Overview

overview

10

Static

static

10

b8d3399dcf...61.exe

windows7-x64

10

b8d3399dcf...61.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    187s
  • max time network
    191s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 09:40

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General

  • Target

    b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061.exe

  • Size

    29KB

  • MD5

    08b3554a1d6704dbc2476d217410b814

  • SHA1

    33384df5e42ab15d62d12f7ca99ea59f79c1791a

  • SHA256

    b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061

  • SHA512

    8f58901ba3e6ffb63b13adff00126ca2d25695835006763a26438c9832b5f664decfc2ed35ecb8b3768aa966787743d715fc36ceea90a0e78686e05b8ee0ad50

  • SSDEEP

    384:HZwIpl79TbsiKQ17H5FoQriWmqDGbLTecEGBsbh0w4wlAokw9OhgOL1vYRGOZzcX:HV7tsiKojBr8q63TeWBKh0p29SgR+Z

Score
10/10
njratmzn | pageevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

MZN | Page

C2

th3-jazzz.no-ip.biz:1177

Mutex

d2711fd6805744d863b911b936c5ce74

Attributes
  • reg_key

    d2711fd6805744d863b911b936c5ce74

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 48 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061.exe
    "C:\Users\Admin\AppData\Local\Temp\b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4344
    • C:\Users\Admin\AppData\Local\Temp\explori.exe
      "C:\Users\Admin\AppData\Local\Temp\explori.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2068
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\explori.exe" "explori.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1804

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

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\explori.exe
    Filesize

    29KB

    MD5

    08b3554a1d6704dbc2476d217410b814

    SHA1

    33384df5e42ab15d62d12f7ca99ea59f79c1791a

    SHA256

    b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061

    SHA512

    8f58901ba3e6ffb63b13adff00126ca2d25695835006763a26438c9832b5f664decfc2ed35ecb8b3768aa966787743d715fc36ceea90a0e78686e05b8ee0ad50

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\explori.exe
    Filesize

    29KB

    MD5

    08b3554a1d6704dbc2476d217410b814

    SHA1

    33384df5e42ab15d62d12f7ca99ea59f79c1791a

    SHA256

    b8d3399dcf3114c6ae77f42cf424a1782ac315be141d9b1f8b35a513aa231061

    SHA512

    8f58901ba3e6ffb63b13adff00126ca2d25695835006763a26438c9832b5f664decfc2ed35ecb8b3768aa966787743d715fc36ceea90a0e78686e05b8ee0ad50

    Download Submit
  • memory/1804-137-0x0000000000000000-mapping.dmp
    Download
  • memory/2068-133-0x0000000000000000-mapping.dmp
    Download
  • memory/2068-138-0x0000000074B40000-0x00000000750F1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/2068-139-0x0000000074B40000-0x00000000750F1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4344-132-0x0000000074B40000-0x00000000750F1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4344-136-0x0000000074B40000-0x00000000750F1000-memory.dmp
    Filesize

    5.7MB

    Download