Analysis

  • max time kernel
    151s
  • max time network
    158s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    27-05-2022 18:43

General

  • Target

    052ee61fb5185d4a7e4406ca459dc6a089fb58e605d58c0a1cd285985b4ce9e1.exe

  • Size

    577KB

  • MD5

    1711710d30ed4194ccfde68c6b6f3b22

  • SHA1

    4f399c035bb370610940a96b3aab90eab884a925

  • SHA256

    052ee61fb5185d4a7e4406ca459dc6a089fb58e605d58c0a1cd285985b4ce9e1

  • SHA512

    fbb943b1a20a4fbe0d1d5da5b5b874cb7b728354fc24c4ab1b0d827220052d7b34117980f7a1e993814b83bc02264a8af916a0fd909cbdd065cb11b396fc9353

Malware Config

Extracted

Family

revengerat

Mutex

Extracted

Family

revengerat

Botnet

Guest

C2

93.155.97.82:333

93.155.97.82:1604

neudria.ddns.net:333

neudria.ddns.net:1604

Mutex

RV_MUTEX-ZFbTXZMONFueOci

Signatures

  • RevengeRAT

    Remote-access trojan with a wide range of capabilities.

  • Looks for VirtualBox Guest Additions in registry 2 TTPs
  • RevengeRat Executable 6 IoCs
  • Looks for VMWare Tools registry key 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Drops startup file 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\052ee61fb5185d4a7e4406ca459dc6a089fb58e605d58c0a1cd285985b4ce9e1.exe
    "C:\Users\Admin\AppData\Local\Temp\052ee61fb5185d4a7e4406ca459dc6a089fb58e605d58c0a1cd285985b4ce9e1.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1656
    • C:\Windows\SysWOW64\cscript.exe
      "C:\Windows\System32\cscript.exe" //B //Nologo C:\Users\Admin\StreamX.vbs
      2⤵
      • Drops startup file
      • Loads dropped DLL
      PID:912
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2032
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\052ee61fb5185d4a7e4406ca459dc6a089fb58e605d58c0a1cd285985b4ce9e1.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1344
      • C:\Windows\SysWOW64\choice.exe
        choice /C Y /N /D Y /T 3
        3⤵
          PID:1352

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Virtualization/Sandbox Evasion

    2
    T1497

    Discovery

    Query Registry

    4
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    3
    T1082

    Peripheral Device Discovery

    1
    T1120

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\StreamX.exe
      Filesize

      577KB

      MD5

      1711710d30ed4194ccfde68c6b6f3b22

      SHA1

      4f399c035bb370610940a96b3aab90eab884a925

      SHA256

      052ee61fb5185d4a7e4406ca459dc6a089fb58e605d58c0a1cd285985b4ce9e1

      SHA512

      fbb943b1a20a4fbe0d1d5da5b5b874cb7b728354fc24c4ab1b0d827220052d7b34117980f7a1e993814b83bc02264a8af916a0fd909cbdd065cb11b396fc9353

    • C:\Users\Admin\StreamX.vbs
      Filesize

      275B

      MD5

      cf428ca413e6966414f8bd4e04ee48cb

      SHA1

      1db80df27ddfd1d81d181bc70c312dd3d4388bff

      SHA256

      15845597e335f71cad5e9b680bd6f1c7de7ba676dbb275b20b67c8fb9c6fc22e

      SHA512

      befce47732be9891c364db21c740deb0985c03114b1c1a3f83db03d3c0445a45558005125e25d8c897737f6c99e163b07b8fa28985387bf429cad7af00992f08

    • \Users\Admin\StreamX.exe
      Filesize

      577KB

      MD5

      1711710d30ed4194ccfde68c6b6f3b22

      SHA1

      4f399c035bb370610940a96b3aab90eab884a925

      SHA256

      052ee61fb5185d4a7e4406ca459dc6a089fb58e605d58c0a1cd285985b4ce9e1

      SHA512

      fbb943b1a20a4fbe0d1d5da5b5b874cb7b728354fc24c4ab1b0d827220052d7b34117980f7a1e993814b83bc02264a8af916a0fd909cbdd065cb11b396fc9353

