b16ebaec337178a9f4c661d84a9998e453f4b693eab3e3fbc9bb6b957661f3c6

Analysis

max time kernel
139s
max time network
30s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
21-03-2023 23:28

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General

Target

APT 37 Previous Commits 3/LG유플러스_이동통신_202208_이_선.rar
Size

240KB
MD5

8eb56493d984b3c2fa4c2dedb6871dd7
SHA1

bac69d2cb8b1e30b35f9cdb042702f5390230003
SHA256

490f03bcd7f20254c5231a9a2074b656e78863af0ddc3eea71edac0bca01fd4f
SHA512

396f638ee1bfc2f986dd6fd1df16f4e158eff58bbbfe47ca4475e9c4a7733dd3c88b686b8a92ca34052c819092b6df3c68d260d33a1f94b0d75660b13427c718
SSDEEP

3072:OlvuDVQ/v1WhlCs8ETjuwZ//L+1dbd0sioQIf3AIrzqw6FcE36omfQOfINP+:vSdagHd0siodfnrzqTz3ykg

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082
Modifies registry class 1 IoCs

Processes:

rundll32.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_Classes\Local Settings rundll32.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

vlc.exe

pid process

616 vlc.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

vlc.exe

pid process

616 vlc.exe
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

vlc.exe

pid process

616 vlc.exe
616 vlc.exe
616 vlc.exe
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

vlc.exe

pid process

616 vlc.exe
616 vlc.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

vlc.exe

pid process

616 vlc.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_Classes\Local Settings	rundll32.exe

pid	process
616	vlc.exe

pid	process
616	vlc.exe

pid	process
616	vlc.exe
616	vlc.exe
616	vlc.exe

pid	process
616	vlc.exe
616	vlc.exe

pid	process
616	vlc.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2028 wrote to memory of 1696	2028	cmd.exe	rundll32.exe
PID 2028 wrote to memory of 1696	2028	cmd.exe	rundll32.exe
PID 2028 wrote to memory of 1696	2028	cmd.exe	rundll32.exe
PID 1696 wrote to memory of 616	1696	rundll32.exe	vlc.exe
PID 1696 wrote to memory of 616	1696	rundll32.exe	vlc.exe
PID 1696 wrote to memory of 616	1696	rundll32.exe	vlc.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\APT 37 Previous Commits 3\LG유플러스_이동통신_202208_이_선.rar"
1⤵
- Suspicious use of WriteProcessMemory
PID:2028

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\APT 37 Previous Commits 3\LG유플러스_이동통신_202208_이_선.rar
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1696

C:\Program Files\VideoLAN\VLC\vlc.exe
"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\AppData\Local\Temp\APT 37 Previous Commits 3\LG유플러스_이동통신_202208_이_선.rar"
3⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:616

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/616-78-0x000000013F900000-0x000000013F9F8000-memory.dmp

