purecrypter | 99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
14-06-2024 09:27

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General

Target

Ejpba.exe
Size

6KB
MD5

1c56623199e1959f271a191d603360bf
SHA1

9a7429e8b08ef843739c7739e8a314006c20b2af
SHA256

99fce21d1aa81f7f3b8fae707aabd43b5b51b9da0fbb7258b68bd5fe9d62073a
SHA512

87c50fb8f13d5b0ce5d83d99e64a7728e466e33118faea4c52136dd8a2f70d5f4217c90f4cc3c415628b9f96b7ed114cedb2455e3edc1cc39e67a36b79fceee4
SSDEEP

96:QhN/c/kk91xUL9678Ms0wFFpBV4Xh4yvn1j4r/8iT85fTc70zNt:QhN/cx1o96hwFH4R4viRM+

Score

10^/10

purecrypter collection downloader loader persistence spyware stealer

Malware Config

Extracted

Family

purecrypter

http://103.195.103.33/nf/Qtdxulkcon.wav

Signatures

PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
loader downloader purecrypter
Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 35 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	Ejpba.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	Ejpba.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	Ejpba.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Ejpba.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Ejpba.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	Ejpba.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Ejpba.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	Ejpba.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	Ejpba.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Ejpba.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Ejpba.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	Ejpba.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	Ejpba.exe
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Ejpba.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-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\Gljzdykchd = "C:\\Users\\Admin\\AppData\\Roaming\\Gljzdykchd.exe"	Ejpba.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2420 set thread context of 2724	2420	Ejpba.exe	28

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2724	Ejpba.exe
2724	Ejpba.exe
2724	Ejpba.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2420	Ejpba.exe
Token: SeDebugPrivilege	2420	Ejpba.exe
Token: SeDebugPrivilege	2724	Ejpba.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2724	2420	Ejpba.exe	28
PID 2420 wrote to memory of 2724	2420	Ejpba.exe	28
PID 2420 wrote to memory of 2724	2420	Ejpba.exe	28
PID 2420 wrote to memory of 2724	2420	Ejpba.exe	28
PID 2420 wrote to memory of 2724	2420	Ejpba.exe	28
PID 2420 wrote to memory of 2724	2420	Ejpba.exe	28
PID 2420 wrote to memory of 2724	2420	Ejpba.exe	28
PID 2420 wrote to memory of 2724	2420	Ejpba.exe	28
PID 2420 wrote to memory of 2724	2420	Ejpba.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Ejpba.exe

C:\Users\Admin\AppData\Local\Temp\Ejpba.exe
"C:\Users\Admin\AppData\Local\Temp\Ejpba.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Users\Admin\AppData\Local\Temp\Ejpba.exe
  "C:\Users\Admin\AppData\Local\Temp\Ejpba.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2724

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Jnxoeimfmlh.tmpdb

Filesize
148KB

MD5
90a1d4b55edf36fa8b4cc6974ed7d4c4

SHA1
aba1b8d0e05421e7df5982899f626211c3c4b5c1

SHA256
7cf3e9e8619904e72ea6608cc43e9b6c9f8aa2af02476f60c2b3daf33075981c

SHA512
ea0838be754e1258c230111900c5937d2b0788f90bbf7c5f82b2ceda7868e50afb86c301f313267eaa912778da45755560b5434885521bf915967a7863922ae2

Download Submit
memory/2420-2-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download
memory/2420-1-0x0000000000800000-0x0000000000808000-memory.dmp

Filesize
32KB

Download
memory/2420-0-0x00000000746CE000-0x00000000746CF000-memory.dmp

Filesize
4KB

Download
memory/2420-3-0x0000000008A30000-0x0000000008D1C000-memory.dmp

Filesize
2.9MB

Download
memory/2420-9-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-13-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-4-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-17-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-5-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-31-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-35-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-7-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-11-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-15-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-19-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-21-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-27-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-29-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-43-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-47-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-49-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-45-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-41-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-39-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-37-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-33-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-25-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-23-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-51-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-53-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-67-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-65-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-63-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-61-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-59-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-4890-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download
memory/2420-57-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-55-0x0000000008A30000-0x0000000008D16000-memory.dmp

Filesize
2.9MB

Download
memory/2420-4892-0x0000000004670000-0x00000000046BC000-memory.dmp

Filesize
304KB

Download
memory/2420-4891-0x0000000006590000-0x00000000066B8000-memory.dmp

Filesize
1.2MB

Download
memory/2420-4893-0x00000000746CE000-0x00000000746CF000-memory.dmp

Filesize
4KB

Download
memory/2420-4894-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download
memory/2420-4895-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download
memory/2420-4896-0x0000000004B00000-0x0000000004B54000-memory.dmp

Filesize
336KB

Download
memory/2420-4910-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download
memory/2724-4909-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/2724-4911-0x0000000004C10000-0x0000000004D26000-memory.dmp

Filesize
1.1MB

Download
memory/2724-4913-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download
memory/2724-4912-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download
memory/2724-7250-0x0000000005100000-0x000000000519E000-memory.dmp

Filesize
632KB

Download
memory/2724-7251-0x0000000004200000-0x000000000422C000-memory.dmp

Filesize
176KB

Download
memory/2724-7252-0x0000000005590000-0x000000000560A000-memory.dmp

Filesize
488KB

Download
memory/2724-7282-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download