njrat | b0b7e0547949400674954396d6dd3f9ce820f608eb8063b1c9d86f3e3d16f2df

General

Target

b0b7e0547949400674954396d6dd3f9ce820f608eb8063b1c9d86f3e3d16f2df.exe
Size

232KB
MD5

048af131c128c4f3d61e2f8311a0d789
SHA1

6499aaffdef17532166f4e6b023b5b5e9c2a3a74
SHA256

b0b7e0547949400674954396d6dd3f9ce820f608eb8063b1c9d86f3e3d16f2df
SHA512

8ecf9f80ed6651dda257215f80a9fdaca1f19a1833a0968e67d943bea6a654ff59e828085d69f7a10e05e32290d3b2a28355179f3b367b86abb3781f69451c32
SSDEEP

6144:sGzuTmcrilEBufkto5AoYfqyoVxxGMOr6ulkLAl9sUgvoplt:sGuTKlEBu8t6zYyyowWulA6sU1r

Score

10^/10

njrat adam evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Adam

C2

127.0.0.1:5552

Mutex

0fdeb309c302794f1f098abd7425174f

Attributes

reg_key
0fdeb309c302794f1f098abd7425174f
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
3248	netsh.exe

.NET Reactor proctector 1 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral2/files/0x0007000000023412-11.dat	net_reactor

Checks computer location settings 2 TTPs 1 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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	b0b7e0547949400674954396d6dd3f9ce820f608eb8063b1c9d86f3e3d16f2df.exe

Executes dropped EXE 1 IoCs

pid	Process
900	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-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0fdeb309c302794f1f098abd7425174f = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0fdeb309c302794f1f098abd7425174f = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .."	server.exe

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\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	900	server.exe
Token: 33	900	server.exe
Token: SeIncBasePriorityPrivilege	900	server.exe
Token: 33	900	server.exe
Token: SeIncBasePriorityPrivilege	900	server.exe
Token: 33	900	server.exe
Token: SeIncBasePriorityPrivilege	900	server.exe
Token: 33	900	server.exe
Token: SeIncBasePriorityPrivilege	900	server.exe
Token: 33	900	server.exe
Token: SeIncBasePriorityPrivilege	900	server.exe
Token: 33	900	server.exe
Token: SeIncBasePriorityPrivilege	900	server.exe
Token: 33	900	server.exe
Token: SeIncBasePriorityPrivilege	900	server.exe
Token: 33	900	server.exe
Token: SeIncBasePriorityPrivilege	900	server.exe
Token: 33	900	server.exe
Token: SeIncBasePriorityPrivilege	900	server.exe
Token: 33	900	server.exe
Token: SeIncBasePriorityPrivilege	900	server.exe
Token: 33	900	server.exe
Token: SeIncBasePriorityPrivilege	900	server.exe
Token: 33	900	server.exe
Token: SeIncBasePriorityPrivilege	900	server.exe
Token: 33	900	server.exe
Token: SeIncBasePriorityPrivilege	900	server.exe
Token: 33	900	server.exe
Token: SeIncBasePriorityPrivilege	900	server.exe
Token: 33	900	server.exe
Token: SeIncBasePriorityPrivilege	900	server.exe
Token: 33	900	server.exe
Token: SeIncBasePriorityPrivilege	900	server.exe
Token: 33	900	server.exe
Token: SeIncBasePriorityPrivilege	900	server.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4092 wrote to memory of 900	4092	b0b7e0547949400674954396d6dd3f9ce820f608eb8063b1c9d86f3e3d16f2df.exe	87
PID 4092 wrote to memory of 900	4092	b0b7e0547949400674954396d6dd3f9ce820f608eb8063b1c9d86f3e3d16f2df.exe	87
PID 900 wrote to memory of 3248	900	server.exe	90
PID 900 wrote to memory of 3248	900	server.exe	90

C:\Users\Admin\AppData\Local\Temp\b0b7e0547949400674954396d6dd3f9ce820f608eb8063b1c9d86f3e3d16f2df.exe
"C:\Users\Admin\AppData\Local\Temp\b0b7e0547949400674954396d6dd3f9ce820f608eb8063b1c9d86f3e3d16f2df.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4092
- C:\Users\Admin\AppData\Roaming\server.exe
  "C:\Users\Admin\AppData\Roaming\server.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:900
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:3248

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\server.exe

Filesize
232KB

MD5
048af131c128c4f3d61e2f8311a0d789

SHA1
6499aaffdef17532166f4e6b023b5b5e9c2a3a74

SHA256
b0b7e0547949400674954396d6dd3f9ce820f608eb8063b1c9d86f3e3d16f2df

SHA512
8ecf9f80ed6651dda257215f80a9fdaca1f19a1833a0968e67d943bea6a654ff59e828085d69f7a10e05e32290d3b2a28355179f3b367b86abb3781f69451c32

Download Submit
memory/900-24-0x00007FFBEDB10000-0x00007FFBEE4B1000-memory.dmp

Filesize
9.6MB

Download
memory/900-23-0x0000000000E10000-0x0000000000E18000-memory.dmp

Filesize
32KB

Download
memory/900-22-0x00007FFBEDB10000-0x00007FFBEE4B1000-memory.dmp

Filesize
9.6MB

Download
memory/900-21-0x00007FFBEDB10000-0x00007FFBEE4B1000-memory.dmp

Filesize
9.6MB

Download
memory/900-20-0x00007FFBEDB10000-0x00007FFBEE4B1000-memory.dmp

Filesize
9.6MB

Download
memory/4092-6-0x0000000001130000-0x000000000113C000-memory.dmp

Filesize
48KB

Download
memory/4092-0-0x00007FFBEDDC5000-0x00007FFBEDDC6000-memory.dmp

Filesize
4KB

Download
memory/4092-5-0x000000001C4A0000-0x000000001C53C000-memory.dmp

Filesize
624KB

Download
memory/4092-19-0x00007FFBEDB10000-0x00007FFBEE4B1000-memory.dmp

Filesize
9.6MB

Download
memory/4092-4-0x00007FFBEDB10000-0x00007FFBEE4B1000-memory.dmp

Filesize
9.6MB

Download
memory/4092-3-0x000000001BD90000-0x000000001C25E000-memory.dmp

Filesize
4.8MB

Download
memory/4092-2-0x000000001B810000-0x000000001B8B6000-memory.dmp

Filesize
664KB

Download
memory/4092-1-0x00007FFBEDB10000-0x00007FFBEE4B1000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads