Analysis

  • max time kernel
    135s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-07-2024 11:48

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:220
    • C:\Windows\system32\msiexec.exe
      msiexec.exe /i "C:\Users\Admin\AppData\Local\Microsoft\Windows\windrv.msi" /Qn
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3976
  • 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:4876
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding F04DEC2AFC446B1DA89794D24B50BA48
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3440
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-3d212ee9-00e4-4d11-bd4b-0b44cba80998\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        PID:2212
      • C:\Windows\SysWOW64\EXPAND.EXE
        "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        PID:456
      • C:\Users\Admin\AppData\Local\Temp\MW-3d212ee9-00e4-4d11-bd4b-0b44cba80998\files\setup.exe
        "C:\Users\Admin\AppData\Local\Temp\MW-3d212ee9-00e4-4d11-bd4b-0b44cba80998\files\setup.exe" /VERYSILENT /VERYSILENT
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2988
        • 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:4392
        • C:\Windows\SysWOW64\systeminfo.exe
          systeminfo
          4⤵
          • Gathers system information
          PID:4680
        • 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:2904

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

    4ec93ba99d8fa54ccce797aac9fe0c59

    SHA1

    24dd712bc4bfd601ecebfaa54035aba78221e400

    SHA256

    32ba8124aab41681c42f6f91fecff1c3478c1b51c3b6ba86d9ed5da7dd0585c2

    SHA512

    c3ac065c3ddf3947d5ca373bc9d681d31959557a6db8af27ce7ed37bd406fefd8f946a2ef1d69b407377aa329b5f0589bd56b98d3e24ac7439415001b96cd569

  • 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-3d212ee9-00e4-4d11-bd4b-0b44cba80998\files.cab

    Filesize

    1.3MB

    MD5

    57c5b54337af1acd54c65c5abae694b2

    SHA1

    87b6b5eebf8fa70a42bd2cf192740b7130a521a2

    SHA256

    ead264b457fd74737f51a2c4bf5d4679d7e1dcdd1547aca6fe3bf7e117c9d0d8

    SHA512

    af10bdc86a45d59d6e46b5cfa942348360c3ac4312d122bf80783673c448861621811a2c3f4446355037b98a67f642cb8ae27945619d0cd32aaeff9656c0982e

  • C:\Users\Admin\AppData\Local\Temp\MW-3d212ee9-00e4-4d11-bd4b-0b44cba80998\msiwrapper.ini

    Filesize

    1KB

    MD5

    76a6a86fc4e9809821b287567b839de8

    SHA1

    da09bd4a0e96333c84189ee4ec09e685d68bb1c3

    SHA256

    076c4e4755e4f7f2a29c1f446552f23e7864aab6ad0c7a5f5dd2a1ea3c2564b3

    SHA512

    2cda1454d06a9969007c1cadd73b855c6f87e829d92801c063b11532bc56a28a0f93647a5e6ac94c59dec0434a4f0db794253054c524291e68f4939dd437ca2f

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vrrb2q3i.1zz.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Windows\Installer\MSI55A2.tmp

    Filesize

    208KB

    MD5

    0c8921bbcc37c6efd34faf44cf3b0cb5

    SHA1

    dcfa71246157edcd09eecaf9d4c5e360b24b3e49

    SHA256

    fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

    SHA512

    ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108

  • memory/2904-144-0x00000000074D0000-0x00000000074E1000-memory.dmp

    Filesize

    68KB

  • memory/2904-132-0x000000006E820000-0x000000006E86C000-memory.dmp

    Filesize

    304KB

  • memory/2904-131-0x00000000062C0000-0x000000000630C000-memory.dmp

    Filesize

    304KB

  • memory/2904-145-0x0000000007520000-0x0000000007534000-memory.dmp

    Filesize

    80KB

  • memory/2904-120-0x0000000005950000-0x0000000005CA4000-memory.dmp

    Filesize

    3.3MB

  • memory/2988-67-0x0000000010000000-0x000000001072E000-memory.dmp

    Filesize

    7.2MB

  • memory/4392-100-0x0000000006C40000-0x0000000006C5E000-memory.dmp

    Filesize

    120KB

  • memory/4392-108-0x0000000006FE0000-0x0000000006FF4000-memory.dmp

    Filesize

    80KB

  • memory/4392-89-0x0000000006050000-0x0000000006082000-memory.dmp

    Filesize

    200KB

  • memory/4392-88-0x0000000005AB0000-0x0000000005AFC000-memory.dmp

    Filesize

    304KB

  • memory/4392-101-0x0000000006C70000-0x0000000006D13000-memory.dmp

    Filesize

    652KB

  • memory/4392-102-0x00000000073F0000-0x0000000007A6A000-memory.dmp

    Filesize

    6.5MB

  • memory/4392-103-0x0000000006DA0000-0x0000000006DBA000-memory.dmp

    Filesize

    104KB

  • memory/4392-104-0x0000000006E10000-0x0000000006E1A000-memory.dmp

    Filesize

    40KB

  • memory/4392-105-0x0000000007030000-0x00000000070C6000-memory.dmp

    Filesize

    600KB

  • memory/4392-106-0x0000000006FA0000-0x0000000006FB1000-memory.dmp

    Filesize

    68KB

  • memory/4392-107-0x0000000006FD0000-0x0000000006FDE000-memory.dmp

    Filesize

    56KB

  • memory/4392-90-0x000000006E830000-0x000000006E87C000-memory.dmp

    Filesize

    304KB

  • memory/4392-109-0x00000000070F0000-0x000000000710A000-memory.dmp

    Filesize

    104KB

  • memory/4392-110-0x0000000007020000-0x0000000007028000-memory.dmp

    Filesize

    32KB

  • memory/4392-87-0x0000000005A70000-0x0000000005A8E000-memory.dmp

    Filesize

    120KB

  • memory/4392-85-0x00000000055B0000-0x0000000005904000-memory.dmp

    Filesize

    3.3MB

  • memory/4392-75-0x0000000004DE0000-0x0000000004E46000-memory.dmp

    Filesize

    408KB

  • memory/4392-74-0x0000000004D70000-0x0000000004DD6000-memory.dmp

    Filesize

    408KB

  • memory/4392-73-0x0000000004BD0000-0x0000000004BF2000-memory.dmp

    Filesize

    136KB

  • memory/4392-72-0x0000000004E80000-0x00000000054A8000-memory.dmp

    Filesize

    6.2MB

  • memory/4392-71-0x0000000000CF0000-0x0000000000D26000-memory.dmp

    Filesize

    216KB