    • memory/912-59-0x0000000000000000-mapping.dmp
    • memory/1344-78-0x0000000000000000-mapping.dmp
    • memory/1352-83-0x0000000000000000-mapping.dmp
    • memory/1656-67-0x00000000708F0000-0x00000000709EC000-memory.dmp
      Filesize

      1008KB

    • memory/1656-68-0x00000000701B0000-0x00000000708EE000-memory.dmp
      Filesize

      7.2MB

    • memory/1656-63-0x0000000073740000-0x0000000073F20000-memory.dmp
      Filesize

      7.9MB

    • memory/1656-56-0x0000000001DF0000-0x0000000001E2E000-memory.dmp
      Filesize

      248KB

    • memory/1656-55-0x0000000075A61000-0x0000000075A63000-memory.dmp
      Filesize

      8KB

    • memory/1656-66-0x00000000709F0000-0x0000000071746000-memory.dmp
      Filesize

      13.3MB

    • memory/1656-58-0x0000000072160000-0x00000000734EF000-memory.dmp
      Filesize

      19.6MB

    • memory/1656-57-0x0000000001ED0000-0x0000000001EF8000-memory.dmp
      Filesize

      160KB

    • memory/1656-69-0x000000006FF90000-0x00000000700B3000-memory.dmp
      Filesize

      1.1MB

    • memory/1656-70-0x00000000041F0000-0x00000000041F8000-memory.dmp
      Filesize

      32KB

    • memory/1656-94-0x0000000071750000-0x0000000072160000-memory.dmp
      Filesize

      10.1MB

    • memory/1656-93-0x0000000072160000-0x00000000734EF000-memory.dmp
      Filesize

      19.6MB

    • memory/1656-54-0x0000000000380000-0x0000000000416000-memory.dmp
      Filesize

      600KB

    • memory/1656-84-0x000000006F880000-0x000000006FA51000-memory.dmp
      Filesize

      1.8MB

    • memory/1656-60-0x0000000071750000-0x0000000072160000-memory.dmp
      Filesize

      10.1MB

    • memory/2032-74-0x0000000000400000-0x0000000000408000-memory.dmp
      Filesize

      32KB

    • memory/2032-81-0x0000000000400000-0x0000000000408000-memory.dmp
      Filesize

      32KB

    • memory/2032-79-0x0000000000400000-0x0000000000408000-memory.dmp
      Filesize

      32KB

    • memory/2032-76-0x0000000000405E0E-mapping.dmp
    • memory/2032-75-0x0000000000400000-0x0000000000408000-memory.dmp
      Filesize

      32KB

    • memory/2032-85-0x000000006EFE0000-0x000000006F58B000-memory.dmp
      Filesize

      5.7MB

    • memory/2032-86-0x000000006E440000-0x000000006EF38000-memory.dmp
      Filesize

      11.0MB

    • memory/2032-87-0x000000006DC40000-0x000000006E3DC000-memory.dmp
      Filesize

      7.6MB

    • memory/2032-88-0x000000006DAB0000-0x000000006DC38000-memory.dmp
      Filesize

      1.5MB

    • memory/2032-89-0x000000006CED0000-0x000000006DAAE000-memory.dmp
      Filesize

      11.9MB

    • memory/2032-90-0x000000006CD30000-0x000000006CECB000-memory.dmp
      Filesize

      1.6MB

    • memory/2032-91-0x000000006CC30000-0x000000006CD21000-memory.dmp
      Filesize

      964KB

    • memory/2032-92-0x000000006C6F0000-0x000000006CC26000-memory.dmp
      Filesize

      5.2MB

    • memory/2032-72-0x0000000000400000-0x0000000000408000-memory.dmp
      Filesize

      32KB

    • memory/2032-71-0x0000000000400000-0x0000000000408000-memory.dmp
      Filesize

      32KB

    • memory/2032-95-0x000000006EFE0000-0x000000006F58B000-memory.dmp
      Filesize

      5.7MB

    • memory/2032-96-0x000000006E440000-0x000000006EF38000-memory.dmp
      Filesize

      11.0MB

    • memory/2032-97-0x000000006DC40000-0x000000006E3DC000-memory.dmp
      Filesize

      7.6MB