43e47a037425c2efb68f0ba0004f7e851e8c242c5fa7ae6ade0e54fdd81e380a

Analysis

max time kernel
139s
max time network
28s
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 1/20220913.rar
Size

371KB
MD5

5c67c9266e4267d1bf0862bf2c7bd2a5
SHA1

494602ff78b1d034c9f8246a69617da7164050a2
SHA256

ae8cb9b2a65efb15e0aeaa9327a77a90425d86154f24305943f49eb28eac8fd5
SHA512

5661e2a4db660bc4b5ae0e9e9b26b1eb001ed55d7b704e6879c7bdac4a3a6fb7b3fb09cb49614954e18ffe70c7b58a85dd597c92ed1d17ca2a97ff26a77ea2de
SSDEEP

6144:pcjXt6bRJ3dCmK0po5vSZEdG1gt66gmnpNZvBIhGuBvv14cic78IAN+N39Hh5+rJ:pc8FvCmzm5vSIUc6rMDBIp34cPu+de0c

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-1-5-21-3430344531-3702557399-3004411149-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

vlc.exe

pid process

684 vlc.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

vlc.exe

pid process

684 vlc.exe
Suspicious use of FindShellTrayWindow 8 IoCs

Processes:

vlc.exe

pid process

684 vlc.exe
684 vlc.exe
684 vlc.exe
684 vlc.exe
684 vlc.exe
684 vlc.exe
684 vlc.exe
684 vlc.exe
Suspicious use of SendNotifyMessage 7 IoCs

Processes:

vlc.exe

pid process

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

Processes:

vlc.exe

pid process

684 vlc.exe

pid	process
684	vlc.exe

pid	process
684	vlc.exe

pid	process
684	vlc.exe
684	vlc.exe
684	vlc.exe
684	vlc.exe
684	vlc.exe
684	vlc.exe
684	vlc.exe
684	vlc.exe

pid	process
684	vlc.exe
684	vlc.exe
684	vlc.exe
684	vlc.exe
684	vlc.exe
684	vlc.exe
684	vlc.exe

pid	process
684	vlc.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1636 wrote to memory of 472	1636	cmd.exe	rundll32.exe
PID 1636 wrote to memory of 472	1636	cmd.exe	rundll32.exe
PID 1636 wrote to memory of 472	1636	cmd.exe	rundll32.exe
PID 472 wrote to memory of 684	472	rundll32.exe	vlc.exe
PID 472 wrote to memory of 684	472	rundll32.exe	vlc.exe
PID 472 wrote to memory of 684	472	rundll32.exe	vlc.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\APT 37 Previous Commits 1\20220913.rar"
1⤵
- Suspicious use of WriteProcessMemory
PID:1636

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\20220913.rar
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:472

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\20220913.rar"
3⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:684

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/684-84-0x000007FEFAB90000-0x000007FEFABC4000-memory.dmp

Filesize
208KB

Download
memory/684-83-0x000000013F4A0000-0x000000013F598000-memory.dmp

Filesize
992KB

Download
memory/684-85-0x000007FEF6280000-0x000007FEF6534000-memory.dmp

Filesize
2.7MB

Download
memory/684-86-0x000007FEFB0A0000-0x000007FEFB0B8000-memory.dmp

Filesize
96KB

Download
memory/684-87-0x000007FEFAB10000-0x000007FEFAB27000-memory.dmp

Filesize
92KB

Download
memory/684-88-0x000007FEFAAF0000-0x000007FEFAB01000-memory.dmp

Filesize
68KB

Download
memory/684-89-0x000007FEFAA70000-0x000007FEFAA87000-memory.dmp

Filesize
92KB

Download
memory/684-90-0x000007FEFAA50000-0x000007FEFAA61000-memory.dmp

Filesize
68KB

Download
memory/684-91-0x000007FEFAA30000-0x000007FEFAA4D000-memory.dmp

Filesize
116KB

Download
memory/684-92-0x000007FEFA8B0000-0x000007FEFA8C1000-memory.dmp

Filesize
68KB

Download
memory/684-93-0x000007FEF4CB0000-0x000007FEF5D5B000-memory.dmp

Filesize
16.7MB

Download
memory/684-94-0x000007FEF4970000-0x000007FEF4B70000-memory.dmp

Filesize
2.0MB

Download
memory/684-95-0x000007FEFA850000-0x000007FEFA88F000-memory.dmp

Filesize
252KB

Download
memory/684-96-0x000007FEF6C50000-0x000007FEF6C71000-memory.dmp

Filesize
132KB

Download
memory/684-97-0x000007FEF7210000-0x000007FEF7228000-memory.dmp

Filesize
96KB

Download
memory/684-98-0x000007FEF66D0000-0x000007FEF66E1000-memory.dmp

Filesize
68KB

Download
memory/684-99-0x000007FEF66B0000-0x000007FEF66C1000-memory.dmp

Filesize
68KB

Download
memory/684-100-0x000007FEF6690000-0x000007FEF66A1000-memory.dmp

Filesize
68KB

Download
memory/684-101-0x000007FEF6670000-0x000007FEF668B000-memory.dmp

Filesize
108KB

Download
memory/684-102-0x000007FEF6260000-0x000007FEF6271000-memory.dmp

Filesize
68KB

Download
memory/684-103-0x000007FEF6240000-0x000007FEF6258000-memory.dmp

Filesize
96KB

Download
memory/684-104-0x000007FEF6040000-0x000007FEF6070000-memory.dmp

Filesize
192KB

Download
memory/684-105-0x000007FEF5DD0000-0x000007FEF5E37000-memory.dmp

Filesize
412KB

Download
memory/684-106-0x000007FEF4350000-0x000007FEF43BF000-memory.dmp

Filesize
444KB

Download
memory/684-107-0x000007FEF5EC0000-0x000007FEF5ED1000-memory.dmp

Filesize
68KB

Download
memory/684-108-0x000007FEF40A0000-0x000007FEF40F6000-memory.dmp

Filesize
344KB

Download
memory/684-109-0x000007FEF5DA0000-0x000007FEF5DC8000-memory.dmp

Filesize
160KB

Download
memory/684-110-0x000007FEF4070000-0x000007FEF4094000-memory.dmp

Filesize
144KB

Download
memory/684-111-0x000007FEF4050000-0x000007FEF4067000-memory.dmp

Filesize
92KB

Download
memory/684-112-0x000007FEF4020000-0x000007FEF4043000-memory.dmp

Filesize
140KB

Download
memory/684-115-0x000007FEF3FB0000-0x000007FEF3FD1000-memory.dmp

Filesize
132KB

Download
memory/684-116-0x000007FEF3F90000-0x000007FEF3FA3000-memory.dmp

Filesize
76KB

Download
memory/684-117-0x000007FEF3F70000-0x000007FEF3F82000-memory.dmp

Filesize
72KB

Download
memory/684-114-0x000007FEF3FE0000-0x000007FEF3FF2000-memory.dmp

Filesize
72KB

Download
memory/684-119-0x000007FEF3E00000-0x000007FEF3E2C000-memory.dmp

Filesize
176KB

Download
memory/684-118-0x000007FEF3E30000-0x000007FEF3F6B000-memory.dmp

Filesize
1.2MB

Download
memory/684-113-0x000007FEF4000000-0x000007FEF4011000-memory.dmp

Filesize
68KB

Download
memory/684-120-0x000007FEF3C40000-0x000007FEF3DF2000-memory.dmp

Filesize
1.7MB

Download
memory/684-121-0x000007FEF3BE0000-0x000007FEF3C3C000-memory.dmp

Filesize
368KB

Download
memory/684-122-0x000007FEF3BC0000-0x000007FEF3BD1000-memory.dmp

Filesize
68KB

Download
memory/684-123-0x000007FEF3B20000-0x000007FEF3BB7000-memory.dmp

Filesize
604KB

Download
memory/684-124-0x000007FEF3B00000-0x000007FEF3B12000-memory.dmp

Filesize
72KB

Download
memory/684-125-0x000007FEF38C0000-0x000007FEF3AF1000-memory.dmp

Filesize
2.2MB

Download
memory/684-126-0x000007FEF37A0000-0x000007FEF38B2000-memory.dmp

Filesize
1.1MB

Download
memory/684-127-0x000007FEF3760000-0x000007FEF3795000-memory.dmp

Filesize
212KB

Download
memory/684-128-0x000007FEF3730000-0x000007FEF3755000-memory.dmp

Filesize
148KB

Download
memory/684-129-0x000007FEF3710000-0x000007FEF3721000-memory.dmp

Filesize
68KB

Download
memory/684-131-0x000007FEF3680000-0x000007FEF3691000-memory.dmp

Filesize
68KB

Download
memory/684-130-0x000007FEF36A0000-0x000007FEF3701000-memory.dmp

Filesize
388KB

Download
memory/684-133-0x000007FEF3640000-0x000007FEF3653000-memory.dmp

Filesize
76KB

Download
memory/684-134-0x000007FEF35A0000-0x000007FEF363F000-memory.dmp

Filesize
636KB

Download
memory/684-132-0x000007FEF3660000-0x000007FEF3672000-memory.dmp

Filesize
72KB

Download
memory/684-136-0x000007FEF3470000-0x000007FEF3572000-memory.dmp

Filesize
1.0MB

Download
memory/684-135-0x000007FEF3580000-0x000007FEF3591000-memory.dmp

Filesize
68KB

Download
memory/684-137-0x000007FEF3450000-0x000007FEF3461000-memory.dmp

Filesize
68KB

Download
memory/684-138-0x000007FEF3430000-0x000007FEF3441000-memory.dmp

Filesize
68KB

Download
memory/684-141-0x000007FEF33D0000-0x000007FEF33E8000-memory.dmp

Filesize
96KB

Download
memory/684-140-0x000007FEF33F0000-0x000007FEF3402000-memory.dmp

Filesize
72KB

Download
memory/684-143-0x000007FEF3380000-0x000007FEF33A9000-memory.dmp

Filesize
164KB

Download
memory/684-142-0x000007FEF33B0000-0x000007FEF33C6000-memory.dmp

Filesize
88KB

Download
memory/684-139-0x000007FEF3410000-0x000007FEF3421000-memory.dmp

Filesize
68KB

Download
memory/684-146-0x000007FEF3320000-0x000007FEF3331000-memory.dmp

Filesize
68KB

Download
memory/684-145-0x000007FEF3340000-0x000007FEF3351000-memory.dmp

Filesize
68KB

Download
memory/684-144-0x000007FEF3360000-0x000007FEF3372000-memory.dmp

Filesize
72KB

Download