Analysis

  • max time kernel
    121s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    05-07-2024 17:36

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:2072
    • C:\Windows\system32\msiexec.exe
      msiexec.exe /i "C:\Users\Admin\AppData\Local\Microsoft\Windows\windrv.msi" /Qn
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2248
  • 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:2780
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 24DB8638B7DB85DCF8AD99819F57FCDD
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2644
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-8c478490-427b-4e56-93a9-cbfb6dee7280\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        PID:992
      • C:\Windows\SysWOW64\EXPAND.EXE
        "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        PID:2768
      • C:\Users\Admin\AppData\Local\Temp\MW-8c478490-427b-4e56-93a9-cbfb6dee7280\files\setup.exe
        "C:\Users\Admin\AppData\Local\Temp\MW-8c478490-427b-4e56-93a9-cbfb6dee7280\files\setup.exe" /VERYSILENT /VERYSILENT
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3016
        • 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:2732
        • C:\Windows\SysWOW64\systeminfo.exe
          systeminfo
          4⤵
          • Gathers system information
          PID:1308
        • 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:1132

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-8c478490-427b-4e56-93a9-cbfb6dee7280\files.cab

    Filesize

    1.3MB

    MD5

    57c5b54337af1acd54c65c5abae694b2

    SHA1

    87b6b5eebf8fa70a42bd2cf192740b7130a521a2

    SHA256

    ead264b457fd74737f51a2c4bf5d4679d7e1dcdd1547aca6fe3bf7e117c9d0d8

    SHA512

    af10bdc86a45d59d6e46b5cfa942348360c3ac4312d122bf80783673c448861621811a2c3f4446355037b98a67f642cb8ae27945619d0cd32aaeff9656c0982e

  • C:\Users\Admin\AppData\Local\Temp\MW-8c478490-427b-4e56-93a9-cbfb6dee7280\msiwrapper.ini

    Filesize

    1KB

    MD5

    b7f099d62c59872a745fd69ccc9941e7

    SHA1

    156a375bb71e46ad5fb99c177dc164cb299210c9

    SHA256

    ba5da424fc9f7f621ef4979fc88a89bc9a97bd627d6e331a2cf1d291ac0c8d4c

    SHA512

    b99197b82b6c5167f353ac8a25fef5f0dccc670824bd55d40428adccadd1957d3d3ea344e477cf0371e0680f698fd57e7674fe68b364fc2127e539daabcdd5d7

  • C:\Users\Admin\AppData\Local\Temp\MW-8c478490-427b-4e56-93a9-cbfb6dee7280\msiwrapper.ini

    Filesize

    1KB

    MD5

    b2e67a09b342b2b68a307ab2a5f23fd1

    SHA1

    97d9ace2fe81d244a5c349501a530a84d9364f10

    SHA256

    31f8df669699f7c691704a7fa513395064a9fe1cd4578f9c8981590416f00f2c

    SHA512

    fd8a809d4a42ba989ff4982cde9e43ce47de136b84506ba04e5883c66a9dd6dc35895fcd11f52d7f2e53724d7ab5fee6ff19015d0d4b6469d99d705e89684b92

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

    Filesize

    7KB

    MD5

    6bac546c53f88cb2ae168aea71ed04e0

    SHA1

    7a92d9e9b41f9ee1644ecd0595233eb86146c4d0

    SHA256

    72aea6379b7fe169dd277c4657080e347bf67c117bf6ffd8d045df20c3285379

    SHA512

    42873826a059bc9d32027c57032284710d2cb187e3d0637c3eb7ffd495ae5a979bce312f33469be258e419a468baf41708b0426ec4a5d4d6c8e54363e3fc32ab

  • C:\Windows\Installer\MSIFCC6.tmp

    Filesize

    208KB

    MD5

    0c8921bbcc37c6efd34faf44cf3b0cb5

    SHA1

    dcfa71246157edcd09eecaf9d4c5e360b24b3e49

    SHA256

    fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

    SHA512

    ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108

  • memory/3016-70-0x0000000010000000-0x000000001072E000-memory.dmp

    Filesize

    7.2MB