c32efac42faf4b9878fb8917c5e71d89ff40de580c4f52f62e11c6cfab55167f

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
20-08-2024 12:04

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General

Target

gmpopenh264.info
Size

116B
MD5

2a461e9eb87fd1955cea740a3444ee7a
SHA1

b10755914c713f5a4677494dbe8a686ed458c3c5
SHA256

4107f76ba1d9424555f4e8ea0acef69357dfff89dfa5f0ec72aa4f2d489b17bc
SHA512

34f73f7bf69d7674907f190f257516e3956f825e35a2f03d58201a5a630310b45df393f2b39669f9369d1ac990505a4b6849a0d34e8c136e1402143b6cedf2d3

Score

3^/10

discovery

Malware Config

Signatures

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

System Information Discovery
T1082
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
discovery

System Language Discovery
T1614.001

Processes:

AcroRd32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AcroRd32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\info_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\info_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\info_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\.info	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\info_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\info_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\.info\ = "info_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000_CLASSES\info_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2596 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2596 AcroRd32.exe
2596 AcroRd32.exe

pid	process
2596	AcroRd32.exe

pid	process
2596	AcroRd32.exe
2596	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2412 wrote to memory of 2216	2412	cmd.exe	rundll32.exe
PID 2412 wrote to memory of 2216	2412	cmd.exe	rundll32.exe
PID 2412 wrote to memory of 2216	2412	cmd.exe	rundll32.exe
PID 2216 wrote to memory of 2596	2216	rundll32.exe	AcroRd32.exe
PID 2216 wrote to memory of 2596	2216	rundll32.exe	AcroRd32.exe
PID 2216 wrote to memory of 2596	2216	rundll32.exe	AcroRd32.exe
PID 2216 wrote to memory of 2596	2216	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:2412

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:2216

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⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2596

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

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

MD5
9b899e5180012fa22c751f28f009f89e

SHA1
b79e81d9b3e0ee8e8b2357d245a0a344914cf652

SHA256
0af79f70f201720084cd3b1c4e599ca40be51931ad93722be7701592ab780d44

SHA512
1bb45535536fc21d8cc9be034c108ac827b427f9224927da577ccefca097e89599d48022b141fb7f4ae2e6713e46b5a7589ea1ebf26ba617459ac823273b34aa

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