njrat | f3708be0f01799bf40ab729a335e3b689049b6017f2671fbf92bf2579de24595

General

Target

JaffaCakes118_000f45f0e74708e3b79e7dd0598c5d9b.exe
Size

121KB
MD5

000f45f0e74708e3b79e7dd0598c5d9b
SHA1

23a1d58a40d4d2e90b47e5303eead4a9c65a79e8
SHA256

f3708be0f01799bf40ab729a335e3b689049b6017f2671fbf92bf2579de24595
SHA512

aade94af175ee2500134584f22cf1dd87d73b9fabeec2dbce9f44d72d587bdd0a66f56a5d3edd889e70d3dd4d5d6597847ad9fbd1a4a67d8b5c2fd703bc6178b
SSDEEP

3072:NPJQ1c9AXY7IQZyPPLs+dkPwDEJv1pp8hj:NGXYEXL1dkPWqppU

Score

10^/10

njrat neymar.jr evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

Neymar.Jr

C2

Zapa.duckdns.org:7575

Mutex

08e864d6f4c1fdf78ee0e9f6bdeb0bc1

Attributes

reg_key
08e864d6f4c1fdf78ee0e9f6bdeb0bc1
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
4012	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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_000f45f0e74708e3b79e7dd0598c5d9b.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\08e864d6f4c1fdf78ee0e9f6bdeb0bc1.exe	dwn.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\08e864d6f4c1fdf78ee0e9f6bdeb0bc1.exe	dwn.exe

Executes dropped EXE 1 IoCs

pid	Process
1660	dwn.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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\08e864d6f4c1fdf78ee0e9f6bdeb0bc1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\dwn.exe\" .."	dwn.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\08e864d6f4c1fdf78ee0e9f6bdeb0bc1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\dwn.exe\" .."	dwn.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 opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious behavior: EnumeratesProcesses 45 IoCs

pid	Process
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe
1660	dwn.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1660	dwn.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4476 wrote to memory of 1660	4476	JaffaCakes118_000f45f0e74708e3b79e7dd0598c5d9b.exe	83
PID 4476 wrote to memory of 1660	4476	JaffaCakes118_000f45f0e74708e3b79e7dd0598c5d9b.exe	83
PID 1660 wrote to memory of 4012	1660	dwn.exe	84
PID 1660 wrote to memory of 4012	1660	dwn.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_000f45f0e74708e3b79e7dd0598c5d9b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_000f45f0e74708e3b79e7dd0598c5d9b.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4476
- C:\Users\Admin\AppData\Local\Temp\dwn.exe
  "C:\Users\Admin\AppData\Local\Temp\dwn.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1660
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\dwn.exe" "dwn.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:4012

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\dwn.exe

Filesize
121KB

MD5
000f45f0e74708e3b79e7dd0598c5d9b

SHA1
23a1d58a40d4d2e90b47e5303eead4a9c65a79e8

SHA256
f3708be0f01799bf40ab729a335e3b689049b6017f2671fbf92bf2579de24595

SHA512
aade94af175ee2500134584f22cf1dd87d73b9fabeec2dbce9f44d72d587bdd0a66f56a5d3edd889e70d3dd4d5d6597847ad9fbd1a4a67d8b5c2fd703bc6178b

Download Submit
memory/1660-30-0x00007FF8D0620000-0x00007FF8D0FC1000-memory.dmp

Filesize
9.6MB

Download
memory/1660-29-0x00007FF8D0620000-0x00007FF8D0FC1000-memory.dmp

Filesize
9.6MB

Download
memory/1660-28-0x00007FF8D0620000-0x00007FF8D0FC1000-memory.dmp

Filesize
9.6MB

Download
memory/1660-27-0x00007FF8D0620000-0x00007FF8D0FC1000-memory.dmp

Filesize
9.6MB

Download
memory/1660-25-0x00007FF8D0620000-0x00007FF8D0FC1000-memory.dmp

Filesize
9.6MB

Download
memory/1660-23-0x00007FF8D0620000-0x00007FF8D0FC1000-memory.dmp

Filesize
9.6MB

Download
memory/1660-22-0x00007FF8D0620000-0x00007FF8D0FC1000-memory.dmp

Filesize
9.6MB

Download
memory/1660-21-0x00007FF8D0620000-0x00007FF8D0FC1000-memory.dmp

Filesize
9.6MB

Download
memory/4476-4-0x000000001BFA0000-0x000000001C046000-memory.dmp

Filesize
664KB

Download
memory/4476-8-0x0000000000E20000-0x0000000000E2E000-memory.dmp

Filesize
56KB

Download
memory/4476-7-0x00007FF8D0620000-0x00007FF8D0FC1000-memory.dmp

Filesize
9.6MB

Download
memory/4476-6-0x0000000000E40000-0x0000000000E48000-memory.dmp

Filesize
32KB

Download
memory/4476-24-0x00007FF8D0620000-0x00007FF8D0FC1000-memory.dmp

Filesize
9.6MB

Download
memory/4476-5-0x00007FF8D0620000-0x00007FF8D0FC1000-memory.dmp

Filesize
9.6MB

Download
memory/4476-0-0x00007FF8D08D5000-0x00007FF8D08D6000-memory.dmp

Filesize
4KB

Download
memory/4476-3-0x000000001B410000-0x000000001B4AC000-memory.dmp

Filesize
624KB

Download
memory/4476-2-0x000000001BA20000-0x000000001BEEE000-memory.dmp

Filesize
4.8MB

Download
memory/4476-1-0x00007FF8D0620000-0x00007FF8D0FC1000-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