1485507e6b61175e2ea04d4866ee932620251b5ce895d78a959b7c4c5a2de18d

Resubmissions

07-01-2025 19:22

250107-x3kcaavmb1 10

07-01-2025 07:44

250107-jk35sa1mex 10

Analysis

max time kernel
146s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 07:44

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General

Target

css/goto.exe
Size

2.6MB
MD5

5d994ed0be59ab5f2f0242706b8b3b55
SHA1

b7787d1050691e9dbc5ef6dadc80c36761ae9697
SHA256

74533489c6609b07b00e578d98af29dd6250ddd800e5ecf5743cd9af2e2f24f3
SHA512

86c9e160b7b9015c790254857526aa554a020888383638eb4787a4f700b299cd16e26c08e4dac823be8832274eb3bc74421932e9bb880e44062053fc49f1de27
SSDEEP

49152:dJp9NvSqm1wFE5eBe0/4tmsHfK99IvS0mmvQDTGJt0P:AqsevwIN9Wn0

Score

6^/10

bootkit persistence

Malware Config

Signatures

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

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	goto.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2396	goto.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2396	goto.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2396	goto.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2396	2524	goto.exe	31
PID 2524 wrote to memory of 2396	2524	goto.exe	31
PID 2524 wrote to memory of 2396	2524	goto.exe	31

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	goto.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\SoftwareSASGeneration = "1"	goto.exe

C:\Users\Admin\AppData\Local\Temp\css\goto.exe
"C:\Users\Admin\AppData\Local\Temp\css\goto.exe"
1⤵
- System policy modification
PID:2528

C:\Users\Admin\AppData\Local\Temp\css\goto.exe
"C:\Users\Admin\AppData\Local\Temp\css\goto.exe" service
1⤵
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Users\Admin\AppData\Local\Temp\css\goto.exe
  "C:\Users\Admin\AppData\Local\Temp\css\goto.exe" Global\GotoHTTP_1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2396

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\css\gotohttp.ini

Filesize
74B

MD5
4d93c6c5ad3adfcfa6103c6538d4df5d

SHA1
206de1901a824c7dca668bfc09187a875115ed5b

SHA256
dce530b2e9c60b681280f6623af320de4b31812d3e5de39203c6234d021dd787

SHA512
34a7f28ce28aeb27227b0f851a94cc7ba3317b5bc7927970cb405833ed6d0cdbb2678606c00ecaf00579bf6471986d169dcdea0b2788a4f9cbf5a1b9304bb192

Download Submit
memory/2396-0-0x00000000000E0000-0x00000000000E1000-memory.dmp

Filesize
4KB

Download
memory/2396-2-0x00000000000E0000-0x00000000000E1000-memory.dmp

Filesize
4KB

Download