njrat | 07eeca89a28dfb3215f5902ec1bb615f3c50e14f12ac2f1dedf399bfc46812fa

General

Target

07eeca89a28dfb3215f5902ec1bb615f3c50e14f12ac2f1dedf399bfc46812fa.exe
Size

151KB
MD5

699a4124f54535d6846e4b68b1396520
SHA1

f4da9f0dea2b03485777fa99e72046e8e7e745a3
SHA256

07eeca89a28dfb3215f5902ec1bb615f3c50e14f12ac2f1dedf399bfc46812fa
SHA512

e1755f9b6ce195f594c6a549e25df92aa11303b12eea2882420d80d99b7e4f8959eea062e5977c982e12e066ea72f3fb6eb3ab76a31bdddce90a4ad1e9f7e267
SSDEEP

3072:Y4/Hmc5MCcHGpVSkt+DqE7VIp/afUcCXKiDOHsacb3pjGmFYflwKb8c:YcNL5+CxacuMacrpjGmFYNwS

Score

10^/10

njrat evasion persistence trojan

Malware Config

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Executes dropped EXE 1 IoCs

pid	Process
4112	test.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
2716	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	07eeca89a28dfb3215f5902ec1bb615f3c50e14f12ac2f1dedf399bfc46812fa.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5ef1dd4d005ba321ffd356a3a05a85b2.exe	test.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5ef1dd4d005ba321ffd356a3a05a85b2.exe	test.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5ef1dd4d005ba321ffd356a3a05a85b2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\test.exe\" .."	test.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5ef1dd4d005ba321ffd356a3a05a85b2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\test.exe\" .."	test.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 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	4112	test.exe
Token: 33	4112	test.exe
Token: SeIncBasePriorityPrivilege	4112	test.exe
Token: 33	4112	test.exe
Token: SeIncBasePriorityPrivilege	4112	test.exe
Token: 33	4112	test.exe
Token: SeIncBasePriorityPrivilege	4112	test.exe
Token: 33	4112	test.exe
Token: SeIncBasePriorityPrivilege	4112	test.exe
Token: 33	4112	test.exe
Token: SeIncBasePriorityPrivilege	4112	test.exe
Token: 33	4112	test.exe
Token: SeIncBasePriorityPrivilege	4112	test.exe
Token: 33	4112	test.exe
Token: SeIncBasePriorityPrivilege	4112	test.exe
Token: 33	4112	test.exe
Token: SeIncBasePriorityPrivilege	4112	test.exe
Token: 33	4112	test.exe
Token: SeIncBasePriorityPrivilege	4112	test.exe
Token: 33	4112	test.exe
Token: SeIncBasePriorityPrivilege	4112	test.exe
Token: 33	4112	test.exe
Token: SeIncBasePriorityPrivilege	4112	test.exe
Token: 33	4112	test.exe
Token: SeIncBasePriorityPrivilege	4112	test.exe
Token: 33	4112	test.exe
Token: SeIncBasePriorityPrivilege	4112	test.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 4112	2444	07eeca89a28dfb3215f5902ec1bb615f3c50e14f12ac2f1dedf399bfc46812fa.exe	82
PID 2444 wrote to memory of 4112	2444	07eeca89a28dfb3215f5902ec1bb615f3c50e14f12ac2f1dedf399bfc46812fa.exe	82
PID 4112 wrote to memory of 2716	4112	test.exe	83
PID 4112 wrote to memory of 2716	4112	test.exe	83

C:\Users\Admin\AppData\Local\Temp\07eeca89a28dfb3215f5902ec1bb615f3c50e14f12ac2f1dedf399bfc46812fa.exe
"C:\Users\Admin\AppData\Local\Temp\07eeca89a28dfb3215f5902ec1bb615f3c50e14f12ac2f1dedf399bfc46812fa.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Users\Admin\AppData\Local\Temp\test.exe
  "C:\Users\Admin\AppData\Local\Temp\test.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4112
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\test.exe" "test.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:2716

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
151KB

MD5
699a4124f54535d6846e4b68b1396520

SHA1
f4da9f0dea2b03485777fa99e72046e8e7e745a3

SHA256
07eeca89a28dfb3215f5902ec1bb615f3c50e14f12ac2f1dedf399bfc46812fa

SHA512
e1755f9b6ce195f594c6a549e25df92aa11303b12eea2882420d80d99b7e4f8959eea062e5977c982e12e066ea72f3fb6eb3ab76a31bdddce90a4ad1e9f7e267

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

Filesize
151KB

MD5
699a4124f54535d6846e4b68b1396520

SHA1
f4da9f0dea2b03485777fa99e72046e8e7e745a3

SHA256
07eeca89a28dfb3215f5902ec1bb615f3c50e14f12ac2f1dedf399bfc46812fa

SHA512
e1755f9b6ce195f594c6a549e25df92aa11303b12eea2882420d80d99b7e4f8959eea062e5977c982e12e066ea72f3fb6eb3ab76a31bdddce90a4ad1e9f7e267

Download Submit
memory/2444-132-0x0000000000530000-0x000000000055C000-memory.dmp

Filesize
176KB

Download
memory/2444-133-0x00007FF963CA0000-0x00007FF964761000-memory.dmp

Filesize
10.8MB

Download
memory/2444-137-0x00007FF963CA0000-0x00007FF964761000-memory.dmp

Filesize
10.8MB

Download
memory/4112-138-0x00007FF963CA0000-0x00007FF964761000-memory.dmp

Filesize
10.8MB

Download
memory/4112-139-0x00007FF963CA0000-0x00007FF964761000-memory.dmp

Filesize
10.8MB

Download

Analysis

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