Analysis

  • max time kernel
    28s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/07/2024, 02:45

General

  • Target
    29b828a2d4a02f4c3508e27714ceccea4e2d117dc0466671d334a6debd7a077b.exe
  • Size 5.3MB
  • Sample240722-c8qq2avfpd
  • SHA256 29b828a2d4a02f4c3508e27714ceccea4e2d117dc0466671d334a6debd7a077b
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • vidar

Version
  • 10.5

Botnet
  • b607a7a47e1a6ff266af835d50c6eaa5

C2
  • https://t.me/s41l0

  • https://steamcommunity.com/profiles/76561199743486170

Attributes
  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 YaBrowser/24.6.0.0 Safari/537.36

Extracted

Family
  • lumma

C2
  • https://applyzxcksdia.shop/api

Signatures

  • Detect Vidar Stealer 6 IoCs
  • Lumma Stealer

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

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 3 IoCs
  • Program crash 2 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\29b828a2d4a02f4c3508e27714ceccea4e2d117dc0466671d334a6debd7a077b.exe
    "C:\Users\Admin\AppData\Local\Temp\29b828a2d4a02f4c3508e27714ceccea4e2d117dc0466671d334a6debd7a077b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4680
    • 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:2980
      • C:\ProgramData\CAFBGHIDBG.exe
        "C:\ProgramData\CAFBGHIDBG.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1536
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
          4⤵
            PID:3276
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 1084
              5⤵
              • Program crash
              PID:2940
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 1068
              5⤵
              • Program crash
              PID:2544
        • C:\ProgramData\JKECGHCFIJ.exe
          "C:\ProgramData\JKECGHCFIJ.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4224
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
            4⤵
              PID:1604
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\FIDHIEBAAKJD" & exit
            3⤵
              PID:364
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 10
                4⤵
                • Delays execution with timeout.exe
                PID:4688
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3276 -ip 3276
          1⤵
            PID:380
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3276 -ip 3276
            1⤵
              PID:3064

            Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

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                  Downloads

                  CAFBGHIDBG.exe

                  • Path C:\ProgramData\CAFBGHIDBG.exe
                  • Size 4.3MB
                  • SHA256 394f23df8704f763b90149b09c73a1a841e8590541d33b98a6c7412ff9bfa27c
                  • MD5 SHA1 SHA512 SSDEEP

                  BGIIEG

                  • Path C:\ProgramData\GIEBFHCAKFBG\BGIIEG
                  • Size 160KB
                  • SHA256 e187946249cd390a3c1cf5d4e3b0d8f554f9acdc416bf4e7111fff217bb08855
                  • MD5 SHA1 SHA512 SSDEEP

                  JKECGHCFIJ.exe

                  • Path C:\ProgramData\JKECGHCFIJ.exe
                  • Size 4.3MB
                  • SHA256 c23b4a05be1b5587fe7d4283c7a99e44b695f486db8f225f5eabf9d7df75f37a
                  • MD5 SHA1 SHA512 SSDEEP

                  156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE
                  • Size 2KB
                  • SHA256 0029978501db8aa686b72d133ab1d6aaf5a469d06992784af3169b84b649fbcc
                  • MD5 SHA1 SHA512

                  223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
                  • Size 2KB
                  • SHA256 626ce3b93cece1434908a1b57ebd56b1eee36b1098f1acb9bd75b9a9585d2ccc
                  • MD5 SHA1 SHA512

                  EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D
                  • Size 1KB
                  • SHA256 53204ab5e7b4eefed7fc11b9a6cb9b989e106b6584414067f9388f4a789c8810
                  • MD5 SHA1 SHA512

                  156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE
                  • Size 458B
                  • SHA256 358ab33a0e4e67e68f200f4390f18042391e78001a26585f718e5b7f773431fb
                  • MD5 SHA1 SHA512

                  223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
                  • Size 450B
                  • SHA256 9837cf8d0566d71561a9e2070c7a19c3ad37cadcf94b5b7abf64c78ebc901063
                  • MD5 SHA1 SHA512

                  EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D
                  • Size 458B
                  • SHA256 91018fbc856306183cbc5f57687e226af6c15e27d4fefacdd13123d9fa8276e7
                  • MD5 SHA1 SHA512

                  memory/1536-147-0x0000000005CB0000-0x0000000005DE4000-memory.dmp

                  memory/1536-143-0x000000007340E000-0x000000007340F000-memory.dmp

                  memory/1536-144-0x0000000000D30000-0x000000000117C000-memory.dmp

                  memory/1536-145-0x0000000073400000-0x0000000073BB0000-memory.dmp

                  memory/1536-146-0x0000000005B60000-0x0000000005CA8000-memory.dmp

                  memory/1536-211-0x0000000073400000-0x0000000073BB0000-memory.dmp

                  memory/2980-215-0x0000000000400000-0x0000000000640000-memory.dmp

                  memory/2980-293-0x0000000000400000-0x0000000000640000-memory.dmp

                  memory/2980-71-0x0000000000400000-0x0000000000640000-memory.dmp

                  memory/2980-84-0x0000000000400000-0x0000000000640000-memory.dmp

                  memory/2980-66-0x0000000000400000-0x0000000000640000-memory.dmp

                  memory/2980-68-0x0000000000400000-0x0000000000640000-memory.dmp

                  memory/4224-225-0x0000000000C90000-0x00000000010F0000-memory.dmp

                  memory/4224-226-0x0000000005A30000-0x0000000005B5E000-memory.dmp

                  memory/4224-227-0x0000000005B70000-0x0000000005C8A000-memory.dmp

                  memory/4680-50-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-37-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-25-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-23-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-21-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-19-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-17-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-15-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-13-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-11-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-9-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-7-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-6-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-69-0x0000000074450000-0x0000000074C00000-memory.dmp

                  memory/4680-29-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-31-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-33-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-72-0x0000000074450000-0x0000000074C00000-memory.dmp

                  memory/4680-35-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-27-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-39-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-41-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-45-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-47-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-0-0x000000007445E000-0x000000007445F000-memory.dmp

                  memory/4680-51-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-54-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-55-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-57-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-59-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-62-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-63-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-65-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-43-0x0000000005C10000-0x0000000005C25000-memory.dmp

                  memory/4680-5-0x0000000005C10000-0x0000000005C2C000-memory.dmp

                  memory/4680-4-0x0000000005FB0000-0x000000000613A000-memory.dmp

                  memory/4680-3-0x0000000074450000-0x0000000074C00000-memory.dmp

                  memory/4680-2-0x0000000005D10000-0x0000000005DAC000-memory.dmp

                  memory/4680-1-0x0000000000CF0000-0x000000000123C000-memory.dmp