njrat | 4f3b59864c18a8d1a8add12e29dfd6293d67c07ecbd0bf9b4ae9e34294bc2668

General

Target

4f3b59864c18a8d1a8add12e29dfd6293d67c07ecbd0bf9b4ae9e34294bc2668.exe
Size

1.9MB
MD5

e4c2350adc7cb595f67e309d52b2778e
SHA1

08a0784691beeb777d864279612a7237075f94ee
SHA256

4f3b59864c18a8d1a8add12e29dfd6293d67c07ecbd0bf9b4ae9e34294bc2668
SHA512

8b39225020671ce408deba0b8d0e91dfba51e64552b8b18d9f241f2250ef72769fd55cf2c97047dc3921613d0762a86a93be92f64766b829090c93da795ca8ad
SSDEEP

49152:hd6e6x01stTTAkJ/4p3ZpoWJX+vS6ljM3XyF2:hg1xThKJZpoWJO6UjaCA

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan upx

Malware Config

Signatures

Njrat family
njrat
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
2300	netsh.exe

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2449540194-3226363261-2578591490-1000\Control Panel\International\Geo\Nation	4f3b59864c18a8d1a8add12e29dfd6293d67c07ecbd0bf9b4ae9e34294bc2668.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2449540194-3226363261-2578591490-1000\Control Panel\International\Geo\Nation	SpyNet.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2449540194-3226363261-2578591490-1000\Control Panel\International\Geo\Nation	Smart Binder v2.0 By Th3 Exploiter.exe

Executes dropped EXE 3 IoCs

pid	Process
2484	Smart Binder v2.0 By Th3 Exploiter.exe
2344	SpyNet.exe
6036	server.exe

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-1-5-21-2449540194-3226363261-2578591490-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\f87a088fbd7c06eef1f5a49864be5208 = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\f87a088fbd7c06eef1f5a49864be5208 = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .."	server.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0029000000046194-13.dat	upx
behavioral1/memory/2344-22-0x0000000000400000-0x0000000000957000-memory.dmp	upx
behavioral1/memory/2344-1104-0x0000000000400000-0x0000000000957000-memory.dmp	upx
behavioral1/memory/2344-1106-0x0000000000400000-0x0000000000957000-memory.dmp	upx
behavioral1/memory/2344-1108-0x0000000000400000-0x0000000000957000-memory.dmp	upx
behavioral1/memory/2344-1109-0x0000000000400000-0x0000000000957000-memory.dmp	upx
behavioral1/memory/2344-1110-0x0000000000400000-0x0000000000957000-memory.dmp	upx

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4f3b59864c18a8d1a8add12e29dfd6293d67c07ecbd0bf9b4ae9e34294bc2668.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Smart Binder v2.0 By Th3 Exploiter.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SpyNet.exe

Checks SCSI registry key(s) 3 TTPs 8 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_MSFT&PROD_VIRTUAL_DVD-ROM\2&1F4ADFFE&0&000001	SpyNet.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Phantom	SpyNet.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_MSFT&PROD_VIRTUAL_DVD-ROM\2&1F4ADFFE&0&000002	SpyNet.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Phantom	SpyNet.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000	SpyNet.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\ConfigFlags	SpyNet.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_QEMU&PROD_QEMU_DVD-ROM\4&215468A5&0&010000	SpyNet.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\ConfigFlags	SpyNet.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	SpyNet.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	SpyNet.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	6036	server.exe
Token: 33	6036	server.exe
Token: SeIncBasePriorityPrivilege	6036	server.exe
Token: 33	6036	server.exe
Token: SeIncBasePriorityPrivilege	6036	server.exe
Token: 33	6036	server.exe
Token: SeIncBasePriorityPrivilege	6036	server.exe
Token: 33	6036	server.exe
Token: SeIncBasePriorityPrivilege	6036	server.exe
Token: 33	6036	server.exe
Token: SeIncBasePriorityPrivilege	6036	server.exe
Token: 33	6036	server.exe
Token: SeIncBasePriorityPrivilege	6036	server.exe
Token: 33	6036	server.exe
Token: SeIncBasePriorityPrivilege	6036	server.exe
Token: 33	6036	server.exe
Token: SeIncBasePriorityPrivilege	6036	server.exe
Token: 33	6036	server.exe
Token: SeIncBasePriorityPrivilege	6036	server.exe
Token: 33	6036	server.exe
Token: SeIncBasePriorityPrivilege	6036	server.exe
Token: 33	6036	server.exe
Token: SeIncBasePriorityPrivilege	6036	server.exe
Token: 33	6036	server.exe
Token: SeIncBasePriorityPrivilege	6036	server.exe
Token: 33	6036	server.exe
Token: SeIncBasePriorityPrivilege	6036	server.exe
Token: 33	6036	server.exe
Token: SeIncBasePriorityPrivilege	6036	server.exe
Token: 33	6036	server.exe
Token: SeIncBasePriorityPrivilege	6036	server.exe
Token: 33	6036	server.exe
Token: SeIncBasePriorityPrivilege	6036	server.exe
Token: 33	6036	server.exe
Token: SeIncBasePriorityPrivilege	6036	server.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
2344	SpyNet.exe
2344	SpyNet.exe
2344	SpyNet.exe
2344	SpyNet.exe
2344	SpyNet.exe
2344	SpyNet.exe

Suspicious use of SendNotifyMessage 6 IoCs

pid	Process
2344	SpyNet.exe
2344	SpyNet.exe
2344	SpyNet.exe
2344	SpyNet.exe
2344	SpyNet.exe
2344	SpyNet.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3600 wrote to memory of 2484	3600	4f3b59864c18a8d1a8add12e29dfd6293d67c07ecbd0bf9b4ae9e34294bc2668.exe	81
PID 3600 wrote to memory of 2484	3600	4f3b59864c18a8d1a8add12e29dfd6293d67c07ecbd0bf9b4ae9e34294bc2668.exe	81
PID 3600 wrote to memory of 2484	3600	4f3b59864c18a8d1a8add12e29dfd6293d67c07ecbd0bf9b4ae9e34294bc2668.exe	81
PID 3600 wrote to memory of 2344	3600	4f3b59864c18a8d1a8add12e29dfd6293d67c07ecbd0bf9b4ae9e34294bc2668.exe	82
PID 3600 wrote to memory of 2344	3600	4f3b59864c18a8d1a8add12e29dfd6293d67c07ecbd0bf9b4ae9e34294bc2668.exe	82
PID 3600 wrote to memory of 2344	3600	4f3b59864c18a8d1a8add12e29dfd6293d67c07ecbd0bf9b4ae9e34294bc2668.exe	82
PID 2344 wrote to memory of 6028	2344	SpyNet.exe	84
PID 2344 wrote to memory of 6028	2344	SpyNet.exe	84
PID 2344 wrote to memory of 6028	2344	SpyNet.exe	84
PID 2484 wrote to memory of 6036	2484	Smart Binder v2.0 By Th3 Exploiter.exe	85
PID 2484 wrote to memory of 6036	2484	Smart Binder v2.0 By Th3 Exploiter.exe	85
PID 2484 wrote to memory of 6036	2484	Smart Binder v2.0 By Th3 Exploiter.exe	85
PID 6036 wrote to memory of 2300	6036	server.exe	87
PID 6036 wrote to memory of 2300	6036	server.exe	87
PID 6036 wrote to memory of 2300	6036	server.exe	87

C:\Users\Admin\AppData\Local\Temp\4f3b59864c18a8d1a8add12e29dfd6293d67c07ecbd0bf9b4ae9e34294bc2668.exe
"C:\Users\Admin\AppData\Local\Temp\4f3b59864c18a8d1a8add12e29dfd6293d67c07ecbd0bf9b4ae9e34294bc2668.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3600
- C:\Users\Admin\AppData\Local\Temp\Smart Binder v2.0 By Th3 Exploiter.exe
  "C:\Users\Admin\AppData\Local\Temp\Smart Binder v2.0 By Th3 Exploiter.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2484
- - C:\Users\Admin\AppData\Roaming\server.exe
    "C:\Users\Admin\AppData\Roaming\server.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:6036
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:2300
- C:\Users\Admin\AppData\Local\Temp\SpyNet.exe
  "C:\Users\Admin\AppData\Local\Temp\SpyNet.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Checks SCSI registry key(s)
  - Checks processor information in registry
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2344
- - C:\Windows\SysWOW64\cscript.exe
    "C:\Windows\system32\cscript.exe" "C:\Users\Admin\AppData\Local\Temp\teste.vbs"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:6028

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

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

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

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

4

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\IP.txt

Filesize
132KB

MD5
d539a65f4d32a2111f2e24e90a1d188d

SHA1
c770d803ad16a84449c6b214b84b13cbacac35bc

SHA256
36519ea423f5c52f9f77772c7bbcb7ddc979813ad77e40df08e5d0313a604d26

SHA512
854332c47655cb22f73171f11c837bcf442d4ee294f0943e09266c96f1c85c7b66af42d9a6938cca89509d26a04edc03ca17501c87af9a41aa7bc37632dac155

Download Submit
C:\Users\Admin\AppData\Local\Temp\Language\Default.ini

Filesize
14KB

MD5
ee9826fd3883b9756896baed5d076cc6

SHA1
d1c829cabcb967410e03489723d9e51b9549d6f6

SHA256
e06ff3e2b4cf78d6147d00dbfd00066751d1d6680b3dd672e861574741a894d9

SHA512
404cfe3632fc3614a0e686504a2edcdf984aab20afc8fc4c7785d76bd52bf466078e756838c2ce5350439ad128756e55e1c3b12f3badd70fba8e74d171a05538

