76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3

Analysis

max time kernel
188s
max time network
191s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2022 00:32

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General

Target

76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3.exe
Size

7KB
MD5

37f2e49e529d8df6511a8d4343407100
SHA1

2fc484fb3487ebcaeb9c4d795c3c27f18750c577
SHA256

76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3
SHA512

c68198e420efa503e733b83370112faf844bd1b93c4645416fe1f4c40982c43c68a01af373d053636afd0ee49f6222b827a028bf00dcc3fa2cc49eaf9a461df6
SSDEEP

96:9fjdIUBV4eOGH0f67DSRwHmk4G6l9KazPARNWPsMhf0qWGdQ2cAPuw:BRNMmH0i7THx4fzPAyPrmEPuw

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

Processes:

76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\drivers\\spools.exe \"%1\" %*"	76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3.exe

Drops file in Drivers directory 2 IoCs

Processes:

76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3.exe

description	ioc	process
File created	C:\Windows\SysWOW64\drivers\spools.exe	76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3.exe
File opened for modification	C:\Windows\SysWOW64\drivers\spools.exe	76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Schedule\ImagePath = "C:\\Windows\\system32\\drivers\\spools.exe"	76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3.exe

UPX packed file 1 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4308-132-0x0000000000400000-0x000000000040E000-memory.dmp	upx

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3.exe

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"	76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3.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"	76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe"	76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe"	76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3.exe

Modifies registry class 1 IoCs

Processes:

76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\drivers\\spools.exe \"%1\" %*"	76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3.exe

C:\Users\Admin\AppData\Local\Temp\76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3.exe
"C:\Users\Admin\AppData\Local\Temp\76bc3b82cbdfa869a289b38320a6ef4b15fe7a62c048a55b33362b63dffc46f3.exe"
1⤵
- Modifies system executable filetype association
- Drops file in Drivers directory
- Sets service image path in registry
- Adds Run key to start application
- Modifies registry class
PID:4308

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

T1042

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

memory/4308-132-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

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