249bdaa4332b3e1a3a2148d4fd587a42bd48615af556d1c72da51c55bb2ca697

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
29-06-2024 19:02

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General

Target

locales/bg.pak
Size

166KB
MD5

00d012a55a50bba5de8b2fc2e0d163b2
SHA1

89163fa9905876167a0c7d3446bcb0bd30f88ef4
SHA256

bd3a3aacc3cee9864404755eee9542e0f21efbebd4a71e5333d15783d4ce18c9
SHA512

3bd6c774729f3531d316917deb7d8fe977c5bf5a3e85846f061c4af5fb6c45f79d8a3557a47d4569ad52819b3ccab13d386a9f5c1801e25e969e194a956d40a2
SSDEEP

3072:P3504qAG1u0PSFq8HyyW4nSpbBqjnUmIKW3RZzrzCLy8Asgiamd3vNgT72eM+sUS:P35vqpTPaTo4njmZzrmLy8ADINW72eMz

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
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2664 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2664 AcroRd32.exe
2664 AcroRd32.exe

pid	process
2664	AcroRd32.exe

pid	process
2664	AcroRd32.exe
2664	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2552 wrote to memory of 2876	2552	cmd.exe	rundll32.exe
PID 2552 wrote to memory of 2876	2552	cmd.exe	rundll32.exe
PID 2552 wrote to memory of 2876	2552	cmd.exe	rundll32.exe
PID 2876 wrote to memory of 2664	2876	rundll32.exe	AcroRd32.exe
PID 2876 wrote to memory of 2664	2876	rundll32.exe	AcroRd32.exe
PID 2876 wrote to memory of 2664	2876	rundll32.exe	AcroRd32.exe
PID 2876 wrote to memory of 2664	2876	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\bg.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2552

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\bg.pak
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2876

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\locales\bg.pak"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2664

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
9a54be917db3998d1381b4715056015b

SHA1
31f357858123105db3351cd82c1c4f15d0c1eecb

SHA256
20f5eccbabd4a540c0666c6ab5b5c9b5c89c7ba46c96517917a8430f5b9227d8

SHA512
286e826a80dfbbfb36ea2ab9072a1af48b85e5d2958cefaa4685847c99fd04b809fe66099d2579a521fba53f3dd0cba5e4141bed88885dbb33525005820e16bb

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