79c70132d8af494d0debc352db407d99b5c8c83b4484946b8a10be432e8f80b1

Resubmissions

11-06-2023 01:19

230611-bpmdtsgh9z 7

11-06-2023 01:17

230611-bnn62agb96 7

Analysis

max time kernel
150s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
11-06-2023 01:19

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General

Target

fssd_anchors_v5.pb
Size

144B
MD5

3dbe45f006222c709ac428150c2b5d02
SHA1

dee800d5c38917bd546fc3f629ea47c0d641c3a5
SHA256

5390cab6b491eb3274b7acaa68e3bcb623eb2c7f9fccde1c97a858befbae110a
SHA512

74748373d46b26ca5a0cd40297990bf857c7878c701c79713da42f9bcb9ac78c93f969df91aa0e2a4940ff47f2955d2106019b9333b8d763b522405ebf458cda

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 10 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\pb_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\pb_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\.pb	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\.pb\ = "pb_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\pb_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\pb_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\pb_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\pb_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

1188 AcroRd32.exe
1188 AcroRd32.exe
1188 AcroRd32.exe

pid	process
1188	AcroRd32.exe
1188	AcroRd32.exe
1188	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1628 wrote to memory of 1708	1628	cmd.exe	rundll32.exe
PID 1628 wrote to memory of 1708	1628	cmd.exe	rundll32.exe
PID 1628 wrote to memory of 1708	1628	cmd.exe	rundll32.exe
PID 1708 wrote to memory of 1188	1708	rundll32.exe	AcroRd32.exe
PID 1708 wrote to memory of 1188	1708	rundll32.exe	AcroRd32.exe
PID 1708 wrote to memory of 1188	1708	rundll32.exe	AcroRd32.exe
PID 1708 wrote to memory of 1188	1708	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\fssd_anchors_v5.pb
1⤵
- Suspicious use of WriteProcessMemory
PID:1628

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\fssd_anchors_v5.pb
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1708

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\fssd_anchors_v5.pb"
3⤵
- Suspicious use of SetWindowsHookEx
PID:1188

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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