njrat | 2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e

General

Target

2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e.exe
Size

28KB
MD5

83646dfbc227fefc7fc941feca328c20
SHA1

55ea993d57dfbef0b32958576ac861393c7dd3f1
SHA256

2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e
SHA512

d9c196fc333d625b59e49ebb7b9515fffb75230f3cba9190f8b3d78bd4e74eb65f15a87c344ed9256cbcc99b8ae325c91c0783b4fda1e22208b4dc7e80ca6426
SSDEEP

384:h8eUq6Z/n5wT9MZ5ZIcq0yHBxcUKHix4UV+Kq8QqEMM8Jwj2a0LE2sfvbilMxwkq:2p3le+5ZTyH74UVWX8Jwh0LWXbZm

Score

10^/10

njrat evasion persistence trojan

Malware Config

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
1964	Explorer.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
736	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ee05d9a399a6ac91c51dd837987ab9c4.exe	Explorer.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ee05d9a399a6ac91c51dd837987ab9c4.exe	Explorer.exe

Loads dropped DLL 1 IoCs

pid	Process
1344	2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ee05d9a399a6ac91c51dd837987ab9c4 = "\"C:\\Users\\Admin\\Explorer.exe\" .."	Explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ee05d9a399a6ac91c51dd837987ab9c4 = "\"C:\\Users\\Admin\\Explorer.exe\" .."	Explorer.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
1964	Explorer.exe
1964	Explorer.exe
1964	Explorer.exe
1964	Explorer.exe
1964	Explorer.exe
1964	Explorer.exe
1964	Explorer.exe
1964	Explorer.exe
1964	Explorer.exe
1964	Explorer.exe
1964	Explorer.exe
1964	Explorer.exe
1964	Explorer.exe
1964	Explorer.exe
1964	Explorer.exe
1964	Explorer.exe
1964	Explorer.exe
1964	Explorer.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1964	Explorer.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1344 wrote to memory of 1964	1344	2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e.exe	26
PID 1344 wrote to memory of 1964	1344	2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e.exe	26
PID 1344 wrote to memory of 1964	1344	2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e.exe	26
PID 1344 wrote to memory of 1964	1344	2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e.exe	26
PID 1964 wrote to memory of 736	1964	Explorer.exe	27
PID 1964 wrote to memory of 736	1964	Explorer.exe	27
PID 1964 wrote to memory of 736	1964	Explorer.exe	27
PID 1964 wrote to memory of 736	1964	Explorer.exe	27

C:\Users\Admin\AppData\Local\Temp\2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e.exe
"C:\Users\Admin\AppData\Local\Temp\2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1344
- C:\Users\Admin\Explorer.exe
  "C:\Users\Admin\Explorer.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:1964
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\Explorer.exe" "Explorer.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:736

Network

MITRE ATT&CK Enterprise 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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\Explorer.exe

Filesize
28KB

MD5
83646dfbc227fefc7fc941feca328c20

SHA1
55ea993d57dfbef0b32958576ac861393c7dd3f1

SHA256
2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e

SHA512
d9c196fc333d625b59e49ebb7b9515fffb75230f3cba9190f8b3d78bd4e74eb65f15a87c344ed9256cbcc99b8ae325c91c0783b4fda1e22208b4dc7e80ca6426

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

Filesize
28KB

MD5
83646dfbc227fefc7fc941feca328c20

SHA1
55ea993d57dfbef0b32958576ac861393c7dd3f1

SHA256
2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e

SHA512
d9c196fc333d625b59e49ebb7b9515fffb75230f3cba9190f8b3d78bd4e74eb65f15a87c344ed9256cbcc99b8ae325c91c0783b4fda1e22208b4dc7e80ca6426

Download Submit
\Users\Admin\Explorer.exe

Filesize
28KB

MD5
83646dfbc227fefc7fc941feca328c20

SHA1
55ea993d57dfbef0b32958576ac861393c7dd3f1

SHA256
2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e

SHA512
d9c196fc333d625b59e49ebb7b9515fffb75230f3cba9190f8b3d78bd4e74eb65f15a87c344ed9256cbcc99b8ae325c91c0783b4fda1e22208b4dc7e80ca6426

Download Submit
memory/1344-54-0x0000000074F41000-0x0000000074F43000-memory.dmp

Filesize
8KB

Download
memory/1344-55-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/1344-61-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/1964-64-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/1964-65-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download

Analysis

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