purecrypter | e293ca4ad9388a417b4e8fb38a831df8e943510bd53db4a0f46f1ee6c3133fc3

Analysis

max time kernel
56s
max time network
61s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
15-06-2023 17:32

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General

Target

9C4EF5E009E8E96631E6C73134506609.exe
Size

6KB
MD5

9c4ef5e009e8e96631e6c73134506609
SHA1

b19ce778b85936e1aeeb6b13a7591177d1d4526b
SHA256

e293ca4ad9388a417b4e8fb38a831df8e943510bd53db4a0f46f1ee6c3133fc3
SHA512

8b733109660a4fd022ec77b259de247d50241d85527ded7a1985dc2f82e9d12d92f964a5f0bd3f3d552a3387e6fc040cccb75eafee81930b972916582b0c45d0
SSDEEP

96:vznFgcGRlhf0K9KgCXRZ2WY+23xS7dYXa1CBzNt:vT9GZP9UT6+mS7dYXECD

Score

10^/10

purecrypter downloader loader persistence

Malware Config

Extracted

Family

purecrypter

https://dl.dropboxusercontent.com/s/1mpgaivww6h97gb/Fhhps.dat?dl=0

Signatures

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rgeodqae = "\"C:\\Users\\Admin\\AppData\\Roaming\\Rgeodqae.exe\""	9C4EF5E009E8E96631E6C73134506609.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4464 set thread context of 1228	4464	9C4EF5E009E8E96631E6C73134506609.exe	91

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4464	9C4EF5E009E8E96631E6C73134506609.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4464 wrote to memory of 1228	4464	9C4EF5E009E8E96631E6C73134506609.exe	91
PID 4464 wrote to memory of 1228	4464	9C4EF5E009E8E96631E6C73134506609.exe	91
PID 4464 wrote to memory of 1228	4464	9C4EF5E009E8E96631E6C73134506609.exe	91
PID 4464 wrote to memory of 1228	4464	9C4EF5E009E8E96631E6C73134506609.exe	91
PID 4464 wrote to memory of 1228	4464	9C4EF5E009E8E96631E6C73134506609.exe	91
PID 4464 wrote to memory of 1228	4464	9C4EF5E009E8E96631E6C73134506609.exe	91
PID 4464 wrote to memory of 1228	4464	9C4EF5E009E8E96631E6C73134506609.exe	91
PID 4464 wrote to memory of 1228	4464	9C4EF5E009E8E96631E6C73134506609.exe	91
PID 4464 wrote to memory of 1228	4464	9C4EF5E009E8E96631E6C73134506609.exe	91

C:\Users\Admin\AppData\Local\Temp\9C4EF5E009E8E96631E6C73134506609.exe
"C:\Users\Admin\AppData\Local\Temp\9C4EF5E009E8E96631E6C73134506609.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4464
- C:\Users\Admin\AppData\Local\Temp\9C4EF5E009E8E96631E6C73134506609.exe
  C:\Users\Admin\AppData\Local\Temp\9C4EF5E009E8E96631E6C73134506609.exe
  2⤵
  PID:1228

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1228-1067-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1228-1068-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/4464-168-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-200-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-137-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-138-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-140-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-142-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-133-0x0000000000BC0000-0x0000000000BC8000-memory.dmp

Filesize
32KB

Download
memory/4464-146-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-148-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-150-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-152-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-154-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-156-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-158-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-160-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-162-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-164-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-172-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-144-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-136-0x0000000006960000-0x00000000069F2000-memory.dmp

Filesize
584KB

Download
memory/4464-166-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-174-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-176-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-178-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-180-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-182-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-184-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-186-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-188-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-190-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-192-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-194-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-196-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-198-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-170-0x00000000067A0000-0x0000000006878000-memory.dmp

Filesize
864KB

Download
memory/4464-1059-0x0000000006CE0000-0x0000000006D46000-memory.dmp

Filesize
408KB

Download
memory/4464-1060-0x0000000006900000-0x0000000006901000-memory.dmp

Filesize
4KB

Download
memory/4464-1061-0x0000000005440000-0x0000000005450000-memory.dmp

Filesize
64KB

Download
memory/4464-135-0x0000000006E30000-0x00000000073D4000-memory.dmp

Filesize
5.6MB

Download
memory/4464-134-0x0000000005440000-0x0000000005450000-memory.dmp

Filesize
64KB

Download