f37c0297f54bc509b60046fa825ec4f800a001efc2922525fb5a20e7da96dc0d

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/06/2024, 18:12

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General

Target

Lossless Scaling 2.9/Shaders/RCAS_16.cso
Size

8KB
MD5

2a6a2fc3e68550634a0af1ea12454ceb
SHA1

25358e5f48840e96eba9ef566140026da66af1b0
SHA256

dde25866ca56b1e52846da7566604a2cc4e1df878ce085c66218f56d6b8dac2c
SHA512

4a1e75b109f07b430d9827db4863ba87f7b2643fbf16e0a7788a7fcbaa766139950fc8605e5178ee21ba61a0dc5cebce52df80f7f9bba50c9be6115f94f4fd66
SSDEEP

192:hqG6M4QzRv+vNvovGZWeWDeWoeWx0vY/khJpvgZqhax4Rv+vNvHINZWeWDeWoeWX:hqE4QzRv+vNvovGZWeWDeWoeWx0vY/k5

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 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.cso	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\cso_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\cso_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\cso_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\cso_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\cso_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.cso\ = "cso_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\cso_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2576	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2576	AcroRd32.exe
2576	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1460 wrote to memory of 2532	1460	cmd.exe	29
PID 1460 wrote to memory of 2532	1460	cmd.exe	29
PID 1460 wrote to memory of 2532	1460	cmd.exe	29
PID 2532 wrote to memory of 2576	2532	rundll32.exe	30
PID 2532 wrote to memory of 2576	2532	rundll32.exe	30
PID 2532 wrote to memory of 2576	2532	rundll32.exe	30
PID 2532 wrote to memory of 2576	2532	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Lossless Scaling 2.9\Shaders\RCAS_16.cso"
1⤵
- Suspicious use of WriteProcessMemory
PID:1460
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Lossless Scaling 2.9\Shaders\RCAS_16.cso
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2532
- - 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\Lossless Scaling 2.9\Shaders\RCAS_16.cso"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
3KB

MD5
a64deea3b945daff80e80638d7afb566

SHA1
cb595e4cd9409bbf46845ffade94d1f394e6c93c

SHA256
ec3a16cabd9733ad8b900c9515f11ccc11de8a852e15566c84ade1acae9de902

SHA512
6bf380e16cae3eb7703285c57aa0f6664cc2f185eda4edf2a2e905ab0e7ca440f759c4ca7cac246ae841c7ccc9af783946caff5de402ac11de8bf1ed7f2d4b7c

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