ddc80fa32436daf578d44314f43e7aa5aa11e53c1c002780579d1ee1e2c85426

Analysis

max time kernel
186s
max time network
195s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2022 20:18

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General

Target

ddc80fa32436daf578d44314f43e7aa5aa11e53c1c002780579d1ee1e2c85426.dll
Size

178KB
MD5

215193140795e86cf7cf538bbe935188
SHA1

a4e240d63976a940e5aa6da6cd5eca41967af8dd
SHA256

ddc80fa32436daf578d44314f43e7aa5aa11e53c1c002780579d1ee1e2c85426
SHA512

d3399b0901f9e7cd34316aaad0db605ed6c1e9d607b68bedb7f2b60e4d3b875e54d311a6f25dce42a375758572fe1ffddb97aaae94d2ff2828712c41b4348fb9
SSDEEP

3072:iRbvvVszkyf+H8M6JMnY/YpBi9teVjw2x7iCEujjvsYFRg/L5HyfIetstITqYsCn:CbvvVsQO+cMuugYni+VviC7jvFc/LIft

Score

8^/10

persistence vmprotect

Malware Config

Signatures

Sets DLL path for service in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\FastUserSwitchingCompatibility\Parameters\ServiceDll = "C:\\Windows\\inf\\Mchicken.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Ias\Parameters\ServiceDll = "C:\\Windows\\inf\\Mchicken.dll"	rundll32.exe

VMProtect packed file 6 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral2/files/0x0007000000023172-134.dat	vmprotect
behavioral2/files/0x0007000000023172-135.dat	vmprotect
behavioral2/memory/3320-137-0x0000000071000000-0x0000000071061000-memory.dmp	vmprotect
behavioral2/files/0x0007000000023172-138.dat	vmprotect
behavioral2/memory/3696-140-0x0000000071000000-0x0000000071061000-memory.dmp	vmprotect
behavioral2/memory/3696-141-0x0000000071000000-0x0000000071061000-memory.dmp	vmprotect

Loads dropped DLL 2 IoCs

pid	Process
2704	svchost.exe
3696	svchost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\inf\Mchicken.dll	rundll32.exe
File created	C:\Windows\inf\Mchicken.dll	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3372	3320	WerFault.exe	81

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 3320	2252	rundll32.exe	81
PID 2252 wrote to memory of 3320	2252	rundll32.exe	81
PID 2252 wrote to memory of 3320	2252	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ddc80fa32436daf578d44314f43e7aa5aa11e53c1c002780579d1ee1e2c85426.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ddc80fa32436daf578d44314f43e7aa5aa11e53c1c002780579d1ee1e2c85426.dll,#1
  2⤵
  - Sets DLL path for service in the registry
  - Drops file in Windows directory
  PID:3320
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3320 -s 692
    3⤵
    - Program crash
    PID:3372

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s FastUserSwitchingCompatibility
1⤵
- Loads dropped DLL
PID:2704

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s Ias
1⤵
- Loads dropped DLL
PID:3696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3320 -ip 3320
1⤵
PID:3540

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

C:\Windows\INF\Mchicken.dll

Filesize
178KB

MD5
215193140795e86cf7cf538bbe935188

SHA1
a4e240d63976a940e5aa6da6cd5eca41967af8dd

SHA256
ddc80fa32436daf578d44314f43e7aa5aa11e53c1c002780579d1ee1e2c85426

SHA512
d3399b0901f9e7cd34316aaad0db605ed6c1e9d607b68bedb7f2b60e4d3b875e54d311a6f25dce42a375758572fe1ffddb97aaae94d2ff2828712c41b4348fb9

Download Submit
C:\Windows\INF\Mchicken.dll

Filesize
178KB

MD5
215193140795e86cf7cf538bbe935188

SHA1
a4e240d63976a940e5aa6da6cd5eca41967af8dd

SHA256
ddc80fa32436daf578d44314f43e7aa5aa11e53c1c002780579d1ee1e2c85426

SHA512
d3399b0901f9e7cd34316aaad0db605ed6c1e9d607b68bedb7f2b60e4d3b875e54d311a6f25dce42a375758572fe1ffddb97aaae94d2ff2828712c41b4348fb9

Download Submit
\??\c:\windows\inf\mchicken.dll

Filesize
178KB

MD5
215193140795e86cf7cf538bbe935188

SHA1
a4e240d63976a940e5aa6da6cd5eca41967af8dd

SHA256
ddc80fa32436daf578d44314f43e7aa5aa11e53c1c002780579d1ee1e2c85426

SHA512
d3399b0901f9e7cd34316aaad0db605ed6c1e9d607b68bedb7f2b60e4d3b875e54d311a6f25dce42a375758572fe1ffddb97aaae94d2ff2828712c41b4348fb9

Download Submit
memory/3320-132-0x0000000000000000-mapping.dmp

Download
memory/3320-133-0x0000000071001000-0x0000000071005000-memory.dmp

Filesize
16KB

Download
memory/3320-137-0x0000000071000000-0x0000000071061000-memory.dmp

Filesize
388KB

Download
memory/3696-140-0x0000000071000000-0x0000000071061000-memory.dmp

Filesize
388KB

Download
memory/3696-141-0x0000000071000000-0x0000000071061000-memory.dmp

Filesize
388KB

Download