784b1348a30bfd0dc8bfc44b4db3d3922bd74afa5b71a90dfbd47201151b6309

Analysis

max time kernel
1565s
max time network
1567s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
23-05-2024 00:37

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General

Target

menu.pdb
Size

8.9MB
MD5

241c3dbd2f08832522660bc0c426bc22
SHA1

4dba3784f819f611cf330e423d5625217b391ff3
SHA256

a7d0af06af44099ec3923d10c5ea58be8c3c8f37cf026d1594f4e82a241e9e6b
SHA512

ecd5bcc136e4c7b4ac1a831cd7b57128be8d3e122d5ce632ffc97fc302c4a82103f41bbb8d118b62edf95389edb48be3f4388bfda6ad7ad81707f083d2771fe8
SSDEEP

98304:kiydlSHQXUlV/NZ+8xjDlaboOjXlZ5Awlr3rg+8slkJRm6UlV/NZ+8xjDlaboOj6:hydlSHQhkJRm270

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-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\pdb_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\pdb_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\pdb_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\pdb_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\.pdb	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\.pdb\ = "pdb_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\pdb_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\pdb_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2624 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2624 AcroRd32.exe
2624 AcroRd32.exe

pid	process
2624	AcroRd32.exe

pid	process
2624	AcroRd32.exe
2624	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2180 wrote to memory of 2660	2180	cmd.exe	rundll32.exe
PID 2180 wrote to memory of 2660	2180	cmd.exe	rundll32.exe
PID 2180 wrote to memory of 2660	2180	cmd.exe	rundll32.exe
PID 2660 wrote to memory of 2624	2660	rundll32.exe	AcroRd32.exe
PID 2660 wrote to memory of 2624	2660	rundll32.exe	AcroRd32.exe
PID 2660 wrote to memory of 2624	2660	rundll32.exe	AcroRd32.exe
PID 2660 wrote to memory of 2624	2660	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\menu.pdb
1⤵
- Suspicious use of WriteProcessMemory
PID:2180

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\menu.pdb
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2660

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\menu.pdb"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2624

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
ba0954e4be6be228ca6a4b53923e76bd

SHA1
878bf66fbb40386448564d1cbf06057b350e702a

SHA256
b05e81913261c0c1837fba7e97206ff62b7c4949eaca67df5c3d214f3c970eb5

SHA512
02e039101337feb9c5f5ac01cdc80b7f6b8df52b8fe332a44427f5c7b863bf521e1253e596d68fcd163534d106ed82e5249f1926c717d1cd8bf8fed05daad1f8

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