njrat | af5fd63b145516de0fe79e709e30099e24f5099d0415c5ecff07b94e5f03ae7b

Analysis

max time kernel
32s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2024 05:56

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General

Target

4011c945eab342dfa34f753fb98a8903.exe
Size

65KB
MD5

4011c945eab342dfa34f753fb98a8903
SHA1

abdf5d45451977d0aa451b34947de4459fe01c2e
SHA256

af5fd63b145516de0fe79e709e30099e24f5099d0415c5ecff07b94e5f03ae7b
SHA512

fada3b5a3370ac17194f9646e933c4c00735ba5ec30ae6abc7546bcc506d4ddc8474155add6ab6b4faf4963080d51791ecb25c05a677b3c042fa7b980dbc609a
SSDEEP

1536:sEikUQ5Ke31oeYUnqmc/5arJpG96UzodEtp6ARiOm6Ozx:sE5rl/Nq9QIz8A8OmRx

Score

10^/10

njrat ⋘a♆a⋙evasion trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

⋘A♆A⋙

hakim32.ddns.net:2000

Mutex

a5b3fa3acb0104014f92c69f9ef455a8

Attributes

reg_key
a5b3fa3acb0104014f92c69f9ef455a8
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Windows Service

T1543.003

pid	Process
2292	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	4011c945eab342dfa34f753fb98a8903.exe

Executes dropped EXE 1 IoCs

pid	Process
2692	Manifest Windows.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	4011c945eab342dfa34f753fb98a8903.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	4011c945eab342dfa34f753fb98a8903.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly\Desktop.ini	4011c945eab342dfa34f753fb98a8903.exe
File opened for modification	C:\Windows\assembly	4011c945eab342dfa34f753fb98a8903.exe
File created	C:\Windows\assembly\Desktop.ini	4011c945eab342dfa34f753fb98a8903.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1872 wrote to memory of 2692	1872	4011c945eab342dfa34f753fb98a8903.exe	101
PID 1872 wrote to memory of 2692	1872	4011c945eab342dfa34f753fb98a8903.exe	101

C:\Users\Admin\AppData\Local\Temp\4011c945eab342dfa34f753fb98a8903.exe
"C:\Users\Admin\AppData\Local\Temp\4011c945eab342dfa34f753fb98a8903.exe"
1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1872
- C:\ProgramData\Manifest Windows.exe
  "C:\ProgramData\Manifest Windows.exe"
  2⤵
  - Executes dropped EXE
  PID:2692
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\ProgramData\Manifest Windows.exe" "Manifest Windows.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:2292

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1872-10-0x000000001C2F0000-0x000000001C7BE000-memory.dmp

Filesize
4.8MB

Download
memory/1872-24-0x00007FFDCAD40000-0x00007FFDCB6E1000-memory.dmp

Filesize
9.6MB

Download
memory/1872-1-0x0000000001520000-0x0000000001530000-memory.dmp

Filesize
64KB

Download
memory/1872-6-0x000000001BCF0000-0x000000001BD96000-memory.dmp

Filesize
664KB

Download
memory/1872-0-0x00007FFDCAD40000-0x00007FFDCB6E1000-memory.dmp

Filesize
9.6MB

Download
memory/1872-7-0x00007FFDCAD40000-0x00007FFDCB6E1000-memory.dmp

Filesize
9.6MB

Download
memory/1872-8-0x0000000001520000-0x0000000001530000-memory.dmp

Filesize
64KB

Download
memory/1872-9-0x000000001BC10000-0x000000001BC1E000-memory.dmp

Filesize
56KB

Download
memory/1872-5-0x00007FFDCAD40000-0x00007FFDCB6E1000-memory.dmp

Filesize
9.6MB

Download
memory/1872-2-0x0000000001430000-0x0000000001442000-memory.dmp

Filesize
72KB

Download
memory/2692-36-0x0000000000EB0000-0x0000000000EC0000-memory.dmp

Filesize
64KB

Download
memory/2692-27-0x00007FFDCAD40000-0x00007FFDCB6E1000-memory.dmp

Filesize
9.6MB

Download
memory/2692-25-0x00007FFDCAD40000-0x00007FFDCB6E1000-memory.dmp

Filesize
9.6MB

Download
memory/2692-29-0x0000000000EB0000-0x0000000000EC0000-memory.dmp

Filesize
64KB

Download
memory/2692-28-0x00007FFDCAD40000-0x00007FFDCB6E1000-memory.dmp

Filesize
9.6MB

Download
memory/2692-33-0x000000001C4E0000-0x000000001C57C000-memory.dmp

Filesize
624KB

Download
memory/2692-34-0x00000000011B0000-0x00000000011B8000-memory.dmp

Filesize
32KB

Download
memory/2692-35-0x0000000000EB0000-0x0000000000EC0000-memory.dmp

Filesize
64KB

Download
memory/2692-26-0x0000000000EB0000-0x0000000000EC0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads