Resubmissions

29/08/2021, 09:08

210829-kbvd4yh12j 10

29/08/2021, 09:00

210829-d9htsa2ade 10

Analysis

  • max time kernel
    132s
  • max time network
    159s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    29/08/2021, 09:00

General

  • Target

    bdf56d1d215d546e5add6dd065232224.exe

  • Size

    143KB

  • MD5

    bdf56d1d215d546e5add6dd065232224

  • SHA1

    07b2cc6992490266a7cce234e7a4e2efafc72bec

  • SHA256

    2bb5cb490caca6d8a0dc1bab96ce898765f1f88948a86cd777508319025e8950

  • SHA512

    2a7518c50d5884c8406d58e789457213c5e707279a7b6e2d7a42a9e7c8fbc3ed71ebcf796458efebacaea8d5bb56a3e4bef1c0379fb9a3dd85ea09bd27b95bf8

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://readinglistforaugust1.xyz/

http://readinglistforaugust2.xyz/

http://readinglistforaugust3.xyz/

http://readinglistforaugust4.xyz/

http://readinglistforaugust5.xyz/

http://readinglistforaugust6.xyz/

http://readinglistforaugust7.xyz/

http://readinglistforaugust8.xyz/

http://readinglistforaugust9.xyz/

http://readinglistforaugust10.xyz/

http://readinglistforaugust1.site/

http://readinglistforaugust2.site/

http://readinglistforaugust3.site/

http://readinglistforaugust4.site/

http://readinglistforaugust5.site/

http://readinglistforaugust6.site/

http://readinglistforaugust7.site/

http://readinglistforaugust8.site/

http://readinglistforaugust9.site/

http://readinglistforaugust10.site/

rc4.i32
rc4.i32

Extracted

Family

raccoon

Botnet

fe582536ec580228180f270f7cb80a867860e010

Attributes
  • url4cnc

    https://telete.in/xylichanjk

rc4.plain
rc4.plain

Extracted

Family

raccoon

Botnet

d02c5d65069fc7ce1993e7c52edf0c9c4c195c81

Attributes
  • url4cnc

    https://telete.in/open3entershift

rc4.plain
rc4.plain

Signatures

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • Windows security bypass 2 TTPs
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • XMRig Miner Payload 2 IoCs
  • Creates new service(s) 1 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 9 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Sets service image path in registry 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 2 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 24 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
  • Looks up external IP address via web service 1 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Launches sc.exe

