njrat | ba53f8ab7eafe61356f7ca7dd17417505feec931127c5577bd6723a1693c2aa3

General

Target

ba53f8ab7eafe61356f7ca7dd17417505feec931127c5577bd6723a1693c2aa3.exe
Size

96KB
MD5

64bf3ee8f8e7ac21716f4c67f7c72fe0
SHA1

e63679dc7b7d7d01f9e09f708b8ab9db3e5e45e9
SHA256

ba53f8ab7eafe61356f7ca7dd17417505feec931127c5577bd6723a1693c2aa3
SHA512

ba1e5d901ff29269fd0304ac5c70e29f46d12bf38a5262f589fb8435e89d8024532cfb7ace139cdbb738800de0129dfcce99659ffa765069a7c8a4c3a557ec72
SSDEEP

1536:L8ppt6jk1Gn/dcVHAWF1+bmc7L8UB7aFmWg02vmd0cuvM3nrYk9PhFUV7R8pg:wppt646f+1+Vfay0imd0NCrh9PhGeg

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
4684	chrome.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
4696	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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	ba53f8ab7eafe61356f7ca7dd17417505feec931127c5577bd6723a1693c2aa3.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7a7f54bd68008d730d8b5545508f0225.exe	chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7a7f54bd68008d730d8b5545508f0225.exe	chrome.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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7a7f54bd68008d730d8b5545508f0225 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\chrome.exe\" .."	chrome.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\7a7f54bd68008d730d8b5545508f0225 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\chrome.exe\" .."	chrome.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	4684	chrome.exe
Token: 33	4684	chrome.exe
Token: SeIncBasePriorityPrivilege	4684	chrome.exe
Token: 33	4684	chrome.exe
Token: SeIncBasePriorityPrivilege	4684	chrome.exe
Token: 33	4684	chrome.exe
Token: SeIncBasePriorityPrivilege	4684	chrome.exe
Token: 33	4684	chrome.exe
Token: SeIncBasePriorityPrivilege	4684	chrome.exe
Token: 33	4684	chrome.exe
Token: SeIncBasePriorityPrivilege	4684	chrome.exe
Token: 33	4684	chrome.exe
Token: SeIncBasePriorityPrivilege	4684	chrome.exe
Token: 33	4684	chrome.exe
Token: SeIncBasePriorityPrivilege	4684	chrome.exe
Token: 33	4684	chrome.exe
Token: SeIncBasePriorityPrivilege	4684	chrome.exe
Token: 33	4684	chrome.exe
Token: SeIncBasePriorityPrivilege	4684	chrome.exe
Token: 33	4684	chrome.exe
Token: SeIncBasePriorityPrivilege	4684	chrome.exe
Token: 33	4684	chrome.exe
Token: SeIncBasePriorityPrivilege	4684	chrome.exe
Token: 33	4684	chrome.exe
Token: SeIncBasePriorityPrivilege	4684	chrome.exe
Token: 33	4684	chrome.exe
Token: SeIncBasePriorityPrivilege	4684	chrome.exe
Token: 33	4684	chrome.exe
Token: SeIncBasePriorityPrivilege	4684	chrome.exe
Token: 33	4684	chrome.exe
Token: SeIncBasePriorityPrivilege	4684	chrome.exe
Token: 33	4684	chrome.exe
Token: SeIncBasePriorityPrivilege	4684	chrome.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1948 wrote to memory of 4684	1948	ba53f8ab7eafe61356f7ca7dd17417505feec931127c5577bd6723a1693c2aa3.exe	91
PID 1948 wrote to memory of 4684	1948	ba53f8ab7eafe61356f7ca7dd17417505feec931127c5577bd6723a1693c2aa3.exe	91
PID 1948 wrote to memory of 4684	1948	ba53f8ab7eafe61356f7ca7dd17417505feec931127c5577bd6723a1693c2aa3.exe	91
PID 4684 wrote to memory of 4696	4684	chrome.exe	94
PID 4684 wrote to memory of 4696	4684	chrome.exe	94
PID 4684 wrote to memory of 4696	4684	chrome.exe	94

C:\Users\Admin\AppData\Local\Temp\ba53f8ab7eafe61356f7ca7dd17417505feec931127c5577bd6723a1693c2aa3.exe
"C:\Users\Admin\AppData\Local\Temp\ba53f8ab7eafe61356f7ca7dd17417505feec931127c5577bd6723a1693c2aa3.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Users\Admin\AppData\Local\Temp\chrome.exe
  "C:\Users\Admin\AppData\Local\Temp\chrome.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4684
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\chrome.exe" "chrome.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:4696

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\chrome.exe

Filesize
96KB

MD5
64bf3ee8f8e7ac21716f4c67f7c72fe0

SHA1
e63679dc7b7d7d01f9e09f708b8ab9db3e5e45e9

SHA256
ba53f8ab7eafe61356f7ca7dd17417505feec931127c5577bd6723a1693c2aa3

SHA512
ba1e5d901ff29269fd0304ac5c70e29f46d12bf38a5262f589fb8435e89d8024532cfb7ace139cdbb738800de0129dfcce99659ffa765069a7c8a4c3a557ec72

Download Submit
C:\Users\Admin\AppData\Local\Temp\chrome.exe

Filesize
96KB

MD5
64bf3ee8f8e7ac21716f4c67f7c72fe0

SHA1
e63679dc7b7d7d01f9e09f708b8ab9db3e5e45e9

SHA256
ba53f8ab7eafe61356f7ca7dd17417505feec931127c5577bd6723a1693c2aa3

SHA512
ba1e5d901ff29269fd0304ac5c70e29f46d12bf38a5262f589fb8435e89d8024532cfb7ace139cdbb738800de0129dfcce99659ffa765069a7c8a4c3a557ec72

Download Submit
memory/1948-132-0x0000000074F10000-0x00000000754C1000-memory.dmp

Filesize
5.7MB

Download
memory/1948-136-0x0000000074F10000-0x00000000754C1000-memory.dmp

Filesize
5.7MB

Download
memory/4684-137-0x0000000074F10000-0x00000000754C1000-memory.dmp

Filesize
5.7MB

Download
memory/4684-139-0x0000000074F10000-0x00000000754C1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing