f01131154067427a2454fe0ad48e7a26c51e1d9e34ecbcfc7fac53d3a8c6075c

Analysis

max time kernel
135s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 20:43

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General

Target

3c24e95ea8e6d2eaf686df746dbdf29b.exe
Size

13KB
MD5

3c24e95ea8e6d2eaf686df746dbdf29b
SHA1

289bcd2b7a85117ef15a2b2673623c76d39fa49b
SHA256

f01131154067427a2454fe0ad48e7a26c51e1d9e34ecbcfc7fac53d3a8c6075c
SHA512

30d0729c1edb15144d7b55c10e02984e14ad9398e83e3620f47611d168c5da671c7c4825e5748fae7924275e212744af5819422b587ce532222fc19513d2741e
SSDEEP

192:G0WPLOEYJFGY+fzWfzjwLUoeJ/RBkn30G90xHRc7o3TccU+TY0F+UtYtXae4W0n:G0WKDfg5e5RA30GyxHRio3gcUsHB9W0n

Score

7^/10

persistence upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0008000000023243-5.dat	acprotect

Registers COM server for autorun 1 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000_Classes\WOW6432Node\CLSID\{c371ef48-69a9-45c3-a394-1c39c5138dac}\InProcServer32	3c24e95ea8e6d2eaf686df746dbdf29b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000_Classes\WOW6432Node\CLSID\{c371ef48-69a9-45c3-a394-1c39c5138dac}\InProcServer32\ = "C:\\Windows\\SysWow64\\mst120.dll"	3c24e95ea8e6d2eaf686df746dbdf29b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000_Classes\WOW6432Node\CLSID\{c371ef48-69a9-45c3-a394-1c39c5138dac}\InProcServer32\ThreadingModel = "Apartment"	3c24e95ea8e6d2eaf686df746dbdf29b.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3716-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3716-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023243-5.dat	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\mst120.dll	3c24e95ea8e6d2eaf686df746dbdf29b.exe
File opened for modification	C:\Windows\SysWOW64\mst120.dll	3c24e95ea8e6d2eaf686df746dbdf29b.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000_Classes\WOW6432Node	3c24e95ea8e6d2eaf686df746dbdf29b.exe
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000_Classes\WOW6432Node\CLSID\{c371ef48-69a9-45c3-a394-1c39c5138dac}	3c24e95ea8e6d2eaf686df746dbdf29b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000_Classes\WOW6432Node\CLSID\{c371ef48-69a9-45c3-a394-1c39c5138dac}\InProcServer32\ = "C:\\Windows\\SysWow64\\mst120.dll"	3c24e95ea8e6d2eaf686df746dbdf29b.exe
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000_Classes\PROTOCOLS\Filter\text/html	3c24e95ea8e6d2eaf686df746dbdf29b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000_Classes\PROTOCOLS\Filter\text/html\ = "Microsoft Default HTML MIME Filter"	3c24e95ea8e6d2eaf686df746dbdf29b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000_Classes\PROTOCOLS\Filter\text/html\CLSID = "{c371ef48-69a9-45c3-a394-1c39c5138dac}"	3c24e95ea8e6d2eaf686df746dbdf29b.exe
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000_Classes\WOW6432Node\CLSID\{c371ef48-69a9-45c3-a394-1c39c5138dac}\InProcServer32	3c24e95ea8e6d2eaf686df746dbdf29b.exe
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000_Classes\PROTOCOLS	3c24e95ea8e6d2eaf686df746dbdf29b.exe
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000_Classes\PROTOCOLS\Filter	3c24e95ea8e6d2eaf686df746dbdf29b.exe
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000_Classes\WOW6432Node\CLSID	3c24e95ea8e6d2eaf686df746dbdf29b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000_Classes\WOW6432Node\CLSID\{c371ef48-69a9-45c3-a394-1c39c5138dac}\InProcServer32\ThreadingModel = "Apartment"	3c24e95ea8e6d2eaf686df746dbdf29b.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3716	3c24e95ea8e6d2eaf686df746dbdf29b.exe
3716	3c24e95ea8e6d2eaf686df746dbdf29b.exe

C:\Users\Admin\AppData\Local\Temp\3c24e95ea8e6d2eaf686df746dbdf29b.exe
"C:\Users\Admin\AppData\Local\Temp\3c24e95ea8e6d2eaf686df746dbdf29b.exe"
1⤵
- Registers COM server for autorun
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:3716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\5832.tmp

Filesize
8KB

MD5
3c1ac45ce23953859f931e048514f468

SHA1
e35d4b910c732ea3bc741a1dd7556cfb23c229c0

SHA256
052a5cdf65cb3cc8dcee34b47398de2b9cd344730264c4eb8190e3d59e6ded6a

SHA512
04f1d7bdac21a848931cf767fe6bffcbfcbc4f842d228f122dd94e0e66bc2b0af8f867b6ab7b0b57a8f96d515202dbe83cfe3a75e042fc1169a386882763c9ce

Download Submit
memory/3716-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3716-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download