njrat | 329436a3e7cb66f771c413aa20a0c3436136d2df8903d6569c58ba8b8772b196

General

Target

5dda1441ba55de94432b9cbfca1ab8db_JaffaCakes118.exe
Size

23KB
MD5

5dda1441ba55de94432b9cbfca1ab8db
SHA1

d5f9eb1c5ab1ad9ef61dc287ed27496c8059617d
SHA256

329436a3e7cb66f771c413aa20a0c3436136d2df8903d6569c58ba8b8772b196
SHA512

eeb109e8112f2bdbd49d6cd1a8a1bb4bf5a3bbc376101204b0929f11c349b010ae97b5adf270261466387cc97eddb6eebca2c04574e014a8dfa0cb33e91cd2bb
SSDEEP

384:MslUlEvOEJ8xWwYJOMiOBZEdj1567gtwi5HhbQmRvR6JZlbw8hqIusZzZAmF:FeEvwIlLMRpcnuO

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

pid	Process
1268	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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	5dda1441ba55de94432b9cbfca1ab8db_JaffaCakes118.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3889809c24531e8175c2c6bd19e20ab7.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3889809c24531e8175c2c6bd19e20ab7.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
1444	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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3889809c24531e8175c2c6bd19e20ab7 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\3889809c24531e8175c2c6bd19e20ab7 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.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

description	pid	Process
Token: SeDebugPrivilege	1444	server.exe
Token: 33	1444	server.exe
Token: SeIncBasePriorityPrivilege	1444	server.exe
Token: 33	1444	server.exe
Token: SeIncBasePriorityPrivilege	1444	server.exe
Token: 33	1444	server.exe
Token: SeIncBasePriorityPrivilege	1444	server.exe
Token: 33	1444	server.exe
Token: SeIncBasePriorityPrivilege	1444	server.exe
Token: 33	1444	server.exe
Token: SeIncBasePriorityPrivilege	1444	server.exe
Token: 33	1444	server.exe
Token: SeIncBasePriorityPrivilege	1444	server.exe
Token: 33	1444	server.exe
Token: SeIncBasePriorityPrivilege	1444	server.exe
Token: 33	1444	server.exe
Token: SeIncBasePriorityPrivilege	1444	server.exe
Token: 33	1444	server.exe
Token: SeIncBasePriorityPrivilege	1444	server.exe
Token: 33	1444	server.exe
Token: SeIncBasePriorityPrivilege	1444	server.exe
Token: 33	1444	server.exe
Token: SeIncBasePriorityPrivilege	1444	server.exe
Token: 33	1444	server.exe
Token: SeIncBasePriorityPrivilege	1444	server.exe
Token: 33	1444	server.exe
Token: SeIncBasePriorityPrivilege	1444	server.exe
Token: 33	1444	server.exe
Token: SeIncBasePriorityPrivilege	1444	server.exe
Token: 33	1444	server.exe
Token: SeIncBasePriorityPrivilege	1444	server.exe
Token: 33	1444	server.exe
Token: SeIncBasePriorityPrivilege	1444	server.exe
Token: 33	1444	server.exe
Token: SeIncBasePriorityPrivilege	1444	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 1444	1688	5dda1441ba55de94432b9cbfca1ab8db_JaffaCakes118.exe	93
PID 1688 wrote to memory of 1444	1688	5dda1441ba55de94432b9cbfca1ab8db_JaffaCakes118.exe	93
PID 1688 wrote to memory of 1444	1688	5dda1441ba55de94432b9cbfca1ab8db_JaffaCakes118.exe	93
PID 1444 wrote to memory of 1268	1444	server.exe	96
PID 1444 wrote to memory of 1268	1444	server.exe	96
PID 1444 wrote to memory of 1268	1444	server.exe	96

C:\Users\Admin\AppData\Local\Temp\5dda1441ba55de94432b9cbfca1ab8db_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5dda1441ba55de94432b9cbfca1ab8db_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1444
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:1268

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

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Downloads

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

Filesize
23KB

MD5
5dda1441ba55de94432b9cbfca1ab8db

SHA1
d5f9eb1c5ab1ad9ef61dc287ed27496c8059617d

SHA256
329436a3e7cb66f771c413aa20a0c3436136d2df8903d6569c58ba8b8772b196

SHA512
eeb109e8112f2bdbd49d6cd1a8a1bb4bf5a3bbc376101204b0929f11c349b010ae97b5adf270261466387cc97eddb6eebca2c04574e014a8dfa0cb33e91cd2bb

Download Submit
memory/1444-13-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/1444-14-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/1444-16-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/1688-0-0x0000000074682000-0x0000000074683000-memory.dmp

Filesize
4KB

Download
memory/1688-1-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/1688-2-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download
memory/1688-12-0x0000000074680000-0x0000000074C31000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads