Resubmissions

08/03/2023, 04:02

230308-el2acsdh6510

08/03/2023, 03:53

230308-ef443adh3210

Analysis

  • max time kernel
    65s
  • max time network
    182s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    08/03/2023, 03:53

General

  • Target
    10d5b999c6a1d09f32c72905ee478b23cf3eb01a96aa010395357579330aa08f.exe
  • Size 6.0MB
  • Sample230308-ef443adh32
  • 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:3032
    • 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:4148
      • 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:4448
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 6
          4⤵
          • Delays execution with timeout.exe
          PID:4440
    • 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:1468
    • 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:4752

    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/1468-195-0x0000000004D70000-0x0000000004E7A000-memory.dmp

          memory/1468-205-0x0000000005F90000-0x0000000005FF6000-memory.dmp

          memory/1468-200-0x0000000005040000-0x0000000005050000-memory.dmp

          memory/1468-199-0x0000000004E80000-0x0000000004ECB000-memory.dmp

          memory/1468-210-0x0000000005040000-0x0000000005050000-memory.dmp

          memory/1468-209-0x00000000073D0000-0x00000000078FC000-memory.dmp

          memory/1468-198-0x0000000004D00000-0x0000000004D3E000-memory.dmp

          memory/1468-208-0x0000000006CD0000-0x0000000006E92000-memory.dmp

          memory/1468-197-0x0000000004CA0000-0x0000000004CB2000-memory.dmp

          memory/1468-194-0x00000000051E0000-0x00000000057E6000-memory.dmp

          memory/1468-192-0x0000000000810000-0x0000000000842000-memory.dmp

          memory/1468-193-0x0000000000810000-0x0000000000842000-memory.dmp

          memory/3032-121-0x0000000034450000-0x0000000034976000-memory.dmp

          memory/3032-123-0x0000000034450000-0x0000000034976000-memory.dmp

          memory/3032-196-0x0000000034450000-0x0000000034976000-memory.dmp

          memory/3032-122-0x0000000034450000-0x0000000034976000-memory.dmp

          memory/3032-120-0x0000000032040000-0x0000000032537000-memory.dmp

          memory/3032-212-0x0000000034450000-0x0000000034976000-memory.dmp

          memory/3032-124-0x0000000034450000-0x0000000034976000-memory.dmp

          memory/4148-138-0x0000000000500000-0x0000000000571000-memory.dmp

          memory/4148-131-0x0000000000500000-0x0000000000571000-memory.dmp

          memory/4148-223-0x0000000000500000-0x0000000000571000-memory.dmp

          memory/4148-222-0x0000000000500000-0x0000000000571000-memory.dmp

          memory/4148-132-0x0000000000500000-0x0000000000571000-memory.dmp

          memory/4148-135-0x0000000000500000-0x0000000000571000-memory.dmp

          memory/4148-151-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          memory/4752-207-0x0000000005170000-0x0000000005180000-memory.dmp

          memory/4752-206-0x0000000005100000-0x000000000510A000-memory.dmp

          memory/4752-201-0x0000000000400000-0x000000000040A000-memory.dmp

          memory/4752-202-0x0000000000400000-0x000000000040A000-memory.dmp

          memory/4752-221-0x0000000005170000-0x0000000005180000-memory.dmp

          memory/4752-204-0x0000000005060000-0x00000000050F2000-memory.dmp

          memory/4752-203-0x0000000005680000-0x0000000005B7E000-memory.dmp