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Interacts with shadow copies 2 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies data under HKEY_USERS 6 IoCs
  • Modifies system certificate store 2 TTPs 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bdf56d1d215d546e5add6dd065232224.exe
    "C:\Users\Admin\AppData\Local\Temp\bdf56d1d215d546e5add6dd065232224.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:756
    • C:\Users\Admin\AppData\Local\Temp\bdf56d1d215d546e5add6dd065232224.exe
      "C:\Users\Admin\AppData\Local\Temp\bdf56d1d215d546e5add6dd065232224.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1836
  • C:\Users\Admin\AppData\Local\Temp\3034.exe
    C:\Users\Admin\AppData\Local\Temp\3034.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:1432
  • C:\Users\Admin\AppData\Local\Temp\312F.exe
    C:\Users\Admin\AppData\Local\Temp\312F.exe
    1⤵
    • Executes dropped EXE
    • Modifies system certificate store
    PID:1336
  • C:\Users\Admin\AppData\Local\Temp\32D5.exe
    C:\Users\Admin\AppData\Local\Temp\32D5.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:608
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yqqbuqil\
      2⤵
        PID:1548
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gsnkrqqe.exe" C:\Windows\SysWOW64\yqqbuqil\
        2⤵
          PID:952
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create yqqbuqil binPath= "C:\Windows\SysWOW64\yqqbuqil\gsnkrqqe.exe /d\"C:\Users\Admin\AppData\Local\Temp\32D5.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:1556
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description yqqbuqil "wifi internet conection"
            2⤵
              PID:2000
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start yqqbuqil
              2⤵
                PID:1576
              • C:\Windows\SysWOW64\netsh.exe
                "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
                2⤵
                  PID:1744
              • C:\Windows\SysWOW64\yqqbuqil\gsnkrqqe.exe
                C:\Windows\SysWOW64\yqqbuqil\gsnkrqqe.exe /d"C:\Users\Admin\AppData\Local\Temp\32D5.exe"
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of WriteProcessMemory
                PID:752
                • C:\Windows\SysWOW64\svchost.exe
                  svchost.exe
                  2⤵
                  • Drops file in System32 directory
                  • Suspicious use of SetThreadContext
                  • Modifies data under HKEY_USERS
                  PID:1656
                  • C:\Windows\SysWOW64\svchost.exe
                    svchost.exe -o fastpool.xyz:10060 -u 9rLbTvsApFs3i3ojk5hDKicMNRQbxxFGwJA2hNC6NoZZDQN5tTFbhviFm4W3koxSrPg87Lnif7qxFYh9xpTJz1cT6B17Ph4.50000 -p x -k -a cn/half
                    3⤵
                    • Suspicious use of AdjustPrivilegeToken
                    PID:828
              • C:\Users\Admin\AppData\Local\Temp\455D.exe
                C:\Users\Admin\AppData\Local\Temp\455D.exe
                1⤵
                • Executes dropped EXE
                • Checks BIOS information in registry
                • Checks whether UAC is enabled
                • Suspicious use of NtSetInformationThreadHideFromDebugger
                • Suspicious use of AdjustPrivilegeToken
                PID:1264
              • C:\Users\Admin\AppData\Local\Temp\46B5.exe
                C:\Users\Admin\AppData\Local\Temp\46B5.exe
                1⤵
                • Executes dropped EXE
                • Loads dropped DLL
                • Adds Run key to start application
                • Modifies system certificate store
                • Suspicious use of AdjustPrivilegeToken
                PID:1816
                • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\explorer.exe
                  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\explorer.exe" -start
                  2⤵
                  • Executes dropped EXE
                  • Enumerates connected drives
                  • Modifies system certificate store
                  PID:1528
                  • C:\Windows\SysWOW64\cmd.exe
                    "C:\Windows\system32\cmd.exe" /C wmic shadowcopy delete
                    3⤵
                      PID:1708
                      • C:\Windows\SysWOW64\Wbem\WMIC.exe
                        wmic shadowcopy delete
                        4⤵
                          PID:568
                      • C:\Windows\SysWOW64\cmd.exe
                        "C:\Windows\system32\cmd.exe" /C bcdedit /set {default} recoveryenabled no
                        3⤵
                          PID:1168
                        • C:\Windows\SysWOW64\cmd.exe
                          "C:\Windows\system32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures
                          3⤵
                            PID:1892
                          • C:\Windows\SysWOW64\cmd.exe
                            "C:\Windows\system32\cmd.exe" /C wbadmin delete catalog -quiet
                            3⤵
                              PID:1628
                            • C:\Windows\SysWOW64\cmd.exe
                              "C:\Windows\system32\cmd.exe" /C vssadmin delete shadows /all /quiet
                              3⤵
                                PID:1696
                                • C:\Windows\SysWOW64\vssadmin.exe
                                  vssadmin delete shadows /all /quiet
                                  4⤵
                                  • Interacts with shadow copies
                                  PID:912
                              • C:\Windows\SysWOW64\cmd.exe
                                "C:\Windows\system32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\~temp001.bat
                                3⤵
                                  PID:1352
                                  • C:\Windows\SysWOW64\Wbem\WMIC.exe
                                    wmic shadowcopy delete
                                    4⤵
                                      PID:304
                                    • C:\Windows\SysWOW64\vssadmin.exe
                                      vssadmin delete shadows /all /quiet
                                      4⤵
                                      • Interacts with shadow copies
                                      PID:2252
                                  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\explorer.exe
                                    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\explorer.exe" -agent 0
                                    3⤵
                                    • Executes dropped EXE
                                    PID:756
                                • C:\Windows\SysWOW64\notepad.exe
                                  notepad.exe
                                  2⤵
                                    PID:1944
                                • C:\Users\Admin\AppData\Local\Temp\4916.exe
                                  C:\Users\Admin\AppData\Local\Temp\4916.exe
                                  1⤵
                                  • Executes dropped EXE
                                  PID:1272
                                • C:\Windows\SysWOW64\explorer.exe
                                  C:\Windows\SysWOW64\explorer.exe
                                  1⤵
                                    PID:1524
                                  • C:\Windows\explorer.exe
                                    C:\Windows\explorer.exe
                                    1⤵
                                      PID:1012
                                    • C:\Windows\SysWOW64\explorer.exe
                                      C:\Windows\SysWOW64\explorer.exe
                                      1⤵
                                        PID:1152
                                      • C:\Windows\explorer.exe
                                        C:\Windows\explorer.exe
                                        1⤵
                                          PID:1580
                                        • C:\Windows\SysWOW64\explorer.exe
                                          C:\Windows\SysWOW64\explorer.exe
                                          1⤵
                                            PID:1652
                                          • C:\Windows\explorer.exe
                                            C:\Windows\explorer.exe
                                            1⤵
                                              PID:360
                                            • C:\Windows\SysWOW64\explorer.exe
                                              C:\Windows\SysWOW64\explorer.exe
                                              1⤵
                                                PID:1316
                                              • C:\Windows\explorer.exe
                                                C:\Windows\explorer.exe
                                                1⤵
                                                  PID:1484
                                                • C:\Windows\SysWOW64\explorer.exe
                                                  C:\Windows\SysWOW64\explorer.exe
                                                  1⤵
                                                    PID:1524
                                                  • C:\Windows\system32\vssvc.exe
                                                    C:\Windows\system32\vssvc.exe
                                                    1⤵
                                                      PID:2068

                                                    Network

                                                    MITRE ATT&CK Enterprise v6

                                                    Replay Monitor

                                                    Loading Replay Monitor...

                                                    Downloads

                                                    • memory/360-130-0x0000000000060000-0x000000000006C000-memory.dmp

                                                      Filesize

                                                      48KB

                                                    • memory/360-129-0x0000000000070000-0x0000000000076000-memory.dmp

                                                      Filesize

                                                      24KB

                                                    • memory/608-79-0x0000000000400000-0x0000000001D73000-memory.dmp

                                                      Filesize

                                                      25.4MB

                                                    • memory/608-78-0x0000000000220000-0x0000000000233000-memory.dmp

                                                      Filesize

                                                      76KB

                                                    • memory/752-88-0x0000000000400000-0x0000000001D73000-memory.dmp

                                                      Filesize

                                                      25.4MB

                                                    • memory/756-63-0x0000000000220000-0x000000000022A000-memory.dmp

                                                      Filesize

                                                      40KB

                                                    • memory/828-162-0x0000000000210000-0x0000000000301000-memory.dmp

                                                      Filesize

                                                      964KB

                                                    • memory/1012-115-0x0000000000070000-0x0000000000077000-memory.dmp

                                                      Filesize

                                                      28KB

                                                    • memory/1012-116-0x0000000000060000-0x000000000006C000-memory.dmp

                                                      Filesize

                                                      48KB

                                                    • memory/1152-121-0x00000000000C0000-0x00000000000CB000-memory.dmp

                                                      Filesize

                                                      44KB

                                                    • memory/1152-120-0x00000000000D0000-0x00000000000D7000-memory.dmp

                                                      Filesize

                                                      28KB

                                                    • memory/1152-119-0x0000000074051000-0x0000000074053000-memory.dmp

                                                      Filesize

                                                      8KB

                                                    • memory/1208-64-0x0000000002AC0000-0x0000000002AD6000-memory.dmp

                                                      Filesize

                                                      88KB

                                                    • memory/1264-107-0x00000000056A0000-0x00000000056A1000-memory.dmp

                                                      Filesize

                                                      4KB

                                                    • memory/1264-102-0x00000000011A0000-0x00000000011A1000-memory.dmp

                                                      Filesize

                                                      4KB

                                                    • memory/1272-108-0x0000000000400000-0x0000000001DB7000-memory.dmp

                                                      Filesize

                                                      25.7MB

                                                    • memory/1272-106-0x00000000035E0000-0x000000000366F000-memory.dmp

                                                      Filesize

                                                      572KB

                                                    • memory/1316-138-0x0000000000090000-0x0000000000094000-memory.dmp

                                                      Filesize

                                                      16KB

                                                    • memory/1316-141-0x0000000000080000-0x0000000000089000-memory.dmp

                                                      Filesize

                                                      36KB

                                                    • memory/1336-77-0x0000000000400000-0x0000000001DB5000-memory.dmp

                                                      Filesize

                                                      25.7MB

                                                    • memory/1336-76-0x00000000002C0000-0x000000000034F000-memory.dmp

                                                      Filesize

                                                      572KB

                                                    • memory/1484-154-0x0000000000070000-0x0000000000075000-memory.dmp

                                                      Filesize

                                                      20KB

                                                    • memory/1484-155-0x0000000000060000-0x0000000000069000-memory.dmp

                                                      Filesize

                                                      36KB

                                                    • memory/1524-111-0x000000006E221000-0x000000006E223000-memory.dmp

                                                      Filesize

                                                      8KB

                                                    • memory/1524-112-0x00000000001D0000-0x0000000000244000-memory.dmp

                                                      Filesize

                                                      464KB

                                                    • memory/1524-160-0x0000000000090000-0x0000000000095000-memory.dmp

                                                      Filesize

                                                      20KB

                                                    • memory/1524-161-0x0000000000080000-0x0000000000089000-memory.dmp

                                                      Filesize

                                                      36KB

                                                    • memory/1524-113-0x00000000000C0000-0x000000000012B000-memory.dmp

                                                      Filesize

                                                      428KB

                                                    • memory/1580-124-0x0000000000060000-0x000000000006F000-memory.dmp

                                                      Filesize

                                                      60KB

                                                    • memory/1580-123-0x0000000000070000-0x0000000000079000-memory.dmp

                                                      Filesize

                                                      36KB

                                                    • memory/1652-127-0x0000000000080000-0x0000000000089000-memory.dmp

                                                      Filesize

                                                      36KB

                                                    • memory/1652-126-0x0000000000090000-0x0000000000095000-memory.dmp

                                                      Filesize

                                                      20KB

                                                    • memory/1656-89-0x0000000000080000-0x0000000000095000-memory.dmp

                                                      Filesize

                                                      84KB

                                                    • memory/1836-60-0x0000000000400000-0x0000000000409000-memory.dmp

                                                      Filesize

                                                      36KB

                                                    • memory/1836-62-0x00000000750C1000-0x00000000750C3000-memory.dmp

                                                      Filesize

                                                      8KB

                                                    • memory/1944-156-0x00000000000A0000-0x00000000000A1000-memory.dmp

                                                      Filesize

                                                      4KB