njrat | eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2

Analysis

max time kernel
152s
max time network
44s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 10:02

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General

Target

eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
Size

1.4MB
MD5

db0833bbdf05366179475429fb48346a
SHA1

c40dd88898948630b8ab8c78b1c68afdcf776554
SHA256

eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2
SHA512

92f726c3b4362287376554b13494d7a94371f7409ce315a38947e21a119392b716b37895c752550877f5dacb242ecd4e6d21be9acca9a637a68af1a590e450e2
SSDEEP

24576:JFLjt/NTbdbzs7+3N5zXN2oRfpZFL/5wXKCyFOBsrvwqSvytsw/KaYUm97MaAgN3:DarTKM

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Hacked

78.58.25.3:1604

Mutex

3c81f15329f5d2e1b97665d2e5393ea1

Attributes

reg_key
3c81f15329f5d2e1b97665d2e5393ea1
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 3 IoCs

Processes:

eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exeserver.exeserver.exe

pid process

1568 eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
544 server.exe
1800 server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1320 netsh.exe

pid	process
1568	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
544	server.exe
1800	server.exe

pid	process
1320	netsh.exe

Loads dropped DLL 5 IoCs

Processes:

eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exeeeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exeserver.exe

pid	process
1388	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
1388	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
1568	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
1568	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
544	server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\obHoDUySCH = "C:\\Users\\Admin\\AppData\\Roaming\\dGNJW0iI\\cXUN85N.exe.lnk"	reg.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exeserver.exe

description	pid	process	target process
PID 1388 set thread context of 1568	1388	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
PID 544 set thread context of 1800	544	server.exe	server.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exeserver.exe

pid process

1388 eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
544 server.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exeserver.exe

description	pid	process
Token: SeDebugPrivilege	1388	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
Token: SeDebugPrivilege	544	server.exe

Suspicious use of WriteProcessMemory 34 IoCs

Processes:

eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.execmd.exeeeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exeserver.exeserver.exe

description	pid	process	target process
PID 1388 wrote to memory of 792	1388	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe	cmd.exe
PID 1388 wrote to memory of 792	1388	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe	cmd.exe
PID 1388 wrote to memory of 792	1388	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe	cmd.exe
PID 1388 wrote to memory of 792	1388	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe	cmd.exe
PID 792 wrote to memory of 1724	792	cmd.exe	reg.exe
PID 792 wrote to memory of 1724	792	cmd.exe	reg.exe
PID 792 wrote to memory of 1724	792	cmd.exe	reg.exe
PID 792 wrote to memory of 1724	792	cmd.exe	reg.exe
PID 1388 wrote to memory of 1568	1388	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
PID 1388 wrote to memory of 1568	1388	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
PID 1388 wrote to memory of 1568	1388	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
PID 1388 wrote to memory of 1568	1388	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
PID 1388 wrote to memory of 1568	1388	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
PID 1388 wrote to memory of 1568	1388	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
PID 1388 wrote to memory of 1568	1388	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
PID 1388 wrote to memory of 1568	1388	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
PID 1388 wrote to memory of 1568	1388	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
PID 1568 wrote to memory of 544	1568	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe	server.exe
PID 1568 wrote to memory of 544	1568	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe	server.exe
PID 1568 wrote to memory of 544	1568	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe	server.exe
PID 1568 wrote to memory of 544	1568	eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe	server.exe
PID 544 wrote to memory of 1800	544	server.exe	server.exe
PID 544 wrote to memory of 1800	544	server.exe	server.exe
PID 544 wrote to memory of 1800	544	server.exe	server.exe
PID 544 wrote to memory of 1800	544	server.exe	server.exe
PID 544 wrote to memory of 1800	544	server.exe	server.exe
PID 544 wrote to memory of 1800	544	server.exe	server.exe
PID 544 wrote to memory of 1800	544	server.exe	server.exe
PID 544 wrote to memory of 1800	544	server.exe	server.exe
PID 544 wrote to memory of 1800	544	server.exe	server.exe
PID 1800 wrote to memory of 1320	1800	server.exe	netsh.exe
PID 1800 wrote to memory of 1320	1800	server.exe	netsh.exe
PID 1800 wrote to memory of 1320	1800	server.exe	netsh.exe
PID 1800 wrote to memory of 1320	1800	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
"C:\Users\Admin\AppData\Local\Temp\eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1388
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "obHoDUySCH" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\dGNJW0iI\cXUN85N.exe.lnk"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:792
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "obHoDUySCH" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\dGNJW0iI\cXUN85N.exe.lnk"
    3⤵
    - Adds Run key to start application
    PID:1724
- C:\Users\Admin\AppData\Local\Temp\eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe
  "C:\Users\Admin\AppData\Local\Temp\eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1568
- - C:\Users\Admin\AppData\Local\Temp\server.exe
    "C:\Users\Admin\AppData\Local\Temp\server.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:544
  - - C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:1800
    - - C:\Windows\SysWOW64\netsh.exe
        
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        5⤵
        Modifies Windows Firewall
        
        PID:1320

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe

Filesize
1.4MB

MD5
db0833bbdf05366179475429fb48346a

SHA1
c40dd88898948630b8ab8c78b1c68afdcf776554

SHA256
eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2

SHA512
92f726c3b4362287376554b13494d7a94371f7409ce315a38947e21a119392b716b37895c752550877f5dacb242ecd4e6d21be9acca9a637a68af1a590e450e2

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

Filesize
1.4MB

MD5
db0833bbdf05366179475429fb48346a

SHA1
c40dd88898948630b8ab8c78b1c68afdcf776554

SHA256
eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2

SHA512
92f726c3b4362287376554b13494d7a94371f7409ce315a38947e21a119392b716b37895c752550877f5dacb242ecd4e6d21be9acca9a637a68af1a590e450e2

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

Filesize
1.4MB

MD5
db0833bbdf05366179475429fb48346a

SHA1
c40dd88898948630b8ab8c78b1c68afdcf776554

SHA256
eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2

SHA512
92f726c3b4362287376554b13494d7a94371f7409ce315a38947e21a119392b716b37895c752550877f5dacb242ecd4e6d21be9acca9a637a68af1a590e450e2

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

Filesize
1.4MB

MD5
db0833bbdf05366179475429fb48346a

SHA1
c40dd88898948630b8ab8c78b1c68afdcf776554

SHA256
eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2

SHA512
92f726c3b4362287376554b13494d7a94371f7409ce315a38947e21a119392b716b37895c752550877f5dacb242ecd4e6d21be9acca9a637a68af1a590e450e2

Download Submit
\Users\Admin\AppData\Local\Temp\eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2.exe

Filesize
1.4MB

MD5
db0833bbdf05366179475429fb48346a

SHA1
c40dd88898948630b8ab8c78b1c68afdcf776554

SHA256
eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2

SHA512
92f726c3b4362287376554b13494d7a94371f7409ce315a38947e21a119392b716b37895c752550877f5dacb242ecd4e6d21be9acca9a637a68af1a590e450e2

Download Submit
\Users\Admin\AppData\Local\Temp\server.exe

Filesize
1.4MB

MD5
db0833bbdf05366179475429fb48346a

SHA1
c40dd88898948630b8ab8c78b1c68afdcf776554

SHA256
eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2

SHA512
92f726c3b4362287376554b13494d7a94371f7409ce315a38947e21a119392b716b37895c752550877f5dacb242ecd4e6d21be9acca9a637a68af1a590e450e2

Download Submit
\Users\Admin\AppData\Local\Temp\server.exe

Filesize
1.4MB

MD5
db0833bbdf05366179475429fb48346a

SHA1
c40dd88898948630b8ab8c78b1c68afdcf776554

SHA256
eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2

SHA512
92f726c3b4362287376554b13494d7a94371f7409ce315a38947e21a119392b716b37895c752550877f5dacb242ecd4e6d21be9acca9a637a68af1a590e450e2

Download Submit
\Users\Admin\AppData\Local\Temp\server.exe

Filesize
1.4MB

MD5
db0833bbdf05366179475429fb48346a

SHA1
c40dd88898948630b8ab8c78b1c68afdcf776554

SHA256
eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2

SHA512
92f726c3b4362287376554b13494d7a94371f7409ce315a38947e21a119392b716b37895c752550877f5dacb242ecd4e6d21be9acca9a637a68af1a590e450e2

Download Submit
\Users\Admin\AppData\Roaming\dGNJW0iI\cXUN85N.exe

Filesize
1.4MB

MD5
db0833bbdf05366179475429fb48346a

SHA1
c40dd88898948630b8ab8c78b1c68afdcf776554

SHA256
eeb241cbaeb8035f147c2d776531ce81e8c3037824a8cc7b338ac01c261748b2

SHA512
92f726c3b4362287376554b13494d7a94371f7409ce315a38947e21a119392b716b37895c752550877f5dacb242ecd4e6d21be9acca9a637a68af1a590e450e2

Download Submit
memory/544-93-0x0000000074C70000-0x000000007521B000-memory.dmp

Filesize
5.7MB

Download
memory/544-78-0x0000000000000000-mapping.dmp

Download
memory/792-58-0x0000000000000000-mapping.dmp

Download
memory/1320-99-0x0000000000000000-mapping.dmp

Download
memory/1388-75-0x0000000074C70000-0x000000007521B000-memory.dmp

Filesize
5.7MB

Download
memory/1388-54-0x00000000768A1000-0x00000000768A3000-memory.dmp

Filesize
8KB

Download
memory/1388-56-0x0000000074C70000-0x000000007521B000-memory.dmp

Filesize
5.7MB

Download
memory/1388-55-0x0000000074C70000-0x000000007521B000-memory.dmp

Filesize
5.7MB

Download
memory/1568-61-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1568-65-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1568-72-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1568-70-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1568-67-0x000000000040747E-mapping.dmp

Download
memory/1568-66-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1568-82-0x0000000074C70000-0x000000007521B000-memory.dmp

Filesize
5.7MB

Download
memory/1568-74-0x0000000074C70000-0x000000007521B000-memory.dmp

Filesize
5.7MB

Download
memory/1568-64-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1568-62-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1724-59-0x0000000000000000-mapping.dmp

Download
memory/1800-90-0x000000000040747E-mapping.dmp

Download
memory/1800-98-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/1800-101-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download