Overview

overview

10

Static

static

393a6fc616...e1.exe

windows7_x64

10

393a6fc616...e1.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    161s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    25-06-2022 12:05

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General

  • Target

    393a6fc616adbefad87e8946be9e4cce127749fde58b892e26c7c24b703efae1.exe

  • Size

    138KB

  • MD5

    673817bbb2672a7c4cfc1118aae648c0

  • SHA1

    89ded1a96fb527828affcec59df70313ea45419e

  • SHA256

    393a6fc616adbefad87e8946be9e4cce127749fde58b892e26c7c24b703efae1

  • SHA512

    8fcd0fc02f32c6e308bf493f77f6b8f75d92b1ef97f9b41fefc814a8686638c32deed4adae795df82557a950ff5152c924037d1b63f6220843c280b1ac49ec9a

Score
10/10
smokeloaderbackdoortrojan

Malware Config

Extracted

Family

smokeloader

Version

2018

C2

http://nhocbo.bit/

http://nhocbo.ru/
rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Loads dropped DLL 3 IoCs
  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\393a6fc616adbefad87e8946be9e4cce127749fde58b892e26c7c24b703efae1.exe
    "C:\Users\Admin\AppData\Local\Temp\393a6fc616adbefad87e8946be9e4cce127749fde58b892e26c7c24b703efae1.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2452
    • C:\Users\Admin\AppData\Local\Temp\393a6fc616adbefad87e8946be9e4cce127749fde58b892e26c7c24b703efae1.exe
      "C:\Users\Admin\AppData\Local\Temp\393a6fc616adbefad87e8946be9e4cce127749fde58b892e26c7c24b703efae1.exe"
      2⤵
      • Maps connected drives based on registry
      • Suspicious behavior: MapViewOfSection
      PID:1976

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nszBA6D.tmp\System.dll
    Filesize

    11KB

    MD5

    fc90dfb694d0e17b013d6f818bce41b0

    SHA1

    3243969886d640af3bfa442728b9f0dff9d5f5b0

    SHA256

    7fe77ca13121a113c59630a3dba0c8aaa6372e8082393274da8f8608c4ce4528

    SHA512

    324f13aa7a33c6408e2a57c3484d1691ecee7c3c1366de2bb8978c8dc66b18425d8cab5a32d1702c13c43703e36148a022263de7166afdce141da2b01169f1c6

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\stations.dll
    Filesize

    88KB

    MD5

    d87f6e1e70a672b39ec84b081aaf3577

    SHA1

    fcb806314a06f2cc8045f5778d8c0a29935718b3

    SHA256

    b37829d393800e04041187067e862c48718f2b9f84e9c2ca5b0fc4be155f9f52

    SHA512

    ab379b51ee3f5e8656cbdd5be230533c2cc59f09bd95bbd7dd5a168bd7cf81360b5ce16384348cd9c80e8c6609e951257e70d7230a4e9e2fe2d7c513770aca90

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\stations.dll
    Filesize

    88KB

    MD5

    d87f6e1e70a672b39ec84b081aaf3577

    SHA1

    fcb806314a06f2cc8045f5778d8c0a29935718b3

    SHA256

    b37829d393800e04041187067e862c48718f2b9f84e9c2ca5b0fc4be155f9f52

    SHA512

    ab379b51ee3f5e8656cbdd5be230533c2cc59f09bd95bbd7dd5a168bd7cf81360b5ce16384348cd9c80e8c6609e951257e70d7230a4e9e2fe2d7c513770aca90

    Download Submit
  • memory/1976-134-0x0000000000000000-mapping.dmp
    Download
  • memory/1976-135-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB

    Download
  • memory/1976-136-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB

    Download
  • memory/2452-133-0x0000000004FD0000-0x0000000004FE7000-memory.dmp
    Filesize

    92KB

    Download
  • memory/3168-137-0x0000000000700000-0x0000000000715000-memory.dmp
    Filesize

    84KB

    Download