ec41dc11de92db5fd53bfb863828338d2e8de2ed03434d44f38be3dbec66ff6b

Analysis

max time kernel
92s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2024 16:59

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General

Target

Crypto Ripper + reFUD pack/Crypto Obfuscator For .Net 2013/CryptoObfuscator.exe
Size

8.2MB
MD5

40685b8b533fdf3a2f5f14645e402cf4
SHA1

b375c9244ad48e6cf16a9c192efe6493d2fc54ff
SHA256

022873192bac963ae24e25c63e04b3255f8b6fe38954579ec9825e80281236c6
SHA512

62da313ee13f738076cad1c38207927f7353994d595d64d8ce10aea5c717a35f8e3badce8801634642f80be2ae2e8fc6b11142aac67b6ff24cf8b414e3cbaaa8
SSDEEP

196608:tRfDUvCtuFwVgaTEPRHNRtNcAFAPdMCId/7kBHg1sZwOau0XC7wyViSuCUy9hWhm:tRfAatuF2dE/dcaAPdTId/WssZ2o3ViK

Score

7^/10

persistence privilege_escalation

Malware Config

Signatures

Event Triggered Execution: Component Object Model Hijacking 1 TTPs
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
persistence privilege_escalation

Component Object Model Hijacking
T1546.015

Loads dropped DLL 1 IoCs

Processes:

CryptoObfuscator.exe

pid	Process
1036	CryptoObfuscator.exe

Drops desktop.ini file(s) 2 IoCs

Processes:

CryptoObfuscator.exe

description	ioc	Process
File opened for modification	C:\Windows\assembly\Desktop.ini	CryptoObfuscator.exe
File created	C:\Windows\assembly\Desktop.ini	CryptoObfuscator.exe

Drops file in Windows directory 3 IoCs

Processes:

CryptoObfuscator.exe

description	ioc	Process
File opened for modification	C:\Windows\assembly	CryptoObfuscator.exe
File created	C:\Windows\assembly\Desktop.ini	CryptoObfuscator.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	CryptoObfuscator.exe

Modifies registry class 5 IoCs

Processes:

CryptoObfuscator.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{f125ba9c-945a-2fe0-3478-16182f324fcf3}\InProcServer32	CryptoObfuscator.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID	CryptoObfuscator.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{f125ba9c-945a-2fe0-3478-16182f324fcf3}	CryptoObfuscator.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{f125ba9c-945a-2fe0-3478-16182f324fcf3}\InProcServer32\ = 794ddc27c93ddb010040e0fd3b374f01000000000000000000000000	CryptoObfuscator.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{f125ba9c-945a-2fe0-3478-16182f324fcf3}\InProcServer32\ = 794ddc27c93ddb019bafde27c93ddb01010000000100000000000000	CryptoObfuscator.exe

Suspicious behavior: EnumeratesProcesses 34 IoCs

Processes:

CryptoObfuscator.exe

pid	Process
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe
1036	CryptoObfuscator.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

CryptoObfuscator.exe

pid	Process
1036	CryptoObfuscator.exe

C:\Users\Admin\AppData\Local\Temp\Crypto Ripper + reFUD pack\Crypto Obfuscator For .Net 2013\CryptoObfuscator.exe
"C:\Users\Admin\AppData\Local\Temp\Crypto Ripper + reFUD pack\Crypto Obfuscator For .Net 2013\CryptoObfuscator.exe"
1⤵
- Loads dropped DLL
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Component Object Model Hijacking

T1546.015

Privilege Escalation

Event Triggered Execution

T1546

Component Object Model Hijacking

T1546.015

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\SkinSoft\VisualStyler\2.4.0.0\x64\ssapihook.dll

Filesize
67KB

MD5
8b003c3f98f8d08968ac5d3c1cc90a60

SHA1
68f8d418638a81839a2ad665909916cda8efe625

SHA256
d52a9c53f510237a194211aa3dc7d0f22f80fcc0593d9d77e0827ba6681b47e9

SHA512
429e97c74b8e45a43d09618972f04ba46a8075867a631543eb7b7cbbb55a719cbe2e0412f3b63b989741e3807d733b2a6f3ecb735278adc5e734e18e297c4015

Download Submit
memory/1036-23-0x00007FFE93510000-0x00007FFE93511000-memory.dmp

Filesize
4KB

Download
memory/1036-6-0x000000001CED0000-0x000000001D39E000-memory.dmp

Filesize
4.8MB

Download
memory/1036-2-0x00007FFEF7020000-0x00007FFEF79C1000-memory.dmp

Filesize
9.6MB

Download
memory/1036-0-0x00007FFEF72D5000-0x00007FFEF72D6000-memory.dmp

Filesize
4KB

Download
memory/1036-7-0x000000001D440000-0x000000001D4DC000-memory.dmp

Filesize
624KB

Download
memory/1036-24-0x00007FFE93520000-0x00007FFE93521000-memory.dmp

Filesize
4KB

Download
memory/1036-9-0x00007FFEF7020000-0x00007FFEF79C1000-memory.dmp

Filesize
9.6MB

Download
memory/1036-10-0x000000001C9A0000-0x000000001C9A8000-memory.dmp

Filesize
32KB

Download
memory/1036-11-0x000000001D8E0000-0x000000001D90E000-memory.dmp

Filesize
184KB

Download
memory/1036-13-0x000000001D7D0000-0x000000001D7D8000-memory.dmp

Filesize
32KB

Download
memory/1036-12-0x00007FFEF7020000-0x00007FFEF79C1000-memory.dmp

Filesize
9.6MB

Download
memory/1036-14-0x00007FFEF7020000-0x00007FFEF79C1000-memory.dmp

Filesize
9.6MB

Download
memory/1036-15-0x00007FFEF7020000-0x00007FFEF79C1000-memory.dmp

Filesize
9.6MB

Download
memory/1036-1-0x00007FFEF7020000-0x00007FFEF79C1000-memory.dmp

Filesize
9.6MB

Download
memory/1036-20-0x00007FFE93500000-0x00007FFE93501000-memory.dmp

Filesize
4KB

Download
memory/1036-21-0x00007FFE934F0000-0x00007FFE934F1000-memory.dmp

Filesize
4KB

Download
memory/1036-39-0x00007FFEF7020000-0x00007FFEF79C1000-memory.dmp

Filesize
9.6MB

Download
memory/1036-3-0x000000001C730000-0x000000001C810000-memory.dmp

Filesize
896KB

Download
memory/1036-8-0x000000001D7E0000-0x000000001D8E2000-memory.dmp

Filesize
1.0MB

Download
memory/1036-25-0x00007FFE93590000-0x00007FFE93591000-memory.dmp

Filesize
4KB

Download
memory/1036-26-0x00007FFE93530000-0x00007FFE93531000-memory.dmp

Filesize
4KB

Download
memory/1036-27-0x00007FFE93540000-0x00007FFE93541000-memory.dmp

Filesize
4KB

Download
memory/1036-28-0x00007FFE93560000-0x00007FFE93561000-memory.dmp

Filesize
4KB

Download
memory/1036-29-0x00007FFE93570000-0x00007FFE93571000-memory.dmp

Filesize
4KB

Download
memory/1036-30-0x00007FFE93550000-0x00007FFE93551000-memory.dmp

Filesize
4KB

Download
memory/1036-31-0x00007FFE93580000-0x00007FFE93581000-memory.dmp

Filesize
4KB

Download
memory/1036-32-0x00007FFE935A0000-0x00007FFE935A1000-memory.dmp

Filesize
4KB

Download
memory/1036-33-0x00007FFE90150000-0x00007FFE90151000-memory.dmp

Filesize
4KB

Download
memory/1036-34-0x00007FFE901A0000-0x00007FFE901A1000-memory.dmp

Filesize
4KB

Download
memory/1036-35-0x00007FFE90160000-0x00007FFE90161000-memory.dmp

Filesize
4KB

Download
memory/1036-36-0x00007FFE901B0000-0x00007FFE901B1000-memory.dmp

Filesize
4KB

Download
memory/1036-37-0x00007FFEF7020000-0x00007FFEF79C1000-memory.dmp

Filesize
9.6MB

Download
memory/1036-38-0x00007FFEF72D5000-0x00007FFEF72D6000-memory.dmp

Filesize
4KB

Download
memory/1036-22-0x00007FFE92820000-0x00007FFE92821000-memory.dmp

Filesize
4KB

Download
memory/1036-40-0x00007FFEF7020000-0x00007FFEF79C1000-memory.dmp

Filesize
9.6MB

Download