Resubmissions

15-04-2023 19:24

230415-x4py6agh6x 8

15-04-2023 17:55

230415-whgj8age8t 8

Analysis

  • max time kernel
    97s
  • max time network
    94s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    15-04-2023 19:24

General

  • Target

    Setup for cm2demo_oWTv-t1.exe

  • Size

    1.7MB

  • MD5

    99a9fbd5fee72ce51585309390a46717

  • SHA1

    ff39c56312090a909c2c0c82629c552a3b252a98

  • SHA256

    833064195b0c96bce9a8c00dc95df6bd9fce1092c1260ba0e877810bfc44b0aa

  • SHA512

    97f9a98fb48c8281818163d3dbe66fa246e1fe6a5a67f15175419992b0ca389cbe086e457177c21ce9c99ff05a1e0b508812cdf30220090a438dd8c94f73c6b7

  • SSDEEP

    24576:R4nXubIQGyxbPV0db26Wmd0l4sv1Et9uGpckT52zedlq89Ws5uIzk5aM/phdO7:Rqe3f61mZSffPMWrQ0ZkA

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Modifies registry class 64 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Setup for cm2demo_oWTv-t1.exe
    "C:\Users\Admin\AppData\Local\Temp\Setup for cm2demo_oWTv-t1.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2496
    • C:\Users\Admin\AppData\Local\Temp\is-S1O3O.tmp\Setup for cm2demo_oWTv-t1.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-S1O3O.tmp\Setup for cm2demo_oWTv-t1.tmp" /SL5="$601F0,831488,831488,C:\Users\Admin\AppData\Local\Temp\Setup for cm2demo_oWTv-t1.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2572
      • C:\Users\Admin\AppData\Local\Temp\is-D6H4J.tmp\file_oWTv-t1.exe
        "C:\Users\Admin\AppData\Local\Temp\is-D6H4J.tmp\file_oWTv-t1.exe" /LANG=en /NA=Rh85hR64
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:4872
        • C:\Users\Admin\AppData\Local\Temp\is-H9DKA.tmp\file_oWTv-t1.tmp
          "C:\Users\Admin\AppData\Local\Temp\is-H9DKA.tmp\file_oWTv-t1.tmp" /SL5="$20202,1559708,780800,C:\Users\Admin\AppData\Local\Temp\is-D6H4J.tmp\file_oWTv-t1.exe" /LANG=en /NA=Rh85hR64
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of FindShellTrayWindow
          PID:4304
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:4080
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3772
    • C:\Windows\system32\browser_broker.exe
      C:\Windows\system32\browser_broker.exe -Embedding
      1⤵
      • Modifies Internet Explorer settings
      PID:2108
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Modifies registry class
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4280
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      PID:5012
    • C:\Windows\SysWOW64\DllHost.exe
      C:\Windows\SysWOW64\DllHost.exe /Processid:{06622D85-6856-4460-8DE1-A81921B41C4B}
      1⤵
        PID:4332
      • C:\Windows\SysWOW64\DllHost.exe
        C:\Windows\SysWOW64\DllHost.exe /Processid:{06622D85-6856-4460-8DE1-A81921B41C4B}
        1⤵
          PID:3180

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Defense Evasion

        Modify Registry

        1
        T1112

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        2
        T1082

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\is-D6H4J.tmp\file_oWTv-t1.exe
          Filesize

          2.3MB

          MD5

          d2f0f12f4476da886b95b13163cdac6b

          SHA1

          4153cb8d94d06c51a9e9429f1319de6d2ddebf85

          SHA256

          61b546f577475819db08e98bb6405265aadbb6a49758f0b92c5258053818effe

          SHA512

          e5328c8f039d68d7483460ad2eb1c9255fc486ff7bfb1433a467b289d084bef01e2cfdac87259f511dda0a0e4bf51937bf42f1a19f4931c3ba03d956b29e9c73

        • C:\Users\Admin\AppData\Local\Temp\is-D6H4J.tmp\file_oWTv-t1.exe
          Filesize

          2.3MB

          MD5

          d2f0f12f4476da886b95b13163cdac6b

          SHA1

          4153cb8d94d06c51a9e9429f1319de6d2ddebf85

          SHA256

          61b546f577475819db08e98bb6405265aadbb6a49758f0b92c5258053818effe

          SHA512

          e5328c8f039d68d7483460ad2eb1c9255fc486ff7bfb1433a467b289d084bef01e2cfdac87259f511dda0a0e4bf51937bf42f1a19f4931c3ba03d956b29e9c73

        • C:\Users\Admin\AppData\Local\Temp\is-H9DKA.tmp\file_oWTv-t1.tmp
          Filesize

