njrat | 9f651ae6ea538238748614a7f86fe2b0f76e881d6c38da581f284e4b6f79b0ca

Analysis

max time kernel
166s
max time network
171s
platform
windows10_x64
resource
win10-en-20211208
submitted
28-01-2022 13:34

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General

Target

01/2015.5.27/10.exe
Size

22KB
MD5

659844803074f32b274708507df3118c
SHA1

104dbcade45c3a01b499bd7ecb73852a5adf6146
SHA256

99c065515cad2265f7f826e355c22f8c677682da498d2ae74b2cb96ee27c5ad9
SHA512

008d57f5846c85e6ef8ad4a35a5a6838c925dacb9c829fb420c1896581490afcfe27edbfe6e69fa7f32d5fe1eeb06d3f2f8f28eb2cda930c4ab32bf184877986

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

sooosoo45.publicvm.com:1111

Mutex

2c75cccb239930e4a48b4948a4a9098c

Attributes

reg_key
2c75cccb239930e4a48b4948a4a9098c
splitter
|'|'|

Signatures

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

Processes:

server.exe

pid process

3340 server.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
3340	server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows\CurrentVersion\Run\2c75cccb239930e4a48b4948a4a9098c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\2c75cccb239930e4a48b4948a4a9098c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\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 use of AdjustPrivilegeToken 31 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	3340	server.exe
Token: 33	3340	server.exe
Token: SeIncBasePriorityPrivilege	3340	server.exe
Token: 33	3340	server.exe
Token: SeIncBasePriorityPrivilege	3340	server.exe
Token: 33	3340	server.exe
Token: SeIncBasePriorityPrivilege	3340	server.exe
Token: 33	3340	server.exe
Token: SeIncBasePriorityPrivilege	3340	server.exe
Token: 33	3340	server.exe
Token: SeIncBasePriorityPrivilege	3340	server.exe
Token: 33	3340	server.exe
Token: SeIncBasePriorityPrivilege	3340	server.exe
Token: 33	3340	server.exe
Token: SeIncBasePriorityPrivilege	3340	server.exe
Token: 33	3340	server.exe
Token: SeIncBasePriorityPrivilege	3340	server.exe
Token: 33	3340	server.exe
Token: SeIncBasePriorityPrivilege	3340	server.exe
Token: 33	3340	server.exe
Token: SeIncBasePriorityPrivilege	3340	server.exe
Token: 33	3340	server.exe
Token: SeIncBasePriorityPrivilege	3340	server.exe
Token: 33	3340	server.exe
Token: SeIncBasePriorityPrivilege	3340	server.exe
Token: 33	3340	server.exe
Token: SeIncBasePriorityPrivilege	3340	server.exe
Token: 33	3340	server.exe
Token: SeIncBasePriorityPrivilege	3340	server.exe
Token: 33	3340	server.exe
Token: SeIncBasePriorityPrivilege	3340	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

10.exeserver.exe

description	pid	process	target process
PID 2796 wrote to memory of 3340	2796	10.exe	server.exe
PID 2796 wrote to memory of 3340	2796	10.exe	server.exe
PID 2796 wrote to memory of 3340	2796	10.exe	server.exe
PID 3340 wrote to memory of 4064	3340	server.exe	netsh.exe
PID 3340 wrote to memory of 4064	3340	server.exe	netsh.exe
PID 3340 wrote to memory of 4064	3340	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\01\2015.5.27\10.exe
"C:\Users\Admin\AppData\Local\Temp\01\2015.5.27\10.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2796

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3340

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
3⤵
PID:4064

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe
MD5
659844803074f32b274708507df3118c

SHA1
104dbcade45c3a01b499bd7ecb73852a5adf6146

SHA256
99c065515cad2265f7f826e355c22f8c677682da498d2ae74b2cb96ee27c5ad9

SHA512
008d57f5846c85e6ef8ad4a35a5a6838c925dacb9c829fb420c1896581490afcfe27edbfe6e69fa7f32d5fe1eeb06d3f2f8f28eb2cda930c4ab32bf184877986

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe
MD5
659844803074f32b274708507df3118c

SHA1
104dbcade45c3a01b499bd7ecb73852a5adf6146

SHA256
99c065515cad2265f7f826e355c22f8c677682da498d2ae74b2cb96ee27c5ad9

SHA512
008d57f5846c85e6ef8ad4a35a5a6838c925dacb9c829fb420c1896581490afcfe27edbfe6e69fa7f32d5fe1eeb06d3f2f8f28eb2cda930c4ab32bf184877986

Download Submit
memory/2796-115-0x0000000002BF0000-0x0000000002BF1000-memory.dmp

Filesize
4KB

Download
memory/3340-118-0x0000000002EB0000-0x0000000002EB1000-memory.dmp

Filesize
4KB

Download