Analysis

  • max time kernel
    105s
  • max time network
    178s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    05/03/2023, 04:47

General

  • Target
    10d5b999c6a1d09f32c72905ee478b23cf3eb01a96aa010395357579330aa08f.exe
  • Size 6.0MB
  • Sample230305-feqeysfb5t
  • SHA256 10d5b999c6a1d09f32c72905ee478b23cf3eb01a96aa010395357579330aa08f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • redline

Botnet
  • 1

C2
  • 176.113.115.220:80

Attributes
  • auth_value

    b6c86adb7106e9ee7247628f59e06830

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Loads dropped DLL 2 IoCs
  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 3 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
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\10d5b999c6a1d09f32c72905ee478b23cf3eb01a96aa010395357579330aa08f.exe
    "C:\Users\Admin\AppData\Local\Temp\10d5b999c6a1d09f32c72905ee478b23cf3eb01a96aa010395357579330aa08f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:3192
    • C:\Windows\Microsoft.NET\assembly\GAC_32\MSBuild\v4.0_4.0.0.0__b03f5f7f11d50a3a\MSBuild.exe
      "C:\Windows\Microsoft.NET\assembly\GAC_32\MSBuild\v4.0_4.0.0.0__b03f5f7f11d50a3a\MSBuild.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5012
    • C:\Windows\Microsoft.NET\assembly\GAC_32\MSBuild\v4.0_4.0.0.0__b03f5f7f11d50a3a\MSBuild.exe
      "C:\Windows\Microsoft.NET\assembly\GAC_32\MSBuild\v4.0_4.0.0.0__b03f5f7f11d50a3a\MSBuild.exe"
      2⤵
        PID:2152
      • C:\Windows\Microsoft.NET\assembly\GAC_32\MSBuild\v4.0_4.0.0.0__b03f5f7f11d50a3a\MSBuild.exe
        "C:\Windows\Microsoft.NET\assembly\GAC_32\MSBuild\v4.0_4.0.0.0__b03f5f7f11d50a3a\MSBuild.exe"
        2⤵
        • Loads dropped DLL
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2672
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Windows\Microsoft.NET\assembly\GAC_32\MSBuild\v4.0_4.0.0.0__b03f5f7f11d50a3a\MSBuild.exe" & exit
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4960
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 6
            4⤵
            • Delays execution with timeout.exe
            PID:3872

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          mozglue.dll

          • Path \ProgramData\mozglue.dll
          • Size 593KB
          • SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
          • MD5 SHA1 SHA512 SSDEEP

          nss3.dll

          • Path \ProgramData\nss3.dll
          • Size 2.0MB
          • SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
          • MD5 SHA1 SHA512 SSDEEP

          memory/2152-137-0x0000000000610000-0x000000000061A000-memory.dmp

          memory/2152-157-0x0000000004AD0000-0x0000000004AE0000-memory.dmp

          memory/2152-143-0x0000000004AB0000-0x0000000004ABA000-memory.dmp

          memory/2152-142-0x0000000004AD0000-0x0000000004AE0000-memory.dmp

          memory/2152-141-0x0000000004AE0000-0x0000000004B72000-memory.dmp

          memory/2152-140-0x0000000004FE0000-0x00000000054DE000-memory.dmp

          memory/2152-138-0x0000000000610000-0x000000000061A000-memory.dmp

          memory/2672-148-0x0000000000160000-0x00000000001D1000-memory.dmp

          memory/2672-171-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          memory/2672-222-0x0000000000160000-0x00000000001D1000-memory.dmp

          memory/2672-221-0x0000000000160000-0x00000000001D1000-memory.dmp

          memory/2672-149-0x0000000000160000-0x00000000001D1000-memory.dmp

          memory/2672-152-0x0000000000160000-0x00000000001D1000-memory.dmp

          memory/2672-155-0x0000000000160000-0x00000000001D1000-memory.dmp

          memory/3192-119-0x00000000347E0000-0x0000000034D06000-memory.dmp

          memory/3192-158-0x00000000347E0000-0x0000000034D06000-memory.dmp

          memory/3192-121-0x00000000347E0000-0x0000000034D06000-memory.dmp

          memory/3192-122-0x00000000347E0000-0x0000000034D06000-memory.dmp

          memory/3192-139-0x00000000347E0000-0x0000000034D06000-memory.dmp

          memory/3192-120-0x00000000347E0000-0x0000000034D06000-memory.dmp

          memory/3192-118-0x0000000032390000-0x0000000032887000-memory.dmp

          memory/5012-131-0x0000000005920000-0x0000000005F26000-memory.dmp

          memory/5012-147-0x0000000005720000-0x0000000005730000-memory.dmp

          memory/5012-146-0x0000000007920000-0x0000000007E4C000-memory.dmp

          memory/5012-145-0x0000000007220000-0x00000000073E2000-memory.dmp

          memory/5012-144-0x0000000006560000-0x00000000065C6000-memory.dmp

          memory/5012-129-0x0000000000400000-0x0000000000432000-memory.dmp

          memory/5012-130-0x0000000000400000-0x0000000000432000-memory.dmp

          memory/5012-134-0x0000000005420000-0x000000000545E000-memory.dmp

          memory/5012-132-0x0000000005490000-0x000000000559A000-memory.dmp

          memory/5012-133-0x00000000053C0000-0x00000000053D2000-memory.dmp

          memory/5012-136-0x00000000055A0000-0x00000000055EB000-memory.dmp

          memory/5012-135-0x0000000005720000-0x0000000005730000-memory.dmp