njrat | ac8a1912f246921d24eee850f76b16c24e917749f97a625634a1ee825df98bc1

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
24-12-2023 11:46

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General

Target

ac8a1912f246921d24eee850f76b16c24e917749f97a625634a1ee825df98bc1.exe
Size

37KB
MD5

1379dcf7afe3f270834a611a19403963
SHA1

a9c34f014fc32cc5480df9dc1d1cf56732d60d6d
SHA256

ac8a1912f246921d24eee850f76b16c24e917749f97a625634a1ee825df98bc1
SHA512

2fa5c178b5e77647c2ffa5a11d12412f10bb45dac7a923ea3932b4dba7fd56a9c94e06f33a5f01636bc39abfeb7d9f287331af75dd6bd148c7e03355651e2859
SSDEEP

384:hYDQZCiT9SLhHGhlbJcycPxvQJIwX5iwaCBDrAF+rMRTyN/0L+EcoinblneHQM3j:uIDrJ/cPxoIw0NChrM+rMRa8NuO+tQ

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

necessary-cement.gl.at.ply.gg:50722

Mutex

1e47435d5e45b5b0c96eb1651a6c9cf8

Attributes

reg_key
1e47435d5e45b5b0c96eb1651a6c9cf8
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
2872	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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	ac8a1912f246921d24eee850f76b16c24e917749f97a625634a1ee825df98bc1.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1e47435d5e45b5b0c96eb1651a6c9cf8.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1e47435d5e45b5b0c96eb1651a6c9cf8.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
3560	server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1e47435d5e45b5b0c96eb1651a6c9cf8 = "\"C:\\Users\\Admin\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\1e47435d5e45b5b0c96eb1651a6c9cf8 = "\"C:\\Users\\Admin\\server.exe\" .."	server.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe
3560	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3560	server.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3560	server.exe
Token: 33	3560	server.exe
Token: SeIncBasePriorityPrivilege	3560	server.exe
Token: 33	3560	server.exe
Token: SeIncBasePriorityPrivilege	3560	server.exe
Token: 33	3560	server.exe
Token: SeIncBasePriorityPrivilege	3560	server.exe
Token: 33	3560	server.exe
Token: SeIncBasePriorityPrivilege	3560	server.exe
Token: 33	3560	server.exe
Token: SeIncBasePriorityPrivilege	3560	server.exe
Token: 33	3560	server.exe
Token: SeIncBasePriorityPrivilege	3560	server.exe
Token: 33	3560	server.exe
Token: SeIncBasePriorityPrivilege	3560	server.exe
Token: 33	3560	server.exe
Token: SeIncBasePriorityPrivilege	3560	server.exe
Token: 33	3560	server.exe
Token: SeIncBasePriorityPrivilege	3560	server.exe
Token: 33	3560	server.exe
Token: SeIncBasePriorityPrivilege	3560	server.exe
Token: 33	3560	server.exe
Token: SeIncBasePriorityPrivilege	3560	server.exe
Token: 33	3560	server.exe
Token: SeIncBasePriorityPrivilege	3560	server.exe
Token: 33	3560	server.exe
Token: SeIncBasePriorityPrivilege	3560	server.exe
Token: 33	3560	server.exe
Token: SeIncBasePriorityPrivilege	3560	server.exe
Token: 33	3560	server.exe
Token: SeIncBasePriorityPrivilege	3560	server.exe
Token: 33	3560	server.exe
Token: SeIncBasePriorityPrivilege	3560	server.exe
Token: 33	3560	server.exe
Token: SeIncBasePriorityPrivilege	3560	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1436 wrote to memory of 3560	1436	ac8a1912f246921d24eee850f76b16c24e917749f97a625634a1ee825df98bc1.exe	96
PID 1436 wrote to memory of 3560	1436	ac8a1912f246921d24eee850f76b16c24e917749f97a625634a1ee825df98bc1.exe	96
PID 1436 wrote to memory of 3560	1436	ac8a1912f246921d24eee850f76b16c24e917749f97a625634a1ee825df98bc1.exe	96
PID 3560 wrote to memory of 2872	3560	server.exe	100
PID 3560 wrote to memory of 2872	3560	server.exe	100
PID 3560 wrote to memory of 2872	3560	server.exe	100

C:\Users\Admin\AppData\Local\Temp\ac8a1912f246921d24eee850f76b16c24e917749f97a625634a1ee825df98bc1.exe
"C:\Users\Admin\AppData\Local\Temp\ac8a1912f246921d24eee850f76b16c24e917749f97a625634a1ee825df98bc1.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1436
- C:\Users\Admin\server.exe
  "C:\Users\Admin\server.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:3560
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:2872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Modify Registry

T1112

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

C:\Users\Admin\server.exe

Filesize
20KB

MD5
642564c27abbfccbea687b317ea3b633

SHA1
6c848701bbb3e5d9f7a293dc8a5d2b71a901ab8c

SHA256
a4cc4da4ce907203d954dc412e1c78992d80bce0eafaa30201436ad749d49f73

SHA512
0e7900b0c17d55e54a69331caf12e2ddc77d7a820031eaa643dfaa737943ae3d322695c83e45a714ff57db9012f4d1a97278266d95dd20fef69503393ec20593

Download Submit
C:\Users\Admin\server.exe

Filesize
37KB

MD5
1379dcf7afe3f270834a611a19403963

SHA1
a9c34f014fc32cc5480df9dc1d1cf56732d60d6d

SHA256
ac8a1912f246921d24eee850f76b16c24e917749f97a625634a1ee825df98bc1

SHA512
2fa5c178b5e77647c2ffa5a11d12412f10bb45dac7a923ea3932b4dba7fd56a9c94e06f33a5f01636bc39abfeb7d9f287331af75dd6bd148c7e03355651e2859

Download Submit
memory/1436-2-0x00000000747B0000-0x0000000074D61000-memory.dmp

Filesize
5.7MB

Download
memory/1436-1-0x0000000001430000-0x0000000001440000-memory.dmp

Filesize
64KB

Download
memory/1436-0-0x00000000747B0000-0x0000000074D61000-memory.dmp

Filesize
5.7MB

Download
memory/1436-21-0x00000000747B0000-0x0000000074D61000-memory.dmp

Filesize
5.7MB

Download
memory/3560-22-0x00000000747B0000-0x0000000074D61000-memory.dmp

Filesize
5.7MB

Download
memory/3560-23-0x0000000001430000-0x0000000001440000-memory.dmp

Filesize
64KB

Download
memory/3560-25-0x00000000747B0000-0x0000000074D61000-memory.dmp

Filesize
5.7MB

Download