njrat | 99d052fadd8fa37b5642dbd4c42f3e5c061aafc8e894ba7a0fc73f3fe5a6b09d

Analysis

max time kernel
149s
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
05/06/2024, 07:30

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General

Target
977a90e9197fcbe2c5a04d3af4104a0f_JaffaCakes118.exe
Size 122KB
Sample240605-jbvr2sad84
SHA256 99d052fadd8fa37b5642dbd4c42f3e5c061aafc8e894ba7a0fc73f3fe5a6b09d
MD5 977a90e9197fcbe2c5a04d3af4104a0f
SHA1 58775d091c45e3a3d39116e3e529a54c05f4f1ea
SHA512 963f6be0a843f48430aea9d97ff94a8228eb2855bd5a27122f4cf79bb2a29bda5000f838e94a1cbdaf52660500154ad96bb6a85921fae7dbe535908ac4b7ae99
SSDEEP 3072:+i9E5pVd5zaVlR4bq2Sgs7BRnfvyrx0YZ:+i08Lb29s7nf6rx0
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat hacked by hidden person evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Hacked By HiDDen PerSOn

112.154.163.88:5229

Mutex

ffb49a57bc292c1e8a2ee1eeb03a3e83

Attributes

reg_key
ffb49a57bc292c1e8a2ee1eeb03a3e83
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
1880	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-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation	977a90e9197fcbe2c5a04d3af4104a0f_JaffaCakes118.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ffb49a57bc292c1e8a2ee1eeb03a3e83.exe	System32.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ffb49a57bc292c1e8a2ee1eeb03a3e83.exe	System32.exe

Executes dropped EXE 1 IoCs

pid	Process
1260	System32.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-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ffb49a57bc292c1e8a2ee1eeb03a3e83 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System32.exe\" .."	System32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ffb49a57bc292c1e8a2ee1eeb03a3e83 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System32.exe\" .."	System32.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	1260	System32.exe
Token: 33	1260	System32.exe
Token: SeIncBasePriorityPrivilege	1260	System32.exe
Token: 33	1260	System32.exe
Token: SeIncBasePriorityPrivilege	1260	System32.exe
Token: 33	1260	System32.exe
Token: SeIncBasePriorityPrivilege	1260	System32.exe
Token: 33	1260	System32.exe
Token: SeIncBasePriorityPrivilege	1260	System32.exe
Token: 33	1260	System32.exe
Token: SeIncBasePriorityPrivilege	1260	System32.exe
Token: 33	1260	System32.exe
Token: SeIncBasePriorityPrivilege	1260	System32.exe
Token: 33	1260	System32.exe
Token: SeIncBasePriorityPrivilege	1260	System32.exe
Token: 33	1260	System32.exe
Token: SeIncBasePriorityPrivilege	1260	System32.exe
Token: 33	1260	System32.exe
Token: SeIncBasePriorityPrivilege	1260	System32.exe
Token: 33	1260	System32.exe
Token: SeIncBasePriorityPrivilege	1260	System32.exe
Token: 33	1260	System32.exe
Token: SeIncBasePriorityPrivilege	1260	System32.exe
Token: 33	1260	System32.exe
Token: SeIncBasePriorityPrivilege	1260	System32.exe
Token: 33	1260	System32.exe
Token: SeIncBasePriorityPrivilege	1260	System32.exe
Token: 33	1260	System32.exe
Token: SeIncBasePriorityPrivilege	1260	System32.exe
Token: 33	1260	System32.exe
Token: SeIncBasePriorityPrivilege	1260	System32.exe
Token: 33	1260	System32.exe
Token: SeIncBasePriorityPrivilege	1260	System32.exe
Token: 33	1260	System32.exe
Token: SeIncBasePriorityPrivilege	1260	System32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 1260	2708	977a90e9197fcbe2c5a04d3af4104a0f_JaffaCakes118.exe	90
PID 2708 wrote to memory of 1260	2708	977a90e9197fcbe2c5a04d3af4104a0f_JaffaCakes118.exe	90
PID 2708 wrote to memory of 1260	2708	977a90e9197fcbe2c5a04d3af4104a0f_JaffaCakes118.exe	90
PID 1260 wrote to memory of 1880	1260	System32.exe	94
PID 1260 wrote to memory of 1880	1260	System32.exe	94
PID 1260 wrote to memory of 1880	1260	System32.exe	94

C:\Users\Admin\AppData\Local\Temp\977a90e9197fcbe2c5a04d3af4104a0f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\977a90e9197fcbe2c5a04d3af4104a0f_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Users\Admin\AppData\Local\Temp\System32.exe
  "C:\Users\Admin\AppData\Local\Temp\System32.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1260
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\System32.exe" "System32.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:1880

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

System32.exe

Path C:\Users\Admin\AppData\Local\Temp\System32.exe
Size 122KB
SHA256 99d052fadd8fa37b5642dbd4c42f3e5c061aafc8e894ba7a0fc73f3fe5a6b09d
MD5 977a90e9197fcbe2c5a04d3af4104a0f
SHA1 58775d091c45e3a3d39116e3e529a54c05f4f1ea
SHA512 963f6be0a843f48430aea9d97ff94a8228eb2855bd5a27122f4cf79bb2a29bda5000f838e94a1cbdaf52660500154ad96bb6a85921fae7dbe535908ac4b7ae99
SSDEEP 3072:+i9E5pVd5zaVlR4bq2Sgs7BRnfvyrx0YZ:+i08Lb29s7nf6rx0
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1260-20-0x00000000752E0000-0x0000000075A90000-memory.dmp

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memory/1260-19-0x00000000752E0000-0x0000000075A90000-memory.dmp

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memory/1260-22-0x00000000055D0000-0x0000000005662000-memory.dmp

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memory/1260-23-0x0000000005540000-0x000000000554A000-memory.dmp

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memory/1260-24-0x00000000752E0000-0x0000000075A90000-memory.dmp

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memory/1260-25-0x00000000752E0000-0x0000000075A90000-memory.dmp

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memory/2708-2-0x00000000051D0000-0x000000000526C000-memory.dmp

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memory/2708-3-0x0000000002C10000-0x0000000002C1E000-memory.dmp

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memory/2708-4-0x00000000752E0000-0x0000000075A90000-memory.dmp

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memory/2708-5-0x0000000005AE0000-0x0000000006084000-memory.dmp

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memory/2708-1-0x0000000000830000-0x0000000000856000-memory.dmp

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memory/2708-18-0x00000000752E0000-0x0000000075A90000-memory.dmp

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memory/2708-0-0x00000000752EE000-0x00000000752EF000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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