purecrypter | 085758594b8004ffcd2c0b7413d67c3fd8024d8915aac54b95db59609c7bd55d

General

Target

09946899.exe
Size

19KB
MD5

34242398be6a80b536ac21be06f7d2ec
SHA1

91c0b30ad988678182f37a3f4bfa5cfc4a51857c
SHA256

085758594b8004ffcd2c0b7413d67c3fd8024d8915aac54b95db59609c7bd55d
SHA512

fa597a8ad780f41cf57b2d1c7ab13c1852a654461a790f7e11ff1529b1c03bef9b86f94f760e3aa476e230932be389ee1ed996a8912b28050388336c3b34fcfb
SSDEEP

384:t2keTUi5j7+37gHeMF20vvvvvvvvvvvvvvvvvv6svnJCKA6g3N3mSv:t2keD+3SeMFhvvvvvvvvvvvvvvvvvv6P

Score

10^/10

purecrypter collection downloader loader spyware stealer

Malware Config

Extracted

Family

purecrypter

C2

http://purecry.ydns.eu/pure/Oqbokp.dll

Signatures

PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
loader downloader purecrypter
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 35 IoCs

collection

Email Collection

T1114

Processes:

RegAsm.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	RegAsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	RegAsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	RegAsm.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	RegAsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	RegAsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	RegAsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	RegAsm.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	RegAsm.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	RegAsm.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key queried	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

09946899.exe

description pid process target process

PID 912 set thread context of 676 912 09946899.exe RegAsm.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

RegAsm.exe

pid process

676 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

09946899.exeRegAsm.exe

description pid process

Token: SeDebugPrivilege 912 09946899.exe
Token: SeDebugPrivilege 676 RegAsm.exe

description	pid	process	target process
PID 912 set thread context of 676	912	09946899.exe	RegAsm.exe

pid	process
676	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	912	09946899.exe
Token: SeDebugPrivilege	676	RegAsm.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

09946899.exe

description	pid	process	target process
PID 912 wrote to memory of 676	912	09946899.exe	RegAsm.exe
PID 912 wrote to memory of 676	912	09946899.exe	RegAsm.exe
PID 912 wrote to memory of 676	912	09946899.exe	RegAsm.exe
PID 912 wrote to memory of 676	912	09946899.exe	RegAsm.exe
PID 912 wrote to memory of 676	912	09946899.exe	RegAsm.exe
PID 912 wrote to memory of 676	912	09946899.exe	RegAsm.exe
PID 912 wrote to memory of 676	912	09946899.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\09946899.exe
"C:\Users\Admin\AppData\Local\Temp\09946899.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:912

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:676

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/676-105-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-62-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

Filesize
4KB

Download
memory/676-61-0x0000000140000000-0x00000001400B2000-memory.dmp

Filesize
712KB

Download
memory/676-59-0x0000000140000000-0x00000001400B2000-memory.dmp

Filesize
712KB

Download
memory/676-103-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-66-0x000000001BB10000-0x000000001BC0C000-memory.dmp

Filesize
1008KB

Download
memory/676-67-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-68-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-70-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-72-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-74-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-76-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-78-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-80-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-82-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-84-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-86-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-88-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-90-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-92-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-94-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-96-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-98-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-100-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-102-0x000000001B5C0000-0x000000001B640000-memory.dmp

Filesize
512KB

Download
memory/676-63-0x0000000140000000-0x00000001400B2000-memory.dmp

Filesize
712KB

Download
memory/676-60-0x0000000140000000-0x00000001400B2000-memory.dmp

Filesize
712KB

Download
memory/676-107-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-109-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-111-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-113-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-115-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-117-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-119-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-121-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-123-0x000000001BB10000-0x000000001BC08000-memory.dmp

Filesize
992KB

Download
memory/676-2382-0x0000000000650000-0x00000000006C2000-memory.dmp

Filesize
456KB

Download
memory/676-2383-0x00000000009D0000-0x0000000000A40000-memory.dmp

Filesize
448KB

Download
memory/676-2384-0x000000001B5C0000-0x000000001B640000-memory.dmp

Filesize
512KB

Download
memory/676-2385-0x000000001B5C0000-0x000000001B640000-memory.dmp

Filesize
512KB

Download
memory/676-2386-0x000000001B5C0000-0x000000001B640000-memory.dmp

Filesize
512KB

Download
memory/676-2387-0x0000000000A40000-0x0000000000A8C000-memory.dmp

Filesize
304KB

Download
memory/676-2388-0x0000000000A90000-0x0000000000AB0000-memory.dmp

Filesize
128KB

Download
memory/676-2389-0x000000001B5C0000-0x000000001B640000-memory.dmp

Filesize
512KB

Download
memory/676-2408-0x0000000002320000-0x000000000239A000-memory.dmp

Filesize
488KB

Download
memory/676-2417-0x000000001B5C0000-0x000000001B640000-memory.dmp

Filesize
512KB

Download
memory/676-2418-0x000000001B5C0000-0x000000001B640000-memory.dmp

Filesize
512KB

Download
memory/912-54-0x00000000001F0000-0x00000000001F8000-memory.dmp

Filesize
32KB

Download
memory/912-55-0x000000001B220000-0x000000001B2A0000-memory.dmp

Filesize
512KB

Download
memory/912-56-0x000000001EDD0000-0x000000001EF68000-memory.dmp

Filesize
1.6MB

Download
memory/912-57-0x000000001BFD0000-0x000000001C084000-memory.dmp

Filesize
720KB

Download
memory/912-58-0x000000001B520000-0x000000001B5B2000-memory.dmp

Filesize
584KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads