njrat | 4e7678bfa4bd0656d406b6452f501cb54fcc6ddc7c9debde66fda39415c2222f

General

Target

4e7678bfa4bd0656d406b6452f501cb54fcc6ddc7c9debde66fda39415c2222f.exe
Size

233KB
MD5

0e9bbf130c496a3ab72cd769e8cd539a
SHA1

a403efd98438432f1beaab845f45b6aa0f1e4d98
SHA256

4e7678bfa4bd0656d406b6452f501cb54fcc6ddc7c9debde66fda39415c2222f
SHA512

5fa6d5ffe5b22104e522041e31d006b78313b9534512030b30698c87ef3bfbe898339bdd7c3a5c02111a7fa919f678c0bb2e87991ff684f5c50633ab08128cce

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

tradingrecovery.duckdns.org:1177

Mutex

dbbf1042b66c5304a783d4eff25120c4

Attributes

reg_key
dbbf1042b66c5304a783d4eff25120c4
splitter
|'|'|

Signatures

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

Processes:

Runtime Broker.exe

pid process

804 Runtime Broker.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

Drops startup file 2 IoCs

Processes:

Runtime Broker.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dbbf1042b66c5304a783d4eff25120c4.exe	Runtime Broker.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dbbf1042b66c5304a783d4eff25120c4.exe	Runtime Broker.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Runtime Broker.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run\dbbf1042b66c5304a783d4eff25120c4 = "\"C:\\Users\\Admin\\AppData\\Roaming\\Runtime Broker.exe\" .."	Runtime Broker.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\dbbf1042b66c5304a783d4eff25120c4 = "\"C:\\Users\\Admin\\AppData\\Roaming\\Runtime Broker.exe\" .."	Runtime Broker.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 30 IoCs

Processes:

Runtime Broker.exe

pid	process
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe
804	Runtime Broker.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Runtime Broker.exe

description pid process

Token: SeDebugPrivilege 804 Runtime Broker.exe

description	pid	process
Token: SeDebugPrivilege	804	Runtime Broker.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

4e7678bfa4bd0656d406b6452f501cb54fcc6ddc7c9debde66fda39415c2222f.exeRuntime Broker.exe

description	pid	process	target process
PID 3972 wrote to memory of 804	3972	4e7678bfa4bd0656d406b6452f501cb54fcc6ddc7c9debde66fda39415c2222f.exe	Runtime Broker.exe
PID 3972 wrote to memory of 804	3972	4e7678bfa4bd0656d406b6452f501cb54fcc6ddc7c9debde66fda39415c2222f.exe	Runtime Broker.exe
PID 3972 wrote to memory of 804	3972	4e7678bfa4bd0656d406b6452f501cb54fcc6ddc7c9debde66fda39415c2222f.exe	Runtime Broker.exe
PID 804 wrote to memory of 388	804	Runtime Broker.exe	netsh.exe
PID 804 wrote to memory of 388	804	Runtime Broker.exe	netsh.exe
PID 804 wrote to memory of 388	804	Runtime Broker.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\4e7678bfa4bd0656d406b6452f501cb54fcc6ddc7c9debde66fda39415c2222f.exe
"C:\Users\Admin\AppData\Local\Temp\4e7678bfa4bd0656d406b6452f501cb54fcc6ddc7c9debde66fda39415c2222f.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3972
- C:\Users\Admin\AppData\Roaming\Runtime Broker.exe
  "C:\Users\Admin\AppData\Roaming\Runtime Broker.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:804
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Runtime Broker.exe" "Runtime Broker.exe" ENABLE
    3⤵
    PID:388

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

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Downloads

C:\Users\Admin\AppData\Roaming\Runtime Broker.exe

MD5
0e9bbf130c496a3ab72cd769e8cd539a

SHA1
a403efd98438432f1beaab845f45b6aa0f1e4d98

SHA256
4e7678bfa4bd0656d406b6452f501cb54fcc6ddc7c9debde66fda39415c2222f

SHA512
5fa6d5ffe5b22104e522041e31d006b78313b9534512030b30698c87ef3bfbe898339bdd7c3a5c02111a7fa919f678c0bb2e87991ff684f5c50633ab08128cce

Download Submit
C:\Users\Admin\AppData\Roaming\Runtime Broker.exe

MD5
0e9bbf130c496a3ab72cd769e8cd539a

SHA1
a403efd98438432f1beaab845f45b6aa0f1e4d98

SHA256
4e7678bfa4bd0656d406b6452f501cb54fcc6ddc7c9debde66fda39415c2222f

SHA512
5fa6d5ffe5b22104e522041e31d006b78313b9534512030b30698c87ef3bfbe898339bdd7c3a5c02111a7fa919f678c0bb2e87991ff684f5c50633ab08128cce

Download Submit
memory/388-129-0x0000000000000000-mapping.dmp

Download
memory/804-130-0x0000000004B40000-0x0000000004B41000-memory.dmp

Filesize
4KB

Download
memory/804-121-0x0000000000000000-mapping.dmp

Download
memory/804-131-0x0000000004BF0000-0x0000000004BF1000-memory.dmp

Filesize
4KB

Download
memory/804-132-0x0000000004B30000-0x0000000004B31000-memory.dmp

Filesize
4KB

Download
memory/804-133-0x0000000004B43000-0x0000000004B45000-memory.dmp

Filesize
8KB

Download
memory/3972-120-0x0000000005330000-0x0000000005331000-memory.dmp

Filesize
4KB

Download
memory/3972-119-0x0000000005840000-0x0000000005841000-memory.dmp

Filesize
4KB

Download
memory/3972-118-0x0000000005120000-0x0000000005128000-memory.dmp

Filesize
32KB

Download
memory/3972-117-0x00000000051B0000-0x00000000051B1000-memory.dmp

Filesize
4KB

Download
memory/3972-115-0x0000000000990000-0x0000000000991000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads