Analysis

  • max time kernel
    359s
  • max time network
    359s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04-07-2024 11:38

General

  • Target

    windrv.msi

  • Size

    1.6MB

  • MD5

    24cbbd2c70efbb75845548513114317e

  • SHA1

    bd13f38e7301648b8cea6135a851b8691fda2c27

  • SHA256

    b31e366ae13a960eb0efbfb5074b0abd1f300151289833d7dfa1a9382bea1855

  • SHA512

    b7b0e4fa57e17b0da21a85f56f29a711ff226c8a9e95ca59721e4f20e32b9cbd8a5fdf69010e79f8452df5457a055cc2a41f2ad773eaf692680bc39cb8e50ead

  • SSDEEP

    24576:Ct9cpVDhBCBAoYDN7Q4Wui7WSBwS+ex4p4Xl2jTl1Q4yriWQ9kz/O:1pRhBeANNc4WJr5ZTXluTb9OV

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.

  • 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 46 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 10 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Event Triggered Execution: Installer Packages 1 TTPs 1 IoCs
  • Gathers system information 1 TTPs 1 IoCs

    Runs systeminfo.exe.

  • Modifies data under HKEY_USERS 43 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 55 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\windrv.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2868
  • 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:2632
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding C7E11C2417AD24C25E8EA72951DCCFD0
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2680
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-55492e46-8ac3-4038-91ab-0bb00f35578f\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        PID:632
      • C:\Windows\SysWOW64\EXPAND.EXE
        "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        PID:2512
      • C:\Users\Admin\AppData\Local\Temp\MW-55492e46-8ac3-4038-91ab-0bb00f35578f\files\setup.exe
        "C:\Users\Admin\AppData\Local\Temp\MW-55492e46-8ac3-4038-91ab-0bb00f35578f\files\setup.exe" /VERYSILENT /VERYSILENT
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2296
        • 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:2140
        • C:\Windows\SysWOW64\systeminfo.exe
          systeminfo
          4⤵
          • Gathers system information
          PID:1348
        • 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:2364
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3024
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "0000000000000594" "0000000000000494"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MW-55492e46-8ac3-4038-91ab-0bb00f35578f\files.cab

    Filesize

    1.3MB

    MD5

    57c5b54337af1acd54c65c5abae694b2

    SHA1

    87b6b5eebf8fa70a42bd2cf192740b7130a521a2

    SHA256

    ead264b457fd74737f51a2c4bf5d4679d7e1dcdd1547aca6fe3bf7e117c9d0d8

    SHA512

    af10bdc86a45d59d6e46b5cfa942348360c3ac4312d122bf80783673c448861621811a2c3f4446355037b98a67f642cb8ae27945619d0cd32aaeff9656c0982e

  • C:\Users\Admin\AppData\Local\Temp\MW-55492e46-8ac3-4038-91ab-0bb00f35578f\msiwrapper.ini

    Filesize

    380B

    MD5

    a3d6a8e92be162d2cd9f887aa9b61ed9

    SHA1

    c6f4b0c996900d81479282f9199e9697699610da

    SHA256

    cc97f4c73d4f551bd1fd6d4f16192d4deea370c8dace4278d8a7af943dbaec62

    SHA512

    583816eeb75c2a971456530cbc2272f74fd89b2aeb1eee54a56feaa678eca4f80fa4bf53d5c73c99c32a2287954b39757cc84c16cbdf9524a53fd8ff8c8accc8

  • C:\Users\Admin\AppData\Local\Temp\MW-55492e46-8ac3-4038-91ab-0bb00f35578f\msiwrapper.ini

    Filesize

    1KB

    MD5

    ca3d736eea5d46d0309209a96c484df2

    SHA1

    6e36ccb05cca7acaffe01205306558acd9aacd42

    SHA256

    d775e61c90096d232964d9de47a7bd2df925a31e926d35280188a239df59af69

    SHA512

    89f918d4d8252ac01080ac5c09e144b64c7d29a67034074ac7cbd6470d046af42afe45171b3f4c556a394912c4efb75935c5d2f048dfe5072e96d84b749aaf9f

  • C:\Users\Admin\AppData\Local\Temp\MW-55492e46-8ac3-4038-91ab-0bb00f35578f\msiwrapper.ini

    Filesize

    1KB

    MD5

    68df16b4a532afd5172dffbae020bfad

    SHA1

    79b0847b3364580f5504fa635cb1fdd83f3b04de

    SHA256

    bf8a83542c8585543eacefa141bf0a5b7e4c1d2c257adbee0a8b03752e9b854f

    SHA512

    0bd0304661cffecce04aa6bd5f6f5d92e0195cfeab6674338f3bd5c35e717dde8a8945e66b0666314e75ded3395ba1bb60603dad6b20f2f6d8b12f00a2614af8

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

    Filesize

    7KB

    MD5

    04f7da4ddbc9abaed601240a4d78c516

    SHA1

    61437670e73fcbe0b6abb0fbf5f6d07da8b75712

    SHA256

    9df64e7f3b756961b49d379cef1c122988efaf08eec4d3f2fe81ca8245b7b218

    SHA512

    d6c6d02ff44207f141e65c63751172f985ddbda939389a5a9f1ca6525bc4b165e98b4f3379c0281a2846e0e7a65e1ccbb197b9fe810253c4fcb65cb334b15009

  • C:\Windows\Installer\MSI3321.tmp

    Filesize

    208KB

    MD5

    0c8921bbcc37c6efd34faf44cf3b0cb5

    SHA1

    dcfa71246157edcd09eecaf9d4c5e360b24b3e49

    SHA256

    fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

    SHA512

    ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108

  • memory/2296-82-0x0000000010000000-0x000000001072E000-memory.dmp

    Filesize

    7.2MB