Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-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 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:3196
    • C:\Windows\system32\msiexec.exe
      msiexec.exe /i "C:\Users\Admin\AppData\Local\Microsoft\Windows\windrv.msi" /Qn
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3808
  • 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:1368
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 2146F334CBE5B9BD76ED92FBA474412B
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:220
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-8742a5a6-6dda-4a7e-b23e-49250900fe92\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        PID:3260
      • C:\Windows\SysWOW64\EXPAND.EXE
        "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        PID:1612
      • C:\Users\Admin\AppData\Local\Temp\MW-8742a5a6-6dda-4a7e-b23e-49250900fe92\files\setup.exe
        "C:\Users\Admin\AppData\Local\Temp\MW-8742a5a6-6dda-4a7e-b23e-49250900fe92\files\setup.exe" /VERYSILENT /VERYSILENT
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4884
        • 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:2248
        • C:\Windows\SysWOW64\systeminfo.exe
          systeminfo
          4⤵
          • Gathers system information
          PID:1684
        • 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:2880

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    18KB

    MD5

    aefa1ee129e9c9002253c55efcb7f546

    SHA1

    1ae0fa78f8bbb559891c0b29305bb04d67e160fc

    SHA256

    f7a46d75f78dc58946eeb795ab94c53091c8fafb98ca77bba9f2ee9862314aa8

    SHA512

    5da07422d988f476a4f13f8bcd3248088581dcf1fb11bb9161bd2d756ead0679e5476b50a268c3eb249ba51b14e1661526ace2bdc0ade439c01671332c1e5990

  • 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-8742a5a6-6dda-4a7e-b23e-49250900fe92\files.cab

    Filesize

    1.3MB

    MD5

    57c5b54337af1acd54c65c5abae694b2

    SHA1

    87b6b5eebf8fa70a42bd2cf192740b7130a521a2

    SHA256

    ead264b457fd74737f51a2c4bf5d4679d7e1dcdd1547aca6fe3bf7e117c9d0d8

    SHA512

    af10bdc86a45d59d6e46b5cfa942348360c3ac4312d122bf80783673c448861621811a2c3f4446355037b98a67f642cb8ae27945619d0cd32aaeff9656c0982e

  • C:\Users\Admin\AppData\Local\Temp\MW-8742a5a6-6dda-4a7e-b23e-49250900fe92\msiwrapper.ini

    Filesize

    1KB

    MD5

    b5b465cdf0a301425084da456b280473

    SHA1

    09346ab65d1d7c2af25b3f56fc9069e99f7e5e10

    SHA256

    8f67856454299f788cbacf42690dba79aea42b1a8148e3f396a4b181ca7dd1a0

    SHA512

    bd4fb2bad3a4b33696bbaf958495758129267971c84f30754e7a0f520efe4b2d2b53f224f9d9098298d5f3f88c70e80d0700a10cab696cd08de344e8808053df

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ghl4w4ki.arg.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Windows\Installer\MSI9923.tmp

    Filesize

    208KB

    MD5

    0c8921bbcc37c6efd34faf44cf3b0cb5

    SHA1

    dcfa71246157edcd09eecaf9d4c5e360b24b3e49

    SHA256

    fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

    SHA512

    ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108

  • memory/2248-101-0x00000000064F0000-0x000000000650E000-memory.dmp

    Filesize

    120KB

  • memory/2248-104-0x0000000007200000-0x000000000721A000-memory.dmp

    Filesize

    104KB

  • memory/2248-75-0x0000000005820000-0x0000000005886000-memory.dmp

    Filesize

    408KB

  • memory/2248-76-0x0000000005890000-0x00000000058F6000-memory.dmp

    Filesize

    408KB

  • memory/2248-73-0x0000000004F80000-0x00000000055A8000-memory.dmp

    Filesize

    6.2MB

  • memory/2248-86-0x0000000005900000-0x0000000005C54000-memory.dmp

    Filesize

    3.3MB

  • memory/2248-88-0x0000000005ED0000-0x0000000005EEE000-memory.dmp

    Filesize

    120KB

  • memory/2248-89-0x0000000005F00000-0x0000000005F4C000-memory.dmp

    Filesize

    304KB

  • memory/2248-91-0x000000006E7A0000-0x000000006E7EC000-memory.dmp

    Filesize

    304KB

  • memory/2248-90-0x00000000064B0000-0x00000000064E2000-memory.dmp

    Filesize

    200KB

  • memory/2248-72-0x0000000004910000-0x0000000004946000-memory.dmp

    Filesize

    216KB

  • memory/2248-102-0x00000000070E0000-0x0000000007183000-memory.dmp

    Filesize

    652KB

  • memory/2248-103-0x0000000007850000-0x0000000007ECA000-memory.dmp

    Filesize

    6.5MB

  • memory/2248-74-0x0000000004F30000-0x0000000004F52000-memory.dmp

    Filesize

    136KB

  • memory/2248-105-0x0000000007270000-0x000000000727A000-memory.dmp

    Filesize

    40KB

  • memory/2248-106-0x0000000007490000-0x0000000007526000-memory.dmp

    Filesize

    600KB

  • memory/2248-107-0x0000000007400000-0x0000000007411000-memory.dmp

    Filesize

    68KB

  • memory/2248-108-0x0000000007430000-0x000000000743E000-memory.dmp

    Filesize

    56KB

  • memory/2248-109-0x0000000007440000-0x0000000007454000-memory.dmp

    Filesize

    80KB

  • memory/2248-110-0x0000000007550000-0x000000000756A000-memory.dmp

    Filesize

    104KB

  • memory/2248-111-0x0000000007480000-0x0000000007488000-memory.dmp

    Filesize

    32KB

  • memory/2880-125-0x0000000005E40000-0x0000000006194000-memory.dmp

    Filesize

    3.3MB

  • memory/2880-130-0x000000006E7A0000-0x000000006E7EC000-memory.dmp

    Filesize

    304KB

  • memory/2880-140-0x0000000007960000-0x0000000007971000-memory.dmp

    Filesize

    68KB

  • memory/2880-141-0x00000000079B0000-0x00000000079C4000-memory.dmp

    Filesize

    80KB

  • memory/4884-68-0x0000000010000000-0x000000001072E000-memory.dmp

    Filesize

    7.2MB