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Analysis

  • max time kernel
    985s
  • max time network
    977s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/08/2024, 10:04

General

  • Target

    Steam.exe

  • Size

    51KB

  • MD5

    eb794f3819b32c9fbc747309bb04cd68

  • SHA1

    a6c24bfb6c2ea4cdf10f0f54c0a4e8ac0380beb3

  • SHA256

    e8fd34b40b83391a855905620e4beeb153d256df196b063bc7845d747f1e7d67

  • SHA512

    0b6cf31c799513b4e0f5ac21180cc7a26451fc54504f03ace353a5a8c598885c594b3375e990ac442e08ffaa1f3e9692cbf6dfb8c035b4380497cefd57288aaf

  • SSDEEP

    768:juMMmVn76G3rspEacCIQgttZX+2V2ltnq7oTmggkbm1t+tuXSWCalOIhu//t/:SMDnv7sKEIHLXyBqCmjkbmn/weOImF/

Malware Config

Extracted

Family

xworm

C2

tree-cleaning.gl.at.ply.gg:33027

Attributes
  • install_file

    USB.exe

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Steam.exe
    "C:\Users\Admin\AppData\Local\Temp\Steam.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3780
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://guns.lol/tuesday.cs
      2⤵
        PID:4464
      • C:\Users\Admin\AppData\Local\Temp\nrvdck.exe
        "C:\Users\Admin\AppData\Local\Temp\nrvdck.exe"
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1540
    • 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 --field-trial-handle=4412,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=4448 /prefetch:8
      1⤵
        PID:4868
      • 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 --field-trial-handle=3876,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=3944 /prefetch:8
        1⤵
          PID:2448
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=18 --field-trial-handle=1296,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=3832 /prefetch:1
          1⤵
            PID:3348
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=17 --field-trial-handle=4448,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=4800 /prefetch:1
            1⤵
              PID:1672
            • 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 --field-trial-handle=5424,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=5436 /prefetch:8
              1⤵
                PID:2680
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=entity_extraction_service.mojom.Extractor --lang=en-US --service-sandbox-type=entity_extraction --onnx-enabled-for-ee --field-trial-handle=5444,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=2324 /prefetch:8
                1⤵
                  PID:540
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=21 --field-trial-handle=5924,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=5860 /prefetch:1
                  1⤵
                    PID:2304
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=22 --field-trial-handle=6112,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=5228 /prefetch:1
                    1⤵
                      PID:5072
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=23 --field-trial-handle=5952,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=4400 /prefetch:1
                      1⤵
                        PID:3180
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=24 --field-trial-handle=5980,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=6004 /prefetch:1
                        1⤵
                          PID:708
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --field-trial-handle=5976,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=6452 /prefetch:8
                          1⤵
                            PID:3268
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=audio.mojom.AudioService --lang=en-US --service-sandbox-type=audio --field-trial-handle=6400,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=6672 /prefetch:8
                            1⤵
                              PID:4272
                            • C:\Windows\system32\AUDIODG.EXE
                              C:\Windows\system32\AUDIODG.EXE 0x2ec 0x4a8
                              1⤵
                              • Suspicious use of AdjustPrivilegeToken
                              PID:1324
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=media.mojom.CdmServiceBroker --lang=en-US --service-sandbox-type=cdm --field-trial-handle=5252,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=5600 /prefetch:8
                              1⤵
                              • Suspicious use of NtSetInformationThreadHideFromDebugger
                              PID:1704
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_collections.mojom.CollectionsDataManager --lang=en-US --service-sandbox-type=collections --field-trial-handle=6600,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=6452 /prefetch:8
                              1⤵
                                PID:880
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_search_indexer.mojom.SearchIndexerInterfaceBroker --lang=en-US --service-sandbox-type=search_indexer --message-loop-type-ui --field-trial-handle=6952,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=6968 /prefetch:8
                                1⤵
                                  PID:1316

                                Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

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

                                  Filesize

                                  131KB

                                  MD5

                                  bd65d387482def1fe00b50406f731763

                                  SHA1

                                  d06a2ba2e29228f443f97d1dd3a8da5dd7df5903

                                  SHA256

                                  1ab7375550516d7445c47fd9b551ed864f227401a14ff3f1ff0d70caca3bd997

                                  SHA512

                                  351ecd109c4d49bc822e8ade73a9516c4a531ebcda63546c155e677dcff19708068dc588b2fcf30cad086238e8b206fc5f349d37dda02d3c3a8d9b570d92e4d9

                                • memory/3780-0-0x00007FFBBCC83000-0x00007FFBBCC85000-memory.dmp

                                  Filesize

                                  8KB

                                • memory/3780-1-0x00000000003E0000-0x00000000003F4000-memory.dmp

                                  Filesize

                                  80KB

                                • memory/3780-2-0x00007FFBBCC80000-0x00007FFBBD741000-memory.dmp

                                  Filesize

                                  10.8MB

                                • memory/3780-3-0x00007FFBBCC83000-0x00007FFBBCC85000-memory.dmp

                                  Filesize

                                  8KB

                                • memory/3780-4-0x00007FFBBCC80000-0x00007FFBBD741000-memory.dmp

                                  Filesize

                                  10.8MB

                                • memory/3780-14-0x00007FFBBCC80000-0x00007FFBBD741000-memory.dmp

                                  Filesize

                                  10.8MB