njrat | b7890705a6e507dbb904709af5606505feb599fc971ecd39bbe39d9517e37ad9

General

Target

7ae2d24b07648134fabc89eb932cd378.exe
Size

402KB
MD5

7ae2d24b07648134fabc89eb932cd378
SHA1

0a8b4238abf61240db5ca293be78ec09df128dc9
SHA256

b7890705a6e507dbb904709af5606505feb599fc971ecd39bbe39d9517e37ad9
SHA512

08d5871c580987970083506b0bc961a49043a415d6a20ec9df97c09c4721be3cf639715df94d3788bb2ad48f3b43208dfe88210ea82bf43ca027b9e5e2f6e901
SSDEEP

6144:lmaKVBGmE84IMNv55giU0pKiFYHxfx15RvOagakZBxkTN2gmeGcFnVQb/DAYbDgE:iSmLAuEY71fviagATFmebVQDcYcY

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 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2872	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
2768	test.exe
2844	Trojan.exe

Loads dropped DLL 2 IoCs

pid	Process
2692	cmd.exe
2768	test.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3028-0-0x0000000000400000-0x00000000004FB000-memory.dmp	upx
behavioral1/memory/3028-19-0x0000000000400000-0x00000000004FB000-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 32 IoCs

pid	Process
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe
2844	Trojan.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2844	Trojan.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 2692	3028	7ae2d24b07648134fabc89eb932cd378.exe	29
PID 3028 wrote to memory of 2692	3028	7ae2d24b07648134fabc89eb932cd378.exe	29
PID 3028 wrote to memory of 2692	3028	7ae2d24b07648134fabc89eb932cd378.exe	29
PID 3028 wrote to memory of 2692	3028	7ae2d24b07648134fabc89eb932cd378.exe	29
PID 2692 wrote to memory of 2768	2692	cmd.exe	30
PID 2692 wrote to memory of 2768	2692	cmd.exe	30
PID 2692 wrote to memory of 2768	2692	cmd.exe	30
PID 2692 wrote to memory of 2768	2692	cmd.exe	30
PID 2768 wrote to memory of 2844	2768	test.exe	31
PID 2768 wrote to memory of 2844	2768	test.exe	31
PID 2768 wrote to memory of 2844	2768	test.exe	31
PID 2768 wrote to memory of 2844	2768	test.exe	31
PID 2844 wrote to memory of 2872	2844	Trojan.exe	32
PID 2844 wrote to memory of 2872	2844	Trojan.exe	32
PID 2844 wrote to memory of 2872	2844	Trojan.exe	32
PID 2844 wrote to memory of 2872	2844	Trojan.exe	32

C:\Users\Admin\AppData\Local\Temp\7ae2d24b07648134fabc89eb932cd378.exe
"C:\Users\Admin\AppData\Local\Temp\7ae2d24b07648134fabc89eb932cd378.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c test.exe
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2692
- - C:\Users\Admin\AppData\Local\Temp\test.exe
    test.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:2768
  - - 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:2844
    - - 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:2872

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

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
78KB

MD5
42c5854aa0709d8bf6c28ea82c67b9a5

SHA1
124ea473f0572009de85a4a46f361109f4fae7d6

SHA256
71e1add662041fee9ff0ddf0139154cf006538559af45f34047aac91efb1b8eb

SHA512
c0f4412f2237138b5b66ecc285d7f44bacd67ae23feb0a55561cd4f7850ee6b0fd1b1dac3d2725ed4932aaf155b0fbda284a69b07594789bdb4cbcf0f499d95a

Download Submit
memory/2768-5-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/2768-6-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/2768-7-0x0000000002090000-0x00000000020D0000-memory.dmp

Filesize
256KB

Download
memory/2768-15-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/2844-16-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/2844-17-0x00000000021C0000-0x0000000002200000-memory.dmp

Filesize
256KB

Download
memory/2844-18-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/2844-21-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/2844-22-0x00000000021C0000-0x0000000002200000-memory.dmp

Filesize
256KB

Download
memory/3028-0-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download
memory/3028-19-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads