b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606

General

Target

b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
Size

366KB
MD5

81d970b5bbab54c6255e9b662a719ca1
SHA1

d1dd3471c118b552977e294ea78fde53d1895f37
SHA256

b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606
SHA512

6781878ea5ca80e28fb8cbcb5a3f485c71522671ee18c11ad3db43c3d33f6ae386f113cf1e7941959e00dba6912f166460c0086db77358626e944b74e2bf4fdf
SSDEEP

6144:lvI8loK0zat8GzwzkIXfYnPYzCvoK0zat8GzwzkIXfYnPYfc0k:lQ8qK0qjIQnAzRK0qjIQnAfcl

Score

10^/10

persistence upx

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\drivers\\spools.exe \"%1\" %*"	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe

Drops file in Drivers directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\spools.exe	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened for modification	C:\Windows\SysWOW64\drivers\spools.exe	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Schedule\ImagePath = "C:\\Windows\\system32\\drivers\\spools.exe"	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1256-135-0x0000000000400000-0x0000000001564000-memory.dmp	upx
behavioral2/memory/1256-138-0x0000000000400000-0x0000000001564000-memory.dmp	upx

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe"	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe"	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe"	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe"	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe

Enumerates connected drives 3 TTPs 20 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\M:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\O:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\Q:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\J:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\G:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\H:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\L:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\N:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\R:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\S:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\U:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\F:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\W:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\V:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\P:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\X:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\I:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\K:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\T:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
File opened (read-only)	\??\E:	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe

Modifies registry class 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\drivers\\spools.exe \"%1\" %*"	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1256 wrote to memory of 1620	1256	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe	80
PID 1256 wrote to memory of 1620	1256	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe	80
PID 1256 wrote to memory of 1620	1256	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe	80
PID 1256 wrote to memory of 3968	1256	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe	82
PID 1256 wrote to memory of 3968	1256	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe	82
PID 1256 wrote to memory of 3968	1256	b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe	82

C:\Users\Admin\AppData\Local\Temp\b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe
"C:\Users\Admin\AppData\Local\Temp\b9e79dbf5d2654ea53bd21808daf4eed6b469240459dc4cdd7207c9614243606.exe"
1⤵
- Modifies system executable filetype association
- Drops file in Drivers directory
- Sets service image path in registry
- Adds Run key to start application
- Enumerates connected drives
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1256
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c rmdir /S /Q "C:\Users\Admin\Cookies\"
  2⤵
  PID:1620
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c rmdir /S /Q "C:\Users\Admin\Application Data\Macromedia\Flash Player\"
  2⤵
  PID:3968

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

1

T1042

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1256-135-0x0000000000400000-0x0000000001564000-memory.dmp

Filesize
17.4MB

Download
memory/1256-138-0x0000000000400000-0x0000000001564000-memory.dmp

Filesize
17.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads