f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db

General

Target

f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
Size

517KB
MD5

a3268d6e62b2ea92eff6f68878d3e7e1
SHA1

4f6e37134febc107839c9272f56a3e3bc2ab0782
SHA256

f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db
SHA512

a992575ac6f5caf5154f0e436f41dce665455195142c58617c401f7afe01ae6ee00e8ddc3b1d5763a8099513d30e95c461ee08a22cde2ccc2e1be970f8fc5310
SSDEEP

12288:zXsVTt9r7V7qUu3hgemcwAWBL0/WtfD+of:rsVTt9rR03akyBtSof

Score

9^/10

bootkit persistence

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000b0000000122ef-55.dat	acprotect

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe

Loads dropped DLL 1 IoCs

pid	Process
2028	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe

Enumerates connected drives 3 TTPs 22 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)	\??\F:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\G:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\H:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\Z:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\W:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\X:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\L:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\M:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\O:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\P:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\Q:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\S:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\Y:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\I:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\J:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\K:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\N:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\R:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\E:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\T:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\U:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File opened (read-only)	\??\V:	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\hotline.log	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File created	C:\Windows\SysWOW64\Hotline_log.log	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
File created	C:\Windows\SysWOW64\hotline.dat	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\HotLineClient_11272022_0917PM.txt	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks SCSI registry key(s) 3 TTPs 4 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_Dell&Prod_THINAIR_DISK	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2028	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2028	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
2028	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
2028	f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe

C:\Users\Admin\AppData\Local\Temp\f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe
"C:\Users\Admin\AppData\Local\Temp\f6119b096eb08a1d383692337094dbd7ca54f0a537b6eaed84a889f34f78a2db.exe"
1⤵
- Checks BIOS information in registry
- Loads dropped DLL
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Drops file in System32 directory
- Drops file in Windows directory
- Checks SCSI registry key(s)
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2028

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

1

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

4

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\dykF420.tmp

Filesize
172KB

MD5
685f1cbd4af30a1d0c25f252d399a666

SHA1
6a1b978f5e6150b88c8634146f1406ed97d2f134

SHA256
0e478c95a7a07570a69e6061e7c1da9001bccad9cc454f2ed4da58824a13e0f4

SHA512
6555ad6b4f4f26105ca8aad64501d74519a3e091f559b4b563d6ffb20a2ddfcde65e4fe94971a9bc65e86db577f2548ca00f9920d341c8ea808b04c0947d61d9

Download Submit
memory/2028-54-0x0000000075A31000-0x0000000075A33000-memory.dmp

Filesize
8KB

Download
memory/2028-57-0x0000000000360000-0x00000000003D3000-memory.dmp

Filesize
460KB

Download
memory/2028-56-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/2028-58-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/2028-59-0x0000000000360000-0x00000000003D3000-memory.dmp

Filesize
460KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads