e70597952789aaa8793596997eee999046c3dc705e52b9935b7f643f6c8038ef

General

Target

winpnps.exe
Size

1.3MB
MD5

8c99d9e3eb8e1510d45fdf2b3614938d
SHA1

bb251b639e30e030365a76037b6b078498d3e8f8
SHA256

5319983d18df4e4d4d619e277833fb53f8581beb5bff0c7345c87390a3a96cbd
SHA512

e80ecfb48eb6a2ec50419e6a404ebd856b593b09fd5dac7098ca218dc7fdc85fae040ca76a4f8dd9911a525e58e03edf62267d41ddf9a82d4a30c549d2125afd
SSDEEP

24576:MfhUapfoyj35K+r6MmgJcgoCS1CmmwFniM9:MfCK3grMJHoC49

Score

6^/10

adware discovery persistence stealer

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\winpnpv3 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\winpnps.exe"	winpnps.exe

Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{6F2BD1DC-B030-4656-8847-E75037CA9C13}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{6F2BD1DC-B030-4656-8847-E75037CA9C13}\NoExplorer = "1"	regsvr32.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winpnps.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\winpnp.P\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\winpnp.P\Clsid\ = "{6F2BD1DC-B030-4656-8847-E75037CA9C13}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6F2BD1DC-B030-4656-8847-E75037CA9C13}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\winpnp.P	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\winpnp.P\ = "O"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6F2BD1DC-B030-4656-8847-E75037CA9C13}\ProgID\ = "winpnp.P"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6F2BD1DC-B030-4656-8847-E75037CA9C13}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6F2BD1DC-B030-4656-8847-E75037CA9C13}\ = "O"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6F2BD1DC-B030-4656-8847-E75037CA9C13}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6F2BD1DC-B030-4656-8847-E75037CA9C13}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\winpnp.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6F2BD1DC-B030-4656-8847-E75037CA9C13}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3024 wrote to memory of 2448	3024	winpnps.exe	30
PID 3024 wrote to memory of 2448	3024	winpnps.exe	30
PID 3024 wrote to memory of 2448	3024	winpnps.exe	30
PID 3024 wrote to memory of 2448	3024	winpnps.exe	30
PID 3024 wrote to memory of 2448	3024	winpnps.exe	30
PID 3024 wrote to memory of 2448	3024	winpnps.exe	30
PID 3024 wrote to memory of 2448	3024	winpnps.exe	30

C:\Users\Admin\AppData\Local\Temp\winpnps.exe
"C:\Users\Admin\AppData\Local\Temp\winpnps.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Windows\SysWOW64\regsvr32.exe
  "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\winpnp.dll"
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2448

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Browser Extensions

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2448-1-0x00000000021A0000-0x0000000002285000-memory.dmp

Filesize
916KB

Download
memory/3024-8-0x0000000000400000-0x0000000000549000-memory.dmp

Filesize
1.3MB

Download
memory/3024-11-0x0000000000400000-0x0000000000549000-memory.dmp

Filesize
1.3MB

Download
memory/3024-3-0x0000000000400000-0x0000000000549000-memory.dmp

Filesize
1.3MB

Download
memory/3024-4-0x0000000000400000-0x0000000000549000-memory.dmp

Filesize
1.3MB

Download
memory/3024-5-0x0000000000400000-0x0000000000549000-memory.dmp

Filesize
1.3MB

Download
memory/3024-6-0x0000000000400000-0x0000000000549000-memory.dmp

Filesize
1.3MB

Download
memory/3024-2-0x0000000000400000-0x0000000000549000-memory.dmp

Filesize
1.3MB

Download
memory/3024-9-0x0000000000400000-0x0000000000549000-memory.dmp

Filesize
1.3MB

Download
memory/3024-7-0x0000000000400000-0x0000000000549000-memory.dmp

Filesize
1.3MB

Download
memory/3024-10-0x0000000000400000-0x0000000000549000-memory.dmp

Filesize
1.3MB

Download
memory/3024-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/3024-12-0x0000000000400000-0x0000000000549000-memory.dmp

Filesize
1.3MB

Download
memory/3024-13-0x0000000000400000-0x0000000000549000-memory.dmp

Filesize
1.3MB

Download
memory/3024-14-0x0000000000400000-0x0000000000549000-memory.dmp

Filesize
1.3MB

Download
memory/3024-15-0x0000000000400000-0x0000000000549000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads