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Analysis

  • max time kernel
    152s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    27/09/2021, 06:15

General

  • Target

    c3f20c9b1318e18c27bf77039ce49157.exe

  • Size

    135KB

  • MD5

    c3f20c9b1318e18c27bf77039ce49157

  • SHA1

    ee544248e7b8bb6703812b40b698e3cf8f6a9268

  • SHA256

    9b047c007e428da0cc6a5c01b143ac1f299133ae7509e88923c430f7ee8b3f27

  • SHA512

    9fe84246083c9d2ae5467e396a406a3dffa0fc438599a2f5cf822966d6b15f992c3db4b53b714e6312ea1a06271a35f6d1b70e6a8798272b636b1d6034f928f4

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

raccoon

Botnet

a72c96f6762e4258a13dee8bc0dd14557df18467

Attributes
  • url4cnc

    https://t.me/h_wacel1new_1

rc4.plain
rc4.plain

Extracted

Family

raccoon

Botnet

b2f2e53f9e27f901d453d8f6fbafe1b4d5266bb7

Attributes
  • url4cnc

    https://t.me/hcdrom1

rc4.plain
rc4.plain

Extracted

Family

raccoon

Botnet

c524886d28411e80660e573d1de51f17556d70f6

Attributes
  • url4cnc

    https://t.me/hobabastrepsils

rc4.plain
rc4.plain

Extracted

Family

raccoon

Botnet

5ff0ccb2bc00dc52d1ad09949e9c7663bc9ca4d4

Attributes
  • url4cnc

    https://t.me/agrybirdsgamerept

rc4.plain
rc4.plain

Extracted

Family

redline

Botnet

Bliss

C2

185.237.98.178:62607

Extracted

Family

redline

Botnet

karma

C2

94.103.9.133:39323

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • Generic Chinese Botnet

    A botnet originating from China which is currently unnamed publicly.

  • 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
  • xmrig

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

  • Arkei Stealer Payload 1 IoCs
  • Chinese Botnet Payload 1 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • 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
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 4 IoCs

    Detects Themida, an advanced Windows software protection system.

  • 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.

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Drops file in Program Files directory 2 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 6 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 59 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of FindShellTrayWindow 8 IoCs
  • Suspicious use of SendNotifyMessage 6 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c3f20c9b1318e18c27bf77039ce49157.exe
    "C:\Users\Admin\AppData\Local\Temp\c3f20c9b1318e18c27bf77039ce49157.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:968
    • C:\Users\Admin\AppData\Local\Temp\c3f20c9b1318e18c27bf77039ce49157.exe
      "C:\Users\Admin\AppData\Local\Temp\c3f20c9b1318e18c27bf77039ce49157.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1628
  • C:\Users\Admin\AppData\Local\Temp\53CA.exe
    C:\Users\Admin\AppData\Local\Temp\53CA.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1644
    • C:\Users\Admin\AppData\Local\Temp\53CA.exe
      C:\Users\Admin\AppData\Local\Temp\53CA.exe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:788
  • C:\Users\Admin\AppData\Local\Temp\5AEC.exe
    C:\Users\Admin\AppData\Local\Temp\5AEC.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:1776
  • C:\Users\Admin\AppData\Local\Temp\68D2.exe
    C:\Users\Admin\AppData\Local\Temp\68D2.exe
    1⤵
    • Executes dropped EXE
    PID:1012
  • C:\Users\Admin\AppData\Local\Temp\7245.exe
    C:\Users\Admin\AppData\Local\Temp\7245.exe
    1⤵
    • Executes dropped EXE
    PID:1400
  • C:\Users\Admin\AppData\Local\Temp\7ABE.exe
    C:\Users\Admin\AppData\Local\Temp\7ABE.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:1948
  • C:\Users\Admin\AppData\Local\Temp\7E86.exe
    C:\Users\Admin\AppData\Local\Temp\7E86.exe
    1⤵
    • Executes dropped EXE
    PID:1916
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 716
      2⤵
      • Loads dropped DLL
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:2496
  • C:\Users\Admin\AppData\Local\Temp\8220.exe
    C:\Users\Admin\AppData\Local\Temp\8220.exe
    1⤵
    • Executes dropped EXE
    PID:1292
    • C:\Users\Admin\AppData\Local\Temp\SindonsWelfare_2021-09-26_15-02.exe
      "C:\Users\Admin\AppData\Local\Temp\SindonsWelfare_2021-09-26_15-02.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1708
    • C:\Users\Admin\AppData\Local\Temp\SolanumsYoghurt_2021-09-26_14-52.exe
      "C:\Users\Admin\AppData\Local\Temp\SolanumsYoghurt_2021-09-26_14-52.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1156
    • C:\Users\Admin\AppData\Local\Temp\fbf.exe
      "C:\Users\Admin\AppData\Local\Temp\fbf.exe"
      2⤵
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Checks processor information in registry
      • Suspicious use of SetWindowsHookEx
      PID:1016
  • C:\Users\Admin\AppData\Local\Temp\878D.exe
    C:\Users\Admin\AppData\Local\Temp\878D.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:2000
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hcwrfwfw\
      2⤵
        PID:1156
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hbkuhkpb.exe" C:\Windows\SysWOW64\hcwrfwfw\
        2⤵
          PID:1536
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create hcwrfwfw binPath= "C:\Windows\SysWOW64\hcwrfwfw\hbkuhkpb.exe /d\"C:\Users\Admin\AppData\Local\Temp\878D.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:1924
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description hcwrfwfw "wifi internet conection"
            2⤵
              PID:436
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start hcwrfwfw
              2⤵
                PID:1028
              • 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:1688
              • C:\Users\Admin\AppData\Local\Temp\8CAD.exe
                C:\Users\Admin\AppData\Local\Temp\8CAD.exe
                1⤵
                • Executes dropped EXE
                PID:1644
              • C:\Users\Admin\AppData\Local\Temp\9890.exe
                C:\Users\Admin\AppData\Local\Temp\9890.exe
                1⤵
                • Executes dropped EXE
                • Loads dropped DLL
                • Suspicious use of SetThreadContext
                • Suspicious use of AdjustPrivilegeToken
                PID:1664
                • C:\Users\Admin\AppData\Local\Temp\9890.exe
                  "C:\Users\Admin\AppData\Local\Temp\9890.exe"
                  2⤵
                  • Executes dropped EXE
                  PID:1536
              • C:\Windows\system32\conhost.exe
                \??\C:\Windows\system32\conhost.exe "1948382480777526740-175333783417461593891289249547237881325-1053761220-1722269276"
                1⤵
                  PID:1924
                • C:\Windows\SysWOW64\hcwrfwfw\hbkuhkpb.exe
                  C:\Windows\SysWOW64\hcwrfwfw\hbkuhkpb.exe /d"C:\Users\Admin\AppData\Local\Temp\878D.exe"
                  1⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  PID:1752
                  • C:\Windows\SysWOW64\svchost.exe
                    svchost.exe
                    2⤵
                    • Drops file in System32 directory
                    • Suspicious use of SetThreadContext
                    • Modifies data under HKEY_USERS
                    PID:1964
                    • 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:2184
                • C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe
                  "C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe"
                  1⤵
                  • Executes dropped EXE
                  • Drops file in System32 directory
                  • Modifies data under HKEY_USERS
                  • Suspicious use of SetWindowsHookEx
                  PID:2428
                  • C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe
                    "C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe" Win7
                    2⤵
                    • Executes dropped EXE
                    • Drops file in System32 directory
                    • Modifies data under HKEY_USERS
                    • Suspicious use of SetWindowsHookEx
                    PID:2556

                Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • memory/968-57-0x0000000000220000-0x0000000000229000-memory.dmp

                  Filesize

                  36KB

                • memory/1012-80-0x0000000000230000-0x00000000002C0000-memory.dmp

                  Filesize

                  576KB

                • memory/1012-82-0x0000000000400000-0x00000000004F1000-memory.dmp

                  Filesize

                  964KB

                • memory/1016-159-0x0000000000400000-0x00000000004C4000-memory.dmp

                  Filesize

                  784KB

                • memory/1016-153-0x0000000000790000-0x000000000084C000-memory.dmp

                  Filesize

                  752KB

                • memory/1016-161-0x0000000010000000-0x0000000010018000-memory.dmp

                  Filesize

                  96KB

                • memory/1156-157-0x00000000048F4000-0x00000000048F6000-memory.dmp

                  Filesize

                  8KB

                • memory/1156-155-0x00000000048F2000-0x00000000048F3000-memory.dmp

                  Filesize

                  4KB

                • memory/1156-151-0x0000000002350000-0x0000000002372000-memory.dmp

                  Filesize

                  136KB

                • memory/1156-147-0x00000000003B0000-0x00000000003E7000-memory.dmp

                  Filesize

                  220KB

                • memory/1156-154-0x00000000048F1000-0x00000000048F2000-memory.dmp

                  Filesize

                  4KB

                • memory/1156-148-0x0000000000400000-0x00000000004CB000-memory.dmp

                  Filesize

                  812KB

                • memory/1156-149-0x0000000002160000-0x0000000002183000-memory.dmp

                  Filesize

                  140KB

                • memory/1156-156-0x00000000048F3000-0x00000000048F4000-memory.dmp

                  Filesize

                  4KB

                • memory/1364-81-0x0000000003E80000-0x0000000003E96000-memory.dmp

                  Filesize

                  88KB

                • memory/1364-58-0x0000000002A90000-0x0000000002AA6000-memory.dmp

                  Filesize

                  88KB

                • memory/1400-87-0x0000000000130000-0x0000000000131000-memory.dmp

                  Filesize

                  4KB

                • memory/1400-86-0x0000000000120000-0x0000000000121000-memory.dmp

                  Filesize

                  4KB

                • memory/1400-84-0x0000000000100000-0x0000000000101000-memory.dmp

                  Filesize

                  4KB

                • memory/1400-89-0x0000000001070000-0x0000000001803000-memory.dmp

                  Filesize

                  7.6MB

                • memory/1400-85-0x0000000000110000-0x0000000000111000-memory.dmp

                  Filesize

                  4KB

                • memory/1400-83-0x00000000000F0000-0x00000000000F1000-memory.dmp

                  Filesize

                  4KB

                • memory/1400-88-0x0000000000140000-0x0000000000141000-memory.dmp

                  Filesize

                  4KB

                • memory/1536-124-0x0000000000400000-0x0000000000493000-memory.dmp

                  Filesize

                  588KB

                • memory/1536-132-0x0000000000400000-0x0000000000493000-memory.dmp

                  Filesize

                  588KB

                • memory/1628-56-0x0000000076B61000-0x0000000076B63000-memory.dmp

                  Filesize

                  8KB

                • memory/1628-54-0x0000000000400000-0x0000000000409000-memory.dmp

                  Filesize

                  36KB

                • memory/1644-129-0x00000000004F0000-0x0000000000580000-memory.dmp

                  Filesize

                  576KB

                • memory/1644-130-0x0000000000400000-0x00000000004F0000-memory.dmp

                  Filesize

                  960KB

                • memory/1664-119-0x0000000000E90000-0x0000000000E91000-memory.dmp

                  Filesize

                  4KB

                • memory/1664-122-0x0000000000300000-0x000000000031D000-memory.dmp

                  Filesize

                  116KB

                • memory/1664-131-0x0000000004A10000-0x0000000004A11000-memory.dmp

                  Filesize

                  4KB

                • memory/1708-144-0x0000000000400000-0x00000000004C5000-memory.dmp

                  Filesize

                  788KB

                • memory/1708-152-0x0000000004863000-0x0000000004864000-memory.dmp

                  Filesize

                  4KB

                • memory/1708-145-0x0000000004861000-0x0000000004862000-memory.dmp

                  Filesize

                  4KB

                • memory/1708-146-0x0000000004862000-0x0000000004863000-memory.dmp

                  Filesize

                  4KB

                • memory/1708-158-0x0000000004864000-0x0000000004866000-memory.dmp

                  Filesize

                  8KB

                • memory/1708-143-0x00000000003D0000-0x0000000000400000-memory.dmp

                  Filesize

                  192KB

                • memory/1708-142-0x0000000000830000-0x000000000084F000-memory.dmp

                  Filesize

                  124KB

                • memory/1708-150-0x00000000008F0000-0x000000000090E000-memory.dmp

                  Filesize

                  120KB

                • memory/1752-140-0x0000000000400000-0x00000000004AD000-memory.dmp

                  Filesize

                  692KB

                • memory/1776-67-0x0000000005480000-0x0000000005481000-memory.dmp

                  Filesize

                  4KB

                • memory/1776-65-0x00000000013E0000-0x00000000013E1000-memory.dmp

                  Filesize

                  4KB

                • memory/1916-101-0x0000000000400000-0x000000000044D000-memory.dmp

                  Filesize

                  308KB

                • memory/1916-100-0x0000000000280000-0x00000000002AD000-memory.dmp

                  Filesize

                  180KB

                • memory/1948-94-0x0000000000F60000-0x0000000000F61000-memory.dmp

                  Filesize

                  4KB

                • memory/1948-96-0x0000000000F00000-0x0000000000F01000-memory.dmp

                  Filesize

                  4KB

                • memory/1964-137-0x0000000000080000-0x0000000000095000-memory.dmp

                  Filesize

                  84KB

                • memory/1964-141-0x0000000000080000-0x0000000000095000-memory.dmp

                  Filesize

                  84KB

                • memory/2000-111-0x00000000002A0000-0x00000000002B3000-memory.dmp

                  Filesize

                  76KB

                • memory/2000-112-0x0000000000400000-0x00000000004AD000-memory.dmp

                  Filesize

                  692KB

                • memory/2184-163-0x00000000001B0000-0x00000000002A1000-memory.dmp

                  Filesize

                  964KB

                • memory/2496-178-0x0000000000210000-0x0000000000211000-memory.dmp

                  Filesize

                  4KB