njrat | 9088a4a98ca2b0862d34cb18267cb25b4435bef947fe8bd3071b1222f7b774c4

General

Target

9088a4a98ca2b0862d34cb18267cb25b4435bef947fe8bd3071b1222f7b774c4.exe
Size

214KB
MD5

871a3bc78da35b8fb741767ca5b913f9
SHA1

417d92e9ca258460fa139008bb9ecd609d7066d6
SHA256

9088a4a98ca2b0862d34cb18267cb25b4435bef947fe8bd3071b1222f7b774c4
SHA512

92d4f900cf0fa35487d300f5692e73ea1bee07d3bbdd3b0344833c6937091e96545b5969db6f9fb68b39b1525527075ff291081679e103a6c0acd6dc6be02e6b
SSDEEP

6144:GO7OEm960r90zd7qr9pJdHcy805rYYG6cY3:D6xSz1qHfHcyBBLG83

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

njrat7p.no-ip.org:5552

Mutex

9036b40d3b738ec82d6d7fa0c2c48267

Attributes

reg_key
9036b40d3b738ec82d6d7fa0c2c48267
splitter
|'|'|

Signatures

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

Processes:

TempServer.exeGoogleChromeUpdate.exe

pid process

468 TempServer.exe
1700 GoogleChromeUpdate.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1124 netsh.exe

pid	process
468	TempServer.exe
1700	GoogleChromeUpdate.exe

pid	process
1124	netsh.exe

Drops startup file 2 IoCs

Processes:

GoogleChromeUpdate.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9036b40d3b738ec82d6d7fa0c2c48267.exe	GoogleChromeUpdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9036b40d3b738ec82d6d7fa0c2c48267.exe	GoogleChromeUpdate.exe

Loads dropped DLL 1 IoCs

Processes:

TempServer.exe

pid process

468 TempServer.exe

pid	process
468	TempServer.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

GoogleChromeUpdate.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\9036b40d3b738ec82d6d7fa0c2c48267 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\GoogleChromeUpdate.exe\" .."	GoogleChromeUpdate.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\9036b40d3b738ec82d6d7fa0c2c48267 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\GoogleChromeUpdate.exe\" .."	GoogleChromeUpdate.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 16 IoCs

Processes:

GoogleChromeUpdate.exe

pid	process
1700	GoogleChromeUpdate.exe
1700	GoogleChromeUpdate.exe
1700	GoogleChromeUpdate.exe
1700	GoogleChromeUpdate.exe
1700	GoogleChromeUpdate.exe
1700	GoogleChromeUpdate.exe
1700	GoogleChromeUpdate.exe
1700	GoogleChromeUpdate.exe
1700	GoogleChromeUpdate.exe
1700	GoogleChromeUpdate.exe
1700	GoogleChromeUpdate.exe
1700	GoogleChromeUpdate.exe
1700	GoogleChromeUpdate.exe
1700	GoogleChromeUpdate.exe
1700	GoogleChromeUpdate.exe
1700	GoogleChromeUpdate.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

GoogleChromeUpdate.exe

description pid process

Token: SeDebugPrivilege 1700 GoogleChromeUpdate.exe

description	pid	process
Token: SeDebugPrivilege	1700	GoogleChromeUpdate.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

9088a4a98ca2b0862d34cb18267cb25b4435bef947fe8bd3071b1222f7b774c4.exeTempServer.exeGoogleChromeUpdate.exe

description	pid	process	target process
PID 1392 wrote to memory of 468	1392	9088a4a98ca2b0862d34cb18267cb25b4435bef947fe8bd3071b1222f7b774c4.exe	TempServer.exe
PID 1392 wrote to memory of 468	1392	9088a4a98ca2b0862d34cb18267cb25b4435bef947fe8bd3071b1222f7b774c4.exe	TempServer.exe
PID 1392 wrote to memory of 468	1392	9088a4a98ca2b0862d34cb18267cb25b4435bef947fe8bd3071b1222f7b774c4.exe	TempServer.exe
PID 1392 wrote to memory of 468	1392	9088a4a98ca2b0862d34cb18267cb25b4435bef947fe8bd3071b1222f7b774c4.exe	TempServer.exe
PID 468 wrote to memory of 1700	468	TempServer.exe	GoogleChromeUpdate.exe
PID 468 wrote to memory of 1700	468	TempServer.exe	GoogleChromeUpdate.exe
PID 468 wrote to memory of 1700	468	TempServer.exe	GoogleChromeUpdate.exe
PID 468 wrote to memory of 1700	468	TempServer.exe	GoogleChromeUpdate.exe
PID 468 wrote to memory of 1700	468	TempServer.exe	GoogleChromeUpdate.exe
PID 468 wrote to memory of 1700	468	TempServer.exe	GoogleChromeUpdate.exe
PID 468 wrote to memory of 1700	468	TempServer.exe	GoogleChromeUpdate.exe
PID 1700 wrote to memory of 1124	1700	GoogleChromeUpdate.exe	netsh.exe
PID 1700 wrote to memory of 1124	1700	GoogleChromeUpdate.exe	netsh.exe
PID 1700 wrote to memory of 1124	1700	GoogleChromeUpdate.exe	netsh.exe
PID 1700 wrote to memory of 1124	1700	GoogleChromeUpdate.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\9088a4a98ca2b0862d34cb18267cb25b4435bef947fe8bd3071b1222f7b774c4.exe
"C:\Users\Admin\AppData\Local\Temp\9088a4a98ca2b0862d34cb18267cb25b4435bef947fe8bd3071b1222f7b774c4.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1392

C:\Users\Admin\AppData\Local\TempServer.exe
"C:\Users\Admin\AppData\Local\TempServer.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:468

C:\Users\Admin\AppData\Local\Temp\GoogleChromeUpdate.exe
"C:\Users\Admin\AppData\Local\Temp\GoogleChromeUpdate.exe"
3⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1700

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\GoogleChromeUpdate.exe" "GoogleChromeUpdate.exe" ENABLE
4⤵
- Modifies Windows Firewall
PID:1124

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\TempServer.exe
Filesize
51KB

MD5
8b2b77f9ce5dae8c3dd4ed69abacf72c

SHA1
de5e65b76d3f7360d847c3de24090ca6aa590dc6

SHA256
a52a9bf7115ec45bec7c20a90a4e6d48ae0492b8eb8e22bb6f94c55f8a33db5b

SHA512
f33fc14a6135bd62bd4a60ca4a3f7f7cdceb433ca30c11568d13d496453984de53f66d1e69393f36fdf669ae7c9ba177df1be90f985e6c1983db620e3cca9ff9

Download Submit
C:\Users\Admin\AppData\Local\TempServer.exe
Filesize
51KB

MD5
8b2b77f9ce5dae8c3dd4ed69abacf72c

SHA1
de5e65b76d3f7360d847c3de24090ca6aa590dc6

SHA256
a52a9bf7115ec45bec7c20a90a4e6d48ae0492b8eb8e22bb6f94c55f8a33db5b

SHA512
f33fc14a6135bd62bd4a60ca4a3f7f7cdceb433ca30c11568d13d496453984de53f66d1e69393f36fdf669ae7c9ba177df1be90f985e6c1983db620e3cca9ff9

Download Submit
C:\Users\Admin\AppData\Local\Temp\GoogleChromeUpdate.exe
Filesize
51KB

MD5
8b2b77f9ce5dae8c3dd4ed69abacf72c

SHA1
de5e65b76d3f7360d847c3de24090ca6aa590dc6

SHA256
a52a9bf7115ec45bec7c20a90a4e6d48ae0492b8eb8e22bb6f94c55f8a33db5b

SHA512
f33fc14a6135bd62bd4a60ca4a3f7f7cdceb433ca30c11568d13d496453984de53f66d1e69393f36fdf669ae7c9ba177df1be90f985e6c1983db620e3cca9ff9

Download Submit
C:\Users\Admin\AppData\Local\Temp\GoogleChromeUpdate.exe
Filesize
51KB

MD5
8b2b77f9ce5dae8c3dd4ed69abacf72c

SHA1
de5e65b76d3f7360d847c3de24090ca6aa590dc6

SHA256
a52a9bf7115ec45bec7c20a90a4e6d48ae0492b8eb8e22bb6f94c55f8a33db5b

SHA512
f33fc14a6135bd62bd4a60ca4a3f7f7cdceb433ca30c11568d13d496453984de53f66d1e69393f36fdf669ae7c9ba177df1be90f985e6c1983db620e3cca9ff9

Download Submit
\Users\Admin\AppData\Local\Temp\GoogleChromeUpdate.exe
Filesize
51KB

MD5
8b2b77f9ce5dae8c3dd4ed69abacf72c

SHA1
de5e65b76d3f7360d847c3de24090ca6aa590dc6

SHA256
a52a9bf7115ec45bec7c20a90a4e6d48ae0492b8eb8e22bb6f94c55f8a33db5b

SHA512
f33fc14a6135bd62bd4a60ca4a3f7f7cdceb433ca30c11568d13d496453984de53f66d1e69393f36fdf669ae7c9ba177df1be90f985e6c1983db620e3cca9ff9

Download Submit
memory/468-60-0x00000000759C1000-0x00000000759C3000-memory.dmp

Filesize
8KB

Download
memory/468-61-0x0000000074490000-0x0000000074A3B000-memory.dmp

Filesize
5.7MB

Download
memory/468-56-0x0000000000000000-mapping.dmp

Download
memory/468-67-0x0000000074490000-0x0000000074A3B000-memory.dmp

Filesize
5.7MB

Download
memory/1124-68-0x0000000000000000-mapping.dmp

Download
memory/1392-59-0x0000000001F07000-0x0000000001F26000-memory.dmp

Filesize
124KB

Download
memory/1392-54-0x000007FEF36C0000-0x000007FEF40E3000-memory.dmp

Filesize
10.1MB

Download
memory/1392-55-0x000007FEF2620000-0x000007FEF36B6000-memory.dmp

Filesize
16.6MB

Download
memory/1700-63-0x0000000000000000-mapping.dmp

Download
memory/1700-70-0x0000000074490000-0x0000000074A3B000-memory.dmp

Filesize
5.7MB

Download
memory/1700-71-0x0000000074490000-0x0000000074A3B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads