Resubmissions

27-10-2021 14:44

211027-r4madafbg6 10

27-10-2021 14:28

211027-rs7f6sfah4 10

Analysis

  • max time kernel
    157s
  • max time network
    151s
  • submitted
    01-01-1970 00:00

General

  • Target

    setup_installer/Wed09b2a8bc4f16cb.exe

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://brandyjaggers.com/upload/

http://andbal.com/upload/

http://alotofquotes.com/upload/

http://szpnc.cn/upload/

http://uggeboots.com/upload/

http://100klv.com/upload/

http://rapmusic.at/upload/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 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 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\setup_installer\Wed09b2a8bc4f16cb.exe
    "C:\Users\Admin\AppData\Local\Temp\setup_installer\Wed09b2a8bc4f16cb.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:760

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/760-55-0x0000000002CA8000-0x0000000002CB9000-memory.dmp
    Filesize

    68KB

  • memory/760-56-0x0000000000020000-0x0000000000029000-memory.dmp
    Filesize

    36KB

  • memory/760-57-0x0000000075B71000-0x0000000075B73000-memory.dmp
    Filesize

    8KB

  • memory/760-58-0x0000000000400000-0x0000000002BAA000-memory.dmp
    Filesize

    39.7MB

  • memory/1304-59-0x00000000029B0000-0x00000000029C6000-memory.dmp
    Filesize

    88KB