2c341e9ae196b1bcb137a43be29251e93561f9d578b08d2863529585039e885b

Analysis

max time kernel
95s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-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

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

HFlashPlayer.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation	HFlashPlayer.exe

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

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

HFlashPlayer.exe

description	pid	process	target process
PID 1492 wrote to memory of 532	1492	HFlashPlayer.exe	HFlashPlayer.exe
PID 1492 wrote to memory of 532	1492	HFlashPlayer.exe	HFlashPlayer.exe

C:\Users\Admin\AppData\Local\Temp\HFlashPlayer.exe
"C:\Users\Admin\AppData\Local\Temp\HFlashPlayer.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1492

C:\Users\Admin\AppData\Local\Temp\HFlashPlayer.exe
"C:\Users\Admin\AppData\Local\Temp\HFlashPlayer.exe" --register
2⤵
- Modifies registry class
PID:532

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\HFlashPlayer.exe.log
Filesize
1KB

MD5
baf55b95da4a601229647f25dad12878

SHA1
abc16954ebfd213733c4493fc1910164d825cac8

SHA256
ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

SHA512
24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

Download Submit
memory/532-136-0x0000000002DD0000-0x0000000002DE0000-memory.dmp

Filesize
64KB

Download
memory/1492-133-0x0000000000C90000-0x0000000000C9E000-memory.dmp

Filesize
56KB

Download
memory/1492-134-0x000000001C660000-0x000000001C670000-memory.dmp

Filesize
64KB

Download