Analysis

  • max time kernel
    153s
  • max time network
    123s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    27-01-2022 04:21

General

  • Target

    9c19e311cc6783bf94c29454ab5c9418af23d200d6c6ede34581f55abb19beda.exe

  • Size

    241KB

  • MD5

    b56c4727a3bf9de8385332fdd14c4b9b

  • SHA1

    f1c0b1537f068ede8f84e3d9474540d960a4adb9

  • SHA256

    9c19e311cc6783bf94c29454ab5c9418af23d200d6c6ede34581f55abb19beda

  • SHA512

    dcc4eb8d7aabc1499ad731e65dad9fe665b1f8e5732eabe5fe649ed227e6535867fb2b9b886c1f353fa524bfbd8f7110e69f15ada2044d558ac5fbd0c3dcb26f

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://host-data-coin-11.com/

http://file-coin-host-12.com/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 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 WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9c19e311cc6783bf94c29454ab5c9418af23d200d6c6ede34581f55abb19beda.exe
    "C:\Users\Admin\AppData\Local\Temp\9c19e311cc6783bf94c29454ab5c9418af23d200d6c6ede34581f55abb19beda.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2764
    • C:\Users\Admin\AppData\Local\Temp\9c19e311cc6783bf94c29454ab5c9418af23d200d6c6ede34581f55abb19beda.exe
      "C:\Users\Admin\AppData\Local\Temp\9c19e311cc6783bf94c29454ab5c9418af23d200d6c6ede34581f55abb19beda.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:3824

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/2764-117-0x00000000005D0000-0x00000000005F3000-memory.dmp
    Filesize

    140KB

  • memory/2892-120-0x00000000013C0000-0x00000000013D6000-memory.dmp
    Filesize

    88KB

  • memory/3824-118-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB

  • memory/3824-119-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB