njrat | aaaebe4723df9ffde21f0e0066105a74377f0612282d508f3ae0e49b280d68fe

General

Target

JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe
Size

117KB
MD5

7e5a8ff9a87eab057b76582b49018df9
SHA1

06ca8560eb9c700bb420abaa33f076c808155822
SHA256

aaaebe4723df9ffde21f0e0066105a74377f0612282d508f3ae0e49b280d68fe
SHA512

98e6e2e41e2c92beb6aa406bd348267209caed88b4683c3ae25d48c2ad104a68fb3ec955eb03554a6f7641da447a0e524a37ca74a3ae852047f8569ff07e80d3
SSDEEP

3072:7E8AHzBgZC5gRFYU2zmMcVinx7754KmUa6Q:uyggR+U2HoiV14KmU

Score

10^/10

njrat mx discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

mx

C2

209.200.39.186:1172

Mutex

7c5ab2d4b3ee0e1b3e9cf876e75dff1f

Attributes

reg_key
7c5ab2d4b3ee0e1b3e9cf876e75dff1f
splitter
|'|'|

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
3748	netsh.exe

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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7c5ab2d4b3ee0e1b3e9cf876e75dff1f.exe	memo.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7c5ab2d4b3ee0e1b3e9cf876e75dff1f.exe	memo.exe

Executes dropped EXE 2 IoCs

pid	Process
3832	memo.exe
4940	memo.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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7c5ab2d4b3ee0e1b3e9cf876e75dff1f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\memo.exe\" .."	memo.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\7c5ab2d4b3ee0e1b3e9cf876e75dff1f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\memo.exe\" .."	memo.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3288 set thread context of 2720	3288	JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe	83
PID 3832 set thread context of 4940	3832	memo.exe	85

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

System Location Discovery: System Language Discovery 1 TTPs 5 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	JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	memo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	memo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 45 IoCs

pid	Process
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe
4940	memo.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4940	memo.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 3288 wrote to memory of 2720	3288	JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe	83
PID 3288 wrote to memory of 2720	3288	JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe	83
PID 3288 wrote to memory of 2720	3288	JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe	83
PID 3288 wrote to memory of 2720	3288	JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe	83
PID 3288 wrote to memory of 2720	3288	JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe	83
PID 3288 wrote to memory of 2720	3288	JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe	83
PID 3288 wrote to memory of 2720	3288	JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe	83
PID 3288 wrote to memory of 2720	3288	JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe	83
PID 2720 wrote to memory of 3832	2720	JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe	84
PID 2720 wrote to memory of 3832	2720	JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe	84
PID 2720 wrote to memory of 3832	2720	JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe	84
PID 3832 wrote to memory of 4940	3832	memo.exe	85
PID 3832 wrote to memory of 4940	3832	memo.exe	85
PID 3832 wrote to memory of 4940	3832	memo.exe	85
PID 3832 wrote to memory of 4940	3832	memo.exe	85
PID 3832 wrote to memory of 4940	3832	memo.exe	85
PID 3832 wrote to memory of 4940	3832	memo.exe	85
PID 3832 wrote to memory of 4940	3832	memo.exe	85
PID 3832 wrote to memory of 4940	3832	memo.exe	85
PID 4940 wrote to memory of 3748	4940	memo.exe	86
PID 4940 wrote to memory of 3748	4940	memo.exe	86
PID 4940 wrote to memory of 3748	4940	memo.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3288
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2720
- - C:\Users\Admin\AppData\Local\Temp\memo.exe
    "C:\Users\Admin\AppData\Local\Temp\memo.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3832
  - - C:\Users\Admin\AppData\Local\Temp\memo.exe
      "C:\Users\Admin\AppData\Local\Temp\memo.exe"
      4⤵
      Drops startup file
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:4940
    - - C:\Windows\SysWOW64\netsh.exe
        
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\memo.exe" "memo.exe" ENABLE
        5⤵
        Modifies Windows Firewall
        Event Triggered Execution: Netsh Helper DLL
        System Location Discovery: System Language Discovery
        
        PID:3748

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

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\Microsoft\CLR_v2.0_32\UsageLogs\JaffaCakes118_7e5a8ff9a87eab057b76582b49018df9.exe.log

Filesize
312B

MD5
6dba4702b346903da02f7dd9e839a128

SHA1
d69f255866f30a87c9eca8312d425c47059bf15e

SHA256
29d145faac0201870c39b9119894f78694a776e03fc8f79349bdf92e56a65bcd

SHA512
33afef187e806838717238881aaaf41272f8b484fcfe97a85057fd43a7eeb119df813d6023d2ee770aa22a067f7e9d532dd1c30b512f9c48b76f838615863e1d

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

Filesize
117KB

MD5
7e5a8ff9a87eab057b76582b49018df9

SHA1
06ca8560eb9c700bb420abaa33f076c808155822

SHA256
aaaebe4723df9ffde21f0e0066105a74377f0612282d508f3ae0e49b280d68fe

SHA512
98e6e2e41e2c92beb6aa406bd348267209caed88b4683c3ae25d48c2ad104a68fb3ec955eb03554a6f7641da447a0e524a37ca74a3ae852047f8569ff07e80d3

Download Submit
memory/2720-10-0x0000000074690000-0x0000000074C41000-memory.dmp

Filesize
5.7MB

Download
memory/2720-9-0x0000000074690000-0x0000000074C41000-memory.dmp

Filesize
5.7MB

Download
memory/2720-18-0x0000000074690000-0x0000000074C41000-memory.dmp

Filesize
5.7MB

Download
memory/2720-6-0x0000000074690000-0x0000000074C41000-memory.dmp

Filesize
5.7MB

Download
memory/2720-3-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3288-7-0x0000000074690000-0x0000000074C41000-memory.dmp

Filesize
5.7MB

Download
memory/3288-0-0x0000000074692000-0x0000000074693000-memory.dmp

Filesize
4KB

Download
memory/3288-1-0x0000000074690000-0x0000000074C41000-memory.dmp

Filesize
5.7MB

Download
memory/3288-2-0x0000000074690000-0x0000000074C41000-memory.dmp

Filesize
5.7MB

Download
memory/3832-19-0x0000000074690000-0x0000000074C41000-memory.dmp

Filesize
5.7MB

Download
memory/3832-20-0x0000000074690000-0x0000000074C41000-memory.dmp

Filesize
5.7MB

Download
memory/3832-25-0x0000000074690000-0x0000000074C41000-memory.dmp

Filesize
5.7MB

Download
memory/4940-26-0x0000000074690000-0x0000000074C41000-memory.dmp

Filesize
5.7MB

Download
memory/4940-27-0x0000000074690000-0x0000000074C41000-memory.dmp

Filesize
5.7MB

Download
memory/4940-28-0x0000000074690000-0x0000000074C41000-memory.dmp

Filesize
5.7MB

Download
memory/4940-30-0x0000000074690000-0x0000000074C41000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads