56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08

General

Target

56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
Size

3.2MB
MD5

d0f73b094124038ea15f28955e8cee7b
SHA1

0f620bb89faf0cb11ef5f62fe29499f052ef5717
SHA256

56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08
SHA512

d097e8fa9d1361f9fbbf99aeb412339181a25cdc4f63bdaaa2aaef6f4ef711aed259d96a8ff70ccbc0fb243f9d9c79f450ecdea6d3c812e06cc8b78face68d48
SSDEEP

98304:+RiYlIiuxGuUFvFLkffUoLiqYdAT8O/9:+xlIhTU9FLkkoLN

Score

8^/10

bootkit persistence upx

Malware Config

Signatures

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1672-63-0x00000000003F0000-0x00000000003FB000-memory.dmp	upx
behavioral1/memory/1672-64-0x00000000003F0000-0x00000000003FB000-memory.dmp	upx
behavioral1/memory/1672-67-0x00000000003F0000-0x00000000003FB000-memory.dmp	upx

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	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 14 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DOMStorage\check.zerowork.cn\ = "63"	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DOMStorage\zerowork.cn	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe = "11001"	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DOMStorage\zerowork.cn\NumberOfSubdomains = "1"	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DOMStorage\check.zerowork.cn	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DOMStorage	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total\ = "63"	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DOMStorage\zerowork.cn\Total = "63"	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1672	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	1672	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
Token: SeIncBasePriorityPrivilege	1672	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
1672	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
1672	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
1672	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
1672	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
1672	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
1672	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
1672	56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe

C:\Users\Admin\AppData\Local\Temp\56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe
"C:\Users\Admin\AppData\Local\Temp\56c4fa9170f338384391f229b42d8981596f4f8dfc60559a397fc98fb37c3f08.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1672

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

1

T1067

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1672-54-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download
memory/1672-55-0x0000000000400000-0x0000000000CA1000-memory.dmp

Filesize
8.6MB

Download
memory/1672-56-0x0000000000D30000-0x0000000000D7B000-memory.dmp

Filesize
300KB

Download
memory/1672-58-0x0000000000310000-0x0000000000329000-memory.dmp

Filesize
100KB

Download
memory/1672-57-0x0000000000400000-0x0000000000CA1000-memory.dmp

Filesize
8.6MB

Download
memory/1672-59-0x0000000000280000-0x0000000000289000-memory.dmp

Filesize
36KB

Download
memory/1672-60-0x0000000000400000-0x0000000000CA1000-memory.dmp

Filesize
8.6MB

Download
memory/1672-62-0x0000000000400000-0x0000000000CA1000-memory.dmp

Filesize
8.6MB

Download
memory/1672-63-0x00000000003F0000-0x00000000003FB000-memory.dmp

Filesize
44KB

Download
memory/1672-64-0x00000000003F0000-0x00000000003FB000-memory.dmp

Filesize
44KB

Download
memory/1672-65-0x0000000000400000-0x0000000000CA1000-memory.dmp

Filesize
8.6MB

Download
memory/1672-66-0x0000000000D30000-0x0000000000D7B000-memory.dmp

Filesize
300KB

Download
memory/1672-67-0x00000000003F0000-0x00000000003FB000-memory.dmp

Filesize
44KB

Download

Analysis

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