purecrypter | a1e082c6ac81c7787edc8a751f079c70c7a28b86a6c40bb66f11c066a00bd755

Analysis

max time kernel
140s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
18-09-2023 07:52

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Purchase order PO-0630.pif.exe
Size

25KB
MD5

86c6c06fd51675e02aabb7495b8b246a
SHA1

8172fadead654638516fbfd7c5d6749b8860c19b
SHA256

a1e082c6ac81c7787edc8a751f079c70c7a28b86a6c40bb66f11c066a00bd755
SHA512

5f6bd33af5b9d43cc9ff082d18aee64c20f160de539fa365650c735300e1d5d132d460c86235e476b3dc2311b412b5a3af05de55f701d183b9f8d25bfcad42bb
SSDEEP

384:L0naGdVvqqnKCgFwWR3mnNFawrXebqnlF2xJ8v+jyOc35+c:idVyiKC2wMmjF6u2xagyOq5+c

Score

10^/10

purecrypter collection downloader loader persistence

Malware Config

Extracted

Family

purecrypter

https://qu.ax/lrae.dat

Signatures

PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
loader downloader purecrypter

Accesses Microsoft Outlook profiles 1 TTPs 42 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook	aspnet_compiler.exe
Key queried	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook	aspnet_compiler.exe
Key opened	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key queried	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook	aspnet_compiler.exe
Key queried	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	aspnet_compiler.exe
Key queried	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	aspnet_compiler.exe
Key opened	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key queried	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key queried	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook	aspnet_compiler.exe
Key queried	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook	aspnet_compiler.exe
Key queried	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key opened	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key queried	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key queried	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key opened	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key queried	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	aspnet_compiler.exe
Key queried	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key opened	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key queried	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook	aspnet_compiler.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key queried	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key opened	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe

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-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Wwkypyjwasp = "C:\\Users\\Admin\\AppData\\Roaming\\Wwkypyjwasp.exe"	Purchase order PO-0630.pif.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2132 set thread context of 3880	2132	Purchase order PO-0630.pif.exe	83

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3880	aspnet_compiler.exe
3880	aspnet_compiler.exe
3880	aspnet_compiler.exe
3880	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2132	Purchase order PO-0630.pif.exe
Token: SeDebugPrivilege	3880	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 3880	2132	Purchase order PO-0630.pif.exe	83
PID 2132 wrote to memory of 3880	2132	Purchase order PO-0630.pif.exe	83
PID 2132 wrote to memory of 3880	2132	Purchase order PO-0630.pif.exe	83
PID 2132 wrote to memory of 3880	2132	Purchase order PO-0630.pif.exe	83
PID 2132 wrote to memory of 3880	2132	Purchase order PO-0630.pif.exe	83
PID 2132 wrote to memory of 3880	2132	Purchase order PO-0630.pif.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe

C:\Users\Admin\AppData\Local\Temp\Purchase order PO-0630.pif.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase order PO-0630.pif.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3880

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2132-12-0x00007FFF69140000-0x00007FFF69C01000-memory.dmp

Filesize
10.8MB

Download
memory/2132-1-0x00007FFF69140000-0x00007FFF69C01000-memory.dmp

Filesize
10.8MB

Download
memory/2132-2-0x0000012FFE600000-0x0000012FFE610000-memory.dmp

Filesize
64KB

Download
memory/2132-3-0x0000012FFE850000-0x0000012FFE958000-memory.dmp

Filesize
1.0MB

Download
memory/2132-4-0x0000012FFEA60000-0x0000012FFEB56000-memory.dmp

Filesize
984KB

Download
memory/2132-5-0x0000012FFDC80000-0x0000012FFDCCC000-memory.dmp

Filesize
304KB

Download
memory/2132-0-0x0000012FFBF20000-0x0000012FFBF2A000-memory.dmp

Filesize
40KB

Download
memory/3880-40-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-46-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-11-0x0000023C3B080000-0x0000023C3B090000-memory.dmp

Filesize
64KB

Download
memory/3880-9-0x0000023C538E0000-0x0000023C539E8000-memory.dmp

Filesize
1.0MB

Download
memory/3880-13-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-14-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-16-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-18-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-20-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-22-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-24-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-26-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-28-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-30-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-34-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-38-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-36-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-7-0x0000000140000000-0x00000001400D0000-memory.dmp

Filesize
832KB

Download
memory/3880-32-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-42-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-44-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-10-0x00007FFF69140000-0x00007FFF69C01000-memory.dmp

Filesize
10.8MB

Download
memory/3880-48-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-50-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-52-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-54-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-56-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-58-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-60-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-62-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-64-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-66-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-68-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-70-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-72-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-74-0x0000023C538E0000-0x0000023C539E4000-memory.dmp

Filesize
1.0MB

Download
memory/3880-884-0x00007FFF69140000-0x00007FFF69C01000-memory.dmp

Filesize
10.8MB

Download
memory/3880-970-0x0000023C3B080000-0x0000023C3B090000-memory.dmp

Filesize
64KB

Download
memory/3880-2209-0x0000023C53A60000-0x0000023C53AFE000-memory.dmp

Filesize
632KB

Download
memory/3880-2210-0x0000023C3B060000-0x0000023C3B086000-memory.dmp

Filesize
152KB

Download
memory/3880-2229-0x0000023C55000000-0x0000023C5507A000-memory.dmp

Filesize
488KB

Download
memory/3880-2257-0x00007FFF69140000-0x00007FFF69C01000-memory.dmp

Filesize
10.8MB

Download