Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    09/07/2024, 21:17

General

  • Target

    libcrypto-1_1-x64.dll

  • Size

    2.1MB

  • MD5

    e37cf85193275925afdb82a266069174

  • SHA1

    8027ca74a08e02dc096a9a3f92081bd5a7a20c67

  • SHA256

    307ec11b5a2a83aa2787b8f3cbecb4ea93868a3b3982ebbd5392f3efe9141c78

  • SHA512

    16db460c1872711a9e84cbe60d587adf56750ff0720b50c992b749bf3f3e8f50d76af9976742aaf933bcded4ab663c6134dec8593b5d071af8eb0050f1285418

  • SSDEEP

    49152:onej4p8c8PFouXSgeAx7rRJHULSn17x95XsjRDFtEMawsusXxQ61CPwDv3uFfJ7:Ks+uXh7LUq17TWdDFtEUx61CPwDv3uFZ

Malware Config

Extracted

Family

metastealer

C2

kiyaqoimsiieeyqa.xyz

ssqsmisuowqcwsqo.xyz

ykqmwgsuummieaug.xyz

ewukeskgqswqesiw.xyz

cscqcsgewmwwaaui.xyz

cyoksykiamiscyia.xyz

okgomokemoucqeso.xyz

ikwacuakiqeimwua.xyz

aawcsqqaywckiwmi.xyz

aiqasksgmyeqocei.xyz

qgumcuisgaeyuqqe.xyz

eiesoycamyqqgcea.xyz

ywceswakicsqomqw.xyz

auaieuewouawygku.xyz

cmiascusccywowcs.xyz

uiqkkomkaceqacec.xyz

quqeciymqmkqccqw.xyz

ssqsauuuyyigouou.xyz

aogaakukuugqswcy.xyz

ucgwcwsuqsuwewgc.xyz

Attributes
  • dga_seed

    21845

  • domain_length

    16

  • num_dga_domains

    10000

  • port

    443

Signatures

  • Meta Stealer

    Meta Stealer steals passwords stored in browsers, written in C++.

  • MetaStealer payload 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • 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 2 IoCs
  • Drops file in Windows directory 7 IoCs
  • Gathers system information 1 TTPs 1 IoCs

    Runs systeminfo.exe.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 40 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\libcrypto-1_1-x64.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2704
    • C:\Windows\system32\msiexec.exe
      msiexec.exe /i "C:\Users\Admin\AppData\Local\Microsoft\Windows\windrv.msi" /Qn
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2780
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2720
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding ADC02E20E1B49103A4C1569717DC2457
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2840
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-8f5a85aa-6656-45de-9b12-d09a30bccddd\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        PID:2792
      • C:\Windows\SysWOW64\EXPAND.EXE
        "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        PID:2604
      • C:\Users\Admin\AppData\Local\Temp\MW-8f5a85aa-6656-45de-9b12-d09a30bccddd\files\setup.exe
        "C:\Users\Admin\AppData\Local\Temp\MW-8f5a85aa-6656-45de-9b12-d09a30bccddd\files\setup.exe" /VERYSILENT /VERYSILENT
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2036
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Microsoft\Windows\systemtask.exe"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Drops file in System32 directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1008
        • C:\Windows\SysWOW64\systeminfo.exe
          systeminfo
          4⤵
          • Gathers system information
          PID:2480
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell Add-MpPreference -ExclusionPath "$env:LOCALAPPDATA\Microsoft\windows\systemtask.exe"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Drops file in System32 directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2508

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\windrv.msi

          Filesize

          1.6MB

          MD5

          24cbbd2c70efbb75845548513114317e

          SHA1

          bd13f38e7301648b8cea6135a851b8691fda2c27

          SHA256

          b31e366ae13a960eb0efbfb5074b0abd1f300151289833d7dfa1a9382bea1855

          SHA512

          b7b0e4fa57e17b0da21a85f56f29a711ff226c8a9e95ca59721e4f20e32b9cbd8a5fdf69010e79f8452df5457a055cc2a41f2ad773eaf692680bc39cb8e50ead

        • C:\Users\Admin\AppData\Local\Temp\MW-8f5a85aa-6656-45de-9b12-d09a30bccddd\files.cab

          Filesize

          1.3MB

          MD5

          57c5b54337af1acd54c65c5abae694b2

          SHA1

          87b6b5eebf8fa70a42bd2cf192740b7130a521a2

          SHA256

          ead264b457fd74737f51a2c4bf5d4679d7e1dcdd1547aca6fe3bf7e117c9d0d8

          SHA512

          af10bdc86a45d59d6e46b5cfa942348360c3ac4312d122bf80783673c448861621811a2c3f4446355037b98a67f642cb8ae27945619d0cd32aaeff9656c0982e

        • C:\Users\Admin\AppData\Local\Temp\MW-8f5a85aa-6656-45de-9b12-d09a30bccddd\msiwrapper.ini

          Filesize

          1KB

          MD5

          d642dde1f44d19ada3f148bd94e35ed8

          SHA1

          fbe678c75e97e27ea043557f03b6a2ad485c33ce

          SHA256

          1a86ef095dab3b4db76846aeed512749e65884bf37ca9dbdb1f906a15c96a7b4

          SHA512

          852c27c890a335505326bb224fcb27e35e726610d4238e69724cb2bd720b07a931999c4bd563bb3d4ecb7552618cf294d4cb5cbfdfc5a3c135a418f40f8e8d68

        • C:\Users\Admin\AppData\Local\Temp\MW-8f5a85aa-6656-45de-9b12-d09a30bccddd\msiwrapper.ini

          Filesize

          1KB

          MD5

          81060730cba632da8bfe1356520ae11a

          SHA1

          83a298792f6a1a124a2f3f1204991e434410635b

          SHA256

          e7dac5f4f785f9aff03992bcb8b828033e656e1f6e29d67e7015cb49546357aa

          SHA512

          4a08fa6e29fe9763f6c3b3b9dd9646158bb2cacc06ad9e757abb2e25751f4a3e1c387921853385f1ca305a6b7cc4569c0b2394c211c59c1e2fb2872402754adb

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

          Filesize

          7KB

          MD5

          70fa27ae979d10db087547e21d281ae0

          SHA1

          3f0cd579725484c9beb1110ea19eeff1e9163d36

          SHA256

          805e02413171b8c89650a1f7f42faa7f50ad54a6e5028152e74f43153e596ee5

          SHA512

          be118d34a165eb8065d0a9649b56c71f3d4717fd14cccd9b1e59a1629e3444607a0f379ebf44c78cfe2f2c0cc0b00ae8567ee34412b0fa4ac5623b2800d96fb0

        • C:\Windows\Installer\MSIEDA9.tmp

          Filesize

          208KB

          MD5

          0c8921bbcc37c6efd34faf44cf3b0cb5

          SHA1

          dcfa71246157edcd09eecaf9d4c5e360b24b3e49

          SHA256

          fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

          SHA512

          ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108

        • memory/2036-70-0x0000000010000000-0x000000001072E000-memory.dmp

          Filesize

          7.2MB