njrat | 8774a2f15efbfc88e6a7c1831074909d1fbddbe895f2d900b111ccce16178c03

General

Target

tmp/42b65022-e76e-41d7-94f1-6dd7b719243c_server.exe
Size

22KB
MD5

c53d13780336aefe9b4318b19eba09a0
SHA1

90682596f5da8e19c88f77d74a569d8da8521cfa
SHA256

8774a2f15efbfc88e6a7c1831074909d1fbddbe895f2d900b111ccce16178c03
SHA512

9a7249c1d5e33add5b0d84dee20e5641789d202f774e77e3a902271550e88f35f2a7d0f70a151a46908d87d91e19641296e6e4ec94d5ba52aec65ef73a3c4c83

Score

10^/10

njrat test evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

test

C2

127.0.0.1:1443

Mutex

74cc423dce7f45f8f93124254b62aa00

Attributes

reg_key
74cc423dce7f45f8f93124254b62aa00
splitter
|'|'|

Signatures

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

Processes:

worm.exe

pid process

1288 worm.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
1288	worm.exe

Drops startup file 2 IoCs

Processes:

worm.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\74cc423dce7f45f8f93124254b62aa00.exe	worm.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\74cc423dce7f45f8f93124254b62aa00.exe	worm.exe

Loads dropped DLL 2 IoCs

Processes:

42b65022-e76e-41d7-94f1-6dd7b719243c_server.exe

pid process

1544 42b65022-e76e-41d7-94f1-6dd7b719243c_server.exe
1544 42b65022-e76e-41d7-94f1-6dd7b719243c_server.exe

pid	process
1544	42b65022-e76e-41d7-94f1-6dd7b719243c_server.exe
1544	42b65022-e76e-41d7-94f1-6dd7b719243c_server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

worm.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\74cc423dce7f45f8f93124254b62aa00 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\worm.exe\" .."	worm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\74cc423dce7f45f8f93124254b62aa00 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\worm.exe\" .."	worm.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 33 IoCs

Processes:

worm.exe

description	pid	process
Token: SeDebugPrivilege	1288	worm.exe
Token: 33	1288	worm.exe
Token: SeIncBasePriorityPrivilege	1288	worm.exe
Token: 33	1288	worm.exe
Token: SeIncBasePriorityPrivilege	1288	worm.exe
Token: 33	1288	worm.exe
Token: SeIncBasePriorityPrivilege	1288	worm.exe
Token: 33	1288	worm.exe
Token: SeIncBasePriorityPrivilege	1288	worm.exe
Token: 33	1288	worm.exe
Token: SeIncBasePriorityPrivilege	1288	worm.exe
Token: 33	1288	worm.exe
Token: SeIncBasePriorityPrivilege	1288	worm.exe
Token: 33	1288	worm.exe
Token: SeIncBasePriorityPrivilege	1288	worm.exe
Token: 33	1288	worm.exe
Token: SeIncBasePriorityPrivilege	1288	worm.exe
Token: 33	1288	worm.exe
Token: SeIncBasePriorityPrivilege	1288	worm.exe
Token: 33	1288	worm.exe
Token: SeIncBasePriorityPrivilege	1288	worm.exe
Token: 33	1288	worm.exe
Token: SeIncBasePriorityPrivilege	1288	worm.exe
Token: 33	1288	worm.exe
Token: SeIncBasePriorityPrivilege	1288	worm.exe
Token: 33	1288	worm.exe
Token: SeIncBasePriorityPrivilege	1288	worm.exe
Token: 33	1288	worm.exe
Token: SeIncBasePriorityPrivilege	1288	worm.exe
Token: 33	1288	worm.exe
Token: SeIncBasePriorityPrivilege	1288	worm.exe
Token: 33	1288	worm.exe
Token: SeIncBasePriorityPrivilege	1288	worm.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

42b65022-e76e-41d7-94f1-6dd7b719243c_server.exeworm.exe

description	pid	process	target process
PID 1544 wrote to memory of 1288	1544	42b65022-e76e-41d7-94f1-6dd7b719243c_server.exe	worm.exe
PID 1544 wrote to memory of 1288	1544	42b65022-e76e-41d7-94f1-6dd7b719243c_server.exe	worm.exe
PID 1544 wrote to memory of 1288	1544	42b65022-e76e-41d7-94f1-6dd7b719243c_server.exe	worm.exe
PID 1544 wrote to memory of 1288	1544	42b65022-e76e-41d7-94f1-6dd7b719243c_server.exe	worm.exe
PID 1288 wrote to memory of 280	1288	worm.exe	netsh.exe
PID 1288 wrote to memory of 280	1288	worm.exe	netsh.exe
PID 1288 wrote to memory of 280	1288	worm.exe	netsh.exe
PID 1288 wrote to memory of 280	1288	worm.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\tmp\42b65022-e76e-41d7-94f1-6dd7b719243c_server.exe
"C:\Users\Admin\AppData\Local\Temp\tmp\42b65022-e76e-41d7-94f1-6dd7b719243c_server.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1544

C:\Users\Admin\AppData\Local\Temp\worm.exe
"C:\Users\Admin\AppData\Local\Temp\worm.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1288

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\worm.exe" "worm.exe" ENABLE
3⤵
PID:280

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\worm.exe
MD5
c53d13780336aefe9b4318b19eba09a0

SHA1
90682596f5da8e19c88f77d74a569d8da8521cfa

SHA256
8774a2f15efbfc88e6a7c1831074909d1fbddbe895f2d900b111ccce16178c03

SHA512
9a7249c1d5e33add5b0d84dee20e5641789d202f774e77e3a902271550e88f35f2a7d0f70a151a46908d87d91e19641296e6e4ec94d5ba52aec65ef73a3c4c83

Download Submit
C:\Users\Admin\AppData\Local\Temp\worm.exe
MD5
c53d13780336aefe9b4318b19eba09a0

SHA1
90682596f5da8e19c88f77d74a569d8da8521cfa

SHA256
8774a2f15efbfc88e6a7c1831074909d1fbddbe895f2d900b111ccce16178c03

SHA512
9a7249c1d5e33add5b0d84dee20e5641789d202f774e77e3a902271550e88f35f2a7d0f70a151a46908d87d91e19641296e6e4ec94d5ba52aec65ef73a3c4c83

Download Submit
\Users\Admin\AppData\Local\Temp\worm.exe
MD5
c53d13780336aefe9b4318b19eba09a0

SHA1
90682596f5da8e19c88f77d74a569d8da8521cfa

SHA256
8774a2f15efbfc88e6a7c1831074909d1fbddbe895f2d900b111ccce16178c03

SHA512
9a7249c1d5e33add5b0d84dee20e5641789d202f774e77e3a902271550e88f35f2a7d0f70a151a46908d87d91e19641296e6e4ec94d5ba52aec65ef73a3c4c83

Download Submit
\Users\Admin\AppData\Local\Temp\worm.exe
MD5
c53d13780336aefe9b4318b19eba09a0

SHA1
90682596f5da8e19c88f77d74a569d8da8521cfa

SHA256
8774a2f15efbfc88e6a7c1831074909d1fbddbe895f2d900b111ccce16178c03

SHA512
9a7249c1d5e33add5b0d84dee20e5641789d202f774e77e3a902271550e88f35f2a7d0f70a151a46908d87d91e19641296e6e4ec94d5ba52aec65ef73a3c4c83

Download Submit
memory/280-63-0x0000000000000000-mapping.dmp

Download
memory/1288-58-0x0000000000000000-mapping.dmp

Download
memory/1288-62-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/1544-54-0x0000000075B51000-0x0000000075B53000-memory.dmp

Filesize
8KB

Download
memory/1544-55-0x0000000000C80000-0x0000000000C81000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads