purecrypter | 085758594b8004ffcd2c0b7413d67c3fd8024d8915aac54b95db59609c7bd55d

Analysis

max time kernel
70s
max time network
69s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
12-06-2023 11:21

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General

Target

34242398be6a80b536ac21be06f7d2ec.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

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

description	ioc	Process
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\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	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 created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\18.0\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 created	\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\Office\15.0\Outlook\Profiles\Outlook	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
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 queried	\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\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\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\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 queried	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\19.0\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 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 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\19.0\Outlook\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\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	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\17.0\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\20.0\Outlook\Profiles\Outlook	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 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\Office\16.0\Outlook\Profiles\Outlook	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 queried	\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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1236 set thread context of 1844	1236	34242398be6a80b536ac21be06f7d2ec.exe	28

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1844	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1236	34242398be6a80b536ac21be06f7d2ec.exe
Token: SeDebugPrivilege	1844	RegAsm.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 1844	1236	34242398be6a80b536ac21be06f7d2ec.exe	28
PID 1236 wrote to memory of 1844	1236	34242398be6a80b536ac21be06f7d2ec.exe	28
PID 1236 wrote to memory of 1844	1236	34242398be6a80b536ac21be06f7d2ec.exe	28
PID 1236 wrote to memory of 1844	1236	34242398be6a80b536ac21be06f7d2ec.exe	28
PID 1236 wrote to memory of 1844	1236	34242398be6a80b536ac21be06f7d2ec.exe	28
PID 1236 wrote to memory of 1844	1236	34242398be6a80b536ac21be06f7d2ec.exe	28
PID 1236 wrote to memory of 1844	1236	34242398be6a80b536ac21be06f7d2ec.exe	28

outlook_office_path 1 IoCs

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

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\34242398be6a80b536ac21be06f7d2ec.exe
"C:\Users\Admin\AppData\Local\Temp\34242398be6a80b536ac21be06f7d2ec.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1236
- 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:1844

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1236-54-0x0000000000D00000-0x0000000000D08000-memory.dmp

Filesize
32KB

Download
memory/1236-55-0x000000001B4F0000-0x000000001B570000-memory.dmp

Filesize
512KB

Download
memory/1236-56-0x000000001B4F0000-0x000000001B570000-memory.dmp

Filesize
512KB

Download
memory/1236-57-0x000000001EF90000-0x000000001F128000-memory.dmp

Filesize
1.6MB

Download
memory/1236-58-0x000000001AE10000-0x000000001AEC4000-memory.dmp

Filesize
720KB

Download
memory/1236-59-0x000000001AF10000-0x000000001AFA2000-memory.dmp

Filesize
584KB

Download
memory/1844-60-0x0000000140000000-0x00000001400B2000-memory.dmp

Filesize
712KB

Download
memory/1844-61-0x0000000140000000-0x00000001400B2000-memory.dmp

Filesize
712KB

Download
memory/1844-62-0x0000000140000000-0x00000001400B2000-memory.dmp

Filesize
712KB

Download
memory/1844-63-0x000007FFFFFDB000-0x000007FFFFFDC000-memory.dmp

Filesize
4KB

Download
memory/1844-64-0x0000000140000000-0x00000001400B2000-memory.dmp

Filesize
712KB

Download
memory/1844-67-0x000000001B830000-0x000000001B92C000-memory.dmp

Filesize
1008KB

Download
memory/1844-68-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-69-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-71-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-73-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-75-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-79-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-77-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-81-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-83-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-85-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-87-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-89-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-91-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-95-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-93-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-97-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-98-0x000000001B9D0000-0x000000001BA50000-memory.dmp

Filesize
512KB

Download
memory/1844-100-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-102-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-106-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-104-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-108-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-110-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-112-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-114-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-116-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-120-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-118-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-122-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-124-0x000000001B830000-0x000000001B928000-memory.dmp

Filesize
992KB

Download
memory/1844-2383-0x00000000024E0000-0x0000000002552000-memory.dmp

Filesize
456KB

Download
memory/1844-2384-0x000000001B930000-0x000000001B9A0000-memory.dmp

Filesize
448KB

Download
memory/1844-2385-0x000000001B9D0000-0x000000001BA50000-memory.dmp

Filesize
512KB

Download
memory/1844-2386-0x000000001B9D0000-0x000000001BA50000-memory.dmp

Filesize
512KB

Download
memory/1844-2387-0x000000001B9D0000-0x000000001BA50000-memory.dmp

Filesize
512KB

Download
memory/1844-2388-0x0000000000160000-0x00000000001AC000-memory.dmp

Filesize
304KB

Download
memory/1844-2389-0x00000000001C0000-0x00000000001E0000-memory.dmp

Filesize
128KB

Download
memory/1844-2390-0x000000001B9D0000-0x000000001BA50000-memory.dmp

Filesize
512KB

Download
memory/1844-2409-0x000000001BB10000-0x000000001BB8A000-memory.dmp

Filesize
488KB

Download