Overview

overview

10

Static

static

10

ClientH.exe

windows7-x64

10

ClientH.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-07-2023 00:03

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General

  • Target

    ClientH.exe

  • Size

    90KB

  • MD5

    5558467d200c00a5acab51d4a9ca98dd

  • SHA1

    f9d50c3556451b056deb0950b6bdd4c3ecbb570f

  • SHA256

    213452a323be1617cfa62abeae43d873bec1e5c740aa2177e157a9772a92f231

  • SHA512

    80167cbf7301726ef6a1fd8f2c91db4076f5f5c869338953b1dacc88bf7f82e7caadabbbf32ecda3327c1be4c9da2477a198123a9ac1acf114f03c64bada3921

  • SSDEEP

    1536:ebRiQMhQ57SK3bUzZdQ1iIMvnZlbLxjV3AGq5gWlocT1wzySsd9NJ33p:ebRF57SKsstcnZTJQDgWPaySsdH5Z

Score
10/10
arrowratvenomhvncpersistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

VenomHVNC

C2

185.183.35.122:4448

Mutex

GHAEYKXuf.exe

Signatures

  • ArrowRat

    Remote access tool with various capabilities first seen in late 2021.

    ratarrowrat
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 5 IoCs
  • Checks SCSI registry key(s) 3 TTPs 22 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 10 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of FindShellTrayWindow 50 IoCs
  • Suspicious use of SendNotifyMessage 22 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ClientH.exe
    "C:\Users\Admin\AppData\Local\Temp\ClientH.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2592
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      2⤵
      • Modifies Installed Components in the registry
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:728
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" VenomHVNC 185.183.35.122 4448 GHAEYKXuf.exe
      2⤵
        PID:1132
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Suspicious use of SetWindowsHookEx
      PID:468
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:3412
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 3412 -s 3920
        2⤵
        • Program crash
        PID:1100
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 408 -p 3412 -ip 3412
      1⤵
        PID:2440
      • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
        "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
        1⤵
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:3488
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 3488 -s 4008
          2⤵
          • Program crash
          PID:3784
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -pss -s 404 -p 3488 -ip 3488
        1⤵
          PID:3492
        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
          1⤵
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:3332
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -u -p 3332 -s 3544
            2⤵
            • Program crash
            PID:4416
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -pss -s 404 -p 3332 -ip 3332
          1⤵
            PID:4628
          • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
            "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
            1⤵
            • Modifies Internet Explorer settings
            • Modifies registry class
            • Suspicious use of SetWindowsHookEx
            PID:4188
            • C:\Windows\system32\WerFault.exe
              C:\Windows\system32\WerFault.exe -u -p 4188 -s 3568
              2⤵
              • Program crash
              PID:4920
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -pss -s 492 -p 4188 -ip 4188
            1⤵
              PID:2224
            • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
              "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
              1⤵
              • Modifies Internet Explorer settings
              • Modifies registry class
              • Suspicious use of SetWindowsHookEx
              PID:1100
              • C:\Windows\system32\WerFault.exe
                C:\Windows\system32\WerFault.exe -u -p 1100 -s 3528
                2⤵
                • Program crash
                PID:260
            • C:\Windows\system32\WerFault.exe
              C:\Windows\system32\WerFault.exe -pss -s 184 -p 1100 -ip 1100
              1⤵
                PID:1412
              • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                1⤵
                  PID:3912

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\Microsoft\Internet Explorer\DOMStore\CAAHQQ1W\microsoft.windows[1].xml
                  Filesize

                  96B

                  MD5

                  6424805af3b71a828b3134d791979bbd

                  SHA1

                  62368d1bd11c73e236dc3888b14b359b7260af6f

                  SHA256

                  598e353da6c20a1ed5831bb4f929a414cbaf73d8fefde29ed99819faa35e7595

                  SHA512

                  784d9494fd7e5c70f5b4f2e8b2b736ab55b94b7df0be741c003ee79875aa50bc9ce1275cc51ac358e9947cdc17c71d794faab152d2ebe4d357dd8aa9d2114a30

                  Download Submit

                • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\AppIconCache\100\Microsoft_AutoGenerated_{0A6AC72E-ED8C-C16F-38B6-05831557CF24}
                  Filesize

                  36KB

                  MD5

                  8aaad0f4eb7d3c65f81c6e6b496ba889

                  SHA1

                  231237a501b9433c292991e4ec200b25c1589050

                  SHA256

                  813c66ce7dec4cff9c55fb6f809eab909421e37f69ff30e4acaa502365a32bd1

                  SHA512

                  1a83ce732dc47853bf6e8f4249054f41b0dea8505cda73433b37dfa16114f27bfed3b4b3ba580aa9d53c3dcc8d48bf571a45f7c0468e6a0f2a227a7e59e17d62

                  Download Submit

                • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\AppIconCache\100\{1AC14E77-02E7-4E5D-B744-2EB1AE5198B7}_WindowsPowerShell_v1_0_PowerShell_ISE_exe
                  Filesize

                  36KB

                  MD5

                  3ccc6610ecf9eb036fc50fda1f781d21

                  SHA1

                  de7db115b3bd1b926ae0b2a795e7d0feac621851

                  SHA256

                  2192613bbcf96dd824a813b59c598c486ea713a05c82fb1184eb955bc3b84839

                  SHA512

                  aa3a6d68415fc17695a8dc35271617834a84b3485af974cf34f2ff2a065ab6217db4a19e08abd22330dea9d9a44963e0aa70feda061db2ca6c0c29b2f4c6ca42

                  Download Submit

                • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133350626627050886.txt
                  Filesize

                  75KB

                  MD5

                  22f39923e2942e5a02c3a5f91cefd45b

                  SHA1

                  c33909cb5ae1ad55b18b38b6aedf79c5a2216e13

                  SHA256

                  66457d8ac009ef25f44e676156bc058db582b2a3b431e2589435bb27477328c6

                  SHA512

                  17a2afe32e74150e58080055f3e67d3d4892828d9df28905a0e67227055b61eeab2a4764acf0b701bc481568fac2ccb889b326379319723fae838f8ce09e94fd

                  Download Submit

                • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133350626627050886.txt
                  Filesize

                  75KB

                  MD5

                  22f39923e2942e5a02c3a5f91cefd45b

                  SHA1

                  c33909cb5ae1ad55b18b38b6aedf79c5a2216e13

                  SHA256

                  66457d8ac009ef25f44e676156bc058db582b2a3b431e2589435bb27477328c6

                  SHA512

                  17a2afe32e74150e58080055f3e67d3d4892828d9df28905a0e67227055b61eeab2a4764acf0b701bc481568fac2ccb889b326379319723fae838f8ce09e94fd

                  Download Submit

                • C:\Users\Admin\AppData\Local\Packages\microsoft.windows.search_cw5n1h2txyewy\AC\Microsoft\Internet Explorer\DOMStore\CAAHQQ1W\microsoft.windows[1].xml
                  Filesize

                  96B

                  MD5

                  6424805af3b71a828b3134d791979bbd

                  SHA1

                  62368d1bd11c73e236dc3888b14b359b7260af6f

                  SHA256

                  598e353da6c20a1ed5831bb4f929a414cbaf73d8fefde29ed99819faa35e7595

                  SHA512

                  784d9494fd7e5c70f5b4f2e8b2b736ab55b94b7df0be741c003ee79875aa50bc9ce1275cc51ac358e9947cdc17c71d794faab152d2ebe4d357dd8aa9d2114a30

                  Download Submit

                • C:\Users\Admin\AppData\Local\Packages\microsoft.windows.search_cw5n1h2txyewy\AC\Microsoft\Internet Explorer\DOMStore\CAAHQQ1W\microsoft.windows[1].xml
                  Filesize

                  96B

                  MD5

                  6424805af3b71a828b3134d791979bbd

                  SHA1

                  62368d1bd11c73e236dc3888b14b359b7260af6f

                  SHA256

                  598e353da6c20a1ed5831bb4f929a414cbaf73d8fefde29ed99819faa35e7595

                  SHA512

                  784d9494fd7e5c70f5b4f2e8b2b736ab55b94b7df0be741c003ee79875aa50bc9ce1275cc51ac358e9947cdc17c71d794faab152d2ebe4d357dd8aa9d2114a30

                  Download Submit

                • C:\Users\Admin\AppData\Local\Packages\microsoft.windows.search_cw5n1h2txyewy\AC\Microsoft\Internet Explorer\DOMStore\CAAHQQ1W\microsoft.windows[1].xml
                  Filesize

                  96B

                  MD5

                  6424805af3b71a828b3134d791979bbd

                  SHA1

                  62368d1bd11c73e236dc3888b14b359b7260af6f

                  SHA256

                  598e353da6c20a1ed5831bb4f929a414cbaf73d8fefde29ed99819faa35e7595

                  SHA512

                  784d9494fd7e5c70f5b4f2e8b2b736ab55b94b7df0be741c003ee79875aa50bc9ce1275cc51ac358e9947cdc17c71d794faab152d2ebe4d357dd8aa9d2114a30

                  Download Submit

                • C:\Users\Admin\AppData\Local\Packages\microsoft.windows.search_cw5n1h2txyewy\AC\Microsoft\Internet Explorer\DOMStore\CAAHQQ1W\microsoft.windows[1].xml
                  Filesize

                  96B

                  MD5

                  6424805af3b71a828b3134d791979bbd

                  SHA1

                  62368d1bd11c73e236dc3888b14b359b7260af6f

                  SHA256

                  598e353da6c20a1ed5831bb4f929a414cbaf73d8fefde29ed99819faa35e7595

                  SHA512

                  784d9494fd7e5c70f5b4f2e8b2b736ab55b94b7df0be741c003ee79875aa50bc9ce1275cc51ac358e9947cdc17c71d794faab152d2ebe4d357dd8aa9d2114a30

                  Download Submit

                • memory/728-145-0x0000000000AB0000-0x0000000000AB1000-memory.dmp

                  Filesize

                  4KB

                  Download

                • memory/1100-259-0x000001BED9A00000-0x000001BED9A20000-memory.dmp

                  Filesize

                  128KB

                  Download

                • memory/1100-256-0x000001BED9560000-0x000001BED9580000-memory.dmp

                  Filesize

                  128KB

                  Download

                • memory/1100-253-0x000001BED95A0000-0x000001BED95C0000-memory.dmp

                  Filesize

                  128KB

                  Download

                • memory/1132-142-0x00000000050C0000-0x0000000005152000-memory.dmp

                  Filesize

                  584KB

                  Download

                • memory/1132-143-0x0000000005320000-0x0000000005330000-memory.dmp

                  Filesize

                  64KB

                  Download

                • memory/1132-165-0x0000000074C20000-0x00000000753D0000-memory.dmp

                  Filesize

                  7.7MB

                  Download

                • memory/1132-137-0x0000000000400000-0x0000000000410000-memory.dmp

                  Filesize

                  64KB

                  Download

                • memory/1132-141-0x0000000074C20000-0x00000000753D0000-memory.dmp

                  Filesize

                  7.7MB

                  Download

                • memory/1132-166-0x0000000005320000-0x0000000005330000-memory.dmp

                  Filesize

                  64KB

                  Download

                • memory/2592-133-0x0000000074C20000-0x00000000753D0000-memory.dmp

                  Filesize

                  7.7MB

                  Download

                • memory/2592-140-0x0000000074C20000-0x00000000753D0000-memory.dmp

                  Filesize

                  7.7MB

                  Download

                • memory/2592-136-0x0000000004F90000-0x000000000502C000-memory.dmp

                  Filesize

                  624KB

                  Download

                • memory/2592-135-0x00000000053A0000-0x0000000005944000-memory.dmp

                  Filesize

                  5.6MB

                  Download

                • memory/2592-134-0x0000000000490000-0x00000000004AC000-memory.dmp

                  Filesize

                  112KB

                  Download

                • memory/3332-211-0x00000204E1C40000-0x00000204E1C60000-memory.dmp

                  Filesize

                  128KB

                  Download

                • memory/3332-215-0x00000204E1C00000-0x00000204E1C20000-memory.dmp

                  Filesize

                  128KB

                  Download

                • memory/3332-218-0x00000204E2010000-0x00000204E2030000-memory.dmp

                  Filesize

                  128KB

                  Download

                • memory/3412-151-0x00000155473B0000-0x00000155473D0000-memory.dmp

                  Filesize

                  128KB

                  Download

                • memory/3412-154-0x0000015547370000-0x0000015547390000-memory.dmp

                  Filesize

                  128KB

                  Download

                • memory/3412-156-0x00000155479C0000-0x00000155479E0000-memory.dmp

                  Filesize

                  128KB

                  Download

                • memory/3488-192-0x000002CD4E520000-0x000002CD4E540000-memory.dmp

                  Filesize

                  128KB

                  Download

                • memory/3488-196-0x000002CD4EB20000-0x000002CD4EB40000-memory.dmp

                  Filesize

                  128KB

                  Download

                • memory/3488-179-0x000002CD4E560000-0x000002CD4E580000-memory.dmp

                  Filesize

                  128KB

                  Download

                • memory/4188-239-0x000001EE603E0000-0x000001EE60400000-memory.dmp

                  Filesize

                  128KB

                  Download

                • memory/4188-236-0x000001EE5FDD0000-0x000001EE5FDF0000-memory.dmp

                  Filesize

                  128KB

                  Download

                • memory/4188-232-0x000001EE60020000-0x000001EE60040000-memory.dmp

                  Filesize

                  128KB

                  Download