Overview

overview

10

Static

static

10

d68c663612...80.exe

windows7_x64

10

d68c663612...80.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 00:03

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General

  • Target

    d68c663612c92937bbb8e244ef625279f755c768ac4ac97e092f8fd5486c9580.exe

  • Size

    60KB

  • MD5

    65660408a79c1ba98758a0980813933d

  • SHA1

    66fecb46e0ef3b187c159305c27ab2b25a523cf1

  • SHA256

    d68c663612c92937bbb8e244ef625279f755c768ac4ac97e092f8fd5486c9580

  • SHA512

    c31e348ada70abbc338f3e2351ea6058ddc964963d82cdbe4d086f30a7cebc77ad18b541ef82deb1847e239eef94762da791f25770a02c314d7310a3833ca35e

Score
10/10
njratsvchostevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

svchost

C2

127.0.0.1:1177

Mutex

Windows Update

Attributes
  • reg_key

    Windows Update

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    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 use of AdjustPrivilegeToken 29 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d68c663612c92937bbb8e244ef625279f755c768ac4ac97e092f8fd5486c9580.exe
    "C:\Users\Admin\AppData\Local\Temp\d68c663612c92937bbb8e244ef625279f755c768ac4ac97e092f8fd5486c9580.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4028
    • C:\Users\Admin\svchost.exe
      "C:\Users\Admin\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3548
      • C:\Windows\SYSTEM32\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\svchost.exe" "svchost.exe" ENABLE
        3⤵
          PID:4928

    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\svchost.exe
      Filesize

      60KB

      MD5

      65660408a79c1ba98758a0980813933d

      SHA1

      66fecb46e0ef3b187c159305c27ab2b25a523cf1

      SHA256

      d68c663612c92937bbb8e244ef625279f755c768ac4ac97e092f8fd5486c9580

      SHA512

      c31e348ada70abbc338f3e2351ea6058ddc964963d82cdbe4d086f30a7cebc77ad18b541ef82deb1847e239eef94762da791f25770a02c314d7310a3833ca35e

      Download Submit
    • C:\Users\Admin\svchost.exe
      Filesize

      60KB

      MD5

      65660408a79c1ba98758a0980813933d

      SHA1

      66fecb46e0ef3b187c159305c27ab2b25a523cf1

      SHA256

      d68c663612c92937bbb8e244ef625279f755c768ac4ac97e092f8fd5486c9580

      SHA512

      c31e348ada70abbc338f3e2351ea6058ddc964963d82cdbe4d086f30a7cebc77ad18b541ef82deb1847e239eef94762da791f25770a02c314d7310a3833ca35e

      Download Submit
    • memory/3548-130-0x0000000000000000-mapping.dmp
      Download
    • memory/4928-133-0x0000000000000000-mapping.dmp
      Download