njrat | fdc9b22a9a4babb44c95f67de6e09a8e8a5ab0c805141739fa81c88ef99d84db

General

Target

fdc9b22a9a4babb44c95f67de6e09a8e8a5ab0c805141739fa81c88ef99d84db.exe
Size

54KB
MD5

0b0be038a905dfbdd3c957664f7567e7
SHA1

05c0cf8270dbb2015ccecbeba4b5d54ddcf92d48
SHA256

fdc9b22a9a4babb44c95f67de6e09a8e8a5ab0c805141739fa81c88ef99d84db
SHA512

cfd01a4175b846c1e0e6324c392eb3100c33009ddb2cffa077f49df902277b9e4744b655182bf8c750961ddc1a3174aa830c5477465633a71c3ef7cfd2ab6963

Score

10^/10

njrat <<%m%>>evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

<<%M%>>

C2

ihebmokhles.no-ip.org:1177

Mutex

854084595525f7929d7da906e0d2d84a

Attributes

reg_key
854084595525f7929d7da906e0d2d84a
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

Svhost.exe

pid process

1632 Svhost.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

804 netsh.exe

pid	process
1632	Svhost.exe

pid	process
804	netsh.exe

Drops startup file 2 IoCs

Processes:

Svhost.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\854084595525f7929d7da906e0d2d84a.exe	Svhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\854084595525f7929d7da906e0d2d84a.exe	Svhost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Svhost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\854084595525f7929d7da906e0d2d84a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Svhost.exe\" .."	Svhost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\854084595525f7929d7da906e0d2d84a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Svhost.exe\" .."	Svhost.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 7 IoCs

Processes:

Svhost.exe

pid process

1632 Svhost.exe
1632 Svhost.exe
1632 Svhost.exe
1632 Svhost.exe
1632 Svhost.exe
1632 Svhost.exe
1632 Svhost.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Svhost.exe

description pid process

Token: SeDebugPrivilege 1632 Svhost.exe

pid	process
1632	Svhost.exe
1632	Svhost.exe
1632	Svhost.exe
1632	Svhost.exe
1632	Svhost.exe
1632	Svhost.exe
1632	Svhost.exe

description	pid	process
Token: SeDebugPrivilege	1632	Svhost.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

fdc9b22a9a4babb44c95f67de6e09a8e8a5ab0c805141739fa81c88ef99d84db.exeSvhost.exe

description	pid	process	target process
PID 2020 wrote to memory of 1632	2020	fdc9b22a9a4babb44c95f67de6e09a8e8a5ab0c805141739fa81c88ef99d84db.exe	Svhost.exe
PID 2020 wrote to memory of 1632	2020	fdc9b22a9a4babb44c95f67de6e09a8e8a5ab0c805141739fa81c88ef99d84db.exe	Svhost.exe
PID 2020 wrote to memory of 1632	2020	fdc9b22a9a4babb44c95f67de6e09a8e8a5ab0c805141739fa81c88ef99d84db.exe	Svhost.exe
PID 1632 wrote to memory of 804	1632	Svhost.exe	netsh.exe
PID 1632 wrote to memory of 804	1632	Svhost.exe	netsh.exe
PID 1632 wrote to memory of 804	1632	Svhost.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\fdc9b22a9a4babb44c95f67de6e09a8e8a5ab0c805141739fa81c88ef99d84db.exe
"C:\Users\Admin\AppData\Local\Temp\fdc9b22a9a4babb44c95f67de6e09a8e8a5ab0c805141739fa81c88ef99d84db.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2020

C:\Users\Admin\AppData\Local\Temp\Svhost.exe
"C:\Users\Admin\AppData\Local\Temp\Svhost.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1632

C:\Windows\system32\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Svhost.exe" "Svhost.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:804

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Svhost.exe
Filesize
54KB

MD5
0b0be038a905dfbdd3c957664f7567e7

SHA1
05c0cf8270dbb2015ccecbeba4b5d54ddcf92d48

SHA256
fdc9b22a9a4babb44c95f67de6e09a8e8a5ab0c805141739fa81c88ef99d84db

SHA512
cfd01a4175b846c1e0e6324c392eb3100c33009ddb2cffa077f49df902277b9e4744b655182bf8c750961ddc1a3174aa830c5477465633a71c3ef7cfd2ab6963

Download Submit
C:\Users\Admin\AppData\Local\Temp\Svhost.exe
Filesize
54KB

MD5
0b0be038a905dfbdd3c957664f7567e7

SHA1
05c0cf8270dbb2015ccecbeba4b5d54ddcf92d48

SHA256
fdc9b22a9a4babb44c95f67de6e09a8e8a5ab0c805141739fa81c88ef99d84db

SHA512
cfd01a4175b846c1e0e6324c392eb3100c33009ddb2cffa077f49df902277b9e4744b655182bf8c750961ddc1a3174aa830c5477465633a71c3ef7cfd2ab6963

Download Submit
memory/804-62-0x0000000000000000-mapping.dmp

Download
memory/1632-57-0x0000000000000000-mapping.dmp

Download
memory/1632-60-0x0000000000050000-0x0000000000064000-memory.dmp

Filesize
80KB

Download
memory/1632-64-0x000000001A976000-0x000000001A995000-memory.dmp

Filesize
124KB

Download
memory/2020-54-0x0000000000CA0000-0x0000000000CB4000-memory.dmp

Filesize
80KB

Download
memory/2020-55-0x000007FEFC341000-0x000007FEFC343000-memory.dmp

Filesize
8KB

Download
memory/2020-56-0x0000000000440000-0x000000000044E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads