Analysis

  • max time kernel
    108s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 22:22

General

  • Target

    4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97.exe

  • Size

    1.2MB

  • MD5

    3e08508a662892184dde6f0be1c2c8a4

  • SHA1

    73aab66b7bc7ead71999b99c0a3575dcf38fc752

  • SHA256

    4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97

  • SHA512

    c38239f62e500d2b59b583c3a6dfa821206c1501a10d732c1b052c512b3d296e1397328d3f30401e0ac794ab2c65727a85364ce43523a38450ae82725b6cb3e8

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\8506BBE7FF\Log.txt

Family

masslogger

Ransom Note
<|| v2.1.0.0 ||> User Name: Admin IP: 154.61.71.13 Location: United States Windows OS: Microsoft Windows 7 Ultimate 64bit Windows Serial Key: D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/25/2022 12:28:02 AM MassLogger Started: 5/25/2022 12:27:56 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> Disabled <|| Window Searcher ||> Disabled <|| Bot Killer ||> Disabled <|| Search And Upload ||> Path: C:\Users\Admin Files count: 8 <|| Telegram Desktop ||> Not Installed <|| Pidgin ||> Not Installed <|| FileZilla ||> Not Installed <|| Discord Tokken ||> Not Installed <|| NordVPN ||> Not Installed <|| Outlook ||> Not Installed <|| FoxMail ||> Not Installed <|| Thunderbird ||> Not Installed <|| FireFox ||> Not Found <|| QQ Browser ||> Not Installed <|| Chromium Recovery ||> Not Installed or Not Found <|| Keylogger And Clipboard ||> NA

Signatures

  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • Modifies visibility of file extensions in Explorer 2 TTPs
  • Executes dropped EXE 7 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 7 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 35 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97.exe
    "C:\Users\Admin\AppData\Local\Temp\4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1708
    • C:\Users\Admin\AppData\Local\Temp\4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97.exe
      "C:\Users\Admin\AppData\Local\Temp\4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1552
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn vlc.exe /tr '"C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe"' & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1052
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /create /f /sc onlogon /rl highest /tn vlc.exe /tr '"C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe"'
          4⤵
          • Creates scheduled task(s)
          PID:1172
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp2C20.tmp.bat""
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:648
        • C:\Windows\SysWOW64\timeout.exe
          timeout 3
          4⤵
          • Delays execution with timeout.exe
          PID:604
        • C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
          "C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1692
          • C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
            "C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe"
            5⤵
            • Executes dropped EXE
            PID:1896
          • C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
            "C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe"
            5⤵
            • Executes dropped EXE
            PID:1080
          • C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
            "C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe"
            5⤵
            • Executes dropped EXE
            PID:1324
          • C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
            "C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe"
            5⤵
            • Executes dropped EXE
            PID:1548
          • C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
            "C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe"
            5⤵
            • Executes dropped EXE
            PID:932
          • C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
            "C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe"
            5⤵
            • Executes dropped EXE
            • Checks computer location settings
            • Accesses Microsoft Outlook profiles
            • Suspicious behavior: AddClipboardFormatListener
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • outlook_office_path
            • outlook_win_path
            PID:556

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Hidden Files and Directories

1
T1158

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Hidden Files and Directories

1
T1158

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp2C20.tmp.bat
    Filesize

    156B

    MD5

    e9f96ec5e402bc933ff13260b46a5f38

    SHA1

    c9bff7987ddbcbece8120285df69ff3a19b4e2a7

    SHA256

    501da14728b94d7f3612618af201df0b29275965cff836453a82ba302db95ba5

    SHA512

    03c30736791fea46a2b49b5eb71c13f88a4e7bf4fecbbb997ef9fac72479167e2fefda6dfa02699a32d12095a9a26edaa0b2fe74d1da35f612b5e214c439d50f

  • C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
    Filesize

    1.2MB

    MD5

    3e08508a662892184dde6f0be1c2c8a4

    SHA1

    73aab66b7bc7ead71999b99c0a3575dcf38fc752

    SHA256

    4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97

    SHA512

    c38239f62e500d2b59b583c3a6dfa821206c1501a10d732c1b052c512b3d296e1397328d3f30401e0ac794ab2c65727a85364ce43523a38450ae82725b6cb3e8

  • C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
    Filesize

    1.2MB

    MD5

    3e08508a662892184dde6f0be1c2c8a4

    SHA1

    73aab66b7bc7ead71999b99c0a3575dcf38fc752

    SHA256

    4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97

    SHA512

    c38239f62e500d2b59b583c3a6dfa821206c1501a10d732c1b052c512b3d296e1397328d3f30401e0ac794ab2c65727a85364ce43523a38450ae82725b6cb3e8

  • C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
    Filesize

    1.2MB

    MD5

    3e08508a662892184dde6f0be1c2c8a4

    SHA1

    73aab66b7bc7ead71999b99c0a3575dcf38fc752

    SHA256

    4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97

    SHA512

    c38239f62e500d2b59b583c3a6dfa821206c1501a10d732c1b052c512b3d296e1397328d3f30401e0ac794ab2c65727a85364ce43523a38450ae82725b6cb3e8

  • C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
    Filesize

    1.2MB

    MD5

    3e08508a662892184dde6f0be1c2c8a4

    SHA1

    73aab66b7bc7ead71999b99c0a3575dcf38fc752

    SHA256

    4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97

    SHA512

    c38239f62e500d2b59b583c3a6dfa821206c1501a10d732c1b052c512b3d296e1397328d3f30401e0ac794ab2c65727a85364ce43523a38450ae82725b6cb3e8

  • C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
    Filesize

    1.2MB

    MD5

    3e08508a662892184dde6f0be1c2c8a4

    SHA1

    73aab66b7bc7ead71999b99c0a3575dcf38fc752

    SHA256

    4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97

    SHA512

    c38239f62e500d2b59b583c3a6dfa821206c1501a10d732c1b052c512b3d296e1397328d3f30401e0ac794ab2c65727a85364ce43523a38450ae82725b6cb3e8

  • C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
    Filesize

    1.2MB

    MD5

    3e08508a662892184dde6f0be1c2c8a4

    SHA1

    73aab66b7bc7ead71999b99c0a3575dcf38fc752

    SHA256

    4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97

    SHA512

    c38239f62e500d2b59b583c3a6dfa821206c1501a10d732c1b052c512b3d296e1397328d3f30401e0ac794ab2c65727a85364ce43523a38450ae82725b6cb3e8

  • C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
    Filesize

    1.2MB

    MD5

    3e08508a662892184dde6f0be1c2c8a4

    SHA1

    73aab66b7bc7ead71999b99c0a3575dcf38fc752

    SHA256

    4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97

    SHA512

    c38239f62e500d2b59b583c3a6dfa821206c1501a10d732c1b052c512b3d296e1397328d3f30401e0ac794ab2c65727a85364ce43523a38450ae82725b6cb3e8

  • C:\Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
    Filesize

    1.2MB

    MD5

    3e08508a662892184dde6f0be1c2c8a4

    SHA1

    73aab66b7bc7ead71999b99c0a3575dcf38fc752

    SHA256

    4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97

    SHA512

    c38239f62e500d2b59b583c3a6dfa821206c1501a10d732c1b052c512b3d296e1397328d3f30401e0ac794ab2c65727a85364ce43523a38450ae82725b6cb3e8

  • \Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
    Filesize

    1.2MB

    MD5

    3e08508a662892184dde6f0be1c2c8a4

    SHA1

    73aab66b7bc7ead71999b99c0a3575dcf38fc752

    SHA256

    4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97

    SHA512

    c38239f62e500d2b59b583c3a6dfa821206c1501a10d732c1b052c512b3d296e1397328d3f30401e0ac794ab2c65727a85364ce43523a38450ae82725b6cb3e8

  • \Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
    Filesize

    1.2MB

    MD5

    3e08508a662892184dde6f0be1c2c8a4

    SHA1

    73aab66b7bc7ead71999b99c0a3575dcf38fc752

    SHA256

    4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97

    SHA512

    c38239f62e500d2b59b583c3a6dfa821206c1501a10d732c1b052c512b3d296e1397328d3f30401e0ac794ab2c65727a85364ce43523a38450ae82725b6cb3e8

  • \Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
    Filesize

    1.2MB

    MD5

    3e08508a662892184dde6f0be1c2c8a4

    SHA1

    73aab66b7bc7ead71999b99c0a3575dcf38fc752

    SHA256

    4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97

    SHA512

    c38239f62e500d2b59b583c3a6dfa821206c1501a10d732c1b052c512b3d296e1397328d3f30401e0ac794ab2c65727a85364ce43523a38450ae82725b6cb3e8

  • \Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
    Filesize

    1.2MB

    MD5

    3e08508a662892184dde6f0be1c2c8a4

    SHA1

    73aab66b7bc7ead71999b99c0a3575dcf38fc752

    SHA256

    4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97

    SHA512

    c38239f62e500d2b59b583c3a6dfa821206c1501a10d732c1b052c512b3d296e1397328d3f30401e0ac794ab2c65727a85364ce43523a38450ae82725b6cb3e8

  • \Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
    Filesize

    1.2MB

    MD5

    3e08508a662892184dde6f0be1c2c8a4

    SHA1

    73aab66b7bc7ead71999b99c0a3575dcf38fc752

    SHA256

    4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97

    SHA512

    c38239f62e500d2b59b583c3a6dfa821206c1501a10d732c1b052c512b3d296e1397328d3f30401e0ac794ab2c65727a85364ce43523a38450ae82725b6cb3e8

  • \Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
    Filesize

    1.2MB

    MD5

    3e08508a662892184dde6f0be1c2c8a4

    SHA1

    73aab66b7bc7ead71999b99c0a3575dcf38fc752

    SHA256

    4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97

    SHA512

    c38239f62e500d2b59b583c3a6dfa821206c1501a10d732c1b052c512b3d296e1397328d3f30401e0ac794ab2c65727a85364ce43523a38450ae82725b6cb3e8

  • \Users\Admin\AppData\Roaming\VideoLAN\vlc.exe
    Filesize

    1.2MB

    MD5

    3e08508a662892184dde6f0be1c2c8a4

    SHA1

    73aab66b7bc7ead71999b99c0a3575dcf38fc752

    SHA256

    4a2b08708e7619550eefdfa23c06d079abe4277ef159152f2cb1b9aa00ea6f97

    SHA512

    c38239f62e500d2b59b583c3a6dfa821206c1501a10d732c1b052c512b3d296e1397328d3f30401e0ac794ab2c65727a85364ce43523a38450ae82725b6cb3e8

  • memory/556-109-0x0000000004CD5000-0x0000000004CE6000-memory.dmp
    Filesize

    68KB

  • memory/556-108-0x0000000004480000-0x0000000004494000-memory.dmp
    Filesize

    80KB

  • memory/556-106-0x0000000000400000-0x00000000004FE000-memory.dmp
    Filesize

    1016KB

  • memory/556-104-0x0000000000400000-0x00000000004FE000-memory.dmp
    Filesize

    1016KB

  • memory/556-101-0x000000000049406E-mapping.dmp
  • memory/604-76-0x0000000000000000-mapping.dmp
  • memory/648-74-0x0000000000000000-mapping.dmp
  • memory/1052-73-0x0000000000000000-mapping.dmp
  • memory/1172-77-0x0000000000000000-mapping.dmp
  • memory/1552-62-0x0000000000400000-0x00000000004FE000-memory.dmp
    Filesize

    1016KB

  • memory/1552-72-0x0000000000345000-0x0000000000356000-memory.dmp
    Filesize

    68KB

  • memory/1552-69-0x00000000006B0000-0x00000000006F4000-memory.dmp
    Filesize

    272KB

  • memory/1552-60-0x0000000000400000-0x00000000004FE000-memory.dmp
    Filesize

    1016KB

  • memory/1552-64-0x000000000049406E-mapping.dmp
  • memory/1552-58-0x0000000000400000-0x00000000004FE000-memory.dmp
    Filesize

    1016KB

  • memory/1552-70-0x00000000758D1000-0x00000000758D3000-memory.dmp
    Filesize

    8KB

  • memory/1552-57-0x0000000000400000-0x00000000004FE000-memory.dmp
    Filesize

    1016KB

  • memory/1552-63-0x0000000000400000-0x00000000004FE000-memory.dmp
    Filesize

    1016KB

  • memory/1552-71-0x00000000006F0000-0x0000000000704000-memory.dmp
    Filesize

    80KB

  • memory/1552-68-0x0000000000400000-0x00000000004FE000-memory.dmp
    Filesize

    1016KB

  • memory/1552-66-0x0000000000400000-0x00000000004FE000-memory.dmp
    Filesize

    1016KB

  • memory/1692-80-0x0000000000000000-mapping.dmp
  • memory/1692-82-0x0000000000030000-0x0000000000168000-memory.dmp
    Filesize

    1.2MB

  • memory/1708-55-0x0000000000AB0000-0x0000000000B40000-memory.dmp
    Filesize

    576KB

  • memory/1708-54-0x0000000001080000-0x00000000011B8000-memory.dmp
    Filesize

    1.2MB

  • memory/1708-56-0x0000000004B70000-0x0000000004C6E000-memory.dmp
    Filesize

    1016KB