Resubmissions

01-11-2020 15:20

201101-6gnva6fyd2 10

01-11-2020 15:16

201101-dvbselbzxx 10

Analysis

  • max time kernel
    141s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    01-11-2020 15:16

General

  • Target

    2020-11-01_21-26-29.bin.exe

  • Size

    234KB

  • MD5

    dd22d3a34781601ebbe3020b7cd33356

  • SHA1

    567dd97232f0cf9ecec13f82ff894d9c9ee0d013

  • SHA256

    33fe9bbda8cc1dbaa70e85a203fb6a0ec2a82ce2edb0c5ac585be620e8b8a1b0

  • SHA512

    c6c4d353a76b1a0c35791c58935ec426d3d67c2133cffb5332c5ab71c5424f5ba1acf398fd210285676f5b838646192791f67a8edceddfa7e4b0722cbef39316

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://etasuklavish.today/

http://mragyzmachnobesdi.today/

http://kimchinikuzims.today/

http://slacvostinrius.today/

http://straponuliusyn.today/

http://grammmdinss.today/

http://viprasputinsd.chimkent.su/

http://lupadypa.dagestan.su/

http://stoknolimchin.exnet.su/

http://musaroprovadnikov.live/

http://teemforyourexprensiti.life/

http://stolkgolmishutich.termez.su/

http://roompampamgandish.wtf/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 698 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2020-11-01_21-26-29.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\2020-11-01_21-26-29.bin.exe"
    1⤵
    • Loads dropped DLL
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:1640
  • C:\Users\Admin\AppData\Local\Temp\F9D9.tmp.exe
    C:\Users\Admin\AppData\Local\Temp\F9D9.tmp.exe
    1⤵
    • Executes dropped EXE
    PID:1612

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1272-3-0x0000000002990000-0x00000000029A6000-memory.dmp

    Filesize

    88KB

  • memory/1612-6-0x00000000024E9000-0x00000000024EA000-memory.dmp

    Filesize

    4KB

  • memory/1612-7-0x0000000003CE0000-0x0000000003CF1000-memory.dmp

    Filesize

    68KB

  • memory/1640-0-0x0000000002419000-0x000000000241A000-memory.dmp

    Filesize

    4KB

  • memory/1640-1-0x0000000003C30000-0x0000000003C41000-memory.dmp

    Filesize

    68KB