Analysis

  • max time kernel
    141s
  • max time network
    295s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/06/2024, 14:19

General

  • Target
    http://5.42.66.10/download/th/space.php
  • Sample240625-rm7vravdke

Malware Config

Extracted

Family
  • stealc

rc4.plain

Extracted

Family
  • vidar

Version
  • 10.1

Botnet
  • 85e5ab22cf33aa5065a9f4df634d4c87

C2
  • https://t.me/memve4erin

  • https://steamcommunity.com/profiles/76561199699680841

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Signatures

  • Detect Vidar Stealer 6 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 3 IoCs
  • Program crash 2 IoCs
  • Checks processor information in registry 2 TTPs 1 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 46 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 46 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument http://5.42.66.10/download/th/space.php
    1⤵
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2260
    • 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=0xfc,0x100,0x104,0xd8,0x108,0x7ffd94569758,0x7ffd94569768,0x7ffd94569778
      2⤵
        PID:2428
      • 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=1740 --field-trial-handle=1872,i,5522582880367634134,7232086266140724226,131072 /prefetch:2
        2⤵
          PID:3204
        • 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=2112 --field-trial-handle=1872,i,5522582880367634134,7232086266140724226,131072 /prefetch:8
          2⤵
            PID:4260
          • 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=2144 --field-trial-handle=1872,i,5522582880367634134,7232086266140724226,131072 /prefetch:8
            2⤵
              PID:1868
            • 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=2964 --field-trial-handle=1872,i,5522582880367634134,7232086266140724226,131072 /prefetch:1
              2⤵
                PID:5612
              • 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=3000 --field-trial-handle=1872,i,5522582880367634134,7232086266140724226,131072 /prefetch:1
                2⤵
                  PID:5444
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=4604 --field-trial-handle=1872,i,5522582880367634134,7232086266140724226,131072 /prefetch:8
                  2⤵
                    PID:5904
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=4648 --field-trial-handle=1872,i,5522582880367634134,7232086266140724226,131072 /prefetch:8
                    2⤵
                      PID:5900
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4728 --field-trial-handle=1872,i,5522582880367634134,7232086266140724226,131072 /prefetch:8
                      2⤵
                        PID:5508
                      • 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=4696 --field-trial-handle=1872,i,5522582880367634134,7232086266140724226,131072 /prefetch:8
                        2⤵
                          PID:5492
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5032 --field-trial-handle=1872,i,5522582880367634134,7232086266140724226,131072 /prefetch:8
                          2⤵
                            PID:3884
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=4964 --field-trial-handle=1872,i,5522582880367634134,7232086266140724226,131072 /prefetch:8
                            2⤵
                              PID:340
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5056 --field-trial-handle=1872,i,5522582880367634134,7232086266140724226,131072 /prefetch:8
                              2⤵
                                PID:116
                              • C:\Users\Admin\Downloads\softwaredef.exe
                                "C:\Users\Admin\Downloads\softwaredef.exe"
                                2⤵
                                • Executes dropped EXE
                                • Suspicious use of SetThreadContext
                                PID:3476
                                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
                                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
                                  3⤵
                                  • Checks processor information in registry
                                  • Suspicious behavior: EnumeratesProcesses
                                  PID:5472
                                  • C:\ProgramData\GCBFBGCGIJ.exe
                                    "C:\ProgramData\GCBFBGCGIJ.exe"
                                    4⤵
                                    • Executes dropped EXE
                                    • Suspicious use of SetThreadContext
                                    PID:5368
                                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                                      5⤵
                                      • Suspicious behavior: EnumeratesProcesses
                                      PID:6056
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -u -p 5368 -s 304
                                      5⤵
                                      • Program crash
                                      PID:5980
                                  • C:\ProgramData\CAFHIJDHDG.exe
                                    "C:\ProgramData\CAFHIJDHDG.exe"
                                    4⤵
                                    • Executes dropped EXE
                                    • Suspicious use of SetThreadContext
                                    PID:4964
                                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                                      5⤵
                                        PID:1656
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -u -p 4964 -s 308
                                        5⤵
                                        • Program crash
                                        PID:3232
                                    • C:\Windows\SysWOW64\cmd.exe
                                      "C:\Windows\System32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\JEGHDAFIDGDA" & exit
                                      4⤵
                                        PID:5964
                                        • C:\Windows\SysWOW64\timeout.exe
                                          timeout /t 10
                                          5⤵
                                          • Delays execution with timeout.exe
                                          PID:5796
                                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --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=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAACQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1704 --field-trial-handle=1872,i,5522582880367634134,7232086266140724226,131072 /prefetch:2
                                    2⤵
                                    • Suspicious behavior: EnumeratesProcesses
                                    PID:3208
                                • 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:5376
                                  • 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=3996 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
                                    1⤵
                                      PID:528
                                    • 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=2340 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:3
                                      1⤵
                                        PID:4352
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5368 -ip 5368
                                        1⤵
                                          PID:4696
                                        • C:\Windows\SysWOW64\WerFault.exe
                                          C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4964 -ip 4964
                                          1⤵
                                            PID:5376

                                          Network

                                                MITRE ATT&CK Enterprise v15

                                                Replay Monitor

                                                Loading Replay Monitor...

                                                Downloads

                                                CAFHIJDHDG.exe

                                                • Path C:\ProgramData\CAFHIJDHDG.exe
                                                • Size 1.8MB
                                                • SHA256 514efbae5faa43878c743c3db36f81c25ab5d6da93b879b6e88e7a63b1b19769
                                                • MD5 SHA1 SHA512 SSDEEP

                                                GCBFBGCGIJ.exe

                                                • Path C:\ProgramData\GCBFBGCGIJ.exe
                                                • Size 632KB
                                                • SHA256 cc6d774ca5b7d8d89289ccace5a25c5c3db0b30c330c10f0233c1d0cb8c9e24c
                                                • MD5 SHA1 SHA512 SSDEEP

                                                History

                                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\History
                                                • Size 148KB
                                                • SHA256 a9119e57173df1734c3b4128cc2a63b1d867410b3e721de6443f0a142ba40f03
                                                • MD5 SHA1 SHA512 SSDEEP

                                                Preferences

                                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                                • Size 5KB
                                                • SHA256 e595103a827c8ce514cc363adf378e37576fc8198381f96e828c3e3cf3ced7e6
                                                • MD5 SHA1 SHA512 SSDEEP

                                                Preferences

                                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                                • Size 5KB
                                                • SHA256 a6b0216089be1198c70deb95514be2f070e3f5856c8cec94b7fa14996d17803b
                                                • MD5 SHA1 SHA512 SSDEEP

                                                Preferences

                                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                                • Size 5KB
                                                • SHA256 c2e59182d3c9f1182c9eadaad427e31e76cb7f4adb26e241691b72cac702cbcd
                                                • MD5 SHA1 SHA512 SSDEEP

                                                Preferences

                                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                                • Size 5KB
                                                • SHA256 c7c84e8cf849efcb0fc3dedec1b4ace5ba3cd7850460315fe3305e80fecd0092
                                                • MD5 SHA1 SHA512 SSDEEP

                                                Local State

                                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                                • Size 128KB
                                                • SHA256 fa4ce371fb184d2541f9ae9f67ecefa39a47166955b89254b21ad1075cafc7f9
                                                • MD5 SHA1 SHA512 SSDEEP

                                                persisted_first_party_sets.json

                                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\persisted_first_party_sets.json
                                                • Size 2B
                                                • SHA256 44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a
                                                • MD5 SHA1 SHA512

                                                SCT Auditing Pending Reports

                                                • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports
                                                • Size 2B
                                                • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                                                • MD5 SHA1 SHA512

                                                Sdch Dictionaries

                                                • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries
                                                • Size 40B
                                                • SHA256 6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d
                                                • MD5 SHA1 SHA512

                                                softwaredef.exe

                                                • Path C:\Users\Admin\Downloads\softwaredef.exe
                                                • Size 5.1MB
                                                • SHA256 c8883f098885598233e55dd11234369ae54c4b4ea617c4a2e8401c2e8cf0c127
                                                • MD5 SHA1 SHA512 SSDEEP

                                                memory/3476-124-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-84-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-130-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-128-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-126-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-120-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-122-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-76-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-118-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-116-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-114-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-112-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-108-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-106-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-104-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-102-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-100-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-98-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-94-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-92-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-90-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-88-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-86-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-82-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-80-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-134-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-78-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-110-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-96-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-132-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-75-0x00000000058E0000-0x00000000058F5000-memory.dmp

                                                memory/3476-144-0x0000000074D00000-0x00000000754B0000-memory.dmp

                                                memory/3476-65-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

                                                memory/3476-66-0x00000000009D0000-0x0000000000EF6000-memory.dmp

                                                memory/3476-69-0x00000000059C0000-0x0000000005A5C000-memory.dmp

                                                memory/3476-150-0x0000000074D00000-0x00000000754B0000-memory.dmp

                                                memory/3476-70-0x0000000074D00000-0x00000000754B0000-memory.dmp

                                                memory/3476-74-0x00000000058E0000-0x00000000058FC000-memory.dmp

                                                memory/3476-73-0x0000000005A60000-0x0000000005B7E000-memory.dmp

                                                memory/5472-145-0x0000000000400000-0x000000000064B000-memory.dmp

                                                memory/5472-162-0x0000000000400000-0x000000000064B000-memory.dmp

                                                memory/5472-149-0x0000000000400000-0x000000000064B000-memory.dmp

                                                memory/5472-147-0x0000000000400000-0x000000000064B000-memory.dmp

                                                memory/5472-216-0x0000000000400000-0x000000000064B000-memory.dmp

                                                memory/5472-274-0x0000000000400000-0x000000000064B000-memory.dmp

                                                memory/6056-275-0x0000000008890000-0x0000000008EA8000-memory.dmp

                                                memory/6056-278-0x0000000008330000-0x000000000836C000-memory.dmp

                                                memory/6056-273-0x00000000051B0000-0x00000000051BA000-memory.dmp

                                                memory/6056-250-0x00000000056D0000-0x0000000005C74000-memory.dmp

                                                memory/6056-245-0x0000000000400000-0x000000000046C000-memory.dmp

                                                memory/6056-276-0x0000000008400000-0x000000000850A000-memory.dmp

                                                memory/6056-277-0x0000000008110000-0x0000000008122000-memory.dmp

                                                memory/6056-256-0x00000000051C0000-0x0000000005252000-memory.dmp

                                                memory/6056-279-0x0000000008370000-0x00000000083BC000-memory.dmp

                                                memory/6056-285-0x00000000090B0000-0x0000000009116000-memory.dmp

                                                memory/6056-286-0x00000000093E0000-0x0000000009456000-memory.dmp

                                                memory/6056-287-0x00000000093C0000-0x00000000093DE000-memory.dmp

                                                memory/6056-288-0x000000000A1B0000-0x000000000A372000-memory.dmp

                                                memory/6056-289-0x000000000A8B0000-0x000000000ADDC000-memory.dmp