njrat | 5ca60c222235db8fcffbd475e7ed5a8d477e7ad251c30c289de58f743750f2e3

General

Target

1e39c64ba850b0298ab04b9e9c2f69fc.exe
Size

402KB
MD5

1e39c64ba850b0298ab04b9e9c2f69fc
SHA1

1e5f7671e54aa8597ffb3af7fb13e2d0aeaee318
SHA256

5ca60c222235db8fcffbd475e7ed5a8d477e7ad251c30c289de58f743750f2e3
SHA512

e849cd145f019820b188868c04b3b01bf0f072695350b6fc69025831a68c368979ae7a5756f72a13f7903305dbe1df6fac6f993c63921ff6c32b541580a989b8
SSDEEP

6144:zmaKVBGmE84IMNv55giU0pKiFYHxfx15RvOagakZBxkTN2gmeGcFnVQb/DAYbDgl:oSmLAuEY71fviagATFmebVQDcYc5

Score

10^/10

njrat pdf evasion persistence trojan upx

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

pdf

C2

hhhmach.ddns.net:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes

reg_key
5cd8f17f4086744065eb0992a09e05a2
splitter
|'|'|

Signatures

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

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Windows Service

T1543.003

pid	Process
2032	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5cd8f17f4086744065eb0992a09e05a2.exe	Trojan.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5cd8f17f4086744065eb0992a09e05a2.exe	Trojan.exe

Executes dropped EXE 2 IoCs

pid	Process
2820	test.exe
2752	Trojan.exe

Loads dropped DLL 2 IoCs

pid	Process
2320	cmd.exe
2820	test.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1204-0-0x0000000000400000-0x00000000004FB000-memory.dmp	upx
behavioral1/memory/1204-19-0x0000000000400000-0x00000000004FB000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\5cd8f17f4086744065eb0992a09e05a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.exe\" .."	Trojan.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\5cd8f17f4086744065eb0992a09e05a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.exe\" .."	Trojan.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 33 IoCs

pid	Process
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe
2752	Trojan.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2752	Trojan.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1204 wrote to memory of 2320	1204	1e39c64ba850b0298ab04b9e9c2f69fc.exe	29
PID 1204 wrote to memory of 2320	1204	1e39c64ba850b0298ab04b9e9c2f69fc.exe	29
PID 1204 wrote to memory of 2320	1204	1e39c64ba850b0298ab04b9e9c2f69fc.exe	29
PID 1204 wrote to memory of 2320	1204	1e39c64ba850b0298ab04b9e9c2f69fc.exe	29
PID 2320 wrote to memory of 2820	2320	cmd.exe	30
PID 2320 wrote to memory of 2820	2320	cmd.exe	30
PID 2320 wrote to memory of 2820	2320	cmd.exe	30
PID 2320 wrote to memory of 2820	2320	cmd.exe	30
PID 2820 wrote to memory of 2752	2820	test.exe	31
PID 2820 wrote to memory of 2752	2820	test.exe	31
PID 2820 wrote to memory of 2752	2820	test.exe	31
PID 2820 wrote to memory of 2752	2820	test.exe	31
PID 2752 wrote to memory of 2032	2752	Trojan.exe	32
PID 2752 wrote to memory of 2032	2752	Trojan.exe	32
PID 2752 wrote to memory of 2032	2752	Trojan.exe	32
PID 2752 wrote to memory of 2032	2752	Trojan.exe	32

C:\Users\Admin\AppData\Local\Temp\1e39c64ba850b0298ab04b9e9c2f69fc.exe
"C:\Users\Admin\AppData\Local\Temp\1e39c64ba850b0298ab04b9e9c2f69fc.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c test.exe
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2320
- - C:\Users\Admin\AppData\Local\Temp\test.exe
    test.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:2820
  - - C:\Users\Admin\AppData\Local\Temp\Trojan.exe
      "C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
      4⤵
      Drops startup file
      Executes dropped EXE
      Adds Run key to start application
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2752
    - - C:\Windows\SysWOW64\netsh.exe
        
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE
        5⤵
        Modifies Windows Firewall
        
        PID:2032

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\test.exe

Filesize
78KB

MD5
42c5854aa0709d8bf6c28ea82c67b9a5

SHA1
124ea473f0572009de85a4a46f361109f4fae7d6

SHA256
71e1add662041fee9ff0ddf0139154cf006538559af45f34047aac91efb1b8eb

SHA512
c0f4412f2237138b5b66ecc285d7f44bacd67ae23feb0a55561cd4f7850ee6b0fd1b1dac3d2725ed4932aaf155b0fbda284a69b07594789bdb4cbcf0f499d95a

Download Submit
memory/1204-0-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download
memory/1204-19-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download
memory/2752-15-0x0000000074D90000-0x000000007533B000-memory.dmp

Filesize
5.7MB

Download
memory/2752-17-0x0000000074D90000-0x000000007533B000-memory.dmp

Filesize
5.7MB

Download
memory/2752-18-0x0000000000920000-0x0000000000960000-memory.dmp

Filesize
256KB

Download
memory/2752-21-0x0000000074D90000-0x000000007533B000-memory.dmp

Filesize
5.7MB

Download
memory/2752-22-0x0000000000920000-0x0000000000960000-memory.dmp

Filesize
256KB

Download
memory/2820-5-0x0000000074D90000-0x000000007533B000-memory.dmp

Filesize
5.7MB

Download
memory/2820-6-0x0000000074D90000-0x000000007533B000-memory.dmp

Filesize
5.7MB

Download
memory/2820-7-0x0000000000C80000-0x0000000000CC0000-memory.dmp

Filesize
256KB

Download
memory/2820-16-0x0000000074D90000-0x000000007533B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads