purecrypter | 5016ba92afac1c2b2a2a6b17a09406869bd6f58cfe680f25030af1a1ba1c29a2

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
02-10-2024 06:02

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General

Target

5016ba92afac1c2b2a2a6b17a09406869bd6f58cfe680f25030af1a1ba1c29a2.exe
Size

25KB
MD5

0b8bb8ed90799aa967281f96d1b3a75d
SHA1

f083724cffd51f9bd9afe08419598c9672cf8caf
SHA256

5016ba92afac1c2b2a2a6b17a09406869bd6f58cfe680f25030af1a1ba1c29a2
SHA512

9571b38bc86971adeb6a0f18e6bdcdcb704e00a845bd5c8f62e3d4237789221e3fb8962a6ae5d7860fbf3ec6a1ba7a7ec263cf1f343a50704ed0620809f27e38
SSDEEP

192:YLj1DESCjSLuZmff5XLO4gZYQHbEvNesGhv:YZE5WLuoff5XLOZYCgvNesc

Score

10^/10

purecrypter discovery downloader loader

Malware Config

Extracted

Family

purecrypter

http://savory.com.bd/sav/Ztvfo.png

Signatures

PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
loader downloader purecrypter
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2252 1952 WerFault.exe 5016ba92afac1c2b2a2a6b17a09406869bd6f58cfe680f25030af1a1ba1c29a2.exe

pid	pid_target	process	target process
2252	1952	WerFault.exe	5016ba92afac1c2b2a2a6b17a09406869bd6f58cfe680f25030af1a1ba1c29a2.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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

Processes:

5016ba92afac1c2b2a2a6b17a09406869bd6f58cfe680f25030af1a1ba1c29a2.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5016ba92afac1c2b2a2a6b17a09406869bd6f58cfe680f25030af1a1ba1c29a2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

5016ba92afac1c2b2a2a6b17a09406869bd6f58cfe680f25030af1a1ba1c29a2.exe

description pid process

Token: SeDebugPrivilege 1952 5016ba92afac1c2b2a2a6b17a09406869bd6f58cfe680f25030af1a1ba1c29a2.exe

description	pid	process
Token: SeDebugPrivilege	1952	5016ba92afac1c2b2a2a6b17a09406869bd6f58cfe680f25030af1a1ba1c29a2.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

5016ba92afac1c2b2a2a6b17a09406869bd6f58cfe680f25030af1a1ba1c29a2.exe

description	pid	process	target process
PID 1952 wrote to memory of 2252	1952	5016ba92afac1c2b2a2a6b17a09406869bd6f58cfe680f25030af1a1ba1c29a2.exe	WerFault.exe
PID 1952 wrote to memory of 2252	1952	5016ba92afac1c2b2a2a6b17a09406869bd6f58cfe680f25030af1a1ba1c29a2.exe	WerFault.exe
PID 1952 wrote to memory of 2252	1952	5016ba92afac1c2b2a2a6b17a09406869bd6f58cfe680f25030af1a1ba1c29a2.exe	WerFault.exe
PID 1952 wrote to memory of 2252	1952	5016ba92afac1c2b2a2a6b17a09406869bd6f58cfe680f25030af1a1ba1c29a2.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\5016ba92afac1c2b2a2a6b17a09406869bd6f58cfe680f25030af1a1ba1c29a2.exe
"C:\Users\Admin\AppData\Local\Temp\5016ba92afac1c2b2a2a6b17a09406869bd6f58cfe680f25030af1a1ba1c29a2.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1952 -s 1136
  2⤵
  - Program crash
  PID:2252

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1952-0-0x000000007407E000-0x000000007407F000-memory.dmp

Filesize
4KB

Download
memory/1952-1-0x0000000001280000-0x000000000128C000-memory.dmp

Filesize
48KB

Download
memory/1952-2-0x0000000074070000-0x000000007475E000-memory.dmp

Filesize
6.9MB

Download
memory/1952-3-0x0000000074070000-0x000000007475E000-memory.dmp

Filesize
6.9MB

Download
memory/1952-4-0x0000000074070000-0x000000007475E000-memory.dmp

Filesize
6.9MB

Download