c911fc796b9bf671e9d239a637e14f44f55cf8617e7a76bbbfdde77d89152faa

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
13-06-2024 13:44

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General

Target

Scratchpad.bin
Size

16KB
MD5

ce338fe6899778aacfc28414f2d9498b
SHA1

897256b6709e1a4da9daba92b6bde39ccfccd8c1
SHA256

4fe7b59af6de3b665b67788cc2f99892ab827efae3a467342b3bb4e3bc8e5bfe
SHA512

6eb7f16cf7afcabe9bdea88bdab0469a7937eb715ada9dfd8f428d9d38d86133945f5f2f2688ddd96062223a39b5d47f07afc3c48d9db1d5ee3f41c8d274dccf
SSDEEP

3::

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

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.bin	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\bin_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\bin_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\bin_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\bin_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\bin_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\bin_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.bin\ = "bin_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2152 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2152 AcroRd32.exe
2152 AcroRd32.exe

pid	process
2152	AcroRd32.exe

pid	process
2152	AcroRd32.exe
2152	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2052 wrote to memory of 2664	2052	cmd.exe	rundll32.exe
PID 2052 wrote to memory of 2664	2052	cmd.exe	rundll32.exe
PID 2052 wrote to memory of 2664	2052	cmd.exe	rundll32.exe
PID 2664 wrote to memory of 2152	2664	rundll32.exe	AcroRd32.exe
PID 2664 wrote to memory of 2152	2664	rundll32.exe	AcroRd32.exe
PID 2664 wrote to memory of 2152	2664	rundll32.exe	AcroRd32.exe
PID 2664 wrote to memory of 2152	2664	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Scratchpad.bin
1⤵
- Suspicious use of WriteProcessMemory
PID:2052

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Scratchpad.bin
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2664

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\Scratchpad.bin"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2152

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
251e13ca8cb0d5f596897f49ecbee32e

SHA1
4ffa27164c66869bdb6020f91f23188473e7b89c

SHA256
111692021f617d4f05f34226e3ef961a171694c27b84e6110ffcb51b795022e3

SHA512
2867855bf32065d7b2a43b789ad4cbff374e5ed5c9d7c2d36e22d4aaa2694490ae0888458692254c332ba5278df1b78acd67b68b88af1c3d2ff236931da6bfbe

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