njrat | 3317fd13e0377c08ba274fdeca8413e163380c26182826851806799e5a140403

General

Target

3317fd13e0377c08ba274fdeca8413e163380c26182826851806799e5a140403.exe
Size

109KB
MD5

192e78e7db7e447729433b4f310ea6b6
SHA1

ed38943a6aa889c956b791383229d04fcd13e9d2
SHA256

3317fd13e0377c08ba274fdeca8413e163380c26182826851806799e5a140403
SHA512

6ae3695b00ecfbc78045f913b0a7a2453013e5aff981bb1074427ce0640a271374379369424c84486f112d47a41c6137b89b6bdbeae59281ccde24d5cb5aacda
SSDEEP

3072:yLha0r+jOVlXZ8fjnsCAP4uyPoitxwqpFr:4i7fVA4D1t

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

Processes:

skypa.exe

pid process

4156 skypa.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

2288 netsh.exe

pid	process
4156	skypa.exe

pid	process
2288	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

Processes:

3317fd13e0377c08ba274fdeca8413e163380c26182826851806799e5a140403.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	3317fd13e0377c08ba274fdeca8413e163380c26182826851806799e5a140403.exe

Drops startup file 2 IoCs

Processes:

skypa.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\820f72c42752a1b7417419dccb38a133.exe	skypa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\820f72c42752a1b7417419dccb38a133.exe	skypa.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

skypa.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\820f72c42752a1b7417419dccb38a133 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\skypa.exe\" .."	skypa.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\820f72c42752a1b7417419dccb38a133 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\skypa.exe\" .."	skypa.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

Processes:

skypa.exe

description	pid	process
Token: SeDebugPrivilege	4156	skypa.exe
Token: 33	4156	skypa.exe
Token: SeIncBasePriorityPrivilege	4156	skypa.exe
Token: 33	4156	skypa.exe
Token: SeIncBasePriorityPrivilege	4156	skypa.exe
Token: 33	4156	skypa.exe
Token: SeIncBasePriorityPrivilege	4156	skypa.exe
Token: 33	4156	skypa.exe
Token: SeIncBasePriorityPrivilege	4156	skypa.exe
Token: 33	4156	skypa.exe
Token: SeIncBasePriorityPrivilege	4156	skypa.exe
Token: 33	4156	skypa.exe
Token: SeIncBasePriorityPrivilege	4156	skypa.exe
Token: 33	4156	skypa.exe
Token: SeIncBasePriorityPrivilege	4156	skypa.exe
Token: 33	4156	skypa.exe
Token: SeIncBasePriorityPrivilege	4156	skypa.exe
Token: 33	4156	skypa.exe
Token: SeIncBasePriorityPrivilege	4156	skypa.exe
Token: 33	4156	skypa.exe
Token: SeIncBasePriorityPrivilege	4156	skypa.exe
Token: 33	4156	skypa.exe
Token: SeIncBasePriorityPrivilege	4156	skypa.exe
Token: 33	4156	skypa.exe
Token: SeIncBasePriorityPrivilege	4156	skypa.exe
Token: 33	4156	skypa.exe
Token: SeIncBasePriorityPrivilege	4156	skypa.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

3317fd13e0377c08ba274fdeca8413e163380c26182826851806799e5a140403.exeskypa.exe

description	pid	process	target process
PID 5036 wrote to memory of 4156	5036	3317fd13e0377c08ba274fdeca8413e163380c26182826851806799e5a140403.exe	skypa.exe
PID 5036 wrote to memory of 4156	5036	3317fd13e0377c08ba274fdeca8413e163380c26182826851806799e5a140403.exe	skypa.exe
PID 4156 wrote to memory of 2288	4156	skypa.exe	netsh.exe
PID 4156 wrote to memory of 2288	4156	skypa.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\3317fd13e0377c08ba274fdeca8413e163380c26182826851806799e5a140403.exe
"C:\Users\Admin\AppData\Local\Temp\3317fd13e0377c08ba274fdeca8413e163380c26182826851806799e5a140403.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5036

C:\Users\Admin\AppData\Local\Temp\skypa.exe
"C:\Users\Admin\AppData\Local\Temp\skypa.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4156

C:\Windows\SYSTEM32\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\skypa.exe" "skypa.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:2288

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

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Downloads

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

Filesize
109KB

MD5
192e78e7db7e447729433b4f310ea6b6

SHA1
ed38943a6aa889c956b791383229d04fcd13e9d2

SHA256
3317fd13e0377c08ba274fdeca8413e163380c26182826851806799e5a140403

SHA512
6ae3695b00ecfbc78045f913b0a7a2453013e5aff981bb1074427ce0640a271374379369424c84486f112d47a41c6137b89b6bdbeae59281ccde24d5cb5aacda

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

Filesize
109KB

MD5
192e78e7db7e447729433b4f310ea6b6

SHA1
ed38943a6aa889c956b791383229d04fcd13e9d2

SHA256
3317fd13e0377c08ba274fdeca8413e163380c26182826851806799e5a140403

SHA512
6ae3695b00ecfbc78045f913b0a7a2453013e5aff981bb1074427ce0640a271374379369424c84486f112d47a41c6137b89b6bdbeae59281ccde24d5cb5aacda

Download Submit
memory/2288-137-0x0000000000000000-mapping.dmp

Download
memory/4156-133-0x0000000000000000-mapping.dmp

Download
memory/4156-136-0x00007FF8CA490000-0x00007FF8CAEC6000-memory.dmp

Filesize
10.2MB

Download
memory/5036-132-0x00007FF8CA490000-0x00007FF8CAEC6000-memory.dmp

Filesize
10.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads