43e47a037425c2efb68f0ba0004f7e851e8c242c5fa7ae6ade0e54fdd81e380a

Analysis

max time kernel
140s
max time network
35s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
21-03-2023 23:12

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General

Target

APT 37 Previous Commits 1/2022년 국방부 부임이사 안내(몽골리아).rar
Size

2.7MB
MD5

afdc59ec36ac950de08169162783accd
SHA1

2efe9332b61c4527363a33301f4ce3ee5b22aa8d
SHA256

4a1ca5a873799887b10a24822bbccec347f18e5694a6ae462275b2bdfe3ee823
SHA512

fe3bce0f8cd75ae96b39964dd2b4f4df2ce6688632ef9c6d996cd2215bbe113d62a227a6b58141dccba436bf2488f04bd3071be499500c6f407c00d1fe959bf2
SSDEEP

49152:O4TV2Hjat4DAj7eody8MAVDbnjHQ53+c23J/pPXsq44M26HQ66Js:O4TVejaqk7c8MuLCD2ZhPXkdTTIs

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 2 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

vlc.exe

pid process

1964 vlc.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

vlc.exe

pid process

1964 vlc.exe
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

vlc.exe

pid process

1964 vlc.exe
1964 vlc.exe
1964 vlc.exe
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

vlc.exe

pid process

1964 vlc.exe
1964 vlc.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

vlc.exe

pid process

1964 vlc.exe

pid	process
1964	vlc.exe

pid	process
1964	vlc.exe

pid	process
1964	vlc.exe
1964	vlc.exe
1964	vlc.exe

pid	process
1964	vlc.exe
1964	vlc.exe

pid	process
1964	vlc.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1648 wrote to memory of 1524	1648	cmd.exe	rundll32.exe
PID 1648 wrote to memory of 1524	1648	cmd.exe	rundll32.exe
PID 1648 wrote to memory of 1524	1648	cmd.exe	rundll32.exe
PID 1524 wrote to memory of 1964	1524	rundll32.exe	vlc.exe
PID 1524 wrote to memory of 1964	1524	rundll32.exe	vlc.exe
PID 1524 wrote to memory of 1964	1524	rundll32.exe	vlc.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\APT 37 Previous Commits 1\2022년 국방부 부임이사 안내(몽골리아).rar"
1⤵
- Suspicious use of WriteProcessMemory
PID:1648

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 1\2022년 국방부 부임이사 안내(몽골리아).rar
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1524

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 1\2022년 국방부 부임이사 안내(몽골리아).rar"
3⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:1964

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/1964-78-0x000000013F0B0000-0x000000013F1A8000-memory.dmp

Filesize
992KB

Download
memory/1964-79-0x000007FEFAC60000-0x000007FEFAC94000-memory.dmp

Filesize
208KB

Download
memory/1964-80-0x000007FEF6AE0000-0x000007FEF6D94000-memory.dmp

Filesize
2.7MB

Download
memory/1964-81-0x000007FEFBAD0000-0x000007FEFBAE8000-memory.dmp

Filesize
96KB

Download
memory/1964-82-0x000007FEFAC40000-0x000007FEFAC57000-memory.dmp

Filesize
92KB

Download
memory/1964-83-0x000007FEFAC20000-0x000007FEFAC31000-memory.dmp

Filesize
68KB

Download
memory/1964-84-0x000007FEF6F30000-0x000007FEF6F47000-memory.dmp

Filesize
92KB

Download
memory/1964-85-0x000007FEF6F10000-0x000007FEF6F21000-memory.dmp

Filesize
68KB

Download
memory/1964-86-0x000007FEF6EF0000-0x000007FEF6F0D000-memory.dmp

Filesize
116KB

Download
memory/1964-87-0x000007FEF6ED0000-0x000007FEF6EE1000-memory.dmp

Filesize
68KB

Download
memory/1964-88-0x000007FEF6750000-0x000007FEF6950000-memory.dmp

Filesize
2.0MB

Download
memory/1964-89-0x000007FEF56A0000-0x000007FEF674B000-memory.dmp

Filesize
16.7MB

Download
memory/1964-90-0x000007FEF6AA0000-0x000007FEF6ADF000-memory.dmp

Filesize
252KB

Download
memory/1964-91-0x000007FEF6A70000-0x000007FEF6A91000-memory.dmp

Filesize
132KB

Download
memory/1964-92-0x000007FEF6A50000-0x000007FEF6A68000-memory.dmp

Filesize
96KB

Download
memory/1964-95-0x000007FEF69B0000-0x000007FEF69C1000-memory.dmp

Filesize
68KB

Download
memory/1964-94-0x000007FEF69D0000-0x000007FEF69E1000-memory.dmp

Filesize
68KB

Download
memory/1964-96-0x000007FEF6990000-0x000007FEF69AB000-memory.dmp

Filesize
108KB

Download
memory/1964-93-0x000007FEF6A30000-0x000007FEF6A41000-memory.dmp

Filesize
68KB

Download
memory/1964-97-0x000007FEF6970000-0x000007FEF6981000-memory.dmp

Filesize
68KB

Download
memory/1964-98-0x000007FEF5680000-0x000007FEF5698000-memory.dmp

Filesize
96KB

Download
memory/1964-99-0x000007FEF5650000-0x000007FEF5680000-memory.dmp

Filesize
192KB

Download
memory/1964-100-0x000007FEF55E0000-0x000007FEF5647000-memory.dmp

Filesize
412KB

Download
memory/1964-101-0x000007FEFB170000-0x000007FEFB1DF000-memory.dmp

Filesize
444KB

Download
memory/1964-102-0x000007FEFB150000-0x000007FEFB161000-memory.dmp

Filesize
68KB

Download
memory/1964-103-0x000007FEF5560000-0x000007FEF55B6000-memory.dmp

Filesize
344KB

Download
memory/1964-104-0x000007FEFB120000-0x000007FEFB148000-memory.dmp

Filesize
160KB

Download
memory/1964-105-0x000007FEF5530000-0x000007FEF5554000-memory.dmp

Filesize
144KB

Download
memory/1964-106-0x000007FEF5330000-0x000007FEF5347000-memory.dmp

Filesize
92KB

Download
memory/1964-107-0x000007FEF5300000-0x000007FEF5323000-memory.dmp

Filesize
140KB

Download
memory/1964-108-0x000007FEF5510000-0x000007FEF5521000-memory.dmp

Filesize
68KB

Download
memory/1964-109-0x000007FEF5420000-0x000007FEF5432000-memory.dmp

Filesize
72KB

Download
memory/1964-110-0x000007FEF53F0000-0x000007FEF5411000-memory.dmp

Filesize
132KB

Download
memory/1964-111-0x000007FEF53D0000-0x000007FEF53E3000-memory.dmp

Filesize
76KB

Download
memory/1964-112-0x000007FEF53B0000-0x000007FEF53C2000-memory.dmp

Filesize
72KB

Download
memory/1964-113-0x000007FEF5120000-0x000007FEF525B000-memory.dmp

Filesize
1.2MB

Download
memory/1964-117-0x000007FEF4310000-0x000007FEF4321000-memory.dmp

Filesize
68KB

Download
memory/1964-116-0x000007FEF4330000-0x000007FEF438C000-memory.dmp

Filesize
368KB

Download
memory/1964-115-0x000007FEF43F0000-0x000007FEF45A2000-memory.dmp

Filesize
1.7MB

Download
memory/1964-114-0x000007FEF4A50000-0x000007FEF4A7C000-memory.dmp

Filesize
176KB

Download
memory/1964-119-0x000007FEF41E0000-0x000007FEF41F2000-memory.dmp

Filesize
72KB

Download
memory/1964-118-0x000007FEF4200000-0x000007FEF4297000-memory.dmp

Filesize
604KB

Download
memory/1964-120-0x000007FEF3FA0000-0x000007FEF41D1000-memory.dmp

Filesize
2.2MB

Download
memory/1964-121-0x000007FEF3C30000-0x000007FEF3D42000-memory.dmp

Filesize
1.1MB

Download
memory/1964-123-0x000007FEF3880000-0x000007FEF38A5000-memory.dmp

Filesize
148KB

Download
memory/1964-122-0x000007FEF3AB0000-0x000007FEF3AE5000-memory.dmp

Filesize
212KB

Download
memory/1964-124-0x000007FEF3A90000-0x000007FEF3AA1000-memory.dmp

Filesize
68KB

Download
memory/1964-127-0x000007FEF39E0000-0x000007FEF39F2000-memory.dmp

Filesize
72KB

Download
memory/1964-129-0x000007FEF3920000-0x000007FEF39BF000-memory.dmp

Filesize
636KB

Download
memory/1964-128-0x000007FEF39C0000-0x000007FEF39D3000-memory.dmp

Filesize
76KB

Download
memory/1964-131-0x000007FEF3770000-0x000007FEF3872000-memory.dmp

Filesize
1.0MB

Download
memory/1964-133-0x000007FEF38C0000-0x000007FEF38D1000-memory.dmp

Filesize
68KB

Download
memory/1964-135-0x000007FEF3730000-0x000007FEF3742000-memory.dmp

Filesize
72KB

Download
memory/1964-134-0x000007FEF3750000-0x000007FEF3761000-memory.dmp

Filesize
68KB

Download
memory/1964-137-0x000007FEF36F0000-0x000007FEF3706000-memory.dmp

Filesize
88KB

Download
memory/1964-136-0x000007FEF3710000-0x000007FEF3728000-memory.dmp

Filesize
96KB

Download
memory/1964-138-0x000007FEF36C0000-0x000007FEF36E9000-memory.dmp

Filesize
164KB

Download
memory/1964-132-0x000007FEF38E0000-0x000007FEF38F1000-memory.dmp

Filesize
68KB

Download
memory/1964-141-0x000007FEF3660000-0x000007FEF3671000-memory.dmp

Filesize
68KB

Download
memory/1964-140-0x000007FEF3680000-0x000007FEF3691000-memory.dmp

Filesize
68KB

Download
memory/1964-139-0x000007FEF36A0000-0x000007FEF36B2000-memory.dmp

Filesize
72KB

Download
memory/1964-130-0x000007FEF3900000-0x000007FEF3911000-memory.dmp

Filesize
68KB

Download
memory/1964-126-0x000007FEF3A00000-0x000007FEF3A11000-memory.dmp

Filesize
68KB

Download
memory/1964-125-0x000007FEF3A20000-0x000007FEF3A81000-memory.dmp

Filesize
388KB

Download