Analysis

  • max time kernel
    160s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    06/10/2023, 20:39

General

  • Target

    SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe

  • Size

    274KB

  • MD5

    b9fb5d09c9353294a07d3cbe9e3cdf32

  • SHA1

    360671e99ada386546ee2562b575f6d7e6fdcc76

  • SHA256

    d16581b77c0a19e06d4e612349abd154ee48f527933aa3ecc50c215c1cbadd95

  • SHA512

    b091d086eed013e91041a39b17863263325ecbd00ff31da097a583dc931b4f1816a0dec15210d46354fcf859b177286c0994b602db5cadc4db1e2c9d9afb912e

  • SSDEEP

    3072:hXRpnwP6V6EBlO39wH9ejw56C/pcTcKgoIcVTE8bA4l8KU:JR+PTEBlOA9Cw5Z/pcTzIcxE8r8K

Malware Config

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.DropperX-gen.17769.5978.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1908
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {B5DA244D-0FE3-4923-A8B1-03DF74BAC905} S-1-5-21-3750544865-3773649541-1858556521-1000:XOCYHKRS\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2720
    • C:\Users\Admin\AppData\Roaming\dvjvgcr
      C:\Users\Admin\AppData\Roaming\dvjvgcr
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2732
      • C:\Users\Admin\AppData\Roaming\dvjvgcr
        C:\Users\Admin\AppData\Roaming\dvjvgcr
        3⤵
        • Executes dropped EXE
        • Checks SCSI registry key(s)
        • Suspicious behavior: MapViewOfSection
        PID:2512

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\dvjvgcr

    Filesize

    274KB

    MD5

    b9fb5d09c9353294a07d3cbe9e3cdf32

    SHA1

    360671e99ada386546ee2562b575f6d7e6fdcc76

    SHA256

    d16581b77c0a19e06d4e612349abd154ee48f527933aa3ecc50c215c1cbadd95

    SHA512

    b091d086eed013e91041a39b17863263325ecbd00ff31da097a583dc931b4f1816a0dec15210d46354fcf859b177286c0994b602db5cadc4db1e2c9d9afb912e

  • C:\Users\Admin\AppData\Roaming\dvjvgcr

    Filesize

    274KB

    MD5

    b9fb5d09c9353294a07d3cbe9e3cdf32

    SHA1

    360671e99ada386546ee2562b575f6d7e6fdcc76

    SHA256

    d16581b77c0a19e06d4e612349abd154ee48f527933aa3ecc50c215c1cbadd95

    SHA512

    b091d086eed013e91041a39b17863263325ecbd00ff31da097a583dc931b4f1816a0dec15210d46354fcf859b177286c0994b602db5cadc4db1e2c9d9afb912e

  • C:\Users\Admin\AppData\Roaming\dvjvgcr

    Filesize

    274KB

    MD5

    b9fb5d09c9353294a07d3cbe9e3cdf32

    SHA1

    360671e99ada386546ee2562b575f6d7e6fdcc76

    SHA256

    d16581b77c0a19e06d4e612349abd154ee48f527933aa3ecc50c215c1cbadd95

    SHA512

    b091d086eed013e91041a39b17863263325ecbd00ff31da097a583dc931b4f1816a0dec15210d46354fcf859b177286c0994b602db5cadc4db1e2c9d9afb912e

  • \Users\Admin\AppData\Roaming\dvjvgcr

    Filesize

    274KB

    MD5

    b9fb5d09c9353294a07d3cbe9e3cdf32

    SHA1

    360671e99ada386546ee2562b575f6d7e6fdcc76

    SHA256

    d16581b77c0a19e06d4e612349abd154ee48f527933aa3ecc50c215c1cbadd95

    SHA512

    b091d086eed013e91041a39b17863263325ecbd00ff31da097a583dc931b4f1816a0dec15210d46354fcf859b177286c0994b602db5cadc4db1e2c9d9afb912e

  • memory/1244-26-0x0000000003990000-0x00000000039A6000-memory.dmp

    Filesize

    88KB

  • memory/1244-8-0x0000000002B80000-0x0000000002B96000-memory.dmp

    Filesize

    88KB

  • memory/1732-1-0x00000000023A0000-0x00000000024A0000-memory.dmp

    Filesize

    1024KB

  • memory/1732-4-0x0000000000220000-0x0000000000229000-memory.dmp

    Filesize

    36KB

  • memory/1908-9-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1908-5-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1908-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1908-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1908-7-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2512-25-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2512-27-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2732-20-0x0000000002360000-0x0000000002460000-memory.dmp

    Filesize

    1024KB