216ac220e75220d1ead

  • SSDEEP

    49152:6vxt62XlaSFNWPjljiFa2RoUYI4N83bR4LoGdzTHHB72eh2NT:6v762XlaSFNWPjljiFXRoUYI4N80

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

afafaf

C2

194.26.192.167:2768

Mutex

c1060262-cacc-4b5e-8e09-ac72d84cef52

Attributes
  • encryption_key

    BE2B0B270E4DB19CAA5C42E9D2EBF64645A2D055

  • install_name

    OneDrive.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    OneDrive

  • subdirectory

    OneDrive

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 1 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 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 34 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:\Users\Admin\AppData\Local\Temp\retard.exe
    "C:\Users\Admin\AppData\Local\Temp\retard.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1984
    • C:\Windows\system32\schtasks.exe
      "schtasks" /create /tn "OneDrive" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\OneDrive\OneDrive.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:3040
  • 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:2980
    • 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,0x7fef0819758,0x7fef0819768,0x7fef0819778
      2⤵
        PID:2240
      • 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=1104 --field-trial-handle=1788,i,3344975333327795754,13991595718647817655,131072 /prefetch:2
        2⤵
          PID:2728
        • 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=1400 --field-trial-handle=1788,i,3344975333327795754,13991595718647817655,131072 /prefetch:8
          2⤵
            PID:1992
          • 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=1456 --field-trial-handle=1788,i,3344975333327795754,13991595718647817655,131072 /prefetch:8
            2⤵
              PID:2352
            • 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=1856 --field-trial-handle=1788,i,3344975333327795754,13991595718647817655,131072 /prefetch:1
              2⤵
                PID:2736
              • 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=1820 --field-trial-handle=1788,i,3344975333327795754,13991595718647817655,131072 /prefetch:1
                2⤵
                  PID:3068
                • 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=2172 --field-trial-handle=1788,i,3344975333327795754,13991595718647817655,131072 /prefetch:2
                  2⤵
                    PID:580
                  • 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=1300 --field-trial-handle=1788,i,3344975333327795754,13991595718647817655,131072 /prefetch:1
                    2⤵
                      PID:808
                    • 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=3676 --field-trial-handle=1788,i,3344975333327795754,13991595718647817655,131072 /prefetch:8
                      2⤵
                        PID:960
                    • 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:556

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

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                      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\Network\Network Persistent State

                        Filesize

                        633B

                        MD5

                        9767c5b239949ab150ecc0e9611195c3

                        SHA1

                        b6f2bcd52457588061c54e39a865f3f9b74d0766

                        SHA256

                        8029d5484029bab8c2436fb53ad9a774cffcc0d833e0030cb4844f50b140bb7c

                        SHA512

                        d5f0224226379b5d63d1ca08066ed2b64fb94f516187fa94f880cd96847d6d40228b05134ae025bae06edad13e874fed836a17666148c0ffb28ed14b26f2e25b

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

                        Filesize

                        5KB

                        MD5

                        172e46391b40caec6ddb705223c93cbe

                        SHA1

                        cddc9b781d29b6c915ea83d0a193705aea932c06

                        SHA256

                        10ba1bb3830d05da75a559e71b7f184a1bebaedb229d0650fbcad8cccfae77ee

                        SHA512

                        d662bac65c83c4f04481951b4748df5aac48b88f2ef13ad992a2cf81b88667b7dcda6a2a84ce1cb91230dfac15b3a00c8ed49278c7e48eae15d42d32cb005251

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

                        Filesize

                        5KB

                        MD5

                        fd1d937e791c9ddd666fffaa8718a5ce

                        SHA1

                        2dfcf4b65c2ea5bb1269ac4e8b0624263b2ed35f

                        SHA256

                        1fbb9093ab50fc41bd7de847d4cea6d8d9b77017bffb7f8914e9346a24c5c1ce

                        SHA512

                        e75f1553bd61a7bfd7667a76fe45705aeb39d8fdb672cb6f0b66fc7451062acbcf59582d5fb65376436abd1d9fb9065c63563da9de8d6fc12d512a3c8a64de90

                      • 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

                      • memory/1984-0-0x000007FEF5E13000-0x000007FEF5E14000-memory.dmp

                        Filesize

                        4KB

                      • memory/1984-1-0x0000000000FC0000-0x00000000012E4000-memory.dmp

                        Filesize

                        3.1MB

                      • memory/1984-2-0x000007FEF5E10000-0x000007FEF67FC000-memory.dmp

                        Filesize

                        9.9MB

                      • memory/1984-60-0x000007FEF5E13000-0x000007FEF5E14000-memory.dmp

                        Filesize

                        4KB

                      • memory/1984-61-0x000007FEF5E10000-0x000007FEF67FC000-memory.dmp

                        Filesize

                        9.9MB