Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    06/01/2022, 20:01

General

  • Target
    23dfe6757086dde5e8463811731f60c6.exe
  • Size 299KB
  • Sample220106-yrlxeacaap
  • SHA256 6c02cd3294f998736222c255ddd163b9d5e72dfbf3492bfdd43519a46ed609de
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://host-data-coin-11.com/

  • http://file-coin-host-12.com/

  • http://srtuiyhuali.at/

  • http://fufuiloirtu.com/

  • http://amogohuigotuli.at/

  • http://novohudosovu.com/

  • http://brutuilionust.com/

  • http://bubushkalioua.com/

  • http://dumuilistrati.at/

  • http://verboliatsiaeeees.com/

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family
  • tofsee

C2
  • patmushta.info

  • parubey.info

Extracted

Family
  • raccoon

Botnet
  • 10da56e7e71e97bdc1f36eb76813bbc3231de7e4

Attributes
  • url4cnc

    http://194.180.174.53/capibar

    http://91.219.236.18/capibar

    http://194.180.174.41/capibar

    http://91.219.236.148/capibar

    https://t.me/capibar

rc4.plain
rc4.plain

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • 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
  • suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

    suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

  • suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

    suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

  • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

  • xmrig

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

  • Arkei Stealer Payload 3 IoCs
  • XMRig Miner Payload 2 IoCs
  • Creates new service(s) 1 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 12 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Sets service image path in registry 2 TTPs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 12 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 5 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 9 IoCs

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

  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Delays execution with timeout.exe 2 IoCs
  • Modifies data under HKEY_USERS 12 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\23dfe6757086dde5e8463811731f60c6.exe
    "C:\Users\Admin\AppData\Local\Temp\23dfe6757086dde5e8463811731f60c6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1928
    • C:\Users\Admin\AppData\Local\Temp\23dfe6757086dde5e8463811731f60c6.exe
      "C:\Users\Admin\AppData\Local\Temp\23dfe6757086dde5e8463811731f60c6.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1136
  • C:\Users\Admin\AppData\Local\Temp\3B4C.exe
    C:\Users\Admin\AppData\Local\Temp\3B4C.exe
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:516
  • C:\Users\Admin\AppData\Local\Temp\4FBB.exe
    C:\Users\Admin\AppData\Local\Temp\4FBB.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:596
    • C:\Users\Admin\AppData\Local\Temp\4FBB.exe
      C:\Users\Admin\AppData\Local\Temp\4FBB.exe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:1828
  • C:\Users\Admin\AppData\Local\Temp\6667.exe
    C:\Users\Admin\AppData\Local\Temp\6667.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    PID:1076
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\6667.exe" & exit
      2⤵
        PID:1668
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 5
          3⤵
          • Delays execution with timeout.exe
          PID:1952
    • C:\Users\Admin\AppData\Local\Temp\7269.exe
      C:\Users\Admin\AppData\Local\Temp\7269.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1692
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\iwmhuik\
        2⤵
          PID:1840
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kvwobzrc.exe" C:\Windows\SysWOW64\iwmhuik\
          2⤵
            PID:676
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" create iwmhuik binPath= "C:\Windows\SysWOW64\iwmhuik\kvwobzrc.exe /d\"C:\Users\Admin\AppData\Local\Temp\7269.exe\"" type= own start= auto DisplayName= "wifi support"
            2⤵
              PID:1748
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" description iwmhuik "wifi internet conection"
              2⤵
                PID:1288
              • C:\Windows\SysWOW64\sc.exe
                "C:\Windows\System32\sc.exe" start iwmhuik
                2⤵
                  PID:888
                • 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:1708
                • C:\Users\Admin\AppData\Local\Temp\7B31.exe
                  C:\Users\Admin\AppData\Local\Temp\7B31.exe
                  1⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  • Suspicious use of SetThreadContext
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1176
                  • C:\Users\Admin\AppData\Local\Temp\7B31.exe
                    C:\Users\Admin\AppData\Local\Temp\7B31.exe
                    2⤵
                    • Executes dropped EXE
                    • Suspicious use of AdjustPrivilegeToken
                    PID:1764
                • C:\Windows\SysWOW64\iwmhuik\kvwobzrc.exe
                  C:\Windows\SysWOW64\iwmhuik\kvwobzrc.exe /d"C:\Users\Admin\AppData\Local\Temp\7269.exe"
                  1⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  • Suspicious use of WriteProcessMemory
                  PID:1640
                  • C:\Windows\SysWOW64\svchost.exe
                    svchost.exe
                    2⤵
                    • Drops file in System32 directory
                    • Suspicious use of SetThreadContext
                    • Modifies data under HKEY_USERS
                    PID:656
                    • 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:832
                • C:\Users\Admin\AppData\Local\Temp\E49E.exe
                  C:\Users\Admin\AppData\Local\Temp\E49E.exe
                  1⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  • Suspicious use of NtSetInformationThreadHideFromDebugger
                  • Checks processor information in registry
                  PID:1584
                  • C:\Windows\SysWOW64\cmd.exe
                    "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\E49E.exe" & exit
                    2⤵
                      PID:960
                      • C:\Windows\SysWOW64\timeout.exe
                        timeout /t 5
                        3⤵
                        • Delays execution with timeout.exe
                        PID:1084
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                    • Accesses Microsoft Outlook profiles
                    • outlook_office_path
                    • outlook_win_path
                    PID:964
                  • C:\Windows\explorer.exe
                    C:\Windows\explorer.exe
                    1⤵
                      PID:1748
                    • C:\Users\Admin\AppData\Local\Temp\F947.exe
                      C:\Users\Admin\AppData\Local\Temp\F947.exe
                      1⤵
                      • Executes dropped EXE
                      PID:1708
                    • C:\Users\Admin\AppData\Local\Temp\2DA5.exe
                      C:\Users\Admin\AppData\Local\Temp\2DA5.exe
                      1⤵
                      • Executes dropped EXE
                      PID:676
                    • C:\Users\Admin\AppData\Local\Temp\3A81.exe
                      C:\Users\Admin\AppData\Local\Temp\3A81.exe
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of NtSetInformationThreadHideFromDebugger
                      • Suspicious use of AdjustPrivilegeToken
                      PID:1252

                    Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          memory/516-65-0x0000000000020000-0x0000000000029000-memory.dmp

                          memory/516-66-0x0000000000400000-0x000000000046D000-memory.dmp

                          memory/516-63-0x000000000055A000-0x000000000056A000-memory.dmp

                          memory/596-69-0x0000000000308000-0x0000000000318000-memory.dmp

                          memory/656-108-0x0000000000080000-0x0000000000095000-memory.dmp

                          memory/656-107-0x0000000000080000-0x0000000000095000-memory.dmp

                          memory/676-171-0x0000000000290000-0x00000000002F0000-memory.dmp

                          memory/832-186-0x0000000000180000-0x0000000000271000-memory.dmp

                          memory/832-185-0x0000000000180000-0x0000000000271000-memory.dmp

                          memory/964-147-0x00000000004D0000-0x0000000000544000-memory.dmp

                          memory/964-146-0x0000000074D91000-0x0000000074D93000-memory.dmp

                          memory/964-148-0x0000000000120000-0x000000000018B000-memory.dmp

                          memory/1076-80-0x00000000005D8000-0x00000000005E9000-memory.dmp

                          memory/1076-82-0x0000000000400000-0x0000000000462000-memory.dmp

                          memory/1076-81-0x0000000000020000-0x000000000003C000-memory.dmp

                          memory/1136-56-0x0000000000400000-0x0000000000409000-memory.dmp

                          memory/1136-58-0x0000000076511000-0x0000000076513000-memory.dmp

                          memory/1176-103-0x0000000000360000-0x0000000000361000-memory.dmp

                          memory/1176-96-0x0000000000FC0000-0x000000000104A000-memory.dmp

                          memory/1176-97-0x0000000000FC0000-0x000000000104A000-memory.dmp

                          memory/1176-102-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

                          memory/1252-184-0x0000000075CF0000-0x0000000075D47000-memory.dmp

                          memory/1252-176-0x00000000751E0000-0x000000007522A000-memory.dmp

                          memory/1252-208-0x00000000717E0000-0x00000000717F7000-memory.dmp

                          memory/1252-177-0x0000000001150000-0x00000000011E0000-memory.dmp

                          memory/1252-207-0x000000006F4D0000-0x000000006F660000-memory.dmp

                          memory/1252-206-0x0000000075E70000-0x0000000075EA5000-memory.dmp

                          memory/1252-179-0x0000000001150000-0x00000000011E0000-memory.dmp

                          memory/1252-178-0x00000000000F0000-0x00000000000F1000-memory.dmp

                          memory/1252-182-0x00000000003B0000-0x00000000003F5000-memory.dmp

                          memory/1252-181-0x0000000077370000-0x000000007741C000-memory.dmp

                          memory/1252-194-0x0000000001150000-0x00000000011E0000-memory.dmp

                          memory/1252-195-0x0000000001150000-0x00000000011E0000-memory.dmp

                          memory/1252-198-0x0000000076510000-0x000000007715A000-memory.dmp

                          memory/1252-205-0x0000000074F40000-0x0000000074F57000-memory.dmp

                          memory/1252-183-0x0000000075980000-0x00000000759C7000-memory.dmp

                          memory/1252-189-0x0000000077420000-0x000000007757C000-memory.dmp

                          memory/1252-199-0x0000000004C00000-0x0000000004C01000-memory.dmp

                          memory/1252-197-0x0000000074690000-0x0000000074710000-memory.dmp

                          memory/1252-196-0x0000000077620000-0x00000000776AF000-memory.dmp

                          memory/1356-60-0x0000000002700000-0x0000000002716000-memory.dmp

                          memory/1356-79-0x0000000003F80000-0x0000000003F96000-memory.dmp

                          memory/1356-76-0x0000000003CB0000-0x0000000003CC6000-memory.dmp

                          memory/1584-137-0x0000000000240000-0x00000000002F6000-memory.dmp

                          memory/1584-135-0x0000000000240000-0x00000000002F6000-memory.dmp

                          memory/1584-140-0x0000000077370000-0x000000007741C000-memory.dmp

                          memory/1584-138-0x0000000000130000-0x0000000000131000-memory.dmp

                          memory/1584-139-0x0000000075980000-0x00000000759C7000-memory.dmp

                          memory/1584-136-0x0000000000150000-0x0000000000196000-memory.dmp

                          memory/1640-111-0x0000000000400000-0x0000000000461000-memory.dmp

                          memory/1640-105-0x0000000000588000-0x0000000000599000-memory.dmp

                          memory/1692-89-0x0000000000400000-0x0000000000461000-memory.dmp

                          memory/1692-88-0x0000000000020000-0x0000000000033000-memory.dmp

                          memory/1692-85-0x00000000005A8000-0x00000000005B9000-memory.dmp

                          memory/1708-165-0x00000000002DE000-0x000000000033B000-memory.dmp

                          memory/1708-200-0x0000000000400000-0x0000000000885000-memory.dmp

                          memory/1708-204-0x0000000000400000-0x0000000000885000-memory.dmp

                          memory/1708-202-0x0000000000890000-0x00000000008E0000-memory.dmp

                          memory/1708-166-0x0000000000400000-0x0000000000885000-memory.dmp

                          memory/1708-167-0x0000000002130000-0x00000000021C5000-memory.dmp

                          memory/1708-203-0x0000000002220000-0x00000000022B2000-memory.dmp

                          memory/1708-168-0x0000000000400000-0x0000000000885000-memory.dmp

                          memory/1708-154-0x000000000026A000-0x00000000002DD000-memory.dmp

                          memory/1708-155-0x0000000000970000-0x0000000000A07000-memory.dmp

                          memory/1708-156-0x0000000000400000-0x0000000000885000-memory.dmp

                          memory/1748-151-0x0000000000060000-0x000000000006C000-memory.dmp

                          memory/1748-150-0x0000000000070000-0x0000000000077000-memory.dmp

                          memory/1764-119-0x0000000000400000-0x0000000000420000-memory.dmp

                          memory/1764-116-0x0000000000400000-0x0000000000420000-memory.dmp

                          memory/1764-118-0x0000000000400000-0x0000000000420000-memory.dmp

                          memory/1764-117-0x0000000000400000-0x0000000000420000-memory.dmp

                          memory/1764-122-0x0000000000400000-0x0000000000420000-memory.dmp

                          memory/1764-115-0x0000000000400000-0x0000000000420000-memory.dmp

                          memory/1764-123-0x0000000000400000-0x0000000000420000-memory.dmp

                          memory/1764-124-0x0000000000B70000-0x0000000000B71000-memory.dmp

                          memory/1928-55-0x00000000005A8000-0x00000000005B9000-memory.dmp

                          memory/1928-59-0x0000000000020000-0x0000000000029000-memory.dmp