Analysis

  • max time kernel
    30s
  • max time network
    111s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    05-05-2021 19:06

General

  • Target

    0094e9329691b02305afeb49b73ed31f.exe

  • Size

    2.4MB

  • MD5

    0094e9329691b02305afeb49b73ed31f

  • SHA1

    e38cd5b500ee6db18594fcffb9e7860911340daf

  • SHA256

    50d2b07713cb4e000c40255a46ad201c50d8f8c804f8c227ec1fe74451562039

  • SHA512

    2a38bdf3c51ac9b071f49d35e8a2d0d3f95452d22b5518475f6dfc3f6f772c924545c1893269a292d79288ef75946b6bdbc84170acac2016098792424f9c91c6

Malware Config

Extracted

Family

redline

C2

5.188.118.35:19651

Signatures

  • RedLine

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

  • RedLine Payload 2 IoCs
  • Turns off Windows Defender SpyNet reporting 2 TTPs
  • Windows security bypass 2 TTPs
  • Nirsoft 3 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Windows security modification 2 TTPs 10 IoCs
  • 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 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0094e9329691b02305afeb49b73ed31f.exe
    "C:\Users\Admin\AppData\Local\Temp\0094e9329691b02305afeb49b73ed31f.exe"
    1⤵
    • Windows security modification
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1108
    • C:\Users\Admin\AppData\Local\Temp\868cb757-17b1-4971-98cc-bb4702b2f60b\AdvancedRun.exe
      "C:\Users\Admin\AppData\Local\Temp\868cb757-17b1-4971-98cc-bb4702b2f60b\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\868cb757-17b1-4971-98cc-bb4702b2f60b\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:488
      • C:\Users\Admin\AppData\Local\Temp\868cb757-17b1-4971-98cc-bb4702b2f60b\AdvancedRun.exe
        "C:\Users\Admin\AppData\Local\Temp\868cb757-17b1-4971-98cc-bb4702b2f60b\AdvancedRun.exe" /SpecialRun 4101d8 488
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1664
    • 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\0094e9329691b02305afeb49b73ed31f.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3332
    • C:\Users\Admin\AppData\Local\Temp\0094e9329691b02305afeb49b73ed31f.exe
      "C:\Users\Admin\AppData\Local\Temp\0094e9329691b02305afeb49b73ed31f.exe"
      2⤵
        PID:3144
      • C:\Users\Admin\AppData\Local\Temp\0094e9329691b02305afeb49b73ed31f.exe
        "C:\Users\Admin\AppData\Local\Temp\0094e9329691b02305afeb49b73ed31f.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:192

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Disabling Security Tools

    3
    T1089

    Modify Registry

    3
    T1112

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    1
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\0094e9329691b02305afeb49b73ed31f.exe.log
      MD5

      5cfb142c4cf78ed672ef88a8126dd1d3

      SHA1

      5354dce29bf14fe1afb41229858d6b46288e605c

      SHA256

      54b906a94d59917075ee754d4309cf516422156f48734004a3d7e7a44b981585

      SHA512

      70fa4e120bb03417e6260e0d4b65bcadb6a8ccd33588a2f95803ed9a8a58190debf645db57a849db158de69e7eaea593fd88f0d5bdb0d292e6521f8b6bf4cd35

    • C:\Users\Admin\AppData\Local\Temp\868cb757-17b1-4971-98cc-bb4702b2f60b\AdvancedRun.exe
      MD5

      17fc12902f4769af3a9271eb4e2dacce

      SHA1

      9a4a1581cc3971579574f837e110f3bd6d529dab

      SHA256

      29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

      SHA512

      036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

    • C:\Users\Admin\AppData\Local\Temp\868cb757-17b1-4971-98cc-bb4702b2f60b\AdvancedRun.exe
      MD5

      17fc12902f4769af3a9271eb4e2dacce

      SHA1

      9a4a1581cc3971579574f837e110f3bd6d529dab

      SHA256

      29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

      SHA512

      036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

    • C:\Users\Admin\AppData\Local\Temp\868cb757-17b1-4971-98cc-bb4702b2f60b\AdvancedRun.exe
      MD5

      17fc12902f4769af3a9271eb4e2dacce

      SHA1

      9a4a1581cc3971579574f837e110f3bd6d529dab

      SHA256

      29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

      SHA512

      036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

    • memory/192-164-0x0000000000400000-0x000000000041C000-memory.dmp
      Filesize

      112KB

    • memory/192-178-0x0000000000416386-mapping.dmp
    • memory/192-187-0x0000000005760000-0x0000000005761000-memory.dmp
      Filesize

      4KB

    • memory/192-190-0x0000000005150000-0x0000000005756000-memory.dmp
      Filesize

      6.0MB

    • memory/488-120-0x0000000000000000-mapping.dmp
    • memory/1108-114-0x0000000000C60000-0x0000000000C61000-memory.dmp
      Filesize

      4KB

    • memory/1108-119-0x0000000001820000-0x0000000001885000-memory.dmp
      Filesize

      404KB

    • memory/1108-118-0x0000000005740000-0x0000000005C3E000-memory.dmp
      Filesize

      5.0MB

    • memory/1108-117-0x0000000005740000-0x0000000005741000-memory.dmp
      Filesize

      4KB

    • memory/1108-116-0x0000000005C40000-0x0000000005C41000-memory.dmp
      Filesize

      4KB

    • memory/1664-123-0x0000000000000000-mapping.dmp
    • memory/3332-133-0x0000000006DA0000-0x0000000006DA1000-memory.dmp
      Filesize

      4KB

    • memory/3332-158-0x0000000008CF0000-0x0000000008CF1000-memory.dmp
      Filesize

      4KB

    • memory/3332-134-0x0000000006EF0000-0x0000000006EF1000-memory.dmp
      Filesize

      4KB

    • memory/3332-135-0x00000000077E0000-0x00000000077E1000-memory.dmp
      Filesize

      4KB

    • memory/3332-136-0x0000000006D80000-0x0000000006D81000-memory.dmp
      Filesize

      4KB

    • memory/3332-137-0x0000000007D60000-0x0000000007D61000-memory.dmp
      Filesize

      4KB

    • memory/3332-138-0x0000000007C40000-0x0000000007C41000-memory.dmp
      Filesize

      4KB

    • memory/3332-146-0x0000000008BC0000-0x0000000008BF3000-memory.dmp
      Filesize

      204KB

    • memory/3332-153-0x0000000008B80000-0x0000000008B81000-memory.dmp
      Filesize

      4KB

    • memory/3332-132-0x0000000006D00000-0x0000000006D01000-memory.dmp
      Filesize

      4KB

    • memory/3332-159-0x000000007EC80000-0x000000007EC81000-memory.dmp
      Filesize

      4KB

    • memory/3332-160-0x0000000008F10000-0x0000000008F11000-memory.dmp
      Filesize

      4KB

    • memory/3332-131-0x0000000001322000-0x0000000001323000-memory.dmp
      Filesize

      4KB

    • memory/3332-130-0x0000000001320000-0x0000000001321000-memory.dmp
      Filesize

      4KB

    • memory/3332-129-0x00000000071B0000-0x00000000071B1000-memory.dmp
      Filesize

      4KB

    • memory/3332-189-0x0000000001323000-0x0000000001324000-memory.dmp
      Filesize

      4KB

    • memory/3332-128-0x00000000010E0000-0x00000000010E1000-memory.dmp
      Filesize

      4KB

    • memory/3332-125-0x0000000000000000-mapping.dmp