Analysis

  • max time kernel
    129s
  • max time network
    306s
  • platform
    windows10-1703_x64
  • resource
    win10-20240611-en
  • resource tags

    arch:x64arch:x86image:win10-20240611-enlocale:en-usos:windows10-1703-x64system
  • submitted
    04-07-2024 22:43

General

  • Target

    a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe

  • Size

    4.3MB

  • MD5

    67cef2b94174d0883a8e8b9ad9c217c7

  • SHA1

    d674a6454b03d5190ea685112e68a6604eabfc39

  • SHA256

    a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7

  • SHA512

    bd335514641c23f96063c92783bcc2e607c7765705aafa2e742b631c102c08704b1bc77ba61dce7f2267abd5e0e4a30653a50179f86689ecf348f5eb0057ea3c

  • SSDEEP

    49152:WgMCMqzvDxEHJKquC8nlPCx0jdt8not+bgZV014po/8QNT9Fr1:wGdlbInoM0bBO5H

Malware Config

Extracted

Family

vidar

C2

https://t.me/g067n

https://steamcommunity.com/profiles/76561199707802586

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Extracted

Family

lumma

C2

https://civilizzzationo.shop/api

Signatures

  • Detect Vidar Stealer 3 IoCs
  • Lumma Stealer

    An infostealer written in C++ first seen in August 2022.

  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 2 IoCs
  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe
    "C:\Users\Admin\AppData\Local\Temp\a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1548
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2664
      • C:\ProgramData\CFBAKKJDBK.exe
        "C:\ProgramData\CFBAKKJDBK.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:164
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4860
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 164 -s 272
          4⤵
          • Program crash
          PID:4164
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\EGHJKJKKJDHI" & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4800
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • Delays execution with timeout.exe
          PID:4300

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\CFBAKKJDBK.exe

    Filesize

    937KB

    MD5

    168c5908924803d268d26965c32a5620

    SHA1

    9e0e2dc9c7e931c4ee860c32d83711c433f7b1a3

    SHA256

    2fd72d0d0fbc053a53adee5d9ec6cffde3fb5a3c6ba0c0490e24552b264d5449

    SHA512

    749f0e4da8d6fde35b53e769b0b594c2e63835f970eedc54c8c15889863811b5fb296650ae9f5e255bafdd4b942ad3434a60c48e05f1283820c378d30645f1c1

  • memory/1548-47-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-23-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-3-0x0000000005920000-0x000000000592A000-memory.dmp

    Filesize

    40KB

  • memory/1548-0-0x00007FF982870000-0x00007FF982A4B000-memory.dmp

    Filesize

    1.9MB

  • memory/1548-5-0x00000000059E0000-0x00000000059FC000-memory.dmp

    Filesize

    112KB

  • memory/1548-9-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-19-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-35-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-37-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-65-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-63-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-49-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-6-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-61-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-7-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-45-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-57-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-55-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-53-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-51-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-1-0x0000000000D10000-0x0000000001162000-memory.dmp

    Filesize

    4.3MB

  • memory/1548-4-0x0000000005B30000-0x0000000005C3C000-memory.dmp

    Filesize

    1.0MB

  • memory/1548-59-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-43-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-41-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-39-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-33-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-31-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-29-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-27-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-25-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-2-0x0000000005A60000-0x0000000005AFC000-memory.dmp

    Filesize

    624KB

  • memory/1548-21-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-17-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-15-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-13-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/1548-11-0x00000000059E0000-0x00000000059F5000-memory.dmp

    Filesize

    84KB

  • memory/2664-70-0x00007FF982870000-0x00007FF982A4B000-memory.dmp

    Filesize

    1.9MB

  • memory/2664-66-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2664-83-0x00007FF982870000-0x00007FF982A4B000-memory.dmp

    Filesize

    1.9MB

  • memory/2664-90-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2664-68-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2664-135-0x00007FF982870000-0x00007FF982A4B000-memory.dmp

    Filesize

    1.9MB