njrat | c60472bb288cdc3a6f6e3a1b8259cb456946c52ec6c384235aa6f497d3f12e55

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
31/05/2024, 02:49

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General

Target
85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe
Size 232KB
Sample240531-dbhjtsdf94
SHA256 c60472bb288cdc3a6f6e3a1b8259cb456946c52ec6c384235aa6f497d3f12e55
MD5 85c70c3437ebe4b0b630a653b7a480ab
SHA1 d9466c679bfbfde3a5437d8705cc3bf084a32795
SHA512 17a0a917552b45294d50e4f1d0c19515f242f3318da1bb06c74f5201c076b3a7e9df88439ea9ed3081934cbd0e25afeeb45be7dfb251d19487ca388714127a8b
SSDEEP 1536:TXgU1uGxpvZQ7FO6J1xdLr2JTqzUnQJJEXvQduxMM:TXgU1pRQE6J1xmuUnQJuXIdux
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat good evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

GOOD

goodattack.ddns.net:7777

Mutex

37c62a0da2f3441cbf32911711ed45e8

Attributes

reg_key
37c62a0da2f3441cbf32911711ed45e8
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
4384	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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\37c62a0da2f3441cbf32911711ed45e8.exe	Java.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\37c62a0da2f3441cbf32911711ed45e8.exe	Java.exe

Executes dropped EXE 2 IoCs

pid	Process
1664	Java.exe
2056	Java.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-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\37c62a0da2f3441cbf32911711ed45e8 = "\"C:\\Users\\Admin\\AppData\\Roaming\\Java.exe\" .."	Java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\37c62a0da2f3441cbf32911711ed45e8 = "\"C:\\Users\\Admin\\AppData\\Roaming\\Java.exe\" .."	Java.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Java.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1296 set thread context of 1396	1296	85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe	92
PID 1664 set thread context of 2056	1664	Java.exe	94

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	2056	Java.exe
Token: 33	2056	Java.exe
Token: SeIncBasePriorityPrivilege	2056	Java.exe
Token: 33	2056	Java.exe
Token: SeIncBasePriorityPrivilege	2056	Java.exe
Token: 33	2056	Java.exe
Token: SeIncBasePriorityPrivilege	2056	Java.exe
Token: 33	2056	Java.exe
Token: SeIncBasePriorityPrivilege	2056	Java.exe
Token: 33	2056	Java.exe
Token: SeIncBasePriorityPrivilege	2056	Java.exe
Token: 33	2056	Java.exe
Token: SeIncBasePriorityPrivilege	2056	Java.exe
Token: 33	2056	Java.exe
Token: SeIncBasePriorityPrivilege	2056	Java.exe
Token: 33	2056	Java.exe
Token: SeIncBasePriorityPrivilege	2056	Java.exe
Token: 33	2056	Java.exe
Token: SeIncBasePriorityPrivilege	2056	Java.exe
Token: 33	2056	Java.exe
Token: SeIncBasePriorityPrivilege	2056	Java.exe
Token: 33	2056	Java.exe
Token: SeIncBasePriorityPrivilege	2056	Java.exe
Token: 33	2056	Java.exe
Token: SeIncBasePriorityPrivilege	2056	Java.exe
Token: 33	2056	Java.exe
Token: SeIncBasePriorityPrivilege	2056	Java.exe
Token: 33	2056	Java.exe
Token: SeIncBasePriorityPrivilege	2056	Java.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1296 wrote to memory of 1396	1296	85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe	92
PID 1296 wrote to memory of 1396	1296	85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe	92
PID 1296 wrote to memory of 1396	1296	85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe	92
PID 1296 wrote to memory of 1396	1296	85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe	92
PID 1296 wrote to memory of 1396	1296	85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe	92
PID 1296 wrote to memory of 1396	1296	85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe	92
PID 1296 wrote to memory of 1396	1296	85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe	92
PID 1396 wrote to memory of 1664	1396	85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe	93
PID 1396 wrote to memory of 1664	1396	85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe	93
PID 1396 wrote to memory of 1664	1396	85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe	93
PID 1664 wrote to memory of 2056	1664	Java.exe	94
PID 1664 wrote to memory of 2056	1664	Java.exe	94
PID 1664 wrote to memory of 2056	1664	Java.exe	94
PID 1664 wrote to memory of 2056	1664	Java.exe	94
PID 1664 wrote to memory of 2056	1664	Java.exe	94
PID 1664 wrote to memory of 2056	1664	Java.exe	94
PID 1664 wrote to memory of 2056	1664	Java.exe	94
PID 2056 wrote to memory of 4384	2056	Java.exe	96
PID 2056 wrote to memory of 4384	2056	Java.exe	96
PID 2056 wrote to memory of 4384	2056	Java.exe	96

C:\Users\Admin\AppData\Local\Temp\85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe"
1⤵
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1296
- C:\Users\Admin\AppData\Local\Temp\85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:1396
- - C:\Users\Admin\AppData\Roaming\Java.exe
    "C:\Users\Admin\AppData\Roaming\Java.exe"
    3⤵
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1664
  - - C:\Users\Admin\AppData\Roaming\Java.exe
      "C:\Users\Admin\AppData\Roaming\Java.exe"
      4⤵
      Drops startup file
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2056
    - - C:\Windows\SysWOW64\netsh.exe
        
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Java.exe" "Java.exe" ENABLE
        5⤵
        Modifies Windows Firewall
        
        PID:4384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\85c70c3437ebe4b0b630a653b7a480ab_JaffaCakes118.exe.log
Size 496B
SHA256 8d0edecf54cbbdf7981c8e41a3ed8621503188a87415f9af0fb8d890b138c349
MD5 cb76b18ebed3a9f05a14aed43d35fba6
SHA1 836a4b4e351846fca08b84149cb734cb59b8c0d6
SHA512 7631141e4a6dda29452ada666326837372cd3d045f773006f63d9eff15d9432ed00029d9108a72c1a3b858377600a2aab2c9ec03764285c8801b6019babcf21c
MD5 SHA1 SHA512

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Java.exe

Path C:\Users\Admin\AppData\Roaming\Java.exe
Size 232KB
SHA256 c60472bb288cdc3a6f6e3a1b8259cb456946c52ec6c384235aa6f497d3f12e55
MD5 85c70c3437ebe4b0b630a653b7a480ab
SHA1 d9466c679bfbfde3a5437d8705cc3bf084a32795
SHA512 17a0a917552b45294d50e4f1d0c19515f242f3318da1bb06c74f5201c076b3a7e9df88439ea9ed3081934cbd0e25afeeb45be7dfb251d19487ca388714127a8b
SSDEEP 1536:TXgU1uGxpvZQ7FO6J1xdLr2JTqzUnQJJEXvQduxMM:TXgU1pRQE6J1xmuUnQJuXIdux
MD5 SHA1 SHA512 SSDEEP

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memory/1296-9-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/1296-1-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/1296-2-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/1296-32-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/1296-0-0x00000000749F2000-0x00000000749F3000-memory.dmp

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memory/1396-4-0x0000000000400000-0x000000000040A000-memory.dmp

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memory/1396-8-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/1396-6-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/1396-23-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/1396-3-0x0000000000400000-0x000000000040A000-memory.dmp

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memory/1664-22-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/1664-25-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/1664-24-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/1664-31-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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