Analysis

  • max time kernel
    152s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-01-2024 01:13

General

  • Target

    2a62ea99f6e89fb1bcf249917cc87bfc.exe

  • Size

    206KB

  • MD5

    2a62ea99f6e89fb1bcf249917cc87bfc

  • SHA1

    c5640703e1ed6276babbef5102dc247aaf3c17c8

  • SHA256

    ecbaeab79bb9ff98c691ffddfd29e59282af48d48a87fbe20cb94dc83c1c89f3

  • SHA512

    0a07d8b63555871cc339397ecad4e27cb0f75bf11ef66ac0c1070e06336a45936af70140f71bc635a01a218531955a6000906d4250d138ce09781c7e79717566

  • SSDEEP

    3072:Yp/htLJYeiJiiKnTa0/WxCExkGB4wYxRfHVvBL2A:+TLJYehe0/W8Qjn

Malware Config

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Signatures

  • BetaBot

    Beta Bot is a Trojan that infects computers and disables Antivirus.

  • Modifies firewall policy service 2 TTPs 4 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Sets file execution options in registry 2 TTPs 4 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • NSIS installer 8 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 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.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies Internet Explorer Protected Mode 1 TTPs 4 IoCs
  • Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 30 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2a62ea99f6e89fb1bcf249917cc87bfc.exe
    "C:\Users\Admin\AppData\Local\Temp\2a62ea99f6e89fb1bcf249917cc87bfc.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:4864
  • C:\Users\Admin\AppData\Local\Temp\3B20.exe
    C:\Users\Admin\AppData\Local\Temp\3B20.exe
    1⤵
    • Sets file execution options in registry
    • Executes dropped EXE
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2592
    • C:\Windows\SysWOW64\explorer.exe
      C:\Windows\SysWOW64\explorer.exe
      2⤵
      • Modifies firewall policy service
      • Sets file execution options in registry
      • Checks BIOS information in registry
      • Adds Run key to start application
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies Internet Explorer Protected Mode
      • Modifies Internet Explorer Protected Mode Banner
      • Modifies Internet Explorer settings
      • Suspicious use of AdjustPrivilegeToken
      PID:2840
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2840 -s 1148
        3⤵
        • Program crash
        PID:2696
  • C:\Users\Admin\AppData\Local\Temp\41B8.exe
    C:\Users\Admin\AppData\Local\Temp\41B8.exe
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:792
    • C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe
      "C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4968
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2840 -ip 2840
    1⤵
      PID:2548

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\3B20.exe

      Filesize

      360KB

      MD5

      80c413180b6bd0dd664adc4e0665b494

      SHA1

      e791e4a3391fc6b7bcb58399cd4fa3c52a06b940

      SHA256

      6d99cec56614b6b8a23dfa84a50c6bbfde535411c6366ac2bcc20c9f5af62880

      SHA512

      347f4ae6f308b37d055a6177478e45ab3838d7020abed70c7aa138d2c3771e709de204da8550aebdcaa6139d869dc7328cc7e645c4dd48d1066f9ad70225644a

    • C:\Users\Admin\AppData\Local\Temp\41B8.exe

      Filesize

      1.7MB

      MD5

      587cb299d7fd57abc9e0aeed7f9c8e8c

      SHA1

      80eb78e394e74a944e6ed697d92812ffa6ebf733

      SHA256

      ba150b576aa9c8ad9e399e4d153ab0f1d2d5c6555414a57d5984cab8eb54aa93

      SHA512

      e06ecadb48108b8686c903fe249448c6125846c124d342681754a34fe010b759c8e2398a06bd41a5d36255f5daacf1ba01b58b3cb67b8313472fe75268e081e8

    • C:\Users\Admin\AppData\Local\Temp\41B8.exe

      Filesize

      2.1MB

      MD5

      d9d65da9a42dfd6574af99fd91ad6d36

      SHA1

      c51dd2c281b04f5b6ef939ef5315471e35794456

      SHA256

      067b992bb03ae9b46b94cbcb352f6fb248b0ea125ddc8ee302e987556677c700

      SHA512

      8ff32f31b4b9a6aab12fe5486f2f4ecb070c29ea79ced2ecf21fcac1e71cb23991a60dd2f98db72f211de322fb4cf59f2bdb27e45717ab874af9345779ebfe48

    • C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe

      Filesize

      1.2MB

      MD5

      ce5f4d3f4c40f133cea7ac0082afa159

      SHA1

      b9b46711c7d0facd8f3b79e82d5a3a0165003ee4

      SHA256

      d4a4182eb33942ddd75922823eccf3bdc7e903b47f15d30f2e08fc90195bacb3

      SHA512

      25d8b708f9acb22e87afbec55ee26bf9f1b8cb1f26c8980fd57cefba18463bc97936f1dff35d8ffb4a0f7f048573a5d027091c053f5f856cdcd6f6c5d5bd56f0

    • C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe

      Filesize

      471KB

      MD5

      8b4a7189e18023d4c697b2900e8c6138

      SHA1

      354833010578649f5345f7ce167e759d54473908

      SHA256

      c9e44e7e3f2d1720aba0546106f32822113bb10ec92f9c6a93dd1271218e3a60

      SHA512

      14ce4e5e51e98f73278e9cfc9bf4020d6e42afb0178b5c53ba589f75284d83ab78c9e40fcb68d3dd8c8f012bc94de1d96a70251fc7017b92e07f0edd4cfa08a3

    • C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe

      Filesize

      628KB

      MD5

      02a41db807f66e2c26f8bc4b90770af4

      SHA1

      87cc2ccd164f582078b04d351029d17a3727c835

      SHA256

      8f4d8593bbcc81ee99a8ce0e7b562e1f222daf6368d610c08c5ea75d85f43af7

      SHA512

      b180411bfae92ae723b3da5f584b3c5e1ecd5eb36440458a463353410cb4d80f21a56c8aeb09860d5b9f61062bbb060d08f1991369461a5dd5b10991caeaf7bb

    • C:\Users\Admin\AppData\Local\Temp\lib.dll

      Filesize

      395KB

      MD5

      54f678e79d67753243a62f19fc208c26

      SHA1

      b228bdc24b7342caa9d289eaef6693798bf41a97

      SHA256

      2bbaea38a01cd9c2b218e314dbb534056ab91a935c78d9e8a290113745fc6094

      SHA512

      17360fa35c280aa2e73cb13245c49b871f79efb7ca58edf8ba272e5ea77defe7772fd7c30782ad27e0234d065b3b0e461bd9c94a283955d05996194784c00afb

    • C:\Users\Admin\AppData\Local\Temp\nsq47B3.tmp\System.dll

      Filesize

      12KB

      MD5

      dd87a973e01c5d9f8e0fcc81a0af7c7a

      SHA1

      c9206ced48d1e5bc648b1d0f54cccc18bf643a14

      SHA256

      7fb0f8d452fefaac789986b933df050f3d3e4feb8a8d9944ada995f572dcdca1

      SHA512

      4910b39b1a99622ac8b3c42f173bbe7035ac2f8d40c946468e7db7e2868a2da81ea94da453857f06f39957dd690c7f1ba498936a7aaa0039975e472376f92e8f

    • memory/792-32-0x0000000000340000-0x00000000008D6000-memory.dmp

      Filesize

      5.6MB

    • memory/792-46-0x0000000000340000-0x00000000008D6000-memory.dmp

      Filesize

      5.6MB

    • memory/2592-20-0x0000000077D44000-0x0000000077D45000-memory.dmp

      Filesize

      4KB

    • memory/2592-17-0x0000000000720000-0x000000000072D000-memory.dmp

      Filesize

      52KB

    • memory/2592-14-0x0000000000010000-0x000000000006D000-memory.dmp

      Filesize

      372KB

    • memory/2592-18-0x0000000000980000-0x00000000009E6000-memory.dmp

      Filesize

      408KB

    • memory/2592-16-0x0000000000980000-0x00000000009E6000-memory.dmp

      Filesize

      408KB

    • memory/2592-21-0x0000000000A10000-0x0000000000A11000-memory.dmp

      Filesize

      4KB

    • memory/2592-22-0x0000000002830000-0x000000000283C000-memory.dmp

      Filesize

      48KB

    • memory/2592-38-0x0000000000980000-0x00000000009E6000-memory.dmp

      Filesize

      408KB

    • memory/2592-23-0x0000000000980000-0x00000000009E6000-memory.dmp

      Filesize

      408KB

    • memory/2592-36-0x0000000002820000-0x0000000002821000-memory.dmp

      Filesize

      4KB

    • memory/2840-62-0x0000000001400000-0x00000000014C4000-memory.dmp

      Filesize

      784KB

    • memory/2840-39-0x0000000001400000-0x00000000014C4000-memory.dmp

      Filesize

      784KB

    • memory/2840-34-0x0000000001400000-0x00000000014C4000-memory.dmp

      Filesize

      784KB

    • memory/2840-61-0x0000000000CC0000-0x00000000010F3000-memory.dmp

      Filesize

      4.2MB

    • memory/2840-59-0x0000000004CE0000-0x0000000004CE2000-memory.dmp

      Filesize

      8KB

    • memory/2840-27-0x0000000000CC0000-0x00000000010F4000-memory.dmp

      Filesize

      4.2MB

    • memory/2840-24-0x0000000000CC0000-0x00000000010F4000-memory.dmp

      Filesize

      4.2MB

    • memory/3444-4-0x0000000002B20000-0x0000000002B36000-memory.dmp

      Filesize

      88KB

    • memory/4864-2-0x0000000000400000-0x0000000000439000-memory.dmp

      Filesize

      228KB

    • memory/4864-5-0x0000000000400000-0x0000000000439000-memory.dmp

      Filesize

      228KB

    • memory/4864-1-0x0000000000730000-0x0000000000830000-memory.dmp

      Filesize

      1024KB

    • memory/4864-3-0x0000000000660000-0x0000000000669000-memory.dmp

      Filesize

      36KB

    • memory/4968-58-0x0000000073290000-0x00000000739A7000-memory.dmp

      Filesize

      7.1MB

    • memory/4968-63-0x0000000073290000-0x00000000739A7000-memory.dmp

      Filesize

      7.1MB