a9f4281f82b3579581c389e8583dc9f477c7fd0e20c9dfc91a2e611e21e3407e

Analysis

max time kernel
117s
max time network
120s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
01-09-2023 23:16

Target

gmpopenh264.info
Size

116B
MD5

3d33cdc0b3d281e67dd52e14435dd04f
SHA1

4db88689282fd4f9e9e6ab95fcbb23df6e6485db
SHA256

f526e9f98841d987606efeaff7f3e017ba9fd516c4be83890c7f9a093ea4c47b
SHA512

a4a96743332cc8ef0f86bc2e6122618bfc75ed46781dadbac9e580cd73df89e74738638a2cccb4caa4cbbf393d771d7f2c73f825737cdb247362450a0d4a4bc1

Score

3^/10

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000_CLASSES\info_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000_CLASSES\info_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000_CLASSES\.info\ = "info_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000_CLASSES\info_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000_CLASSES\.info	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000_CLASSES\info_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000_CLASSES\info_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000_CLASSES\info_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2916 AcroRd32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

2916 AcroRd32.exe
2916 AcroRd32.exe
2916 AcroRd32.exe

pid	process
2916	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2436 wrote to memory of 2052	2436	cmd.exe	rundll32.exe
PID 2436 wrote to memory of 2052	2436	cmd.exe	rundll32.exe
PID 2436 wrote to memory of 2052	2436	cmd.exe	rundll32.exe
PID 2052 wrote to memory of 2916	2052	rundll32.exe	AcroRd32.exe
PID 2052 wrote to memory of 2916	2052	rundll32.exe	AcroRd32.exe
PID 2052 wrote to memory of 2916	2052	rundll32.exe	AcroRd32.exe
PID 2052 wrote to memory of 2916	2052	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\gmpopenh264.info
1⤵
- Suspicious use of WriteProcessMemory
PID:2436
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\gmpopenh264.info
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2052
- - 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\gmpopenh264.info"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2916

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
735104a7d0a42924859500e0b4ad89e3

SHA1
cef3942eee4e419e273d35316feacb8f21dcf579

SHA256
04729abc79fba5716eb8725ffab165668894bf04071be8e24bdb147fb64ce189

SHA512
d478ffefe92ab4903be30def3b35cdc9775b4caa31b44aff6b406d25082ee3e907ad0212bea5dd091fd618f805a7098591333e74daefa5069652788245074612

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