Resubmissions

01/04/2025, 21:24

250401-z8184awycs 10

Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/02/2025, 23:08

General

  • Target

    5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe

  • Size

    669KB

  • MD5

    ead18f3a909685922d7213714ea9a183

  • SHA1

    1270bd7fd62acc00447b30f066bb23f4745869bf

  • SHA256

    5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18

  • SHA512

    6e532d9c3d186e4dac38823ae9152056346e283613f0caf088b21a1b3e5f4f6cf3bad8c407168b1072895a386e3be0b8c11ad1cb326d3d3ff0eb8562052def91

  • SSDEEP

    6144:bLUHLyHlwFjxDi2nEZkQ4NXxp0XMgkBWPqdN/jGdfYY7SRA7j4YlvfYAAjJ:4uFi02nEZh4jp0XLuxGdgTm73vL

Malware Config

Extracted

Path

C:\Users\Public\Documents\_readme.txt

Ransom Note
ATTENTION! Don't worry my friend, you can return all your files! All your files like photos, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-T9WE5uiVT6 Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 046Sdsd3273yifhsisySD60h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
URLs

https://we.tl/t-T9WE5uiVT6

Signatures

  • Renames multiple (162) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Modifies file permissions 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 15 IoCs
  • Looks up external IP address via web service 6 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
    "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3708
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\4884c8d3-d459-4c00-ae4c-f6bd331aa0dd" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      • System Location Discovery: System Language Discovery
      PID:3140
    • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
      "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • Drops desktop.ini file(s)
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2708
      • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --ForNetRes "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1 IsNotAutoStart IsNotTask
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3100
        • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
          "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 3100 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:4936
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 1096
            5⤵
            • Program crash
            PID:4820
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3100 -s 1684
          4⤵
          • Program crash
          PID:4068
      • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 2708 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:208
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3708 -s 2136
      2⤵
      • Program crash
      PID:2052
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3708 -ip 3708
    1⤵
      PID:1716
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4936 -ip 4936
      1⤵
        PID:4132
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 3100 -ip 3100
        1⤵
          PID:316

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\ProgramData\Microsoft\Network\Downloader\edbtmp.log

          Filesize

          1.3MB

          MD5

          f782b09fd215d3d9bb898d61ea2e7a37

          SHA1

          a382348e9592bdf93dd10c49773b815a992fa7c7

          SHA256

          7bd4646090dff9875e08ea00e5727b11be19fcb850344856e66360c152835694

          SHA512

          9342bd7a0cbabd7e699ea545897a6403371a0034e4bea067a9662dad9e492c5fa9b27efa4c850e1c001c79d6a76ffe0dacb6831010e41c8d5e2a92bd5b898606

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12

          Filesize

          1KB

          MD5

          c9be626e9715952e9b70f92f912b9787

          SHA1

          aa2e946d9ad9027172d0d321917942b7562d6abe

          SHA256

          c13e8d22800c200915f87f71c31185053e4e60ca25de2e41e160e09cd2d815d4

          SHA512

          7581b7c593785380e9db3ae760af85c1a889f607a3cd2aa5a2695a0e5a0fe8ee751578e88f7d8c997faeda804e2fc2655d859bee2832eace526ed4379edaa3f5

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8

          Filesize

          436B

          MD5

          971c514f84bba0785f80aa1c23edfd79

          SHA1

          732acea710a87530c6b08ecdf32a110d254a54c8

          SHA256

          f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895

          SHA512

          43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12

          Filesize

          174B

          MD5

          430475c37196b1bdc0b245a5d57cb7d2

          SHA1

          5e7ba2a20e9e8a2fb315b1b46afaa1a25157ecc6

          SHA256

          b7d327ac660f80163f0795632057879463df48f6e0637b04acfe26fbf6f404eb

          SHA512

          d94a9f40a4e0c2e7a6dc70d5678d30af207a566c8278c8bb6a665dd5ec522128c9b3acfd8f1f579dc16d70276b9682ed223dc8cb6430908e5bf76e98394fa948

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8

          Filesize

          170B

          MD5

          72e046cde8f727e7952247af715ad0df

          SHA1

          9f75741ac2f207ab50a5484d5b445360f55ca29b

          SHA256

          efff246e5d580e3ef4c97e2368892560d7e22a9a6f292752c105ab75f116a0e4

          SHA512

          552174aa91981a7316a323bb49854f3fcb269117570f317042b12c3a63fda17600e968d61b402f424a4e4d4dcdd518fba8f7b3a4b65cfb3dee834acf2434bf8a

        • C:\Users\Admin\AppData\Local\4884c8d3-d459-4c00-ae4c-f6bd331aa0dd\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe

          Filesize

          669KB

          MD5

          ead18f3a909685922d7213714ea9a183

          SHA1

          1270bd7fd62acc00447b30f066bb23f4745869bf

          SHA256

          5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18

          SHA512

          6e532d9c3d186e4dac38823ae9152056346e283613f0caf088b21a1b3e5f4f6cf3bad8c407168b1072895a386e3be0b8c11ad1cb326d3d3ff0eb8562052def91

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\1DKHYZAK\geo[1].json

          Filesize

          542B

          MD5

          794f37d6fcc52e598a6b9b993bfa8922

          SHA1

          f31f03ba70324db01078cc41a06b6bcf3f07056e

          SHA256

          3356f73006fee0c1448598764560c334e02d4eccc556bd4ed6f5f1537476cc33

          SHA512

          192888f5b6fbd0fcd308752edb8023ee1db8c3a813183b496785dc18de6e76484aba883ccf3c6df925a624133cf01bd6f1e278c5bd0e883d654a3eda13e3e399

        • C:\Users\Public\Documents\_readme.txt

          Filesize

          1KB

          MD5

          d75064cfaac9c92f52aadf373dc7e463

          SHA1

          36ea05181d9b037694929ec81f276f13c7d2655c

          SHA256

          163ec5b903b6baadd32d560c44c1ea4dce241579a7493eb32c632eae9085d508

          SHA512

          43387299749f31c623c5dd4a53ff4d2eff5edfeb80fd4e2edd45860b5c9367d2767ae2ee9b60824b57301999dd2bd995b7d3bd5e7187e447aed76106272559d1

        • memory/208-43-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/208-32-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/208-31-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/2708-38-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/2708-14-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/2708-27-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/2708-28-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/2708-29-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/2708-19-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/2708-20-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3100-39-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3100-49-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3708-0-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3708-17-0x0000000000400000-0x0000000000476000-memory.dmp

          Filesize

          472KB

        • memory/3708-16-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3708-3-0x0000000000400000-0x0000000000476000-memory.dmp

          Filesize

          472KB

        • memory/3708-2-0x00000000004B0000-0x00000000005B0000-memory.dmp

          Filesize

          1024KB

        • memory/4936-46-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/4936-48-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB