Overview

overview

10

Static

static

10

25ce3e5e75...75.exe

windows7-x64

10

25ce3e5e75...75.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-07-2023 17:31

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General

  • Target

    25ce3e5e7542494839e7af1037d01b75.exe

  • Size

    37KB

  • MD5

    25ce3e5e7542494839e7af1037d01b75

  • SHA1

    a0a429037733f0d952d10fe2b17e86bfc91fad8e

  • SHA256

    e5540cffba128c0d852016d11e6e154445f83b146aee17a82e9f45ac876d10de

  • SHA512

    565398f500601bf5942897987414315bc4ddc0b980df24d672bfc0c2987ba7d1c4562e0cbb022bc8dce481202096d086d056987ba2b4c8fd66c262f8cbd7c0ce

  • SSDEEP

    384:6IDIUiFubK7FmpE8QyEfeyfZOfnSFtrAF+rMRTyN/0L+EcoinblneHQM3epzXiNw:9d2n8LEfeygvS3rM+rMRa8NuwKt

Score
10/10
njratloxevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

lox

C2

6.tcp.eu.ngrok.io:16154

Mutex

bf3a4c0ea202ee07bb0bc0988c661a2a

Attributes
  • reg_key

    bf3a4c0ea202ee07bb0bc0988c661a2a

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • 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
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Drops file in System32 directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\25ce3e5e7542494839e7af1037d01b75.exe
    "C:\Users\Admin\AppData\Local\Temp\25ce3e5e7542494839e7af1037d01b75.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3728
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2420
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:3800
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p
    1⤵
    • Drops file in System32 directory
    • Checks processor information in registry
    • Enumerates system info in registry
    PID:1520

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\svchost.exe
    Filesize

    37KB

    MD5

    25ce3e5e7542494839e7af1037d01b75

    SHA1

    a0a429037733f0d952d10fe2b17e86bfc91fad8e

    SHA256

    e5540cffba128c0d852016d11e6e154445f83b146aee17a82e9f45ac876d10de

    SHA512

    565398f500601bf5942897987414315bc4ddc0b980df24d672bfc0c2987ba7d1c4562e0cbb022bc8dce481202096d086d056987ba2b4c8fd66c262f8cbd7c0ce

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

    37KB

    MD5

    25ce3e5e7542494839e7af1037d01b75

    SHA1

    a0a429037733f0d952d10fe2b17e86bfc91fad8e

    SHA256

    e5540cffba128c0d852016d11e6e154445f83b146aee17a82e9f45ac876d10de

    SHA512

    565398f500601bf5942897987414315bc4ddc0b980df24d672bfc0c2987ba7d1c4562e0cbb022bc8dce481202096d086d056987ba2b4c8fd66c262f8cbd7c0ce

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

    37KB

    MD5

    25ce3e5e7542494839e7af1037d01b75

    SHA1

    a0a429037733f0d952d10fe2b17e86bfc91fad8e

    SHA256

    e5540cffba128c0d852016d11e6e154445f83b146aee17a82e9f45ac876d10de

    SHA512

    565398f500601bf5942897987414315bc4ddc0b980df24d672bfc0c2987ba7d1c4562e0cbb022bc8dce481202096d086d056987ba2b4c8fd66c262f8cbd7c0ce

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\wsuAFD7.tmp
    Filesize

    14KB

    MD5

    c01eaa0bdcd7c30a42bbb35a9acbf574

    SHA1

    0aee3e1b873e41d040f1991819d0027b6cc68f54

    SHA256

    32297224427103aa1834dba276bf5d49cd5dd6bda0291422e47ad0d0706c6d40

    SHA512

    d26ff775ad39425933cd3df92209faa53ec5b701e65bfbcccc64ce8dd3e79f619a9bad7cc975a98a95f2006ae89e50551877fc315a3050e48d5ab89e0802e2b7

    Download Submit
  • memory/2420-147-0x00000000754F0000-0x0000000075AA1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/2420-150-0x00000000754F0000-0x0000000075AA1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3728-133-0x00000000754F0000-0x0000000075AA1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3728-134-0x00000000754F0000-0x0000000075AA1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3728-135-0x0000000000F70000-0x0000000000F80000-memory.dmp
    Filesize

    64KB

    Download
  • memory/3728-145-0x00000000754F0000-0x0000000075AA1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3728-146-0x00000000754F0000-0x0000000075AA1000-memory.dmp
    Filesize

    5.7MB

    Download