njrat | c093b4cd2ad7f9eaf3dc918333d6df78753ff18f71b4ac722862a7d8cf44031a

General

Target

17e8b8ca2511a8273d049a478d075fc2.exe
Size

349KB
MD5

17e8b8ca2511a8273d049a478d075fc2
SHA1

3a473b8f7bbd4c878ffd9101482d164a6bbac60c
SHA256

c093b4cd2ad7f9eaf3dc918333d6df78753ff18f71b4ac722862a7d8cf44031a
SHA512

4094b0be82a62ac2d7ae08aeae432ba1a89ca9c40f7c5bfec19bbde529a8a0fdef56f19be63263936cab2dd429dbdd70df754d9ba35b45253597b99d15329429
SSDEEP

6144:jXXXXXXXXXXXXXXXXXfqJuiHivvWxzfHWojlNBXNU+Y07sxKCYsRCgPtZXzgAtxs:

Score

10^/10

njrat hack evasion trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Hack

C2

runtime.kro.kr:6522

Mutex

15ac00e92ea47b4f7ac4e4714b9affcb

Attributes

reg_key
15ac00e92ea47b4f7ac4e4714b9affcb
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Processes:

netsh.exe

pid process

2844 netsh.exe

pid	process
2844	netsh.exe

Drops startup file 2 IoCs

Processes:

dllhost.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\15ac00e92ea47b4f7ac4e4714b9affcb.exe	dllhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\15ac00e92ea47b4f7ac4e4714b9affcb.exe	dllhost.exe

Executes dropped EXE 1 IoCs

Processes:

dllhost.exe

pid process

2780 dllhost.exe
Loads dropped DLL 1 IoCs

Processes:

17e8b8ca2511a8273d049a478d075fc2.exe

pid process

2332 17e8b8ca2511a8273d049a478d075fc2.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2780	dllhost.exe

pid	process
2332	17e8b8ca2511a8273d049a478d075fc2.exe

Suspicious use of AdjustPrivilegeToken 31 IoCs

Processes:

dllhost.exe

description	pid	process
Token: SeDebugPrivilege	2780	dllhost.exe
Token: 33	2780	dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	dllhost.exe
Token: 33	2780	dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	dllhost.exe
Token: 33	2780	dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	dllhost.exe
Token: 33	2780	dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	dllhost.exe
Token: 33	2780	dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	dllhost.exe
Token: 33	2780	dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	dllhost.exe
Token: 33	2780	dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	dllhost.exe
Token: 33	2780	dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	dllhost.exe
Token: 33	2780	dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	dllhost.exe
Token: 33	2780	dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	dllhost.exe
Token: 33	2780	dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	dllhost.exe
Token: 33	2780	dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	dllhost.exe
Token: 33	2780	dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	dllhost.exe
Token: 33	2780	dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	dllhost.exe
Token: 33	2780	dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	dllhost.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

17e8b8ca2511a8273d049a478d075fc2.exedllhost.exe

description	pid	process	target process
PID 2332 wrote to memory of 2780	2332	17e8b8ca2511a8273d049a478d075fc2.exe	dllhost.exe
PID 2332 wrote to memory of 2780	2332	17e8b8ca2511a8273d049a478d075fc2.exe	dllhost.exe
PID 2332 wrote to memory of 2780	2332	17e8b8ca2511a8273d049a478d075fc2.exe	dllhost.exe
PID 2332 wrote to memory of 2780	2332	17e8b8ca2511a8273d049a478d075fc2.exe	dllhost.exe
PID 2780 wrote to memory of 2844	2780	dllhost.exe	netsh.exe
PID 2780 wrote to memory of 2844	2780	dllhost.exe	netsh.exe
PID 2780 wrote to memory of 2844	2780	dllhost.exe	netsh.exe
PID 2780 wrote to memory of 2844	2780	dllhost.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\17e8b8ca2511a8273d049a478d075fc2.exe
"C:\Users\Admin\AppData\Local\Temp\17e8b8ca2511a8273d049a478d075fc2.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2332

C:\Users\Admin\dllhost.exe
"C:\Users\Admin\dllhost.exe"
2⤵
- Drops startup file
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2780

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\dllhost.exe" "dllhost.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:2844

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\dllhost.exe
Filesize
349KB

MD5
17e8b8ca2511a8273d049a478d075fc2

SHA1
3a473b8f7bbd4c878ffd9101482d164a6bbac60c

SHA256
c093b4cd2ad7f9eaf3dc918333d6df78753ff18f71b4ac722862a7d8cf44031a

SHA512
4094b0be82a62ac2d7ae08aeae432ba1a89ca9c40f7c5bfec19bbde529a8a0fdef56f19be63263936cab2dd429dbdd70df754d9ba35b45253597b99d15329429

Download Submit
memory/2332-0-0x0000000000D10000-0x0000000000D6E000-memory.dmp

Filesize
376KB

Download
memory/2332-1-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/2332-2-0x00000000008E0000-0x00000000008EE000-memory.dmp

Filesize
56KB

Download
memory/2332-3-0x0000000000C80000-0x0000000000CC0000-memory.dmp

Filesize
256KB

Download
memory/2332-13-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/2780-11-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/2780-12-0x0000000000C20000-0x0000000000C7E000-memory.dmp

Filesize
376KB

Download
memory/2780-14-0x0000000004A50000-0x0000000004A90000-memory.dmp

Filesize
256KB

Download
memory/2780-16-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/2780-17-0x0000000004A50000-0x0000000004A90000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads