Resubmissions

13/07/2024, 09:54 UTC

240713-lxbx6swdmm 10

13/07/2024, 09:50 UTC

240713-lvbvdsyapd 10

13/07/2024, 09:46 UTC

240713-lr1dksyajd 10

Analysis

  • max time kernel
    1687s
  • max time network
    1162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/07/2024, 09:54 UTC

General

  • Target

    27c9f44e0c5de68792b684355a68ad83eba89cbe46cc9cf3a6efeb448c9f39d6.exe

  • Size

    352KB

  • MD5

    b431bf2649aee55b729f1668a7bc4b12

  • SHA1

    f618c191798cd8a809120bbf6b09ff79d8877138

  • SHA256

    27c9f44e0c5de68792b684355a68ad83eba89cbe46cc9cf3a6efeb448c9f39d6

  • SHA512

    b31ac84b8d41c4d77536763acf3daa75c437b62e792329f232892e7939b35ed8731f3aaaa3e406cf1bf6121a64c920dd03df4da07847debdd2caae3dc70ed544

  • SSDEEP

    3072:L3kLEir9ihicEQ23lcjxXedA3MYRjuOGK2OIcVtkzuwOYHYHYN4YHYHYcSuCexyM:Ur9ikcL2mj4d6riOZ+qSHej/Kd+bN

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\read_it.txt

Family

chaos

Ransom Note
----> Chaos is multi language ransomware. Translate your note to any language <---- All of your files have been encrypted Your computer was infected with a ransomware virus. Your files have been encrypted and you won't be able to decrypt them without our help.What can I do to get my files back?You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer.The price for the software is $150. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - hxxps://www.coinmama.com Binance - https://www.binance.com ,mexc and more. Payment informationAmount: 0.0067 BTC Bitcoin Address: bc1qkmfndcprala97f79g7j89q24qs9fs63qdeva69
URLs

https://www.binance.com

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 2 IoCs
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops desktop.ini file(s) 34 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

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

  • Interacts with shadow copies 3 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 45 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of WriteProcessMemory 20 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.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\27c9f44e0c5de68792b684355a68ad83eba89cbe46cc9cf3a6efeb448c9f39d6.exe
    "C:\Users\Admin\AppData\Local\Temp\27c9f44e0c5de68792b684355a68ad83eba89cbe46cc9cf3a6efeb448c9f39d6.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1728
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Sets desktop wallpaper using registry
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1596
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1908
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:3964
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2824
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:884
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1680
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3880
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4460
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:2736
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:4564
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3680
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2860
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:4940
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1576

    Network

    • flag-us
      DNS
      g.bing.com
      Remote address:
      8.8.8.8:53
      Request
      g.bing.com
      IN A
      Response
      g.bing.com
      IN CNAME
      g-bing-com.dual-a-0034.a-msedge.net
      g-bing-com.dual-a-0034.a-msedge.net
      IN CNAME
      dual-a-0034.a-msedge.net
      dual-a-0034.a-msedge.net
      IN A
      13.107.21.237
      dual-a-0034.a-msedge.net
      IN A
      204.79.197.237
    • flag-us
      GET
      https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=7fd90d4babe144438125af9c2bf42098&localId=w:29030E6B-39D2-65A0-5B93-B1D2300B7E50&deviceId=6825836757756773&anid=
      Remote address:
      13.107.21.237:443
      Request
      GET /neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=7fd90d4babe144438125af9c2bf42098&localId=w:29030E6B-39D2-65A0-5B93-B1D2300B7E50&deviceId=6825836757756773&anid= HTTP/2.0
      host: g.bing.com
      accept-encoding: gzip, deflate
      user-agent: WindowsShellClient/9.0.40929.0 (Windows)
      Response
      HTTP/2.0 204
      cache-control: no-cache, must-revalidate
      pragma: no-cache
      expires: Fri, 01 Jan 1990 00:00:00 GMT
      set-cookie: MUID=364D67D5441D62CE0CD7736E45FD631B; domain=.bing.com; expires=Thu, 07-Aug-2025 10:12:41 GMT; path=/; SameSite=None; Secure; Priority=High;
      strict-transport-security: max-age=31536000; includeSubDomains; preload
      access-control-allow-origin: *
      x-cache: CONFIG_NOCACHE
      accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
      x-msedge-ref: Ref A: 38FC19BE3EB941958E2C66CAF445731F Ref B: LON04EDGE1119 Ref C: 2024-07-13T10:12:41Z
      date: Sat, 13 Jul 2024 10:12:40 GMT
    • flag-us
      GET
      https://g.bing.com/neg/0?action=emptycreative&adUnitId=11730597&publisherId=251978541&rid=7fd90d4babe144438125af9c2bf42098&localId=w:29030E6B-39D2-65A0-5B93-B1D2300B7E50&deviceId=6825836757756773&anid=
      Remote address:
      13.107.21.237:443
      Request
      GET /neg/0?action=emptycreative&adUnitId=11730597&publisherId=251978541&rid=7fd90d4babe144438125af9c2bf42098&localId=w:29030E6B-39D2-65A0-5B93-B1D2300B7E50&deviceId=6825836757756773&anid= HTTP/2.0
      host: g.bing.com
      accept-encoding: gzip, deflate
      user-agent: WindowsShellClient/9.0.40929.0 (Windows)
      cookie: MUID=364D67D5441D62CE0CD7736E45FD631B
      Response
      HTTP/2.0 204
      cache-control: no-cache, must-revalidate
      pragma: no-cache
      expires: Fri, 01 Jan 1990 00:00:00 GMT
      set-cookie: MSPTC=quhkWCf_3YFVMJ_C85EDC0Q_D3l2eHp5h9yfrrvITzE; domain=.bing.com; expires=Thu, 07-Aug-2025 10:12:41 GMT; path=/; Partitioned; secure; SameSite=None
      strict-transport-security: max-age=31536000; includeSubDomains; preload
      access-control-allow-origin: *
      x-cache: CONFIG_NOCACHE
      accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
      x-msedge-ref: Ref A: E99ECD581B234D929833126F2203288E Ref B: LON04EDGE1119 Ref C: 2024-07-13T10:12:41Z
      date: Sat, 13 Jul 2024 10:12:40 GMT
    • flag-us
      GET
      https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=7fd90d4babe144438125af9c2bf42098&localId=w:29030E6B-39D2-65A0-5B93-B1D2300B7E50&deviceId=6825836757756773&anid=
      Remote address:
      13.107.21.237:443
      Request
      GET /neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=7fd90d4babe144438125af9c2bf42098&localId=w:29030E6B-39D2-65A0-5B93-B1D2300B7E50&deviceId=6825836757756773&anid= HTTP/2.0
      host: g.bing.com
      accept-encoding: gzip, deflate
      user-agent: WindowsShellClient/9.0.40929.0 (Windows)
      cookie: MUID=364D67D5441D62CE0CD7736E45FD631B; MSPTC=quhkWCf_3YFVMJ_C85EDC0Q_D3l2eHp5h9yfrrvITzE
      Response
      HTTP/2.0 204
      cache-control: no-cache, must-revalidate
      pragma: no-cache
      expires: Fri, 01 Jan 1990 00:00:00 GMT
      strict-transport-security: max-age=31536000; includeSubDomains; preload
      access-control-allow-origin: *
      x-cache: CONFIG_NOCACHE
      accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
      x-msedge-ref: Ref A: B45C283C0D644562BA6D308E7D697CE5 Ref B: LON04EDGE1119 Ref C: 2024-07-13T10:12:41Z
      date: Sat, 13 Jul 2024 10:12:40 GMT
    • flag-us
      DNS
      8.8.8.8.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      8.8.8.8.in-addr.arpa
      IN PTR
      Response
      8.8.8.8.in-addr.arpa
      IN PTR
      dnsgoogle
    • flag-us
      DNS
      237.21.107.13.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      237.21.107.13.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      73.144.22.2.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      73.144.22.2.in-addr.arpa
      IN PTR
      Response
      73.144.22.2.in-addr.arpa
      IN PTR
      a2-22-144-73deploystaticakamaitechnologiescom
    • flag-us
      DNS
      69.31.126.40.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      69.31.126.40.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      86.23.85.13.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      86.23.85.13.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      206.23.85.13.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      206.23.85.13.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      172.214.232.199.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      172.214.232.199.in-addr.arpa
      IN PTR
      Response
    • flag-us
      DNS
      81.144.22.2.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      81.144.22.2.in-addr.arpa
      IN PTR
      Response
      81.144.22.2.in-addr.arpa
      IN PTR
      a2-22-144-81deploystaticakamaitechnologiescom
    • flag-us
      DNS
      93.65.42.20.in-addr.arpa
      Remote address:
      8.8.8.8:53
      Request
      93.65.42.20.in-addr.arpa
      IN PTR
      Response
    • 13.107.21.237:443
      https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=7fd90d4babe144438125af9c2bf42098&localId=w:29030E6B-39D2-65A0-5B93-B1D2300B7E50&deviceId=6825836757756773&anid=
      tls, http2
      2.0kB
      9.3kB
      22
      19

      HTTP Request

      GET https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=7fd90d4babe144438125af9c2bf42098&localId=w:29030E6B-39D2-65A0-5B93-B1D2300B7E50&deviceId=6825836757756773&anid=

      HTTP Response

      204

      HTTP Request

      GET https://g.bing.com/neg/0?action=emptycreative&adUnitId=11730597&publisherId=251978541&rid=7fd90d4babe144438125af9c2bf42098&localId=w:29030E6B-39D2-65A0-5B93-B1D2300B7E50&deviceId=6825836757756773&anid=

      HTTP Response

      204

      HTTP Request

      GET https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=7fd90d4babe144438125af9c2bf42098&localId=w:29030E6B-39D2-65A0-5B93-B1D2300B7E50&deviceId=6825836757756773&anid=

      HTTP Response

      204
    • 8.8.8.8:53
      g.bing.com
      dns
      56 B
      151 B
      1
      1

      DNS Request

      g.bing.com

      DNS Response

      13.107.21.237
      204.79.197.237

    • 8.8.8.8:53
      8.8.8.8.in-addr.arpa
      dns
      66 B
      90 B
      1
      1

      DNS Request

      8.8.8.8.in-addr.arpa

    • 8.8.8.8:53
      237.21.107.13.in-addr.arpa
      dns
      72 B
      158 B
      1
      1

      DNS Request

      237.21.107.13.in-addr.arpa

    • 8.8.8.8:53
      73.144.22.2.in-addr.arpa
      dns
      70 B
      133 B
      1
      1

      DNS Request

      73.144.22.2.in-addr.arpa

    • 8.8.8.8:53
      69.31.126.40.in-addr.arpa
      dns
      71 B
      157 B
      1
      1

      DNS Request

      69.31.126.40.in-addr.arpa

    • 8.8.8.8:53
      86.23.85.13.in-addr.arpa
      dns
      70 B
      144 B
      1
      1

      DNS Request

      86.23.85.13.in-addr.arpa

    • 8.8.8.8:53
      206.23.85.13.in-addr.arpa
      dns
      71 B
      145 B
      1
      1

      DNS Request

      206.23.85.13.in-addr.arpa

    • 8.8.8.8:53
      172.214.232.199.in-addr.arpa
      dns
      74 B
      128 B
      1
      1

      DNS Request

      172.214.232.199.in-addr.arpa

    • 8.8.8.8:53
      81.144.22.2.in-addr.arpa
      dns
      70 B
      133 B
      1
      1

      DNS Request

      81.144.22.2.in-addr.arpa

    • 8.8.8.8:53
      93.65.42.20.in-addr.arpa
      dns
      70 B
      156 B
      1
      1

      DNS Request

      93.65.42.20.in-addr.arpa

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\svchost.exe

      Filesize

      352KB

      MD5

      b431bf2649aee55b729f1668a7bc4b12

      SHA1

      f618c191798cd8a809120bbf6b09ff79d8877138

      SHA256

      27c9f44e0c5de68792b684355a68ad83eba89cbe46cc9cf3a6efeb448c9f39d6

      SHA512

      b31ac84b8d41c4d77536763acf3daa75c437b62e792329f232892e7939b35ed8731f3aaaa3e406cf1bf6121a64c920dd03df4da07847debdd2caae3dc70ed544

    • C:\Users\Admin\Desktop\read_it.txt

      Filesize

      973B

      MD5

      76988bff758f9226768719b023900431

      SHA1

      6e4644424162e07d6d81020fe7c8f850ae5c85f3

      SHA256

      e1e6a69aff85dfa728e4ce3b9834f04ad6f393c11abeec8c9f604476f7b6c49a

      SHA512

      268450c56d91b98e277d7bcffa66cb612f23dcbd441a59a4b1892c0929e6e756389b8a7ee9268d815c2c9b39101b27d16ddcd688308dd1b299a0f4c52b033c35

    • memory/1596-14-0x00007FFCD8280000-0x00007FFCD8D41000-memory.dmp

      Filesize

      10.8MB

    • memory/1596-70-0x00007FFCD8280000-0x00007FFCD8D41000-memory.dmp

      Filesize

      10.8MB

    • memory/1728-0-0x0000000000460000-0x00000000004BE000-memory.dmp

      Filesize

      376KB

    • memory/1728-1-0x00007FFCD8283000-0x00007FFCD8285000-memory.dmp

      Filesize

      8KB

    We care about your privacy.

    This website stores cookies on your computer. These cookies are used to improve your website experience and provide more personalized services to you, both on this website and through other media. To find out more about the cookies we use, see our Privacy Policy.