Resubmissions

17-03-2024 04:56

240317-fkpqlseg53 10

Analysis

  • max time kernel
    156s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-03-2024 04:56

General

  • Target

    cffa8abc1bd0d8409d62b1adb675a6d3.exe

  • Size

    434KB

  • MD5

    cffa8abc1bd0d8409d62b1adb675a6d3

  • SHA1

    37e8bc4d8ffc6ff4256a82bc057960e2cbb022e1

  • SHA256

    ac8ec076126d9905b8a3e677c94607c356bd5418092ac00b25de85cad02f6380

  • SHA512

    7112efdbc879550dd33ddf47f50d44e2ea4ab1e98d2d5d1c48a7f16dc949154228c933095e99050fea61970897c671195f9674bcdece090dc8a0a520e8bc9841

  • SSDEEP

    12288:rXPcLcbGfVylwG/ZDCK/ScBXo8TsyMkKMY8m7WOK9SATTsx/SA/WegYfdNbrqnuk:rXh6XcBXo8TsL8Y8m/ATTySA/DrfdNbC

Score
10/10

Malware Config

Signatures

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

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

  • Uses Tor communications 1 TTPs

    Malware can proxy its traffic through Tor for more anonymity.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 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" --no-startup-window
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1360
    • 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:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=122.0.6261.70 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=122.0.2365.52 --initial-client-data=0x238,0x23c,0x240,0x234,0x2b4,0x7fff9f0a2e98,0x7fff9f0a2ea4,0x7fff9f0a2eb0
      2⤵
        PID:4960
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --mojo-platform-channel-handle=2352 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:2
        2⤵
          PID:2496
        • 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 --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=2388 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:3
          2⤵
            PID:1900
          • 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 --lang=en-US --service-sandbox-type=service --no-appcompat-clear --mojo-platform-channel-handle=2344 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:8
            2⤵
              PID:1940
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --instant-process --no-appcompat-clear --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=11 --mojo-platform-channel-handle=5340 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:1
              2⤵
                PID:816
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=12 --mojo-platform-channel-handle=5468 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:1
                2⤵
                  PID:3904
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1344 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:8
                  2⤵
                    PID:3628
                • C:\Users\Admin\AppData\Local\Temp\cffa8abc1bd0d8409d62b1adb675a6d3.exe
                  "C:\Users\Admin\AppData\Local\Temp\cffa8abc1bd0d8409d62b1adb675a6d3.exe"
                  1⤵
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of SetWindowsHookEx
                  • Suspicious use of WriteProcessMemory
                  PID:4240
                  • C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe
                    "C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe"
                    2⤵
                    • Executes dropped EXE
                    PID:3404

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

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

                  Filesize

                  1KB

                  MD5

                  7eced896f52e92771c022d6cec8843d6

                  SHA1

                  e7564ca2110104eec0caf08b75c9dc1619982fb5

                  SHA256

                  a96fa03a7da2a585127477483cca9a17c42420d71c6aba1e958b9617dd606606

                  SHA512

                  136cfaaf92c9c425c140da89aace9d2f7c995b918a67ea33db0245a5b2049b3ea05f179cd009d0b7e32dd027aa5296cb5aaa44eed6830d070990e22fdef013ad

                • C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe

                  Filesize

                  3KB

                  MD5

                  b4cd27f2b37665f51eb9fe685ec1d373

                  SHA1

                  7f08febf0fdb7fc9f8bf35a10fb11e7de431abe0

                  SHA256

                  91f1023142b7babf6ff75dad984c2a35bde61dc9e61f45483f4b65008576d581

                  SHA512

                  e025f65224d78f5fd0abebe281ac0d44a385b2641e367cf39eed6aefada20a112ac47f94d7febc4424f1db6a6947bac16ff83ef93a8d745b3cddfdbe64c49a1e

                • C:\Users\Admin\AppData\Local\Temp\x64btit.txt

                  Filesize

                  28B

                  MD5

                  316e50151574f976726deab620d4e1f6

                  SHA1

                  b78478f0407655a39b907a1cceb09328ccf5a5b1

                  SHA256

                  fc13d26975d8e6dac2ddae7bd2f685e20d3432003f99751de0180e56846cfd58

                  SHA512

                  c6cd5181344ccbd5eb9aefe8d6d50d45052556e01451c46d3d3d95f6f0a7e8604e5dcb302102fa5364dc69546f9fe43963746575205b721fc3bc09d22db7bef4