Analysis

  • max time kernel
    142s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/11/2024, 15:52

General

  • Target

    Bursaderiosb_Sorgu_04.11.24.doc.exe

  • Size

    791KB

  • MD5

    bf641cbd10ecb47360eb5f51aa1e18dd

  • SHA1

    8cf79b4e1c56efa27686e75be6763d1626c52418

  • SHA256

    cdcc9af94476ea2f08b7a948e5293405cf65e87a2496f3fd7743a35128bca523

  • SHA512

    00b679d1afbb028951af5e0258d44ee9c59a38c6824078eb22cd606e146c4b6b60fdc8394cb1415beea6a9b78d8564ec0ae24429513452c907ec2f834d12b880

  • SSDEEP

    24576:FY5/fh8ztYct9XR8UdtCVK9V7U3dMuZBBzjwYMXj3:K2tJ8UTCE7YJwHj

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    kashmirestore.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    c%P+6,(]YFvP

Extracted

Family

vipkeylogger

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Vipkeylogger family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bursaderiosb_Sorgu_04.11.24.doc.exe
    "C:\Users\Admin\AppData\Local\Temp\Bursaderiosb_Sorgu_04.11.24.doc.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4932
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Bursaderiosb_Sorgu_04.11.24.doc.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2880
    • C:\Users\Admin\AppData\Local\Temp\Bursaderiosb_Sorgu_04.11.24.doc.exe
      "C:\Users\Admin\AppData\Local\Temp\Bursaderiosb_Sorgu_04.11.24.doc.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4880

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Bursaderiosb_Sorgu_04.11.24.doc.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_odtjkey3.3vr.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/2880-51-0x0000000007C30000-0x0000000007C3A000-memory.dmp

    Filesize

    40KB

  • memory/2880-54-0x0000000007DF0000-0x0000000007DFE000-memory.dmp

    Filesize

    56KB

  • memory/2880-53-0x0000000007DC0000-0x0000000007DD1000-memory.dmp

    Filesize

    68KB

  • memory/2880-50-0x0000000007BC0000-0x0000000007BDA000-memory.dmp

    Filesize

    104KB

  • memory/2880-49-0x0000000008210000-0x000000000888A000-memory.dmp

    Filesize

    6.5MB

  • memory/2880-48-0x0000000007890000-0x0000000007933000-memory.dmp

    Filesize

    652KB

  • memory/2880-61-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/2880-58-0x0000000007EE0000-0x0000000007EE8000-memory.dmp

    Filesize

    32KB

  • memory/2880-57-0x0000000007F00000-0x0000000007F1A000-memory.dmp

    Filesize

    104KB

  • memory/2880-47-0x0000000006ED0000-0x0000000006EEE000-memory.dmp

    Filesize

    120KB

  • memory/2880-55-0x0000000007E00000-0x0000000007E14000-memory.dmp

    Filesize

    80KB

  • memory/2880-37-0x0000000070090000-0x00000000700DC000-memory.dmp

    Filesize

    304KB

  • memory/2880-36-0x0000000006E70000-0x0000000006EA2000-memory.dmp

    Filesize

    200KB

  • memory/2880-17-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/2880-16-0x00000000052D0000-0x0000000005306000-memory.dmp

    Filesize

    216KB

  • memory/2880-35-0x0000000006DE0000-0x0000000006E2C000-memory.dmp

    Filesize

    304KB

  • memory/2880-19-0x0000000005990000-0x0000000005FB8000-memory.dmp

    Filesize

    6.2MB

  • memory/2880-20-0x00000000058D0000-0x00000000058F2000-memory.dmp

    Filesize

    136KB

  • memory/2880-22-0x0000000006220000-0x0000000006286000-memory.dmp

    Filesize

    408KB

  • memory/2880-23-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/2880-33-0x0000000006290000-0x00000000065E4000-memory.dmp

    Filesize

    3.3MB

  • memory/2880-21-0x00000000060C0000-0x0000000006126000-memory.dmp

    Filesize

    408KB

  • memory/2880-52-0x0000000007E40000-0x0000000007ED6000-memory.dmp

    Filesize

    600KB

  • memory/2880-34-0x0000000006890000-0x00000000068AE000-memory.dmp

    Filesize

    120KB

  • memory/4880-18-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/4880-56-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/4880-14-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/4880-11-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/4880-62-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/4880-63-0x0000000006BB0000-0x0000000006D72000-memory.dmp

    Filesize

    1.8MB

  • memory/4880-64-0x0000000006A30000-0x0000000006A80000-memory.dmp

    Filesize

    320KB

  • memory/4880-65-0x00000000072B0000-0x00000000077DC000-memory.dmp

    Filesize

    5.2MB

  • memory/4932-3-0x0000000005910000-0x00000000059A2000-memory.dmp

    Filesize

    584KB

  • memory/4932-0-0x000000007466E000-0x000000007466F000-memory.dmp

    Filesize

    4KB

  • memory/4932-1-0x0000000000E20000-0x0000000000EEC000-memory.dmp

    Filesize

    816KB

  • memory/4932-15-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/4932-2-0x0000000005DE0000-0x0000000006384000-memory.dmp

    Filesize

    5.6MB

  • memory/4932-10-0x00000000032B0000-0x000000000333C000-memory.dmp

    Filesize

    560KB

  • memory/4932-9-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/4932-8-0x000000007466E000-0x000000007466F000-memory.dmp

    Filesize

    4KB

  • memory/4932-7-0x0000000005DC0000-0x0000000005DDC000-memory.dmp

    Filesize

    112KB

  • memory/4932-6-0x0000000005BB0000-0x0000000005C4C000-memory.dmp

    Filesize

    624KB

  • memory/4932-5-0x0000000074660000-0x0000000074E10000-memory.dmp

    Filesize

    7.7MB

  • memory/4932-4-0x0000000005900000-0x000000000590A000-memory.dmp

    Filesize

    40KB