Overview

overview

10

Static

static

21e36cb944...66.exe

windows7_x64

10

21e36cb944...66.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    183s
  • max time network
    194s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    08-05-2022 05:55

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    21e36cb944c9a595bc88ab53151ab15fe280d723a8d58f7ad97e60ecde167f66.exe

  • Size

    307KB

  • MD5

    53818ba0882a4f72965c01517b478499

  • SHA1

    fd50ef3f7d99b87ab1c0f1edb2c1790021b7203f

  • SHA256

    21e36cb944c9a595bc88ab53151ab15fe280d723a8d58f7ad97e60ecde167f66

  • SHA512

    9634cd14457db9be6e921bec1c15b192837610286dcd4ef0f3d81d73e504358bcbcc2eaa95d1a0388482207c7d58348ccd9eeefbe3c8e746eaf516d1952b0b75

Score
10/10
systembcsuricatatrojan

Malware Config

Extracted

Family

systembc

C2

sdadvert197.com:4044

mexstat128.com:4044

Signatures

  • SystemBC

    SystemBC is a proxy and remote administration tool first seen in 2019.

    trojansystembc
  • suricata: ET MALWARE Observed SystemBC CnC Domain in DNS Query

    suricata: ET MALWARE Observed SystemBC CnC Domain in DNS Query

    suricata
  • Executes dropped EXE 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Uses Tor communications 1 TTPs

    Malware can proxy its traffic through Tor for more anonymity.

  • Drops file in Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\21e36cb944c9a595bc88ab53151ab15fe280d723a8d58f7ad97e60ecde167f66.exe
    "C:\Users\Admin\AppData\Local\Temp\21e36cb944c9a595bc88ab53151ab15fe280d723a8d58f7ad97e60ecde167f66.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:4688
  • C:\ProgramData\bjcjj\ldlutm.exe
    C:\ProgramData\bjcjj\ldlutm.exe start
    1⤵
    • Executes dropped EXE
    PID:3736

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Connection Proxy

1
T1090

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\bjcjj\ldlutm.exe
    Filesize

    307KB

    MD5

    53818ba0882a4f72965c01517b478499

    SHA1

    fd50ef3f7d99b87ab1c0f1edb2c1790021b7203f

    SHA256

    21e36cb944c9a595bc88ab53151ab15fe280d723a8d58f7ad97e60ecde167f66

    SHA512

    9634cd14457db9be6e921bec1c15b192837610286dcd4ef0f3d81d73e504358bcbcc2eaa95d1a0388482207c7d58348ccd9eeefbe3c8e746eaf516d1952b0b75

    Download Submit
  • C:\ProgramData\bjcjj\ldlutm.exe
    Filesize

    307KB

    MD5

    53818ba0882a4f72965c01517b478499

    SHA1

    fd50ef3f7d99b87ab1c0f1edb2c1790021b7203f

    SHA256

    21e36cb944c9a595bc88ab53151ab15fe280d723a8d58f7ad97e60ecde167f66

    SHA512

    9634cd14457db9be6e921bec1c15b192837610286dcd4ef0f3d81d73e504358bcbcc2eaa95d1a0388482207c7d58348ccd9eeefbe3c8e746eaf516d1952b0b75

    Download Submit
  • memory/3736-136-0x0000000000D70000-0x0000000000D79000-memory.dmp
    Filesize

    36KB

    Download
  • memory/3736-135-0x0000000000EF8000-0x0000000000EFE000-memory.dmp
    Filesize

    24KB

    Download
  • memory/3736-137-0x0000000000400000-0x0000000000C2A000-memory.dmp
    Filesize

    8.2MB

    Download
  • memory/4688-131-0x0000000000EC0000-0x0000000000EC9000-memory.dmp
    Filesize

    36KB

    Download
  • memory/4688-130-0x0000000000F8E000-0x0000000000F95000-memory.dmp
    Filesize

    28KB

    Download
  • memory/4688-132-0x0000000000400000-0x0000000000C2A000-memory.dmp
    Filesize

    8.2MB

    Download