2a7bc92ba6c0b1e2aa9439fdc63d4c9b03928a83444155828538cd8e78362ad5

General

Target

uncategorized_4.5.4.5.vir.exe
Size

224KB
MD5

915cc8c31e37f88a6be43ae64602acd4
SHA1

d043149e6050497ab7ae81d29419c586e5e9cf64
SHA256

2a7bc92ba6c0b1e2aa9439fdc63d4c9b03928a83444155828538cd8e78362ad5
SHA512

0ce24074a6d06bc3f6419490319a90814bf06bbb0faa98e4ba49ffe6b8c91cf2352fd0aac19f79dd0bbbcf39fc22f028a0df906f3365c953f03ddb4956969a2a

Score

8^/10

persistence

Malware Config

Signatures

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

uncategorized_4.5.4.5.vir.execyif.exe

pid process

1100 uncategorized_4.5.4.5.vir.exe
272 cyif.exe
Loads dropped DLL 2 IoCs

Processes:

uncategorized_4.5.4.5.vir.exe

pid process

832 uncategorized_4.5.4.5.vir.exe
832 uncategorized_4.5.4.5.vir.exe
Executes dropped EXE 2 IoCs

Processes:

cyif.execyif.exe

pid process

272 cyif.exe
1556 cyif.exe

pid	process
1100	uncategorized_4.5.4.5.vir.exe
272	cyif.exe

pid	process
832	uncategorized_4.5.4.5.vir.exe
832	uncategorized_4.5.4.5.vir.exe

pid	process
272	cyif.exe
1556	cyif.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

Processes:

cyif.exe

pid	process
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe
1556	cyif.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1508 cmd.exe

pid	process
1508	cmd.exe

Suspicious use of WriteProcessMemory 66 IoCs

Processes:

uncategorized_4.5.4.5.vir.exeuncategorized_4.5.4.5.vir.execyif.execyif.exe

description	pid	process	target process
PID 1100 wrote to memory of 832	1100	uncategorized_4.5.4.5.vir.exe	uncategorized_4.5.4.5.vir.exe
PID 1100 wrote to memory of 832	1100	uncategorized_4.5.4.5.vir.exe	uncategorized_4.5.4.5.vir.exe
PID 1100 wrote to memory of 832	1100	uncategorized_4.5.4.5.vir.exe	uncategorized_4.5.4.5.vir.exe
PID 1100 wrote to memory of 832	1100	uncategorized_4.5.4.5.vir.exe	uncategorized_4.5.4.5.vir.exe
PID 1100 wrote to memory of 832	1100	uncategorized_4.5.4.5.vir.exe	uncategorized_4.5.4.5.vir.exe
PID 1100 wrote to memory of 832	1100	uncategorized_4.5.4.5.vir.exe	uncategorized_4.5.4.5.vir.exe
PID 1100 wrote to memory of 832	1100	uncategorized_4.5.4.5.vir.exe	uncategorized_4.5.4.5.vir.exe
PID 1100 wrote to memory of 832	1100	uncategorized_4.5.4.5.vir.exe	uncategorized_4.5.4.5.vir.exe
PID 1100 wrote to memory of 832	1100	uncategorized_4.5.4.5.vir.exe	uncategorized_4.5.4.5.vir.exe
PID 832 wrote to memory of 272	832	uncategorized_4.5.4.5.vir.exe	cyif.exe
PID 832 wrote to memory of 272	832	uncategorized_4.5.4.5.vir.exe	cyif.exe
PID 832 wrote to memory of 272	832	uncategorized_4.5.4.5.vir.exe	cyif.exe
PID 832 wrote to memory of 272	832	uncategorized_4.5.4.5.vir.exe	cyif.exe
PID 272 wrote to memory of 1556	272	cyif.exe	cyif.exe
PID 272 wrote to memory of 1556	272	cyif.exe	cyif.exe
PID 272 wrote to memory of 1556	272	cyif.exe	cyif.exe
PID 272 wrote to memory of 1556	272	cyif.exe	cyif.exe
PID 272 wrote to memory of 1556	272	cyif.exe	cyif.exe
PID 272 wrote to memory of 1556	272	cyif.exe	cyif.exe
PID 272 wrote to memory of 1556	272	cyif.exe	cyif.exe
PID 272 wrote to memory of 1556	272	cyif.exe	cyif.exe
PID 272 wrote to memory of 1556	272	cyif.exe	cyif.exe
PID 1556 wrote to memory of 1152	1556	cyif.exe	taskhost.exe
PID 1556 wrote to memory of 1152	1556	cyif.exe	taskhost.exe
PID 1556 wrote to memory of 1152	1556	cyif.exe	taskhost.exe
PID 1556 wrote to memory of 1152	1556	cyif.exe	taskhost.exe
PID 1556 wrote to memory of 1152	1556	cyif.exe	taskhost.exe
PID 1556 wrote to memory of 1256	1556	cyif.exe	Dwm.exe
PID 1556 wrote to memory of 1256	1556	cyif.exe	Dwm.exe
PID 1556 wrote to memory of 1256	1556	cyif.exe	Dwm.exe
PID 1556 wrote to memory of 1256	1556	cyif.exe	Dwm.exe
PID 1556 wrote to memory of 1256	1556	cyif.exe	Dwm.exe
PID 1556 wrote to memory of 1300	1556	cyif.exe	Explorer.EXE
PID 1556 wrote to memory of 1300	1556	cyif.exe	Explorer.EXE
PID 1556 wrote to memory of 1300	1556	cyif.exe	Explorer.EXE
PID 1556 wrote to memory of 1300	1556	cyif.exe	Explorer.EXE
PID 1556 wrote to memory of 1300	1556	cyif.exe	Explorer.EXE
PID 1556 wrote to memory of 832	1556	cyif.exe	uncategorized_4.5.4.5.vir.exe
PID 1556 wrote to memory of 832	1556	cyif.exe	uncategorized_4.5.4.5.vir.exe
PID 1556 wrote to memory of 832	1556	cyif.exe	uncategorized_4.5.4.5.vir.exe
PID 1556 wrote to memory of 832	1556	cyif.exe	uncategorized_4.5.4.5.vir.exe
PID 1556 wrote to memory of 832	1556	cyif.exe	uncategorized_4.5.4.5.vir.exe
PID 832 wrote to memory of 1508	832	uncategorized_4.5.4.5.vir.exe	cmd.exe
PID 832 wrote to memory of 1508	832	uncategorized_4.5.4.5.vir.exe	cmd.exe
PID 832 wrote to memory of 1508	832	uncategorized_4.5.4.5.vir.exe	cmd.exe
PID 832 wrote to memory of 1508	832	uncategorized_4.5.4.5.vir.exe	cmd.exe
PID 1556 wrote to memory of 1416	1556	cyif.exe	DllHost.exe
PID 1556 wrote to memory of 1416	1556	cyif.exe	DllHost.exe
PID 1556 wrote to memory of 1416	1556	cyif.exe	DllHost.exe
PID 1556 wrote to memory of 1416	1556	cyif.exe	DllHost.exe
PID 1556 wrote to memory of 1416	1556	cyif.exe	DllHost.exe
PID 1556 wrote to memory of 1508	1556	cyif.exe	cmd.exe
PID 1556 wrote to memory of 1508	1556	cyif.exe	cmd.exe
PID 1556 wrote to memory of 1508	1556	cyif.exe	cmd.exe
PID 1556 wrote to memory of 1508	1556	cyif.exe	cmd.exe
PID 1556 wrote to memory of 1508	1556	cyif.exe	cmd.exe
PID 1556 wrote to memory of 1220	1556	cyif.exe	conhost.exe
PID 1556 wrote to memory of 1220	1556	cyif.exe	conhost.exe
PID 1556 wrote to memory of 1220	1556	cyif.exe	conhost.exe
PID 1556 wrote to memory of 1220	1556	cyif.exe	conhost.exe
PID 1556 wrote to memory of 1220	1556	cyif.exe	conhost.exe
PID 1556 wrote to memory of 1820	1556	cyif.exe	DllHost.exe
PID 1556 wrote to memory of 1820	1556	cyif.exe	DllHost.exe
PID 1556 wrote to memory of 1820	1556	cyif.exe	DllHost.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

uncategorized_4.5.4.5.vir.execyif.exe

description	pid	process	target process
PID 1100 set thread context of 832	1100	uncategorized_4.5.4.5.vir.exe	uncategorized_4.5.4.5.vir.exe
PID 272 set thread context of 1556	272	cyif.exe	cyif.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

uncategorized_4.5.4.5.vir.exe

description pid process

Token: SeSecurityPrivilege 832 uncategorized_4.5.4.5.vir.exe

description	pid	process
Token: SeSecurityPrivilege	832	uncategorized_4.5.4.5.vir.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

uncategorized_4.5.4.5.vir.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	uncategorized_4.5.4.5.vir.exe
Key created	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Internet Explorer\Privacy	uncategorized_4.5.4.5.vir.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cyif.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\Currentversion\Run	cyif.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run\\|62D8FA23-0ED4-852E-3418-0D361125E2D4} = "C:\\Users\\Admin\\AppData\\Roaming\\Pifu\\cyif.exe"	cyif.exe

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1152

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1256

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1300

C:\Users\Admin\AppData\Local\Temp\uncategorized_4.5.4.5.vir.exe
"C:\Users\Admin\AppData\Local\Temp\uncategorized_4.5.4.5.vir.exe"
2⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
PID:1100

C:\Users\Admin\AppData\Local\Temp\uncategorized_4.5.4.5.vir.exe
"C:\Users\Admin\AppData\Local\Temp\uncategorized_4.5.4.5.vir.exe"
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
- Modifies Internet Explorer settings
PID:832

C:\Users\Admin\AppData\Roaming\Pifu\cyif.exe
"C:\Users\Admin\AppData\Roaming\Pifu\cyif.exe"
4⤵
- Suspicious use of SetWindowsHookEx
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
PID:272

C:\Users\Admin\AppData\Roaming\Pifu\cyif.exe
"C:\Users\Admin\AppData\Roaming\Pifu\cyif.exe"
5⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Adds Run key to start application
PID:1556

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpf190fcea.bat"
4⤵
- Deletes itself
PID:1508

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1416

C:\Windows\system32\conhost.exe
\??\C:\Windows\system32\conhost.exe "-438052694-17970275451677837502-2020572698-41992580-236522732-1583411579-1809546582"
1⤵
PID:1220

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1820

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpf190fcea.bat

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C:\Users\Admin\AppData\Roaming\Pifu\cyif.exe

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C:\Users\Admin\AppData\Roaming\Pifu\cyif.exe

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C:\Users\Admin\AppData\Roaming\Pifu\cyif.exe

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\Users\Admin\AppData\Roaming\Pifu\cyif.exe

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\Users\Admin\AppData\Roaming\Pifu\cyif.exe

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memory/272-17-0x0000000000230000-0x0000000000234000-memory.dmp

Filesize
16KB

Download
memory/272-9-0x0000000000000000-mapping.dmp

Download
memory/272-19-0x0000000002930000-0x0000000002934000-memory.dmp

Filesize
16KB

Download
memory/832-6-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/832-2-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/832-20-0x0000000000418ADF-mapping.dmp

Download
memory/832-3-0x0000000000418ADF-mapping.dmp

Download
memory/1100-5-0x0000000002880000-0x0000000002884000-memory.dmp

Filesize
16KB

Download
memory/1100-4-0x0000000000340000-0x0000000000344000-memory.dmp

Filesize
16KB

Download
memory/1508-21-0x0000000000000000-mapping.dmp

Download
memory/1508-22-0x0000000000000000-mapping.dmp

Download
memory/1556-15-0x0000000000418ADF-mapping.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads