Analysis

  • max time kernel
    80s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    17/01/2022, 09:07

General

  • Target

    91409398a37f95ac3501f372a7d9a6b8.exe

  • Size

    277KB

  • MD5

    91409398a37f95ac3501f372a7d9a6b8

  • SHA1

    fc8089310ec1d3c1a42d7aa5d343c8fe2f2b7731

  • SHA256

    39e1259929a3470b6d064daadf4742ddd59065fa1d72aa334ed298648f27697f

  • SHA512

    5e8d9d69da0a23f21f611272fe035e52ceec87fa0ae3ec5c07dcddaa908c41fc36ce67a64cc1de19b2ba69822ca5b43b4b18ab0ab25dcdd1b1dbb1a42c9a1282

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

raccoon

Version

1.8.4-hotfixs

rc4.plain

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • Process spawned unexpected child process 2 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • 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.

  • Arkei Stealer Payload 2 IoCs
  • 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
  • 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.

  • 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.

  • 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 3 IoCs

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

  • Modifies data under HKEY_USERS 11 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 2 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\91409398a37f95ac3501f372a7d9a6b8.exe
    "C:\Users\Admin\AppData\Local\Temp\91409398a37f95ac3501f372a7d9a6b8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Users\Admin\AppData\Local\Temp\91409398a37f95ac3501f372a7d9a6b8.exe
      "C:\Users\Admin\AppData\Local\Temp\91409398a37f95ac3501f372a7d9a6b8.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:876
  • C:\Users\Admin\AppData\Local\Temp\1075.exe
    C:\Users\Admin\AppData\Local\Temp\1075.exe
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:1736
  • C:\Users\Admin\AppData\Local\Temp\1DC3.exe
    C:\Users\Admin\AppData\Local\Temp\1DC3.exe
    1⤵
    • Executes dropped EXE
    PID:1344
  • C:\Users\Admin\AppData\Local\Temp\240A.exe
    C:\Users\Admin\AppData\Local\Temp\240A.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:1756
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xfczqnvq\
      2⤵
        PID:1584
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iznkxdg.exe" C:\Windows\SysWOW64\xfczqnvq\
        2⤵
          PID:1360
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create xfczqnvq binPath= "C:\Windows\SysWOW64\xfczqnvq\iznkxdg.exe /d\"C:\Users\Admin\AppData\Local\Temp\240A.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:968
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description xfczqnvq "wifi internet conection"
            2⤵
              PID:1400
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start xfczqnvq
              2⤵
                PID:1948
              • 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:1996
              • C:\Users\Admin\AppData\Local\Temp\287E.exe
                C:\Users\Admin\AppData\Local\Temp\287E.exe
                1⤵
                • Executes dropped EXE
                • Loads dropped DLL
                • Suspicious use of SetThreadContext
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:1716
                • C:\Users\Admin\AppData\Local\Temp\287E.exe
                  C:\Users\Admin\AppData\Local\Temp\287E.exe
                  2⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1568
              • C:\Windows\SysWOW64\xfczqnvq\iznkxdg.exe
                C:\Windows\SysWOW64\xfczqnvq\iznkxdg.exe /d"C:\Users\Admin\AppData\Local\Temp\240A.exe"
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of WriteProcessMemory
                PID:2020
                • 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:316
                  • 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:1712
              • C:\Users\Admin\AppData\Local\Temp\8DDA.exe
                C:\Users\Admin\AppData\Local\Temp\8DDA.exe
                1⤵
                • Executes dropped EXE
                PID:1148
              • C:\Users\Admin\AppData\Local\Temp\9DF2.exe
                C:\Users\Admin\AppData\Local\Temp\9DF2.exe
                1⤵
                • Executes dropped EXE
                PID:1688
              • C:\Users\Admin\AppData\Local\Temp\C215.exe
                C:\Users\Admin\AppData\Local\Temp\C215.exe
                1⤵
                • Executes dropped EXE
                PID:1580
              • C:\Users\Admin\AppData\Local\Temp\E5EB.exe
                C:\Users\Admin\AppData\Local\Temp\E5EB.exe
                1⤵
                  PID:796
                • C:\Windows\SysWOW64\explorer.exe
                  C:\Windows\SysWOW64\explorer.exe
                  1⤵
                    PID:728
                  • C:\Windows\explorer.exe
                    C:\Windows\explorer.exe
                    1⤵
                      PID:1724
                    • C:\Users\Admin\AppData\Local\Temp\1F63.exe
                      C:\Users\Admin\AppData\Local\Temp\1F63.exe
                      1⤵
                        PID:1248
                        • C:\Windows\system32\cmd.exe
                          "cmd" /c schtasks /create /f /sc onlogon /rl highest /tn "services" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\services.exe"
                          2⤵
                            PID:1300
                            • C:\Windows\system32\schtasks.exe
                              schtasks /create /f /sc onlogon /rl highest /tn "services" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\services.exe"
                              3⤵
                              • Creates scheduled task(s)
                              PID:940
                        • C:\Windows\system32\schtasks.exe
                          schtasks.exe /create /tn "WMIADAP" /sc ONLOGON /tr "'C:\Windows\System32\wbem\umpnpmgr\WMIADAP.exe'" /rl HIGHEST /f
                          1⤵
                          • Process spawned unexpected child process
                          • Creates scheduled task(s)
                          PID:1504
                        • C:\Windows\system32\schtasks.exe
                          schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Users\Default\PrintHood\System.exe'" /rl HIGHEST /f
                          1⤵
                          • Process spawned unexpected child process
                          • Creates scheduled task(s)
                          PID:984

                        Network

                              MITRE ATT&CK Enterprise v6

                              Replay Monitor

                              Loading Replay Monitor...

                              Downloads

                              • memory/316-90-0x0000000000080000-0x0000000000095000-memory.dmp

                                Filesize

                                84KB

                              • memory/316-89-0x0000000000080000-0x0000000000095000-memory.dmp

                                Filesize

                                84KB

                              • memory/728-164-0x0000000073CE1000-0x0000000073CE3000-memory.dmp

                                Filesize

                                8KB

                              • memory/728-165-0x0000000000130000-0x00000000001A4000-memory.dmp

                                Filesize

                                464KB

                              • memory/728-166-0x00000000000C0000-0x000000000012B000-memory.dmp

                                Filesize

                                428KB

                              • memory/796-141-0x0000000076730000-0x00000000767DC000-memory.dmp

                                Filesize

                                688KB

                              • memory/796-172-0x0000000001ED0000-0x0000000001EDA000-memory.dmp

                                Filesize

                                40KB

                              • memory/796-150-0x0000000000160000-0x0000000000384000-memory.dmp

                                Filesize

                                2.1MB

                              • memory/796-152-0x00000000749F0000-0x0000000074A7F000-memory.dmp

                                Filesize

                                572KB

                              • memory/796-170-0x0000000074520000-0x0000000074537000-memory.dmp

                                Filesize

                                92KB

                              • memory/796-155-0x0000000075470000-0x00000000760BA000-memory.dmp

                                Filesize

                                12.3MB

                              • memory/796-138-0x0000000000100000-0x0000000000101000-memory.dmp

                                Filesize

                                4KB

                              • memory/796-139-0x0000000000390000-0x00000000003D4000-memory.dmp

                                Filesize

                                272KB

                              • memory/796-154-0x00000000024B0000-0x00000000024B1000-memory.dmp

                                Filesize

                                4KB

                              • memory/796-171-0x0000000000640000-0x0000000000650000-memory.dmp

                                Filesize

                                64KB

                              • memory/796-137-0x0000000000160000-0x0000000000384000-memory.dmp

                                Filesize

                                2.1MB

                              • memory/796-136-0x0000000074740000-0x000000007478A000-memory.dmp

                                Filesize

                                296KB

                              • memory/796-173-0x0000000001EF0000-0x0000000001EFA000-memory.dmp

                                Filesize

                                40KB

                              • memory/796-145-0x0000000074A90000-0x0000000074BEC000-memory.dmp

                                Filesize

                                1.4MB

                              • memory/796-151-0x0000000000160000-0x0000000000384000-memory.dmp

                                Filesize

                                2.1MB

                              • memory/796-142-0x0000000074F20000-0x0000000074F67000-memory.dmp

                                Filesize

                                284KB

                              • memory/796-143-0x0000000075370000-0x00000000753C7000-memory.dmp

                                Filesize

                                348KB

                              • memory/876-57-0x0000000075471000-0x0000000075473000-memory.dmp

                                Filesize

                                8KB

                              • memory/876-55-0x0000000000400000-0x0000000000409000-memory.dmp

                                Filesize

                                36KB

                              • memory/1148-123-0x0000000000250000-0x00000000002D0000-memory.dmp

                                Filesize

                                512KB

                              • memory/1148-149-0x0000000000400000-0x0000000002BC5000-memory.dmp

                                Filesize

                                39.8MB

                              • memory/1148-178-0x0000000004600000-0x0000000004691000-memory.dmp

                                Filesize

                                580KB

                              • memory/1148-146-0x0000000000400000-0x0000000002BC5000-memory.dmp

                                Filesize

                                39.8MB

                              • memory/1148-148-0x0000000004530000-0x00000000045C2000-memory.dmp

                                Filesize

                                584KB

                              • memory/1148-176-0x0000000002C80000-0x0000000002CCF000-memory.dmp

                                Filesize

                                316KB

                              • memory/1148-147-0x0000000000370000-0x00000000003D8000-memory.dmp

                                Filesize

                                416KB

                              • memory/1148-179-0x0000000000400000-0x0000000002BC5000-memory.dmp

                                Filesize

                                39.8MB

                              • memory/1148-125-0x0000000000400000-0x0000000002BC5000-memory.dmp

                                Filesize

                                39.8MB

                              • memory/1148-174-0x0000000000400000-0x0000000002BC5000-memory.dmp

                                Filesize

                                39.8MB

                              • memory/1148-124-0x0000000002BD0000-0x0000000002C75000-memory.dmp

                                Filesize

                                660KB

                              • memory/1192-59-0x0000000002AB0000-0x0000000002AC6000-memory.dmp

                                Filesize

                                88KB

                              • memory/1192-113-0x0000000003D20000-0x0000000003D36000-memory.dmp

                                Filesize

                                88KB

                              • memory/1248-168-0x000000013F8B0000-0x00000001401DE000-memory.dmp

                                Filesize

                                9.2MB

                              • memory/1248-169-0x000000013F8B0000-0x00000001401DE000-memory.dmp

                                Filesize

                                9.2MB

                              • memory/1248-175-0x00000000074B0000-0x00000000074B2000-memory.dmp

                                Filesize

                                8KB

                              • memory/1344-64-0x00000000006EB000-0x00000000006FC000-memory.dmp

                                Filesize

                                68KB

                              • memory/1344-66-0x0000000000400000-0x00000000005D0000-memory.dmp

                                Filesize

                                1.8MB

                              • memory/1344-65-0x0000000000220000-0x000000000023C000-memory.dmp

                                Filesize

                                112KB

                              • memory/1516-54-0x000000000026B000-0x000000000027C000-memory.dmp

                                Filesize

                                68KB

                              • memory/1516-58-0x00000000001B0000-0x00000000001B9000-memory.dmp

                                Filesize

                                36KB

                              • memory/1568-100-0x0000000000400000-0x0000000000420000-memory.dmp

                                Filesize

                                128KB

                              • memory/1568-102-0x0000000000400000-0x0000000000420000-memory.dmp

                                Filesize

                                128KB

                              • memory/1568-101-0x0000000000400000-0x0000000000420000-memory.dmp

                                Filesize

                                128KB

                              • memory/1568-99-0x0000000000400000-0x0000000000420000-memory.dmp

                                Filesize

                                128KB

                              • memory/1568-106-0x0000000000400000-0x0000000000420000-memory.dmp

                                Filesize

                                128KB

                              • memory/1568-107-0x0000000000400000-0x0000000000420000-memory.dmp

                                Filesize

                                128KB

                              • memory/1568-103-0x0000000000400000-0x0000000000420000-memory.dmp

                                Filesize

                                128KB

                              • memory/1568-108-0x00000000049B0000-0x00000000049B1000-memory.dmp

                                Filesize

                                4KB

                              • memory/1580-131-0x0000000002180000-0x00000000021E0000-memory.dmp

                                Filesize

                                384KB

                              • memory/1688-180-0x0000000000400000-0x0000000002BC5000-memory.dmp

                                Filesize

                                39.8MB

                              • memory/1688-167-0x0000000000400000-0x0000000002BC5000-memory.dmp

                                Filesize

                                39.8MB

                              • memory/1688-128-0x0000000000230000-0x00000000002B0000-memory.dmp

                                Filesize

                                512KB

                              • memory/1712-114-0x0000000000110000-0x0000000000201000-memory.dmp

                                Filesize

                                964KB

                              • memory/1712-115-0x0000000000110000-0x0000000000201000-memory.dmp

                                Filesize

                                964KB

                              • memory/1716-79-0x0000000000E30000-0x0000000000EBA000-memory.dmp

                                Filesize

                                552KB

                              • memory/1716-96-0x0000000000D70000-0x0000000000D71000-memory.dmp

                                Filesize

                                4KB

                              • memory/1716-97-0x0000000000220000-0x0000000000221000-memory.dmp

                                Filesize

                                4KB

                              • memory/1716-78-0x0000000000E30000-0x0000000000EBA000-memory.dmp

                                Filesize

                                552KB

                              • memory/1724-160-0x0000000000060000-0x000000000006C000-memory.dmp

                                Filesize

                                48KB

                              • memory/1724-159-0x0000000000070000-0x0000000000077000-memory.dmp

                                Filesize

                                28KB

                              • memory/1736-112-0x0000000000400000-0x0000000000452000-memory.dmp

                                Filesize

                                328KB

                              • memory/1736-110-0x0000000000220000-0x0000000000229000-memory.dmp

                                Filesize

                                36KB

                              • memory/1736-111-0x0000000000230000-0x0000000000239000-memory.dmp

                                Filesize

                                36KB

                              • memory/1756-75-0x0000000000220000-0x0000000000233000-memory.dmp

                                Filesize

                                76KB

                              • memory/1756-76-0x0000000000400000-0x00000000005CF000-memory.dmp

                                Filesize

                                1.8MB

                              • memory/1756-69-0x000000000073B000-0x000000000074C000-memory.dmp

                                Filesize

                                68KB

                              • memory/2020-87-0x000000000079B000-0x00000000007AB000-memory.dmp

                                Filesize

                                64KB

                              • memory/2020-93-0x0000000000400000-0x00000000005CF000-memory.dmp

                                Filesize

                                1.8MB