45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82

Analysis

max time kernel
150s
max time network
105s
platform
windows7_x64
resource
win7-20220414-en
submitted
07-07-2022 10:47

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General

Target

45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe
Size

1.9MB
MD5

a11109d3316d966a57e8b50cd7ed12dc
SHA1

2cc9f2d62662abf99d83fad61d02452d9a4c764b
SHA256

45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82
SHA512

ff325b04a7039212135d988f01176c8d556f34a7182fcfd154eb123e4f11367440c7af7cca56d49ba9c175a1c77abf7e83e84cb2f4a3865fe02e0fa9087b546d

Score

10^/10

aspackv2 persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

services.exe45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe"	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe"	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

Processes:

resource	yara_rule
\Windows\SysWOW64\winkey.dll	aspack_v212_v242

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exeservices.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	services.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe

Executes dropped EXE 2 IoCs

Processes:

fservice.exeservices.exe

pid process

1268 fservice.exe
1004 services.exe

pid	process
1268	fservice.exe
1004	services.exe

Modifies Installed Components in the registry 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exeservices.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe"	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe"	services.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

952 cmd.exe

pid	process
952	cmd.exe

Loads dropped DLL 6 IoCs

Processes:

45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exeservices.exefservice.exe

pid	process
2024	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe
2024	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe
1004	services.exe
1004	services.exe
1268	fservice.exe
2024	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exeservices.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	services.exe

Drops file in System32 directory 7 IoCs

Processes:

services.exe45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exefservice.exe

description	ioc	process
File created	C:\Windows\SysWOW64\reginv.dll	services.exe
File created	C:\Windows\SysWOW64\fservice.exe	services.exe
File created	C:\Windows\SysWOW64\fservice.exe	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe
File created	C:\Windows\SysWOW64\fservice.exe	fservice.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	fservice.exe
File created	C:\Windows\SysWOW64\winkey.dll	services.exe

Drops file in Windows directory 7 IoCs

Processes:

fservice.exeservices.exe45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe

description	ioc	process
File opened for modification	C:\Windows\system\sservice.exe	fservice.exe
File created	C:\Windows\system\sservice.exe	services.exe
File created	C:\Windows\system\sservice.exe	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe
File opened for modification	C:\Windows\system\sservice.exe	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe
File created	C:\Windows\services.exe	fservice.exe
File opened for modification	C:\Windows\services.exe	fservice.exe
File created	C:\Windows\system\sservice.exe	fservice.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

services.exe

pid	process
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe
1004	services.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

services.exe

pid process

1004 services.exe
1004 services.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exefservice.exeservices.exeNET.exe

description	pid	process	target process
PID 2024 wrote to memory of 1268	2024	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe	fservice.exe
PID 2024 wrote to memory of 1268	2024	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe	fservice.exe
PID 2024 wrote to memory of 1268	2024	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe	fservice.exe
PID 2024 wrote to memory of 1268	2024	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe	fservice.exe
PID 1268 wrote to memory of 1004	1268	fservice.exe	services.exe
PID 1268 wrote to memory of 1004	1268	fservice.exe	services.exe
PID 1268 wrote to memory of 1004	1268	fservice.exe	services.exe
PID 1268 wrote to memory of 1004	1268	fservice.exe	services.exe
PID 1004 wrote to memory of 1728	1004	services.exe	NET.exe
PID 1004 wrote to memory of 1728	1004	services.exe	NET.exe
PID 1004 wrote to memory of 1728	1004	services.exe	NET.exe
PID 1004 wrote to memory of 1728	1004	services.exe	NET.exe
PID 1728 wrote to memory of 1600	1728	NET.exe	net1.exe
PID 1728 wrote to memory of 1600	1728	NET.exe	net1.exe
PID 1728 wrote to memory of 1600	1728	NET.exe	net1.exe
PID 1728 wrote to memory of 1600	1728	NET.exe	net1.exe
PID 2024 wrote to memory of 952	2024	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe	cmd.exe
PID 2024 wrote to memory of 952	2024	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe	cmd.exe
PID 2024 wrote to memory of 952	2024	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe	cmd.exe
PID 2024 wrote to memory of 952	2024	45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe
"C:\Users\Admin\AppData\Local\Temp\45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe"
1⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Modifies Installed Components in the registry
- Loads dropped DLL
- Modifies WinLogon
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2024

C:\Windows\SysWOW64\fservice.exe
C:\Windows\system32\fservice.exe
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1268

C:\Windows\services.exe
C:\Windows\services.exe -XP
3⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Executes dropped EXE
- Modifies Installed Components in the registry
- Loads dropped DLL
- Modifies WinLogon
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1004

C:\Windows\SysWOW64\NET.exe
NET STOP navapsvc
4⤵
- Suspicious use of WriteProcessMemory
PID:1728

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 STOP navapsvc
5⤵
PID:1600

C:\Windows\SysWOW64\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe.bat
2⤵
- Deletes itself
PID:952

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82.exe.bat
Filesize
133B

MD5
62b57691cd1ca29732eb2a2811b4897b

SHA1
8f5957e51911da5d238cb5842ce683c9c443f978

SHA256
720b0b99c9b7ed7e919c240c6fa9d56c7fa8c1aeba167942bf82798a49d696f6

SHA512
d4dc23459f5d011b2c30da48e7c401b4993ecbe734ae9659250caad39d5a88591a4886b108e131682f0fbf4030a7793a453b1821f59942765fefaa93ec02e126

Download Submit
C:\Windows\SysWOW64\fservice.exe
Filesize
1.9MB

MD5
a11109d3316d966a57e8b50cd7ed12dc

SHA1
2cc9f2d62662abf99d83fad61d02452d9a4c764b

SHA256
45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82

SHA512
ff325b04a7039212135d988f01176c8d556f34a7182fcfd154eb123e4f11367440c7af7cca56d49ba9c175a1c77abf7e83e84cb2f4a3865fe02e0fa9087b546d

Download Submit
C:\Windows\SysWOW64\fservice.exe
Filesize
1.9MB

MD5
a11109d3316d966a57e8b50cd7ed12dc

SHA1
2cc9f2d62662abf99d83fad61d02452d9a4c764b

SHA256
45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82

SHA512
ff325b04a7039212135d988f01176c8d556f34a7182fcfd154eb123e4f11367440c7af7cca56d49ba9c175a1c77abf7e83e84cb2f4a3865fe02e0fa9087b546d

Download Submit
C:\Windows\SysWOW64\reginv.dll
Filesize
36KB

MD5
562e0d01d6571fa2251a1e9f54c6cc69

SHA1
83677ad3bc630aa6327253c7b3deffbd4a8ce905

SHA256
c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

SHA512
166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

Download Submit
C:\Windows\services.exe
Filesize
1.9MB

MD5
a11109d3316d966a57e8b50cd7ed12dc

SHA1
2cc9f2d62662abf99d83fad61d02452d9a4c764b

SHA256
45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82

SHA512
ff325b04a7039212135d988f01176c8d556f34a7182fcfd154eb123e4f11367440c7af7cca56d49ba9c175a1c77abf7e83e84cb2f4a3865fe02e0fa9087b546d

Download Submit
C:\Windows\services.exe
Filesize
1.9MB

MD5
a11109d3316d966a57e8b50cd7ed12dc

SHA1
2cc9f2d62662abf99d83fad61d02452d9a4c764b

SHA256
45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82

SHA512
ff325b04a7039212135d988f01176c8d556f34a7182fcfd154eb123e4f11367440c7af7cca56d49ba9c175a1c77abf7e83e84cb2f4a3865fe02e0fa9087b546d

Download Submit
C:\Windows\system\sservice.exe
Filesize
1.9MB

MD5
a11109d3316d966a57e8b50cd7ed12dc

SHA1
2cc9f2d62662abf99d83fad61d02452d9a4c764b

SHA256
45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82

SHA512
ff325b04a7039212135d988f01176c8d556f34a7182fcfd154eb123e4f11367440c7af7cca56d49ba9c175a1c77abf7e83e84cb2f4a3865fe02e0fa9087b546d

Download Submit
\Windows\SysWOW64\fservice.exe
Filesize
1.9MB

MD5
a11109d3316d966a57e8b50cd7ed12dc

SHA1
2cc9f2d62662abf99d83fad61d02452d9a4c764b

SHA256
45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82

SHA512
ff325b04a7039212135d988f01176c8d556f34a7182fcfd154eb123e4f11367440c7af7cca56d49ba9c175a1c77abf7e83e84cb2f4a3865fe02e0fa9087b546d

Download Submit
\Windows\SysWOW64\fservice.exe
Filesize
1.9MB

MD5
a11109d3316d966a57e8b50cd7ed12dc

SHA1
2cc9f2d62662abf99d83fad61d02452d9a4c764b

SHA256
45cc84a95b2d3de60782bcc9e3b203ba2f0ac36f9ed1faeb2e675670e4447c82

SHA512
ff325b04a7039212135d988f01176c8d556f34a7182fcfd154eb123e4f11367440c7af7cca56d49ba9c175a1c77abf7e83e84cb2f4a3865fe02e0fa9087b546d

Download Submit
\Windows\SysWOW64\reginv.dll
Filesize
36KB

MD5
562e0d01d6571fa2251a1e9f54c6cc69

SHA1
83677ad3bc630aa6327253c7b3deffbd4a8ce905

SHA256
c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

SHA512
166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

Download Submit
\Windows\SysWOW64\reginv.dll
Filesize
36KB

MD5
562e0d01d6571fa2251a1e9f54c6cc69

SHA1
83677ad3bc630aa6327253c7b3deffbd4a8ce905

SHA256
c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

SHA512
166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

Download Submit
\Windows\SysWOW64\reginv.dll
Filesize
36KB

MD5
562e0d01d6571fa2251a1e9f54c6cc69

SHA1
83677ad3bc630aa6327253c7b3deffbd4a8ce905

SHA256
c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

SHA512
166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

Download Submit
\Windows\SysWOW64\winkey.dll
Filesize
13KB

MD5
b4c72da9fd1a0dcb0698b7da97daa0cd

SHA1
b25a79e8ea4c723c58caab83aed6ea48de7ed759

SHA256
45d266269634ba2de70f179a26d7224111e677e66b38dff2802851b71ce4458f

SHA512
f5f184416c5381d275bc093c9275e9fdb35c58e2c401d188aef097950013de6e43269da5d4dd5e7baea34735bd7de664d15fe487b2292fd66926c9845b0cd066

Download Submit
memory/952-74-0x0000000000000000-mapping.dmp

Download
memory/1004-62-0x0000000000000000-mapping.dmp

Download
memory/1004-73-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/1268-57-0x0000000000000000-mapping.dmp

Download
memory/1600-72-0x0000000000000000-mapping.dmp

Download
memory/1728-66-0x0000000000000000-mapping.dmp

Download
memory/2024-54-0x0000000075B71000-0x0000000075B73000-memory.dmp

Filesize
8KB

Download