Analysis

  • max time kernel
    152s
  • max time network
    199s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    01/09/2021, 10:46

General

  • Target
    c1677042cb0c0ffce61c6c5d680db952.exe
  • Size 295KB
  • Sample210901-jaab51e52a
  • SHA256 4d7e732c1981cc7d29cb21e30ab8d203ccd45ae3ad7b609bfd50449c987b6bbc
  • MD5 SHA1 SHA512

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

Signatures

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

    suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

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

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

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 19 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 56 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c1677042cb0c0ffce61c6c5d680db952.exe
    "C:\Users\Admin\AppData\Local\Temp\c1677042cb0c0ffce61c6c5d680db952.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1668
    • C:\Users\Admin\AppData\Local\Temp\c1677042cb0c0ffce61c6c5d680db952.exe
      "C:\Users\Admin\AppData\Local\Temp\c1677042cb0c0ffce61c6c5d680db952.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1248
  • C:\Users\Admin\AppData\Local\Temp\E12B.exe
    C:\Users\Admin\AppData\Local\Temp\E12B.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:1476
  • C:\Users\Admin\AppData\Local\Temp\E264.exe
    C:\Users\Admin\AppData\Local\Temp\E264.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Modifies system certificate store
    PID:1460
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
      PID:828
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe
      1⤵
        PID:280
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        1⤵
          PID:596
        • C:\Windows\explorer.exe
          C:\Windows\explorer.exe
          1⤵
            PID:1072
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            1⤵
              PID:1232
            • C:\Windows\explorer.exe
              C:\Windows\explorer.exe
              1⤵
                PID:1580
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:1488
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe
                  1⤵
                    PID:1648
                  • 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/280-81-0x0000000000060000-0x000000000006C000-memory.dmp

                          memory/280-80-0x0000000000070000-0x0000000000077000-memory.dmp

                          memory/596-86-0x0000000000080000-0x000000000008B000-memory.dmp

                          memory/596-85-0x0000000000090000-0x0000000000097000-memory.dmp

                          memory/596-84-0x0000000074C01000-0x0000000074C03000-memory.dmp

                          memory/828-74-0x0000000075241000-0x0000000075243000-memory.dmp

                          memory/828-77-0x00000000000C0000-0x000000000012B000-memory.dmp

                          memory/828-76-0x0000000000130000-0x00000000001A4000-memory.dmp

                          memory/1072-88-0x00000000000F0000-0x00000000000F9000-memory.dmp

                          memory/1072-89-0x0000000000060000-0x000000000006F000-memory.dmp

                          memory/1232-94-0x0000000000080000-0x0000000000089000-memory.dmp

                          memory/1232-93-0x0000000000090000-0x0000000000095000-memory.dmp

                          memory/1248-62-0x00000000767B1000-0x00000000767B3000-memory.dmp

                          memory/1248-60-0x0000000000400000-0x0000000000409000-memory.dmp

                          memory/1292-64-0x00000000027A0000-0x00000000027B6000-memory.dmp

                          memory/1460-78-0x0000000000400000-0x00000000021AE000-memory.dmp

                          memory/1460-75-0x0000000000310000-0x000000000039F000-memory.dmp

                          memory/1488-101-0x0000000000090000-0x0000000000094000-memory.dmp

                          memory/1488-102-0x0000000000080000-0x0000000000089000-memory.dmp

                          memory/1580-97-0x0000000000060000-0x000000000006C000-memory.dmp

                          memory/1580-96-0x0000000000070000-0x0000000000076000-memory.dmp

                          memory/1648-105-0x0000000000060000-0x0000000000069000-memory.dmp

                          memory/1648-104-0x0000000000070000-0x0000000000075000-memory.dmp

                          memory/1668-63-0x0000000000220000-0x000000000022A000-memory.dmp

                          memory/2008-111-0x0000000000080000-0x0000000000089000-memory.dmp

                          memory/2008-110-0x0000000000090000-0x0000000000095000-memory.dmp