          2.9MB

          MD5

          623a3abd7b318e1f410b1e12a42c7b71

          SHA1

          88e34041850ec4019dae469adc608e867b936d21

          SHA256

          fe1a4555d18617532248d2eaa8d3fcc2c74182f994a964a62cf418295e8554d3

          SHA512

          9afea88e4617e0f11416c2a2c416a6aa2d5d1f702d98d2cc223b399736191a6d002d1b717020ca6aae09e835c6356b7ddafad71e101dacab15967d89a105e391

        • C:\Users\Admin\AppData\Local\Temp\is-S1O3O.tmp\Setup for cm2demo_oWTv-t1.tmp
          Filesize

          3.0MB

          MD5

          0c229cd26910820581b5809c62fe5619

          SHA1

          28c0630385b21f29e3e2bcc34865e5d15726eaa0

          SHA256

          abfa49a915d2e0a82561ca440365e6a2d59f228533b56a8f78addf000a1081b3

          SHA512

          b8ff3dc65f7c0e03721572af738ec4886ba895dc70c1a41a3ce8c8abe0946d167cec71913017fd11d5892452db761ea88901a5a09a681ae779dd531edbb83a2a

        • C:\Users\Admin\AppData\Local\Temp\is-TIR6A.tmp\finish.png
          Filesize

          2KB

          MD5

          7afaf9e0e99fd80fa1023a77524f5587

          SHA1

          e20c9c27691810b388c73d2ca3e67e109c2b69b6

          SHA256

          760b70612bb9bd967c2d15a5133a50ccce8c0bd46a6464d76875298dcc45dea0

          SHA512

          a090626e7b7f67fb5aa207aae0cf65c3a27e1b85e22c9728eee7475bd9bb7375ca93baaecc662473f9a427b4f505d55f2c61ba36bda460e4e6947fe22eedb044

        • C:\Users\Admin\AppData\Local\Temp\is-TIR6A.tmp\mainlogo.png
          Filesize

          7KB

          MD5

          c552e74a342cb35fa8b45ed4190c1609

          SHA1

          1e914f5a79af3bc1dc990a9f2d1ebdb41edc82d5

          SHA256

          d386a1220f26de84d3b9a220db6a058e94d82b2403c8f70103ee20fa5579407f

          SHA512

          80837907c8febe9306b149114b637b491bedede7c49d426e6ce9c1b416014c4beb4de57da1bef39a3783a345971b92532ce374f9138255588ebae6d15232a081

        • C:\Users\Admin\Downloads\cm2demo.zip
          Filesize

          1.9MB

          MD5

          54803cf42ba84f17ad77eb066a1b51f5

          SHA1

          130b1736fc5c5d32f17829b605209dbb7bf034a2

          SHA256

          cdb7930dcb5e99eac92b8ddd8ab7f8301f07a68b3ea1ced8067141943fc2484e

          SHA512

          d67b8b17fcf2794d3298ea5e3ba278333164caa39ccef55e284f27febdadf442ae52578f632b4c75f53c6e5efe7a4948036875fcdeac5aa83fea82720cd3ce20

        • \Users\Admin\AppData\Local\Temp\is-TIR6A.tmp\Helper.dll
          Filesize

          2.0MB

          MD5

          4eb0347e66fa465f602e52c03e5c0b4b

          SHA1

          fdfedb72614d10766565b7f12ab87f1fdca3ea81

          SHA256

          c73e53cbb7b98feafe27cc7de8fdad51df438e2235e91891461c5123888f73cc

          SHA512

          4c909a451059628119f92b2f0c8bcd67b31f63b57d5339b6ce8fd930be5c9baf261339fdd9da820321be497df8889ce7594b7bfaadbaa43c694156651bf6c1fd

        • \Users\Admin\AppData\Local\Temp\is-TIR6A.tmp\botva2.dll
          Filesize

          37KB

          MD5

          67965a5957a61867d661f05ae1f4773e

          SHA1

          f14c0a4f154dc685bb7c65b2d804a02a0fb2360d

          SHA256

          450b9b0ba25bf068afbc2b23d252585a19e282939bf38326384ea9112dfd0105

          SHA512

          c6942818b9026dc5db2d62999d32cf99fe7289f79a28b8345af17acf9d13b2229a5e917a48ff1f6d59715bdbcb00c1625e0302abcfe10ca7e0475762e0a3f41b

        • \Users\Admin\AppData\Local\Temp\is-TIR6A.tmp\botva2.dll
          Filesize

          37KB

          MD5

          67965a5957a61867d661f05ae1f4773e

          SHA1

          f14c0a4f154dc685bb7c65b2d804a02a0fb2360d

          SHA256

          450b9b0ba25bf068afbc2b23d252585a19e282939bf38326384ea9112dfd0105

          SHA512

          c6942818b9026dc5db2d62999d32cf99fe7289f79a28b8345af17acf9d13b2229a5e917a48ff1f6d59715bdbcb00c1625e0302abcfe10ca7e0475762e0a3f41b

        • memory/2496-165-0x0000000000400000-0x00000000004D8000-memory.dmp
          Filesize

          864KB

        • memory/2496-121-0x0000000000400000-0x00000000004D8000-memory.dmp
          Filesize

          864KB

        • memory/2496-160-0x0000000000400000-0x00000000004D8000-memory.dmp
          Filesize

          864KB

        • memory/2572-126-0x0000000000780000-0x0000000000781000-memory.dmp
          Filesize

          4KB

        • memory/2572-161-0x0000000000400000-0x000000000071A000-memory.dmp
          Filesize

          3.1MB

        • memory/2572-162-0x0000000000780000-0x0000000000781000-memory.dmp
          Filesize

          4KB

        • memory/2572-163-0x0000000000400000-0x000000000071A000-memory.dmp
          Filesize

          3.1MB

        • memory/4080-556-0x00000241BA7D0000-0x00000241BA7D1000-memory.dmp
          Filesize

          4KB

        • memory/4080-224-0x00000241BBDB0000-0x00000241BBDB2000-memory.dmp
          Filesize

          8KB

        • memory/4080-549-0x00000241BBDD0000-0x00000241BBDD2000-memory.dmp
          Filesize

          8KB

        • memory/4080-552-0x00000241BB8F0000-0x00000241BB8F1000-memory.dmp
          Filesize

          4KB

        • memory/4080-227-0x00000241C0360000-0x00000241C0362000-memory.dmp
          Filesize

          8KB

        • memory/4080-226-0x00000241C0300000-0x00000241C0302000-memory.dmp
          Filesize

          8KB

        • memory/4080-222-0x00000241BB8F0000-0x00000241BB8F1000-memory.dmp
          Filesize

          4KB

        • memory/4080-185-0x00000241BB620000-0x00000241BB630000-memory.dmp
          Filesize

          64KB

        • memory/4080-203-0x00000241BBB00000-0x00000241BBB10000-memory.dmp
          Filesize

          64KB

        • memory/4304-181-0x0000000000780000-0x0000000000781000-memory.dmp
          Filesize

          4KB

        • memory/4304-154-0x0000000005450000-0x000000000545F000-memory.dmp
          Filesize

          60KB

        • memory/4304-146-0x0000000000780000-0x0000000000781000-memory.dmp
          Filesize

          4KB

        • memory/4304-174-0x0000000005450000-0x000000000545F000-memory.dmp
          Filesize

          60KB

        • memory/4304-237-0x0000000000400000-0x00000000006EE000-memory.dmp
          Filesize

          2.9MB

        • memory/4304-173-0x0000000000400000-0x00000000006EE000-memory.dmp
          Filesize

          2.9MB

        • memory/4872-132-0x0000000000400000-0x00000000004CC000-memory.dmp
          Filesize

          816KB

        • memory/4872-239-0x0000000000400000-0x00000000004CC000-memory.dmp
          Filesize

          816KB

        • memory/4872-172-0x0000000000400000-0x00000000004CC000-memory.dmp
          Filesize

          816KB

        • memory/5012-299-0x000002B430AC0000-0x000002B430AC2000-memory.dmp
          Filesize

          8KB

        • memory/5012-308-0x000002B430AE0000-0x000002B430AE2000-memory.dmp
          Filesize

          8KB

        • memory/5012-316-0x000002B430EA0000-0x000002B430EA2000-memory.dmp
          Filesize

          8KB

        • memory/5012-320-0x000002B430F00000-0x000002B430F02000-memory.dmp
          Filesize

          8KB

        • memory/5012-324-0x000002B430FE0000-0x000002B430FE2000-memory.dmp
          Filesize

          8KB

        • memory/5012-366-0x000002B431C40000-0x000002B431C42000-memory.dmp
          Filesize

          8KB

        • memory/5012-373-0x000002B431C50000-0x000002B431C52000-memory.dmp
          Filesize

          8KB

        • memory/5012-376-0x000002B431C60000-0x000002B431C62000-memory.dmp
          Filesize

          8KB

        • memory/5012-411-0x000002B432400000-0x000002B432500000-memory.dmp
          Filesize

          1024KB

        • memory/5012-283-0x000002B430880000-0x000002B430882000-memory.dmp
          Filesize

          8KB