njrat | e400c00830ed19a7ab14c50aa1d32a0a4a29c5a362aa03aa1eb7a8683ac0fb80

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
06/06/2024, 07:32

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General

Target
e400c00830ed19a7ab14c50aa1d32a0a4a29c5a362aa03aa1eb7a8683ac0fb80.exe
Size 69KB
Sample240606-jcykbscc62
SHA256 e400c00830ed19a7ab14c50aa1d32a0a4a29c5a362aa03aa1eb7a8683ac0fb80
MD5 f3188fa55e2b12139d6e15f9d83e0ead
SHA1 37ead27ba99752612acdcf6739ac8eee9f9bdc77
SHA512 56591a9e975409453e4b4907d5c683818a3bd21e5f767960d204df3cffa08cb0e702b643791bdb3d5740072cf9b82a2cbe9f04246489f9fc8a0d0dbe9c4e3ecd
SSDEEP 768:6PEp1QkqH75EZGA49jXvtYDwYFGEV3Y5lRf+Ik6gW9VtR0UIJcOA0NhX5WCyk2Dm:XWoT+hYMYFFi5lHgUWPvNhJWCyBcr
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

zuma-deluxe.myvnc.com:1983

Mutex

121d81911e5c917757c7387f71a5fe76

Attributes

reg_key
121d81911e5c917757c7387f71a5fe76
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Detects executables packed with Yano Obfuscator 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023414-16.dat	INDICATOR_EXE_Packed_Yano

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4472	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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	e400c00830ed19a7ab14c50aa1d32a0a4a29c5a362aa03aa1eb7a8683ac0fb80.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\121d81911e5c917757c7387f71a5fe76.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\121d81911e5c917757c7387f71a5fe76.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
3976	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-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\121d81911e5c917757c7387f71a5fe76 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\121d81911e5c917757c7387f71a5fe76 = "\"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	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2476 wrote to memory of 3976	2476	e400c00830ed19a7ab14c50aa1d32a0a4a29c5a362aa03aa1eb7a8683ac0fb80.exe	89
PID 2476 wrote to memory of 3976	2476	e400c00830ed19a7ab14c50aa1d32a0a4a29c5a362aa03aa1eb7a8683ac0fb80.exe	89
PID 3976 wrote to memory of 4472	3976	server.exe	93
PID 3976 wrote to memory of 4472	3976	server.exe	93

C:\Users\Admin\AppData\Local\Temp\e400c00830ed19a7ab14c50aa1d32a0a4a29c5a362aa03aa1eb7a8683ac0fb80.exe
"C:\Users\Admin\AppData\Local\Temp\e400c00830ed19a7ab14c50aa1d32a0a4a29c5a362aa03aa1eb7a8683ac0fb80.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2476
- 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:3976
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:4472

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

server.exe

Path C:\Users\Admin\AppData\Local\Temp\server.exe
Size 69KB
SHA256 e400c00830ed19a7ab14c50aa1d32a0a4a29c5a362aa03aa1eb7a8683ac0fb80
MD5 f3188fa55e2b12139d6e15f9d83e0ead
SHA1 37ead27ba99752612acdcf6739ac8eee9f9bdc77
SHA512 56591a9e975409453e4b4907d5c683818a3bd21e5f767960d204df3cffa08cb0e702b643791bdb3d5740072cf9b82a2cbe9f04246489f9fc8a0d0dbe9c4e3ecd
SSDEEP 768:6PEp1QkqH75EZGA49jXvtYDwYFGEV3Y5lRf+Ik6gW9VtR0UIJcOA0NhX5WCyk2Dm:XWoT+hYMYFFi5lHgUWPvNhJWCyBcr
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2476-5-0x000000001BB90000-0x000000001C05E000-memory.dmp

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memory/2476-3-0x000000001B610000-0x000000001B6B6000-memory.dmp

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memory/2476-0-0x00007FFFE37F5000-0x00007FFFE37F6000-memory.dmp

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memory/2476-4-0x00007FFFE3540000-0x00007FFFE3EE1000-memory.dmp

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memory/2476-1-0x00000000010E0000-0x00000000010EA000-memory.dmp

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memory/2476-2-0x00007FFFE3540000-0x00007FFFE3EE1000-memory.dmp

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memory/2476-19-0x00007FFFE3540000-0x00007FFFE3EE1000-memory.dmp

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memory/3976-18-0x00007FFFE3540000-0x00007FFFE3EE1000-memory.dmp

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memory/3976-20-0x00007FFFE3540000-0x00007FFFE3EE1000-memory.dmp

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memory/3976-21-0x00007FFFE3540000-0x00007FFFE3EE1000-memory.dmp

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memory/3976-23-0x000000001C570000-0x000000001C60C000-memory.dmp

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memory/3976-24-0x00000000013C0000-0x00000000013C8000-memory.dmp

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memory/3976-25-0x00007FFFE3540000-0x00007FFFE3EE1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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