Analysis

  • max time kernel
    92s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    01-07-2022 04:12

General

  • Target

    ad5575b868f6e3ae0471dc7c846aaee2a4fb496c16740cb69ae63576047e4d90.exe

  • Size

    259KB

  • MD5

    e78a17b913abb7f5b276e993a4fbfa39

  • SHA1

    9af3fa3a1d3db32ebdb0fef5d47ebc87c1d7d9a3

  • SHA256

    ad5575b868f6e3ae0471dc7c846aaee2a4fb496c16740cb69ae63576047e4d90

  • SHA512

    c938a1541dd102e13f87ce5344d013c73a2177c40a5268b042ba2780600feb0bc23ff9f71aacba7aaab093d9d17c3bbcf0ca53216b9f9cd374318435f00f9b87

Malware Config

Extracted

Family

smokeloader

Version

2018

C2

http://taj.co.ug/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • 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
  • Checks SCSI registry key(s) 3 TTPs 2 IoCs

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

  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ad5575b868f6e3ae0471dc7c846aaee2a4fb496c16740cb69ae63576047e4d90.exe
    "C:\Users\Admin\AppData\Local\Temp\ad5575b868f6e3ae0471dc7c846aaee2a4fb496c16740cb69ae63576047e4d90.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1396
    • C:\Users\Admin\AppData\Local\Temp\ad5575b868f6e3ae0471dc7c846aaee2a4fb496c16740cb69ae63576047e4d90.exe
      "C:\Users\Admin\AppData\Local\Temp\ad5575b868f6e3ae0471dc7c846aaee2a4fb496c16740cb69ae63576047e4d90.exe"
      2⤵
      • Maps connected drives based on registry
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:1212

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

2
T1012

Peripheral Device Discovery

2
T1120

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1212-131-0x0000000000000000-mapping.dmp
  • memory/1212-132-0x0000000000400000-0x000000000040A000-memory.dmp
    Filesize

    40KB

  • memory/1212-133-0x0000000000400000-0x000000000040A000-memory.dmp
    Filesize

    40KB

  • memory/1212-135-0x0000000000400000-0x000000000040A000-memory.dmp
    Filesize

    40KB

  • memory/1396-130-0x0000000000606000-0x0000000000611000-memory.dmp
    Filesize

    44KB

  • memory/2408-134-0x0000000000550000-0x0000000000565000-memory.dmp
    Filesize

    84KB