njrat | cddc1b5e5c262cecf98af120d594087c32684b78feff03d92e0f1d04a19ed8d9

General

Target

6f9e818fc25378b7c29da0172e2914e3_JaffaCakes118.exe
Size

284KB
MD5

6f9e818fc25378b7c29da0172e2914e3
SHA1

4834094b83c26f2cfa5c105cf636036cfcb95166
SHA256

cddc1b5e5c262cecf98af120d594087c32684b78feff03d92e0f1d04a19ed8d9
SHA512

77f2cc5c6b1e96266d0732ce02a40bda4f865d751e833f6d1bb934de060eb5c3653e2ba8bad4405be20c3758289c6d4e87371da5ef29cdc065273e9f82f54d8b
SSDEEP

6144:Z4+kQ4flIVlcU2dNXdpc2UseFxX40KTb0TXxB2GEgzuyT:K+qfD3d+vsmFTXj2GE

Score

10^/10

njrat evasion persistence trojan

Malware Config

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

Processes:

netsh.exe

pid process

4972 netsh.exe

pid	process
4972	netsh.exe

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

6f9e818fc25378b7c29da0172e2914e3_JaffaCakes118.exeLocalyenbOoiyui.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	6f9e818fc25378b7c29da0172e2914e3_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	LocalyenbOoiyui.exe

Drops startup file 2 IoCs

Processes:

GoogleCrashHandler.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fe4be70430c2b3ca3e9969ad7c1c2a31.exe	GoogleCrashHandler.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fe4be70430c2b3ca3e9969ad7c1c2a31.exe	GoogleCrashHandler.exe

Executes dropped EXE 2 IoCs

Processes:

LocalyenbOoiyui.exeGoogleCrashHandler.exe

pid process

976 LocalyenbOoiyui.exe
2160 GoogleCrashHandler.exe

pid	process
976	LocalyenbOoiyui.exe
2160	GoogleCrashHandler.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

GoogleCrashHandler.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fe4be70430c2b3ca3e9969ad7c1c2a31 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\GoogleCrashHandler.exe\" .."	GoogleCrashHandler.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\fe4be70430c2b3ca3e9969ad7c1c2a31 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\GoogleCrashHandler.exe\" .."	GoogleCrashHandler.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 35 IoCs

Processes:

GoogleCrashHandler.exe

description	pid	process
Token: SeDebugPrivilege	2160	GoogleCrashHandler.exe
Token: 33	2160	GoogleCrashHandler.exe
Token: SeIncBasePriorityPrivilege	2160	GoogleCrashHandler.exe
Token: 33	2160	GoogleCrashHandler.exe
Token: SeIncBasePriorityPrivilege	2160	GoogleCrashHandler.exe
Token: 33	2160	GoogleCrashHandler.exe
Token: SeIncBasePriorityPrivilege	2160	GoogleCrashHandler.exe
Token: 33	2160	GoogleCrashHandler.exe
Token: SeIncBasePriorityPrivilege	2160	GoogleCrashHandler.exe
Token: 33	2160	GoogleCrashHandler.exe
Token: SeIncBasePriorityPrivilege	2160	GoogleCrashHandler.exe
Token: 33	2160	GoogleCrashHandler.exe
Token: SeIncBasePriorityPrivilege	2160	GoogleCrashHandler.exe
Token: 33	2160	GoogleCrashHandler.exe
Token: SeIncBasePriorityPrivilege	2160	GoogleCrashHandler.exe
Token: 33	2160	GoogleCrashHandler.exe
Token: SeIncBasePriorityPrivilege	2160	GoogleCrashHandler.exe
Token: 33	2160	GoogleCrashHandler.exe
Token: SeIncBasePriorityPrivilege	2160	GoogleCrashHandler.exe
Token: 33	2160	GoogleCrashHandler.exe
Token: SeIncBasePriorityPrivilege	2160	GoogleCrashHandler.exe
Token: 33	2160	GoogleCrashHandler.exe
Token: SeIncBasePriorityPrivilege	2160	GoogleCrashHandler.exe
Token: 33	2160	GoogleCrashHandler.exe
Token: SeIncBasePriorityPrivilege	2160	GoogleCrashHandler.exe
Token: 33	2160	GoogleCrashHandler.exe
Token: SeIncBasePriorityPrivilege	2160	GoogleCrashHandler.exe
Token: 33	2160	GoogleCrashHandler.exe
Token: SeIncBasePriorityPrivilege	2160	GoogleCrashHandler.exe
Token: 33	2160	GoogleCrashHandler.exe
Token: SeIncBasePriorityPrivilege	2160	GoogleCrashHandler.exe
Token: 33	2160	GoogleCrashHandler.exe
Token: SeIncBasePriorityPrivilege	2160	GoogleCrashHandler.exe
Token: 33	2160	GoogleCrashHandler.exe
Token: SeIncBasePriorityPrivilege	2160	GoogleCrashHandler.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

6f9e818fc25378b7c29da0172e2914e3_JaffaCakes118.exeLocalyenbOoiyui.exeGoogleCrashHandler.exe

description	pid	process	target process
PID 1940 wrote to memory of 976	1940	6f9e818fc25378b7c29da0172e2914e3_JaffaCakes118.exe	LocalyenbOoiyui.exe
PID 1940 wrote to memory of 976	1940	6f9e818fc25378b7c29da0172e2914e3_JaffaCakes118.exe	LocalyenbOoiyui.exe
PID 1940 wrote to memory of 976	1940	6f9e818fc25378b7c29da0172e2914e3_JaffaCakes118.exe	LocalyenbOoiyui.exe
PID 976 wrote to memory of 2160	976	LocalyenbOoiyui.exe	GoogleCrashHandler.exe
PID 976 wrote to memory of 2160	976	LocalyenbOoiyui.exe	GoogleCrashHandler.exe
PID 976 wrote to memory of 2160	976	LocalyenbOoiyui.exe	GoogleCrashHandler.exe
PID 2160 wrote to memory of 4972	2160	GoogleCrashHandler.exe	netsh.exe
PID 2160 wrote to memory of 4972	2160	GoogleCrashHandler.exe	netsh.exe
PID 2160 wrote to memory of 4972	2160	GoogleCrashHandler.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\6f9e818fc25378b7c29da0172e2914e3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6f9e818fc25378b7c29da0172e2914e3_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Users\Admin\AppData\LocalyenbOoiyui.exe
  "C:\Users\Admin\AppData\LocalyenbOoiyui.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:976
- - C:\Users\Admin\AppData\Local\Temp\GoogleCrashHandler.exe
    "C:\Users\Admin\AppData\Local\Temp\GoogleCrashHandler.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2160
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\GoogleCrashHandler.exe" "GoogleCrashHandler.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      PID:4972

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

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\LocalyenbOoiyui.exe

Filesize
33KB

MD5
7958d6818ba7c9a69a56646d649a7c2d

SHA1
27604fca583580df8670586f62baf3329bd3d794

SHA256
cbb7c8e993b64644c6b8794483d131e299c8b47f02904d6d51ba20d425eeb5e6

SHA512
fd977f661b7b56718053e0deb770fe8858b6e2a6eef380720af1dfc5c503043ac3b1d0853307c1b8dfbda483ab31ffdc8b677fca39ccf259b3cffe378485c803

Download Submit
memory/976-12-0x0000000074852000-0x0000000074853000-memory.dmp

Filesize
4KB

Download
memory/976-15-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/976-16-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/976-26-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/1940-0-0x00007FFBC3495000-0x00007FFBC3496000-memory.dmp

Filesize
4KB

Download
memory/1940-2-0x00007FFBC31E0000-0x00007FFBC3B81000-memory.dmp

Filesize
9.6MB

Download
memory/1940-3-0x00007FFBC31E0000-0x00007FFBC3B81000-memory.dmp

Filesize
9.6MB

Download
memory/1940-14-0x00007FFBC31E0000-0x00007FFBC3B81000-memory.dmp

Filesize
9.6MB

Download
memory/2160-27-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/2160-28-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/2160-30-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads