Analysis

  • max time kernel
    54s
  • max time network
    57s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    03-05-2021 23:37

General

  • Target

    320F0032704DEA1152C5880DEF04E61E.exe

  • Size

    2.3MB

  • MD5

    320f0032704dea1152c5880def04e61e

  • SHA1

    6dd5462a765375ab6d8720263aebe4b37c9b17d2

  • SHA256

    8d730630389f403985ddbff2c9617c9b9ca9fd4ad0c9ee5d9fceeecc44356340

  • SHA512

    99ed916a76ecd3c898afff7d287e95cbd985f22b3c99999396de5e5c4ebc99c1e020309fede213cdb4a2a4c2523b521b4803c396089424ee21ac20a88eea701d

Malware Config

Extracted

Family

redline

Botnet

4/28

C2

157.90.162.135:35200

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • RedLine

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

  • RedLine Payload 3 IoCs
  • Windows security bypass 2 TTPs
  • Nirsoft 7 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 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 8 IoCs
  • 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 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\320F0032704DEA1152C5880DEF04E61E.exe
    "C:\Users\Admin\AppData\Local\Temp\320F0032704DEA1152C5880DEF04E61E.exe"
    1⤵
    • Loads dropped DLL
    • Windows security modification
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:864
    • C:\Users\Admin\AppData\Local\Temp\2405bc59-1740-42fc-8a78-ff0484bb9c00\AdvancedRun.exe
      "C:\Users\Admin\AppData\Local\Temp\2405bc59-1740-42fc-8a78-ff0484bb9c00\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\2405bc59-1740-42fc-8a78-ff0484bb9c00\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1420
      • C:\Users\Admin\AppData\Local\Temp\2405bc59-1740-42fc-8a78-ff0484bb9c00\AdvancedRun.exe
        "C:\Users\Admin\AppData\Local\Temp\2405bc59-1740-42fc-8a78-ff0484bb9c00\AdvancedRun.exe" /SpecialRun 4101d8 1420
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:856
    • 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\320F0032704DEA1152C5880DEF04E61E.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:544
    • C:\Users\Admin\AppData\Local\Temp\320F0032704DEA1152C5880DEF04E61E.exe
      "C:\Users\Admin\AppData\Local\Temp\320F0032704DEA1152C5880DEF04E61E.exe"
      2⤵
        PID:524
      • C:\Users\Admin\AppData\Local\Temp\320F0032704DEA1152C5880DEF04E61E.exe
        "C:\Users\Admin\AppData\Local\Temp\320F0032704DEA1152C5880DEF04E61E.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1964

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Modify Existing Service

    1
    T1031

    Defense Evasion

    Modify Registry

    3
    T1112

    Disabling Security Tools

    3
    T1089

    Credential Access

    Credentials in Files

    2
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    2
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\2405bc59-1740-42fc-8a78-ff0484bb9c00\AdvancedRun.exe
      MD5

      17fc12902f4769af3a9271eb4e2dacce

      SHA1

      9a4a1581cc3971579574f837e110f3bd6d529dab

      SHA256

      29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

      SHA512

      036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

    • C:\Users\Admin\AppData\Local\Temp\2405bc59-1740-42fc-8a78-ff0484bb9c00\AdvancedRun.exe
      MD5

      17fc12902f4769af3a9271eb4e2dacce

      SHA1

      9a4a1581cc3971579574f837e110f3bd6d529dab

      SHA256

      29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

      SHA512

      036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

    • C:\Users\Admin\AppData\Local\Temp\2405bc59-1740-42fc-8a78-ff0484bb9c00\AdvancedRun.exe
      MD5

      17fc12902f4769af3a9271eb4e2dacce

      SHA1

      9a4a1581cc3971579574f837e110f3bd6d529dab

      SHA256

      29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

      SHA512

      036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

    • \Users\Admin\AppData\Local\Temp\2405bc59-1740-42fc-8a78-ff0484bb9c00\AdvancedRun.exe
      MD5

      17fc12902f4769af3a9271eb4e2dacce

      SHA1

      9a4a1581cc3971579574f837e110f3bd6d529dab

      SHA256

      29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

      SHA512

      036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

    • \Users\Admin\AppData\Local\Temp\2405bc59-1740-42fc-8a78-ff0484bb9c00\AdvancedRun.exe
      MD5

      17fc12902f4769af3a9271eb4e2dacce

      SHA1

      9a4a1581cc3971579574f837e110f3bd6d529dab

      SHA256

      29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

      SHA512

      036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

    • \Users\Admin\AppData\Local\Temp\2405bc59-1740-42fc-8a78-ff0484bb9c00\AdvancedRun.exe
      MD5

      17fc12902f4769af3a9271eb4e2dacce

      SHA1

      9a4a1581cc3971579574f837e110f3bd6d529dab

      SHA256

      29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

      SHA512

      036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

    • \Users\Admin\AppData\Local\Temp\2405bc59-1740-42fc-8a78-ff0484bb9c00\AdvancedRun.exe
      MD5

      17fc12902f4769af3a9271eb4e2dacce

      SHA1

      9a4a1581cc3971579574f837e110f3bd6d529dab

      SHA256

      29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

      SHA512

      036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

    • memory/544-92-0x0000000006170000-0x0000000006171000-memory.dmp
      Filesize

      4KB

    • memory/544-82-0x0000000005240000-0x0000000005241000-memory.dmp
      Filesize

      4KB

    • memory/544-115-0x0000000006310000-0x0000000006311000-memory.dmp
      Filesize

      4KB

    • memory/544-114-0x0000000006300000-0x0000000006301000-memory.dmp
      Filesize

      4KB

    • memory/544-100-0x0000000005610000-0x0000000005611000-memory.dmp
      Filesize

      4KB

    • memory/544-99-0x0000000006280000-0x0000000006281000-memory.dmp
      Filesize

      4KB

    • memory/544-75-0x0000000000000000-mapping.dmp
    • memory/544-77-0x0000000001D90000-0x0000000001D91000-memory.dmp
      Filesize

      4KB

    • memory/544-78-0x0000000004820000-0x0000000004821000-memory.dmp
      Filesize

      4KB

    • memory/544-79-0x0000000001F90000-0x0000000002BDA000-memory.dmp
      Filesize

      12.3MB

    • memory/544-81-0x00000000025C0000-0x00000000025C1000-memory.dmp
      Filesize

      4KB

    • memory/544-91-0x000000007EF30000-0x000000007EF31000-memory.dmp
      Filesize

      4KB

    • memory/544-85-0x0000000006000000-0x0000000006001000-memory.dmp
      Filesize

      4KB

    • memory/544-90-0x0000000006040000-0x0000000006041000-memory.dmp
      Filesize

      4KB

    • memory/856-72-0x0000000000000000-mapping.dmp
    • memory/864-60-0x0000000000F40000-0x0000000000F41000-memory.dmp
      Filesize

      4KB

    • memory/864-62-0x00000000003E0000-0x0000000000446000-memory.dmp
      Filesize

      408KB

    • memory/864-63-0x0000000000330000-0x0000000000331000-memory.dmp
      Filesize

      4KB

    • memory/1420-68-0x0000000075891000-0x0000000075893000-memory.dmp
      Filesize

      8KB

    • memory/1420-66-0x0000000000000000-mapping.dmp
    • memory/1964-116-0x0000000000400000-0x000000000041C000-memory.dmp
      Filesize

      112KB

    • memory/1964-117-0x00000000004171F2-mapping.dmp
    • memory/1964-118-0x0000000000400000-0x000000000041C000-memory.dmp
      Filesize

      112KB

    • memory/1964-120-0x0000000004DB0000-0x0000000004DB1000-memory.dmp
      Filesize

      4KB