njrat | b166e1947e977864e55349d8358197927a7f7ee707ddf46acf027b7cf109bf98

General

Target

756b5288c29c75f8a689cf1010ddbe25.exe
Size

37KB
MD5

756b5288c29c75f8a689cf1010ddbe25
SHA1

6b0f81673af9c4bb6dc6f7fd275679ebfa46a756
SHA256

b166e1947e977864e55349d8358197927a7f7ee707ddf46acf027b7cf109bf98
SHA512

a515d02bda13ea9b06287a5a73cf08aef0d9907a1800cede4f3e314597264475ceccaa3f4e3c0fe769aaef0ee6f52d1cf1dbb98a80a22a83cd0582159311df8e

Score

10^/10

njrat pidor evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

pidor

C2

8.tcp.ngrok.io:12086:12086

Mutex

1b6ef007d35ce987ac4dec265faa179b

Attributes

reg_key
1b6ef007d35ce987ac4dec265faa179b
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

952 svchost.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

Drops startup file 2 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1b6ef007d35ce987ac4dec265faa179b.exe	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1b6ef007d35ce987ac4dec265faa179b.exe	svchost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\1b6ef007d35ce987ac4dec265faa179b = "\"C:\\Windows\\svchost.exe\" .."	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\1b6ef007d35ce987ac4dec265faa179b = "\"C:\\Windows\\svchost.exe\" .."	svchost.exe

Drops autorun.inf file 1 TTPs
Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media
T1091

Drops file in Windows directory 3 IoCs

Processes:

756b5288c29c75f8a689cf1010ddbe25.exesvchost.exe

description	ioc	process
File created	C:\Windows\svchost.exe	756b5288c29c75f8a689cf1010ddbe25.exe
File opened for modification	C:\Windows\svchost.exe	756b5288c29c75f8a689cf1010ddbe25.exe
File opened for modification	C:\Windows\svchost.exe	svchost.exe

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

System Information Discovery
T1082
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

828 taskkill.exe

pid	process
828	taskkill.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

svchost.exe

pid	process
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

svchost.exe

pid process

952 svchost.exe

Suspicious use of AdjustPrivilegeToken 34 IoCs

Processes:

svchost.exetaskkill.exe

description	pid	process
Token: SeDebugPrivilege	952	svchost.exe
Token: SeDebugPrivilege	828	taskkill.exe
Token: 33	952	svchost.exe
Token: SeIncBasePriorityPrivilege	952	svchost.exe
Token: 33	952	svchost.exe
Token: SeIncBasePriorityPrivilege	952	svchost.exe
Token: 33	952	svchost.exe
Token: SeIncBasePriorityPrivilege	952	svchost.exe
Token: 33	952	svchost.exe
Token: SeIncBasePriorityPrivilege	952	svchost.exe
Token: 33	952	svchost.exe
Token: SeIncBasePriorityPrivilege	952	svchost.exe
Token: 33	952	svchost.exe
Token: SeIncBasePriorityPrivilege	952	svchost.exe
Token: 33	952	svchost.exe
Token: SeIncBasePriorityPrivilege	952	svchost.exe
Token: 33	952	svchost.exe
Token: SeIncBasePriorityPrivilege	952	svchost.exe
Token: 33	952	svchost.exe
Token: SeIncBasePriorityPrivilege	952	svchost.exe
Token: 33	952	svchost.exe
Token: SeIncBasePriorityPrivilege	952	svchost.exe
Token: 33	952	svchost.exe
Token: SeIncBasePriorityPrivilege	952	svchost.exe
Token: 33	952	svchost.exe
Token: SeIncBasePriorityPrivilege	952	svchost.exe
Token: 33	952	svchost.exe
Token: SeIncBasePriorityPrivilege	952	svchost.exe
Token: 33	952	svchost.exe
Token: SeIncBasePriorityPrivilege	952	svchost.exe
Token: 33	952	svchost.exe
Token: SeIncBasePriorityPrivilege	952	svchost.exe
Token: 33	952	svchost.exe
Token: SeIncBasePriorityPrivilege	952	svchost.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

756b5288c29c75f8a689cf1010ddbe25.exesvchost.exe

description	pid	process	target process
PID 960 wrote to memory of 952	960	756b5288c29c75f8a689cf1010ddbe25.exe	svchost.exe
PID 960 wrote to memory of 952	960	756b5288c29c75f8a689cf1010ddbe25.exe	svchost.exe
PID 960 wrote to memory of 952	960	756b5288c29c75f8a689cf1010ddbe25.exe	svchost.exe
PID 960 wrote to memory of 952	960	756b5288c29c75f8a689cf1010ddbe25.exe	svchost.exe
PID 952 wrote to memory of 1436	952	svchost.exe	netsh.exe
PID 952 wrote to memory of 1436	952	svchost.exe	netsh.exe
PID 952 wrote to memory of 1436	952	svchost.exe	netsh.exe
PID 952 wrote to memory of 1436	952	svchost.exe	netsh.exe
PID 952 wrote to memory of 828	952	svchost.exe	taskkill.exe
PID 952 wrote to memory of 828	952	svchost.exe	taskkill.exe
PID 952 wrote to memory of 828	952	svchost.exe	taskkill.exe
PID 952 wrote to memory of 828	952	svchost.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\756b5288c29c75f8a689cf1010ddbe25.exe
"C:\Users\Admin\AppData\Local\Temp\756b5288c29c75f8a689cf1010ddbe25.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:960

C:\Windows\svchost.exe
"C:\Windows\svchost.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:952

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Windows\svchost.exe" "svchost.exe" ENABLE
3⤵
PID:1436

C:\Windows\SysWOW64\taskkill.exe
taskkill /F /IM Exsample.exe
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:828

Network

MITRE ATT&CK Enterprise v6

Initial Access

Replication Through Removable Media

1

T1091

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

Replication Through Removable Media

1

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\svchost.exe

MD5
756b5288c29c75f8a689cf1010ddbe25

SHA1
6b0f81673af9c4bb6dc6f7fd275679ebfa46a756

SHA256
b166e1947e977864e55349d8358197927a7f7ee707ddf46acf027b7cf109bf98

SHA512
a515d02bda13ea9b06287a5a73cf08aef0d9907a1800cede4f3e314597264475ceccaa3f4e3c0fe769aaef0ee6f52d1cf1dbb98a80a22a83cd0582159311df8e

Download Submit
C:\Windows\svchost.exe

MD5
756b5288c29c75f8a689cf1010ddbe25

SHA1
6b0f81673af9c4bb6dc6f7fd275679ebfa46a756

SHA256
b166e1947e977864e55349d8358197927a7f7ee707ddf46acf027b7cf109bf98

SHA512
a515d02bda13ea9b06287a5a73cf08aef0d9907a1800cede4f3e314597264475ceccaa3f4e3c0fe769aaef0ee6f52d1cf1dbb98a80a22a83cd0582159311df8e

Download Submit
memory/828-63-0x0000000000000000-mapping.dmp

Download
memory/952-57-0x0000000000000000-mapping.dmp

Download
memory/952-61-0x0000000000B60000-0x0000000000B61000-memory.dmp

Filesize
4KB

Download
memory/960-55-0x00000000762C1000-0x00000000762C3000-memory.dmp

Filesize
8KB

Download
memory/960-56-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/1436-62-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads