njrat | 3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6

General

Target

3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exe
Size

61KB
MD5

7de96407cfc936824dfe56e9d8ae8de4
SHA1

277d62d7bc00b49e331c6eb92632434ff167bf4c
SHA256

3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6
SHA512

062f2d2e71ccc38cd3d7804f57f020a4c298981a3d2416244816616d184109abe2866ab00e55a895e2e754d3045945c593ba94d6a805c1de41d7d0bba0436617
SSDEEP

768:sgR3hPtQhtOKMUJaUPhzpjL3nxgKBf+iAFscscGAy9vHHgOXFjGHnUQ/o:sgX6h8JUJaGvxb2spjZHgO1jR

Score

10^/10

njrat hacked evasion trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

kirkukihama.no-ip.biz:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes

reg_key
5cd8f17f4086744065eb0992a09e05a2
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 2 IoCs

Processes:

C# Code Source Generator V2.0.exeTrojan.exe

pid process

2032 C# Code Source Generator V2.0.exe
1436 Trojan.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1976 netsh.exe
Loads dropped DLL 2 IoCs

Processes:

3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exeC# Code Source Generator V2.0.exe

pid process

812 3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exe
2032 C# Code Source Generator V2.0.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
2032	C# Code Source Generator V2.0.exe
1436	Trojan.exe

pid	process
1976	netsh.exe

pid	process
812	3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exe
2032	C# Code Source Generator V2.0.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

Trojan.exe

pid	process
1436	Trojan.exe
1436	Trojan.exe
1436	Trojan.exe
1436	Trojan.exe
1436	Trojan.exe
1436	Trojan.exe
1436	Trojan.exe
1436	Trojan.exe
1436	Trojan.exe
1436	Trojan.exe
1436	Trojan.exe
1436	Trojan.exe
1436	Trojan.exe
1436	Trojan.exe
1436	Trojan.exe
1436	Trojan.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Trojan.exe

description pid process

Token: SeDebugPrivilege 1436 Trojan.exe

description	pid	process
Token: SeDebugPrivilege	1436	Trojan.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exeC# Code Source Generator V2.0.exeTrojan.exe

description	pid	process	target process
PID 812 wrote to memory of 2032	812	3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exe	C# Code Source Generator V2.0.exe
PID 812 wrote to memory of 2032	812	3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exe	C# Code Source Generator V2.0.exe
PID 812 wrote to memory of 2032	812	3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exe	C# Code Source Generator V2.0.exe
PID 812 wrote to memory of 2032	812	3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exe	C# Code Source Generator V2.0.exe
PID 2032 wrote to memory of 1436	2032	C# Code Source Generator V2.0.exe	Trojan.exe
PID 2032 wrote to memory of 1436	2032	C# Code Source Generator V2.0.exe	Trojan.exe
PID 2032 wrote to memory of 1436	2032	C# Code Source Generator V2.0.exe	Trojan.exe
PID 2032 wrote to memory of 1436	2032	C# Code Source Generator V2.0.exe	Trojan.exe
PID 1436 wrote to memory of 1976	1436	Trojan.exe	netsh.exe
PID 1436 wrote to memory of 1976	1436	Trojan.exe	netsh.exe
PID 1436 wrote to memory of 1976	1436	Trojan.exe	netsh.exe
PID 1436 wrote to memory of 1976	1436	Trojan.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exe
"C:\Users\Admin\AppData\Local\Temp\3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:812

C:\Users\Admin\AppData\Local\Temp\server\C# Code Source Generator V2.0.exe
"C:\Users\Admin\AppData\Local\Temp\server\C# Code Source Generator V2.0.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2032

C:\Users\Admin\AppData\Local\Temp\Trojan.exe
"C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1436

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE
4⤵
- Modifies Windows Firewall
PID:1976

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
29KB

MD5
b5fc08f897b74a606e0a575b45a51586

SHA1
c83891a3959a2a08f5b9c4ebf161a43c53fbda12

SHA256
f5a4a22d6bdea9a4d1965d07e27c81882a02e8c8607c58ced25c8feb3141c0e6

SHA512
9320cfcdea9b9ffbeb50c73e70bb3710c9fb0eaac0ecd4fa4095e5e22599babfd59cf175a123d0afab3aa46da9629cf23257eb5e6b32045c4f7a5f34a5f09c70

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

Filesize
29KB

MD5
b5fc08f897b74a606e0a575b45a51586

SHA1
c83891a3959a2a08f5b9c4ebf161a43c53fbda12

SHA256
f5a4a22d6bdea9a4d1965d07e27c81882a02e8c8607c58ced25c8feb3141c0e6

SHA512
9320cfcdea9b9ffbeb50c73e70bb3710c9fb0eaac0ecd4fa4095e5e22599babfd59cf175a123d0afab3aa46da9629cf23257eb5e6b32045c4f7a5f34a5f09c70

Download Submit
C:\Users\Admin\AppData\Local\Temp\server\C# Code Source Generator V2.0.exe

Filesize
29KB

MD5
b5fc08f897b74a606e0a575b45a51586

SHA1
c83891a3959a2a08f5b9c4ebf161a43c53fbda12

SHA256
f5a4a22d6bdea9a4d1965d07e27c81882a02e8c8607c58ced25c8feb3141c0e6

SHA512
9320cfcdea9b9ffbeb50c73e70bb3710c9fb0eaac0ecd4fa4095e5e22599babfd59cf175a123d0afab3aa46da9629cf23257eb5e6b32045c4f7a5f34a5f09c70

Download Submit
C:\Users\Admin\AppData\Local\Temp\server\C# Code Source Generator V2.0.exe

Filesize
29KB

MD5
b5fc08f897b74a606e0a575b45a51586

SHA1
c83891a3959a2a08f5b9c4ebf161a43c53fbda12

SHA256
f5a4a22d6bdea9a4d1965d07e27c81882a02e8c8607c58ced25c8feb3141c0e6

SHA512
9320cfcdea9b9ffbeb50c73e70bb3710c9fb0eaac0ecd4fa4095e5e22599babfd59cf175a123d0afab3aa46da9629cf23257eb5e6b32045c4f7a5f34a5f09c70

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

Filesize
29KB

MD5
b5fc08f897b74a606e0a575b45a51586

SHA1
c83891a3959a2a08f5b9c4ebf161a43c53fbda12

SHA256
f5a4a22d6bdea9a4d1965d07e27c81882a02e8c8607c58ced25c8feb3141c0e6

SHA512
9320cfcdea9b9ffbeb50c73e70bb3710c9fb0eaac0ecd4fa4095e5e22599babfd59cf175a123d0afab3aa46da9629cf23257eb5e6b32045c4f7a5f34a5f09c70

Download Submit
\Users\Admin\AppData\Local\Temp\server\C# Code Source Generator V2.0.exe

Filesize
29KB

MD5
b5fc08f897b74a606e0a575b45a51586

SHA1
c83891a3959a2a08f5b9c4ebf161a43c53fbda12

SHA256
f5a4a22d6bdea9a4d1965d07e27c81882a02e8c8607c58ced25c8feb3141c0e6

SHA512
9320cfcdea9b9ffbeb50c73e70bb3710c9fb0eaac0ecd4fa4095e5e22599babfd59cf175a123d0afab3aa46da9629cf23257eb5e6b32045c4f7a5f34a5f09c70

Download Submit
memory/812-54-0x0000000000220000-0x0000000000236000-memory.dmp

Filesize
88KB

Download
memory/812-56-0x0000000075131000-0x0000000075133000-memory.dmp

Filesize
8KB

Download
memory/812-55-0x0000000000250000-0x000000000025C000-memory.dmp

Filesize
48KB

Download
memory/1436-72-0x000000006F490000-0x000000006FA3B000-memory.dmp

Filesize
5.7MB

Download
memory/1436-64-0x0000000000000000-mapping.dmp

Download
memory/1436-71-0x000000006F490000-0x000000006FA3B000-memory.dmp

Filesize
5.7MB

Download
memory/1976-69-0x0000000000000000-mapping.dmp

Download
memory/2032-58-0x0000000000000000-mapping.dmp

Download
memory/2032-68-0x000000006F490000-0x000000006FA3B000-memory.dmp

Filesize
5.7MB

Download
memory/2032-62-0x000000006F490000-0x000000006FA3B000-memory.dmp

Filesize
5.7MB

Download

Analysis

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