Download Submit
C:\Users\Admin\AppData\Local\Temp\Settings\Settings.ini

Filesize
1KB

MD5
448a49c2d7253c927e820056e9e7ea8b

SHA1
c7171c7b597beea4bb584319ddac80eadee5d3be

SHA256
afcc1b53d0e2ef177754d4f6ae9ab391e7115e39fc73caaabcb3cd585c2e4c7c

SHA512
54dc9c1eba0154aa648ec317c51642fd88d7dcd50b4e5f1eea5c67e1c7db91a7e8cb97d0b538e4a280d91a65fea8baa888734960fbf636b7067ac407840a5224

Download Submit
C:\Users\Admin\AppData\Local\Temp\Smart Binder v2.0 By Th3 Exploiter.exe

Filesize
23KB

MD5
f836c26e8aae6e2ba4efb47af6cecf4f

SHA1
65d32c3ed9f9f03033efb50fe8275a3643755f79

SHA256
c244ca57170c47a61d79092c13a038477a904a416b492adeb5aabe89d1620c30

SHA512
fa8e33791059323c754589a779b167d21cf515fb786c86a84944cf7fc8784be71842db8ee12953855141d99aab9aa707fbfd972d7229156f73168284dcba8f47

Download Submit
C:\Users\Admin\AppData\Local\Temp\SpyNet.exe

Filesize
2.0MB

MD5
98de7bcad1ba2caf74007bd97bc2b505

SHA1
8a79d06159a339313b810f23835b8417429dd356

SHA256
e4b3b3e72bd3bf4052a3136cb811ea54923bc2d7807709992e0345743d49ced8

SHA512
ef57cc4f0ad4bf1f54baaf7213bf868c418eebfb0eee3c32ff376b67d5d5337c35a94a1418951d82aae371820ce37eade7cf0a74ce54a4198e18327bd232a35d

Download Submit
C:\Users\Admin\AppData\Local\Temp\teste.txt

Filesize
2B

MD5
81051bcc2cf1bedf378224b0a93e2877

SHA1
ba8ab5a0280b953aa97435ff8946cbcbb2755a27

SHA256
7eb70257593da06f682a3ddda54a9d260d4fc514f645237f5ca74b08f8da61a6

SHA512
1b302a2f1e624a5fb5ad94ddc4e5f8bfd74d26fa37512d0e5face303d8c40eee0d0ffa3649f5da43f439914d128166cb6c4774a7caa3b174d7535451eb697b5d

Download Submit
C:\Users\Admin\AppData\Local\Temp\teste.vbs

Filesize
841B

MD5
615964e5ab63a70f0e205a476c48e356

SHA1
292620321db69d57ba23fa98d2a89484ddcf83d0

SHA256
38a2c0e90a7c86eb5355710dd205f22f84dbba59e688cd3da6394af8c924a102

SHA512
69886825baf2075f8e6cdc50b0b34f92d5d06d42db4586396fb3db806fef79986ba5754c7b1251b007cde4f943efe9e3d27800dd7e15f8084fd7e7e6046c3ccc

Download Submit
memory/2344-1106-0x0000000000400000-0x0000000000957000-memory.dmp

Filesize
5.3MB

Download
memory/2344-28-0x00000000029A0000-0x00000000029A1000-memory.dmp

Filesize
4KB

Download
memory/2344-25-0x0000000000B60000-0x0000000000B61000-memory.dmp

Filesize
4KB

Download
memory/2344-1104-0x0000000000400000-0x0000000000957000-memory.dmp

Filesize
5.3MB

Download
memory/2344-1105-0x0000000000B60000-0x0000000000B61000-memory.dmp

Filesize
4KB

Download
memory/2344-22-0x0000000000400000-0x0000000000957000-memory.dmp

Filesize
5.3MB

Download
memory/2344-1107-0x00000000029A0000-0x00000000029A1000-memory.dmp

Filesize
4KB

Download
memory/2344-1108-0x0000000000400000-0x0000000000957000-memory.dmp

Filesize
5.3MB

Download
memory/2344-1109-0x0000000000400000-0x0000000000957000-memory.dmp

Filesize
5.3MB

Download
memory/2344-1110-0x0000000000400000-0x0000000000957000-memory.dmp

Filesize
5.3MB

Download
memory/2484-23-0x0000000001060000-0x0000000001070000-memory.dmp

Filesize
64KB

Download
memory/2484-24-0x00000000739E2000-0x00000000739E4000-memory.dmp

Filesize
8KB

Download
memory/2484-26-0x00000000739E2000-0x00000000739E3000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads