Analysis

  • max time kernel
    130s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-05-2024 09:41

General

  • Target

    bc083bddb24c32348299581c1d1051299dca6121ff44fc307baa59e2efe2d37c.exe

  • Size

    231KB

  • MD5

    16c5ee40d5590e349c3a609ea831e6ae

  • SHA1

    71593a26dd56882b9af5a54c6194b8ef44e29f72

  • SHA256

    bc083bddb24c32348299581c1d1051299dca6121ff44fc307baa59e2efe2d37c

  • SHA512

    3251a3e677109c25cb4e02cf72406a78b43410a7b77645c17c0cc2297b51db6e03670f98818d50ba9839096d233b2dbf5929dc68a94e9cc07f9c9c152e42362f

  • SSDEEP

    3072:Wf/uT4vAYlhgpzygcW+qmiHyzRfujGx372IqJi7PXP398Ol:+pGtcWiVpQIb7PuO

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2022

C2

http://trad-einmyus.com/index.php

http://tradein-myus.com/index.php

http://trade-inmyus.com/index.php

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 39 IoCs

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

  • Modifies registry class 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of FindShellTrayWindow 8 IoCs
  • Suspicious use of SendNotifyMessage 10 IoCs
  • Suspicious use of WriteProcessMemory 8 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\bc083bddb24c32348299581c1d1051299dca6121ff44fc307baa59e2efe2d37c.exe
    "C:\Users\Admin\AppData\Local\Temp\bc083bddb24c32348299581c1d1051299dca6121ff44fc307baa59e2efe2d37c.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:824
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\6608.bat" "
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4112
    • C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
      2⤵
        PID:1256
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\76A3.bat" "
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1204
      • C:\Windows\system32\reg.exe
        reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
        2⤵
          PID:1232
      • 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=4104 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:4876
        • C:\Windows\explorer.exe
          explorer.exe
          1⤵
          • 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:5112
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
            PID:3300
          • C:\Windows\explorer.exe
            explorer.exe
            1⤵
              PID:1920
            • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
              "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
              1⤵
                PID:2920
              • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                1⤵
                  PID:3604
                • C:\Windows\explorer.exe
                  explorer.exe
                  1⤵
                    PID:4092
                  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                    1⤵
                      PID:5044
                    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                      1⤵
                        PID:4776

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\80237EE4964FC9C409AAF55BF996A292_D46D6FA25B74360E1349F9015B5CCE53

                        Filesize

                        471B

                        MD5

                        8c5c6aee047c92e85a3d052e7cdbd790

                        SHA1

                        d4e95d361b13813a9932207f6c14e0ff053a9602

                        SHA256

                        ed30ccbd46a70c2633869dc0fe9bdb88c9d66326e62abb6c60d8938d2a83d72a

                        SHA512

                        2cc1d83a4fc1a4204e7b7ab6ebe51f04251c3b9941c8d8d8330e57d6c612413bd3399eecff2d7305a0e4dedeef6d514b6d97626fef4fb0320830ba2586fa530e

                      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\80237EE4964FC9C409AAF55BF996A292_D46D6FA25B74360E1349F9015B5CCE53

                        Filesize

                        412B

                        MD5

                        eb3b70de3e5d96594f77cf03a924a299

                        SHA1

                        2434468716bf445d38f616ca055f17c8df9f6b70

                        SHA256

                        423baefc5623e8c118eca6bb9437b01ce8dd46299c47218ebcc1be815b70f94f

                        SHA512

                        dc5c7329a41941c59fd32a2301252104f5f4843ce64645e6a4f5bc4765eee34179e0046b7cbd3ad186ceef7ef12960113641ba64aa3a4b21f48194ad52c9819d

                      • C:\Users\Admin\AppData\Local\Packages\microsoft.windows.search_cw5n1h2txyewy\AC\Microsoft\Internet Explorer\DOMStore\5MIHM5LV\microsoft.windows[1].xml

                        Filesize

                        96B

                        MD5

                        84209e171da10686915fe7efcd51552d

                        SHA1

                        6bf96e86a533a68eba4d703833de374e18ce6113

                        SHA256

                        04d6050009ea3c99cc718ad1c07c5d15268b459fcfb63fcb990bc9761738907b

                        SHA512

                        48d2524000911cfb68ef866dedac78ee430d79aa3f4b68399f645dc2066841e6962e11a3362cbcec46680357dcd3e58cfef9994450fed1d8af04df44f76b0dfd

                      • C:\Users\Admin\AppData\Local\Temp\6608.bat

                        Filesize

                        77B

                        MD5

                        55cc761bf3429324e5a0095cab002113

                        SHA1

                        2cc1ef4542a4e92d4158ab3978425d517fafd16d

                        SHA256

                        d6cceb3c71b80403364bf142f2fa4624ee0be36a49bac25ed45a497cf1ce9c3a

                        SHA512

                        33f9f5cad22d291077787c7df510806e4ac31f453d288712595af6debe579fabed6cdf4662e46e6fa94de135b161e739f55cfae05c36c87af85ed6a6ad1c9155

                      • memory/824-2-0x0000000000810000-0x000000000081B000-memory.dmp

                        Filesize

                        44KB

                      • memory/824-3-0x0000000000400000-0x000000000040B000-memory.dmp

                        Filesize

                        44KB

                      • memory/824-4-0x0000000000400000-0x0000000000790000-memory.dmp

                        Filesize

                        3.6MB

                      • memory/824-10-0x0000000000400000-0x000000000040B000-memory.dmp

                        Filesize

                        44KB

                      • memory/824-9-0x0000000000810000-0x000000000081B000-memory.dmp

                        Filesize

                        44KB

                      • memory/824-6-0x0000000000400000-0x0000000000790000-memory.dmp

                        Filesize

                        3.6MB

                      • memory/824-1-0x0000000000980000-0x0000000000A80000-memory.dmp

                        Filesize

                        1024KB

                      • memory/1920-33-0x0000000004D30000-0x0000000004D31000-memory.dmp

                        Filesize

                        4KB

                      • memory/3188-23-0x0000000002DB0000-0x0000000002DB1000-memory.dmp

                        Filesize

                        4KB

                      • memory/3188-5-0x0000000002DE0000-0x0000000002DF6000-memory.dmp

                        Filesize

                        88KB

                      • memory/3604-40-0x0000015DB32D0000-0x0000015DB32F0000-memory.dmp

                        Filesize

                        128KB

                      • memory/3604-35-0x0000015DB2370000-0x0000015DB2470000-memory.dmp

                        Filesize

                        1024KB

                      • memory/3604-54-0x0000015DB3290000-0x0000015DB32B0000-memory.dmp

                        Filesize

                        128KB

                      • memory/3604-71-0x0000015DB3930000-0x0000015DB3950000-memory.dmp

                        Filesize

                        128KB

                      • memory/3604-36-0x0000015DB2370000-0x0000015DB2470000-memory.dmp

                        Filesize

                        1024KB

                      • memory/4092-189-0x0000000004890000-0x0000000004891000-memory.dmp

                        Filesize

                        4KB

                      • memory/4776-192-0x000002596C810000-0x000002596C910000-memory.dmp

                        Filesize

                        1024KB

                      • memory/4776-190-0x000002596C810000-0x000002596C910000-memory.dmp

                        Filesize

                        1024KB

                      • memory/4776-195-0x000002616E970000-0x000002616E990000-memory.dmp

                        Filesize

                        128KB

                      • memory/4776-224-0x000002616E930000-0x000002616E950000-memory.dmp

                        Filesize

                        128KB

                      • memory/4776-227-0x000002616ED40000-0x000002616ED60000-memory.dmp

                        Filesize

                        128KB