Filesize
992KB

Download
memory/616-79-0x000007FEFACA0000-0x000007FEFACD4000-memory.dmp

Filesize
208KB

Download
memory/616-80-0x000007FEF6300000-0x000007FEF65B4000-memory.dmp

Filesize
2.7MB

Download
memory/616-81-0x000007FEFB2E0000-0x000007FEFB2F8000-memory.dmp

Filesize
96KB

Download
memory/616-82-0x000007FEFAC10000-0x000007FEFAC27000-memory.dmp

Filesize
92KB

Download
memory/616-83-0x000007FEFABF0000-0x000007FEFAC01000-memory.dmp

Filesize
68KB

Download
memory/616-84-0x000007FEFA9E0000-0x000007FEFA9F7000-memory.dmp

Filesize
92KB

Download
memory/616-85-0x000007FEFA9C0000-0x000007FEFA9D1000-memory.dmp

Filesize
68KB

Download
memory/616-86-0x000007FEFA9A0000-0x000007FEFA9BD000-memory.dmp

Filesize
116KB

Download
memory/616-87-0x000007FEFA5D0000-0x000007FEFA5E1000-memory.dmp

Filesize
68KB

Download
memory/616-88-0x000007FEF6060000-0x000007FEF6260000-memory.dmp

Filesize
2.0MB

Download
memory/616-89-0x000007FEF4FB0000-0x000007FEF605B000-memory.dmp

Filesize
16.7MB

Download
memory/616-90-0x000007FEFA590000-0x000007FEFA5CF000-memory.dmp

Filesize
252KB

Download
memory/616-91-0x000007FEFA560000-0x000007FEFA581000-memory.dmp

Filesize
132KB

Download
memory/616-92-0x000007FEFA540000-0x000007FEFA558000-memory.dmp

Filesize
96KB

Download
memory/616-94-0x000007FEF7060000-0x000007FEF7071000-memory.dmp

Filesize
68KB

Download
memory/616-95-0x000007FEF7040000-0x000007FEF7051000-memory.dmp

Filesize
68KB

Download
memory/616-96-0x000007FEF7020000-0x000007FEF703B000-memory.dmp

Filesize
108KB

Download
memory/616-97-0x000007FEF7000000-0x000007FEF7011000-memory.dmp

Filesize
68KB

Download
memory/616-98-0x000007FEF6FE0000-0x000007FEF6FF8000-memory.dmp

Filesize
96KB

Download
memory/616-99-0x000007FEF6740000-0x000007FEF6770000-memory.dmp

Filesize
192KB

Download
memory/616-100-0x000007FEF4F40000-0x000007FEF4FA7000-memory.dmp

Filesize
412KB

Download
memory/616-93-0x000007FEF7080000-0x000007FEF7091000-memory.dmp

Filesize
68KB

Download
memory/616-102-0x000007FEF6720000-0x000007FEF6731000-memory.dmp

Filesize
68KB

Download
memory/616-101-0x000007FEF4ED0000-0x000007FEF4F3F000-memory.dmp

Filesize
444KB

Download
memory/616-103-0x000007FEF4E70000-0x000007FEF4EC6000-memory.dmp

Filesize
344KB

Download
memory/616-104-0x000007FEF66F0000-0x000007FEF6718000-memory.dmp

Filesize
160KB

Download
memory/616-105-0x000007FEF62D0000-0x000007FEF62F4000-memory.dmp

Filesize
144KB

Download
memory/616-106-0x000007FEF4E50000-0x000007FEF4E67000-memory.dmp

Filesize
92KB

Download
memory/616-107-0x000007FEF4E20000-0x000007FEF4E43000-memory.dmp

Filesize
140KB

Download
memory/616-108-0x000007FEF4E00000-0x000007FEF4E11000-memory.dmp

Filesize
68KB

Download
memory/616-109-0x000007FEF4DE0000-0x000007FEF4DF2000-memory.dmp

Filesize
72KB

Download
memory/616-110-0x000007FEF4DB0000-0x000007FEF4DD1000-memory.dmp

Filesize
132KB

Download
memory/616-111-0x000007FEF4D70000-0x000007FEF4D83000-memory.dmp

Filesize
76KB

Download
memory/616-112-0x000007FEF4D50000-0x000007FEF4D62000-memory.dmp

Filesize
72KB

Download
memory/616-113-0x000007FEF4B40000-0x000007FEF4C7B000-memory.dmp

Filesize
1.2MB

Download
memory/616-114-0x000007FEF4A30000-0x000007FEF4A5C000-memory.dmp

Filesize
176KB

Download
memory/616-115-0x000007FEF4870000-0x000007FEF4A22000-memory.dmp

Filesize
1.7MB

Download
memory/616-116-0x000007FEF4AE0000-0x000007FEF4B3C000-memory.dmp

Filesize
368KB

Download
memory/616-117-0x000007FEF4AC0000-0x000007FEF4AD1000-memory.dmp

Filesize
68KB

Download
memory/616-118-0x000007FEF47D0000-0x000007FEF4867000-memory.dmp

Filesize
604KB

Download
memory/616-119-0x000007FEF4AA0000-0x000007FEF4AB2000-memory.dmp

Filesize
72KB

Download
memory/616-120-0x000007FEF44F0000-0x000007FEF4721000-memory.dmp

Filesize
2.2MB

Download
memory/616-121-0x000007FEF4290000-0x000007FEF43A2000-memory.dmp

Filesize
1.1MB

Download
memory/616-122-0x000007FEF4A60000-0x000007FEF4A95000-memory.dmp

Filesize
212KB

Download
memory/616-123-0x000007FEF4260000-0x000007FEF4285000-memory.dmp

Filesize
148KB

Download
memory/616-124-0x000007FEF4240000-0x000007FEF4251000-memory.dmp

Filesize
68KB

Download
memory/616-125-0x000007FEF40D0000-0x000007FEF4131000-memory.dmp

Filesize
388KB

Download
memory/616-126-0x000007FEF40B0000-0x000007FEF40C1000-memory.dmp

Filesize
68KB

Download
memory/616-127-0x000007FEF4090000-0x000007FEF40A2000-memory.dmp

Filesize
72KB

Download
memory/616-128-0x000007FEF4000000-0x000007FEF4013000-memory.dmp

Filesize
76KB

Download
memory/616-129-0x000007FEF3F60000-0x000007FEF3FFF000-memory.dmp

Filesize
636KB

Download
memory/616-130-0x000007FEF3F40000-0x000007FEF3F51000-memory.dmp

Filesize
68KB

Download
memory/616-131-0x000007FEF3E30000-0x000007FEF3F32000-memory.dmp

Filesize
1.0MB

Download
memory/616-132-0x000007FEF3770000-0x000007FEF3781000-memory.dmp

Filesize
68KB

Download
memory/616-133-0x000007FEF3750000-0x000007FEF3761000-memory.dmp

Filesize
68KB

Download
memory/616-134-0x000007FEF3730000-0x000007FEF3741000-memory.dmp

Filesize
68KB

Download
memory/616-135-0x000007FEF3570000-0x000007FEF3582000-memory.dmp

Filesize
72KB

Download
memory/616-136-0x000007FEF3000000-0x000007FEF3018000-memory.dmp

Filesize
96KB

Download
memory/616-137-0x000007FEF2FE0000-0x000007FEF2FF6000-memory.dmp

Filesize
88KB

Download
memory/616-138-0x000007FEF31B0000-0x000007FEF31D9000-memory.dmp

Filesize
164KB

Download
memory/616-139-0x000007FEF3190000-0x000007FEF31A2000-memory.dmp

Filesize
72KB

Download
memory/616-140-0x000007FEF3150000-0x000007FEF3161000-memory.dmp

Filesize
68KB

Download
memory/616-141-0x000007FEF3130000-0x000007FEF3141000-memory.dmp

Filesize
68KB

Download