2c341e9ae196b1bcb137a43be29251e93561f9d578b08d2863529585039e885b

Analysis

max time kernel
28s
max time network
31s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
02-03-2023 23:01

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General

Target

HFlashPlayer.exe
Size

33KB
MD5

6c52eb6343505125e91b788d603c7a39
SHA1

7112987259eb367d016e911a2d0afc94c31a0fcf
SHA256

05d59d0257868942f418f826695cfb3907ea0bc27df9885657526c376b8ec03f
SHA512

227b1ace54100864cb0bdcf58fe7e9edcf45c1d45048729383ec3e887f729c80422da289ea05a8eaaa048e2c542088012609aaed53dd5d345a4f11432a5e0cb8
SSDEEP

768:TPprSjI6nXqIpQ9ka3JK6nXqIpQ9kalJy:TxX0XqIi3E0XqIilM

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

Processes:

HFlashPlayer.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\hflash\shell\open	HFlashPlayer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\hflash\shell\open\command	HFlashPlayer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\hflash	HFlashPlayer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\hflash\URL Protocol	HFlashPlayer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\hflash\ = "URL:hflash Protocol"	HFlashPlayer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\hflash\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\HFlashPlayer.exe,1"	HFlashPlayer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\hflash\shell	HFlashPlayer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\hflash\DefaultIcon	HFlashPlayer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\hflash\shell\open\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\HFlashPlayer.exe %1"	HFlashPlayer.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

HFlashPlayer.exe

description	pid	process	target process
PID 1992 wrote to memory of 572	1992	HFlashPlayer.exe	HFlashPlayer.exe
PID 1992 wrote to memory of 572	1992	HFlashPlayer.exe	HFlashPlayer.exe
PID 1992 wrote to memory of 572	1992	HFlashPlayer.exe	HFlashPlayer.exe

C:\Users\Admin\AppData\Local\Temp\HFlashPlayer.exe
"C:\Users\Admin\AppData\Local\Temp\HFlashPlayer.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1992

C:\Users\Admin\AppData\Local\Temp\HFlashPlayer.exe
"C:\Users\Admin\AppData\Local\Temp\HFlashPlayer.exe" --register
2⤵
- Modifies registry class
PID:572

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

Replay Monitor

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Downloads

memory/572-56-0x000000001AD90000-0x000000001AE10000-memory.dmp

Filesize
512KB

Download
memory/572-57-0x000000001AD96000-0x000000001ADCD000-memory.dmp

Filesize
220KB

Download
memory/1992-54-0x0000000000EA0000-0x0000000000EAE000-memory.dmp

Filesize
56KB

Download
memory/1992-55-0x000000001B200000-0x000000001B280000-memory.dmp

Filesize
512KB

Download