Analysis

  • max time kernel
    137s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/07/2024, 18:04

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 1 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 Windows directory 9 IoCs
  • Gathers system information 1 TTPs 1 IoCs

    Runs systeminfo.exe.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 38 IoCs
  • Suspicious use of WriteProcessMemory 23 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:4804
    • C:\Windows\system32\msiexec.exe
      msiexec.exe /i "C:\Users\Admin\AppData\Local\Microsoft\Windows\windrv.msi" /Qn
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4728
  • 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:3964
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 68704F2938F08D9827BEC8B1EDB51842
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3804
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-5bffcfe9-a264-4fff-85c8-a81c79aa1656\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        PID:5112
      • C:\Windows\SysWOW64\EXPAND.EXE
        "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        PID:4144
      • C:\Users\Admin\AppData\Local\Temp\MW-5bffcfe9-a264-4fff-85c8-a81c79aa1656\files\setup.exe
        "C:\Users\Admin\AppData\Local\Temp\MW-5bffcfe9-a264-4fff-85c8-a81c79aa1656\files\setup.exe" /VERYSILENT /VERYSILENT
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4876
        • 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
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3052
        • C:\Windows\SysWOW64\systeminfo.exe
          systeminfo
          4⤵
          • Gathers system information
          PID:3272
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell Add-MpPreference -ExclusionPath "$env:LOCALAPPDATA\Microsoft\windows\systemtask.exe"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4724

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

          Filesize

          2KB

          MD5

          968cb9309758126772781b83adb8a28f

          SHA1

          8da30e71accf186b2ba11da1797cf67f8f78b47c

          SHA256

          92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

          SHA512

          4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

          Filesize

          18KB

          MD5

          f680c65bc8d0df0fb308c078a8879b86

          SHA1

          2692fa92ea706b4ab413c1ed0fc53321e0c28dbd

          SHA256

          ec34547950398bcddd7b1a303385d244a3fe154ca563ceb29910b302633fa503

          SHA512

          1da779c16333f169c37f9c7a6e2f1cce51736584784af216ed2d7eb641ab95a2740cf60bd3ac23584f630a9b19f8d0f3eb792fa03aa60ec2fdef5ec88ac0530a

        • 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-5bffcfe9-a264-4fff-85c8-a81c79aa1656\files.cab

          Filesize

          1.3MB

          MD5

          57c5b54337af1acd54c65c5abae694b2

          SHA1

          87b6b5eebf8fa70a42bd2cf192740b7130a521a2

          SHA256

          ead264b457fd74737f51a2c4bf5d4679d7e1dcdd1547aca6fe3bf7e117c9d0d8

          SHA512

          af10bdc86a45d59d6e46b5cfa942348360c3ac4312d122bf80783673c448861621811a2c3f4446355037b98a67f642cb8ae27945619d0cd32aaeff9656c0982e

        • C:\Users\Admin\AppData\Local\Temp\MW-5bffcfe9-a264-4fff-85c8-a81c79aa1656\msiwrapper.ini

          Filesize

          1KB

          MD5

          c440f5d00513e201b2953bac8ab64c66

          SHA1

          8bcf2887a4a8d789450ac66bf2549361852ff190

          SHA256

          146832bed6833a4575eb2cbb50bccac8b4454952372fc2acd5e62ae55b5af620

          SHA512

          a89f824cbb78112738af33c018b333c1c197bcee7a2e1ae9afcaea5391fedd3e3626fecfc3c73e5d65e9c9e4502e98476a06d10c019e4e664de3a482f56b5f52

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qtlssdeh.djz.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Windows\Installer\MSI5350.tmp

          Filesize

          208KB

          MD5

          0c8921bbcc37c6efd34faf44cf3b0cb5

          SHA1

          dcfa71246157edcd09eecaf9d4c5e360b24b3e49

          SHA256

          fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

          SHA512

          ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108

        • memory/3052-102-0x0000000006E60000-0x0000000006E7E000-memory.dmp

          Filesize

          120KB

        • memory/3052-91-0x0000000007A40000-0x0000000007A72000-memory.dmp

          Filesize

          200KB

        • memory/3052-77-0x0000000006250000-0x00000000062B6000-memory.dmp

          Filesize

          408KB

        • memory/3052-75-0x00000000058E0000-0x0000000005902000-memory.dmp

          Filesize

          136KB

        • memory/3052-87-0x00000000062C0000-0x0000000006614000-memory.dmp

          Filesize

          3.3MB

        • memory/3052-88-0x0000000006890000-0x00000000068AE000-memory.dmp

          Filesize

          120KB

        • memory/3052-89-0x00000000068C0000-0x000000000690C000-memory.dmp

          Filesize

          304KB

        • memory/3052-92-0x000000006EB40000-0x000000006EB8C000-memory.dmp

          Filesize

          304KB

        • memory/3052-103-0x0000000007A80000-0x0000000007B23000-memory.dmp

          Filesize

          652KB

        • memory/3052-74-0x00000000059D0000-0x0000000005FF8000-memory.dmp

          Filesize

          6.2MB

        • memory/3052-105-0x0000000007BB0000-0x0000000007BCA000-memory.dmp

          Filesize

          104KB

        • memory/3052-104-0x0000000008200000-0x000000000887A000-memory.dmp

          Filesize

          6.5MB

        • memory/3052-106-0x0000000007C10000-0x0000000007C1A000-memory.dmp

          Filesize

          40KB

        • memory/3052-76-0x0000000006170000-0x00000000061D6000-memory.dmp

          Filesize

          408KB

        • memory/3052-107-0x0000000007E40000-0x0000000007ED6000-memory.dmp

          Filesize

          600KB

        • memory/3052-108-0x0000000007DB0000-0x0000000007DC1000-memory.dmp

          Filesize

          68KB

        • memory/3052-109-0x0000000007DF0000-0x0000000007DFE000-memory.dmp

          Filesize

          56KB

        • memory/3052-111-0x0000000007EE0000-0x0000000007EFA000-memory.dmp

          Filesize

          104KB

        • memory/3052-112-0x0000000007E30000-0x0000000007E38000-memory.dmp

          Filesize

          32KB

        • memory/3052-110-0x0000000007E00000-0x0000000007E14000-memory.dmp

          Filesize

          80KB

        • memory/3052-73-0x00000000052D0000-0x0000000005306000-memory.dmp

          Filesize

          216KB

        • memory/4724-131-0x0000000005CE0000-0x0000000006034000-memory.dmp

          Filesize

          3.3MB

        • memory/4724-133-0x0000000006140000-0x000000000618C000-memory.dmp

          Filesize

          304KB

        • memory/4724-134-0x000000006F1D0000-0x000000006F21C000-memory.dmp

          Filesize

          304KB

        • memory/4724-144-0x0000000007300000-0x00000000073A3000-memory.dmp

          Filesize

          652KB

        • memory/4724-145-0x0000000007620000-0x0000000007631000-memory.dmp

          Filesize

          68KB

        • memory/4724-146-0x0000000007670000-0x0000000007684000-memory.dmp

          Filesize

          80KB

        • memory/4876-69-0x0000000010000000-0x000000001072E000-memory.dmp

          Filesize

          7.2MB