5f02d11f87d53b8e02eb1a943c553c969dc80f57bad64fedd842b5607109a141

Analysis

max time kernel
150s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 17:05

Target

EXEPackager/nsFLVPlayer.dat
Size

488B
MD5

4aa45509d7b7ff336a4f3368f4e896a1
SHA1

4aead3b6afb71bc18d8289549887c6b040d9f7cd
SHA256

a07c5b7e4cb2bf7b1f0cfeb21310a1614cad8af8aab114ff8bb02528894d5e43
SHA512

9d4d25795bb2a371c7af8ccdbf51691adbe0016041fe1834aac565a88d83c3c5bfd9ef9b547e4fa390b87b23001f451176094e92e3ced1f8b1b63ef61c3bab3c

Score

3^/10

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 10 IoCs

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\dat_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.dat	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.dat\ = "dat_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\dat_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\dat_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\dat_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\dat_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\dat_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_Classes\Local Settings	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

856 AcroRd32.exe
856 AcroRd32.exe
856 AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1392 wrote to memory of 1336	1392	cmd.exe	rundll32.exe
PID 1392 wrote to memory of 1336	1392	cmd.exe	rundll32.exe
PID 1392 wrote to memory of 1336	1392	cmd.exe	rundll32.exe
PID 1336 wrote to memory of 856	1336	rundll32.exe	AcroRd32.exe
PID 1336 wrote to memory of 856	1336	rundll32.exe	AcroRd32.exe
PID 1336 wrote to memory of 856	1336	rundll32.exe	AcroRd32.exe
PID 1336 wrote to memory of 856	1336	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\EXEPackager\nsFLVPlayer.dat
1⤵
- Suspicious use of WriteProcessMemory
PID:1392

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\EXEPackager\nsFLVPlayer.dat"
3⤵
- Suspicious use of SetWindowsHookEx
PID:856

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

memory/856-81-0x0000000000000000-mapping.dmp

Download
memory/856-82-0x0000000075521000-0x0000000075523000-memory.dmp

Filesize
8KB

Download
memory/1336-76-0x0000000000000000-mapping.dmp

Download
memory/1392-54-0x000007FEFBA81000-0x000007FEFBA83000-memory.dmp

Filesize
8KB

Download