njrat | 14aae3a98f654624043093b20de1e93253b480c004e759f25d7eefed326c2588

General

Target

14AAE3A98F654624043093B20DE1E93253B480C004E75.exe
Size

37KB
MD5

4c05aa148436b9fca9e90e2fc959dae0
SHA1

2c139aeb49a6b10285944c400e15060ad6c4b35b
SHA256

14aae3a98f654624043093b20de1e93253b480c004e759f25d7eefed326c2588
SHA512

0641b3eb8d1f5a844264a4f54263b82ef59fdc5ecc2191ca3ee47588cbe7b05022e248f12ca6379beffd9b6ab755939465c8765448a3175c0cbf5fab77c0589e
SSDEEP

384:Yh2KMizdNjnBhFbJ8ycPlXP/3w6ExirAF+rMRTyN/0L+EcoinblneHQM3epzXPN:W2gNlLJfcPlX31EYrM+rMRa8NuxGt

Score

10^/10

njrat pescaatt evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

PescaATT

C2

crlslost.ddns.net:9500

Mutex

11d533935508126b31358f5920513314

Attributes

reg_key
11d533935508126b31358f5920513314
splitter
|'|'|

Signatures

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

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
2116	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-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	14AAE3A98F654624043093B20DE1E93253B480C004E75.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\11d533935508126b31358f5920513314.exe	svhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\11d533935508126b31358f5920513314.exe	svhost.exe

Executes dropped EXE 1 IoCs

pid	Process
4568	svhost.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-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\11d533935508126b31358f5920513314 = "\"C:\\Windows\\svhost.exe\" .."	svhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\11d533935508126b31358f5920513314 = "\"C:\\Windows\\svhost.exe\" .."	svhost.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svhost.exe	14AAE3A98F654624043093B20DE1E93253B480C004E75.exe
File opened for modification	C:\Windows\svhost.exe	svhost.exe
File created	C:\Windows\svhost.exe	14AAE3A98F654624043093B20DE1E93253B480C004E75.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeDebugPrivilege	4568	svhost.exe
Token: 33	4568	svhost.exe
Token: SeIncBasePriorityPrivilege	4568	svhost.exe
Token: 33	4568	svhost.exe
Token: SeIncBasePriorityPrivilege	4568	svhost.exe
Token: 33	4568	svhost.exe
Token: SeIncBasePriorityPrivilege	4568	svhost.exe
Token: 33	4568	svhost.exe
Token: SeIncBasePriorityPrivilege	4568	svhost.exe
Token: 33	4568	svhost.exe
Token: SeIncBasePriorityPrivilege	4568	svhost.exe
Token: 33	4568	svhost.exe
Token: SeIncBasePriorityPrivilege	4568	svhost.exe
Token: 33	4568	svhost.exe
Token: SeIncBasePriorityPrivilege	4568	svhost.exe
Token: 33	4568	svhost.exe
Token: SeIncBasePriorityPrivilege	4568	svhost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4108 wrote to memory of 4568	4108	14AAE3A98F654624043093B20DE1E93253B480C004E75.exe	84
PID 4108 wrote to memory of 4568	4108	14AAE3A98F654624043093B20DE1E93253B480C004E75.exe	84
PID 4108 wrote to memory of 4568	4108	14AAE3A98F654624043093B20DE1E93253B480C004E75.exe	84
PID 4568 wrote to memory of 2116	4568	svhost.exe	89
PID 4568 wrote to memory of 2116	4568	svhost.exe	89
PID 4568 wrote to memory of 2116	4568	svhost.exe	89

C:\Users\Admin\AppData\Local\Temp\14AAE3A98F654624043093B20DE1E93253B480C004E75.exe
"C:\Users\Admin\AppData\Local\Temp\14AAE3A98F654624043093B20DE1E93253B480C004E75.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4108
- C:\Windows\svhost.exe
  "C:\Windows\svhost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4568
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\svhost.exe" "svhost.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:2116

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:\Windows\svhost.exe

Filesize
37KB

MD5
4c05aa148436b9fca9e90e2fc959dae0

SHA1
2c139aeb49a6b10285944c400e15060ad6c4b35b

SHA256
14aae3a98f654624043093b20de1e93253b480c004e759f25d7eefed326c2588

SHA512
0641b3eb8d1f5a844264a4f54263b82ef59fdc5ecc2191ca3ee47588cbe7b05022e248f12ca6379beffd9b6ab755939465c8765448a3175c0cbf5fab77c0589e

Download Submit
C:\Windows\svhost.exe

Filesize
37KB

MD5
4c05aa148436b9fca9e90e2fc959dae0

SHA1
2c139aeb49a6b10285944c400e15060ad6c4b35b

SHA256
14aae3a98f654624043093b20de1e93253b480c004e759f25d7eefed326c2588

SHA512
0641b3eb8d1f5a844264a4f54263b82ef59fdc5ecc2191ca3ee47588cbe7b05022e248f12ca6379beffd9b6ab755939465c8765448a3175c0cbf5fab77c0589e

Download Submit
C:\Windows\svhost.exe

Filesize
37KB

MD5
4c05aa148436b9fca9e90e2fc959dae0

SHA1
2c139aeb49a6b10285944c400e15060ad6c4b35b

SHA256
14aae3a98f654624043093b20de1e93253b480c004e759f25d7eefed326c2588

SHA512
0641b3eb8d1f5a844264a4f54263b82ef59fdc5ecc2191ca3ee47588cbe7b05022e248f12ca6379beffd9b6ab755939465c8765448a3175c0cbf5fab77c0589e

Download Submit
memory/4108-133-0x0000000001200000-0x0000000001210000-memory.dmp

Filesize
64KB

Download
memory/4568-143-0x0000000001250000-0x0000000001260000-memory.dmp

Filesize
64KB

Download

Analysis

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