b16ebaec337178a9f4c661d84a9998e453f4b693eab3e3fbc9bb6b957661f3c6

Analysis

max time kernel
140s
max time network
33s
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/NTS_eTaxInvoice (2).rar
Size

38KB
MD5

aec423421b9eddddd2f6879b0ff3df32
SHA1

591c8f52b9ec831746c6aefb96f1e94812af9d69
SHA256

44a32b053b8798841bc2f786d8c4656a95b2371a6f9d723a239f1a1ffd1c2867
SHA512

4058a2c70b397bb0fea84e0ff79a3a75a6f8ea07088fc2dcf41f28666ff465383bd9cbc6f7c62e7b86e37430087c8084777c655a1bc21b3b81f9d075a3c7e03a
SSDEEP

768:0grWjTDDlTPFuBb7G6/BRfWjwy34Q/Xs4whOo8GO/5l/Ja:0grWrDlTN6b7r/rOj734Q/f88ZBJa

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

1796 vlc.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

vlc.exe

pid process

1796 vlc.exe
Suspicious use of FindShellTrayWindow 8 IoCs

Processes:

vlc.exe

pid process

1796 vlc.exe
1796 vlc.exe
1796 vlc.exe
1796 vlc.exe
1796 vlc.exe
1796 vlc.exe
1796 vlc.exe
1796 vlc.exe
Suspicious use of SendNotifyMessage 7 IoCs

Processes:

vlc.exe

pid process

1796 vlc.exe
1796 vlc.exe
1796 vlc.exe
1796 vlc.exe
1796 vlc.exe
1796 vlc.exe
1796 vlc.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

vlc.exe

pid process

1796 vlc.exe

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

pid	process
1796	vlc.exe

pid	process
1796	vlc.exe

pid	process
1796	vlc.exe
1796	vlc.exe
1796	vlc.exe
1796	vlc.exe
1796	vlc.exe
1796	vlc.exe
1796	vlc.exe
1796	vlc.exe

pid	process
1796	vlc.exe
1796	vlc.exe
1796	vlc.exe
1796	vlc.exe
1796	vlc.exe
1796	vlc.exe
1796	vlc.exe

pid	process
1796	vlc.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1584 wrote to memory of 444	1584	cmd.exe	rundll32.exe
PID 1584 wrote to memory of 444	1584	cmd.exe	rundll32.exe
PID 1584 wrote to memory of 444	1584	cmd.exe	rundll32.exe
PID 444 wrote to memory of 1796	444	rundll32.exe	vlc.exe
PID 444 wrote to memory of 1796	444	rundll32.exe	vlc.exe
PID 444 wrote to memory of 1796	444	rundll32.exe	vlc.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\APT 37 Previous Commits 3\NTS_eTaxInvoice (2).rar"
1⤵
- Suspicious use of WriteProcessMemory
PID:1584

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\NTS_eTaxInvoice (2).rar
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:444

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\NTS_eTaxInvoice (2).rar"
3⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:1796

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/1796-83-0x000000013F1F0000-0x000000013F2E8000-memory.dmp

Filesize
992KB

Download
memory/1796-84-0x000007FEFB440000-0x000007FEFB474000-memory.dmp

Filesize
208KB

Download
memory/1796-85-0x000007FEF6AA0000-0x000007FEF6D54000-memory.dmp

Filesize
2.7MB

Download
memory/1796-86-0x000007FEFBDD0000-0x000007FEFBDE8000-memory.dmp

Filesize
96KB

Download
memory/1796-87-0x000007FEFB3B0000-0x000007FEFB3C7000-memory.dmp

Filesize
92KB

Download
memory/1796-88-0x000007FEFB390000-0x000007FEFB3A1000-memory.dmp

Filesize
68KB

Download
memory/1796-89-0x000007FEFB370000-0x000007FEFB387000-memory.dmp

Filesize
92KB

Download
memory/1796-90-0x000007FEFB180000-0x000007FEFB191000-memory.dmp

Filesize
68KB

Download
memory/1796-91-0x000007FEFB160000-0x000007FEFB17D000-memory.dmp

Filesize
116KB

Download
memory/1796-92-0x000007FEFB140000-0x000007FEFB151000-memory.dmp

Filesize
68KB

Download
memory/1796-93-0x000007FEF6380000-0x000007FEF6580000-memory.dmp

Filesize
2.0MB

Download
memory/1796-94-0x000007FEFB100000-0x000007FEFB13F000-memory.dmp

Filesize
252KB

Download
memory/1796-95-0x000007FEF52D0000-0x000007FEF637B000-memory.dmp

Filesize
16.7MB

Download
memory/1796-96-0x000007FEFB0D0000-0x000007FEFB0F1000-memory.dmp

Filesize
132KB

Download
memory/1796-97-0x000007FEFB0B0000-0x000007FEFB0C8000-memory.dmp

Filesize
96KB

Download
memory/1796-98-0x000007FEFB090000-0x000007FEFB0A1000-memory.dmp

Filesize
68KB

Download
memory/1796-99-0x000007FEFAE50000-0x000007FEFAE61000-memory.dmp

Filesize
68KB

Download
memory/1796-100-0x000007FEFAE30000-0x000007FEFAE41000-memory.dmp

Filesize
68KB

Download
memory/1796-101-0x000007FEFAE10000-0x000007FEFAE2B000-memory.dmp

Filesize
108KB

Download
memory/1796-102-0x000007FEFADF0000-0x000007FEFAE01000-memory.dmp

Filesize
68KB

Download
memory/1796-103-0x000007FEFADD0000-0x000007FEFADE8000-memory.dmp

Filesize
96KB

Download
memory/1796-104-0x000007FEFADA0000-0x000007FEFADD0000-memory.dmp

Filesize
192KB

Download
memory/1796-105-0x000007FEF6EA0000-0x000007FEF6F07000-memory.dmp

Filesize
412KB

Download
memory/1796-106-0x000007FEF6960000-0x000007FEF69CF000-memory.dmp

Filesize
444KB

Download
memory/1796-107-0x000007FEFAD80000-0x000007FEFAD91000-memory.dmp

Filesize
68KB

Download
memory/1796-108-0x000007FEF6640000-0x000007FEF6696000-memory.dmp

Filesize
344KB

Download
memory/1796-109-0x000007FEF6A70000-0x000007FEF6A98000-memory.dmp

Filesize
160KB

Download
memory/1796-110-0x000007FEF6930000-0x000007FEF6954000-memory.dmp

Filesize
144KB

Download
memory/1796-111-0x000007FEF7A10000-0x000007FEF7A27000-memory.dmp

Filesize
92KB

Download
memory/1796-112-0x000007FEF6830000-0x000007FEF6853000-memory.dmp

Filesize
140KB

Download
memory/1796-113-0x000007FEF6E80000-0x000007FEF6E91000-memory.dmp

Filesize
68KB

Download
memory/1796-114-0x000007FEF74F0000-0x000007FEF7502000-memory.dmp

Filesize
72KB

Download
memory/1796-115-0x000007FEF74C0000-0x000007FEF74E1000-memory.dmp

Filesize
132KB

Download
memory/1796-116-0x000007FEF74A0000-0x000007FEF74B3000-memory.dmp

Filesize
76KB

Download
memory/1796-117-0x000007FEF7480000-0x000007FEF7492000-memory.dmp

Filesize
72KB

Download
memory/1796-118-0x000007FEF50C0000-0x000007FEF51FB000-memory.dmp

Filesize
1.2MB

Download
memory/1796-119-0x000007FEF7450000-0x000007FEF747C000-memory.dmp

Filesize
176KB

Download
memory/1796-120-0x000007FEF4840000-0x000007FEF49F2000-memory.dmp

Filesize
1.7MB

Download
memory/1796-121-0x000007FEF4480000-0x000007FEF44DC000-memory.dmp

Filesize
368KB

Download
memory/1796-122-0x000007FEF3F10000-0x000007FEF3F21000-memory.dmp

Filesize
68KB

Download
memory/1796-123-0x000007FEF4030000-0x000007FEF40C7000-memory.dmp

Filesize
604KB

Download
memory/1796-124-0x000007FEF4010000-0x000007FEF4022000-memory.dmp

Filesize
72KB

Download
memory/1796-125-0x000007FEF3CD0000-0x000007FEF3F01000-memory.dmp

Filesize
2.2MB

Download
memory/1796-126-0x000007FEF39B0000-0x000007FEF3AC2000-memory.dmp

Filesize
1.1MB

Download
memory/1796-127-0x000007FEF3FD0000-0x000007FEF4005000-memory.dmp

Filesize
212KB

Download
memory/1796-128-0x000007FEF3FA0000-0x000007FEF3FC5000-memory.dmp

Filesize
148KB

Download
memory/1796-129-0x000007FEF3F80000-0x000007FEF3F91000-memory.dmp

Filesize
68KB

Download
memory/1796-130-0x000007FEF3C60000-0x000007FEF3CC1000-memory.dmp

Filesize
388KB

Download
memory/1796-131-0x000007FEF3F60000-0x000007FEF3F71000-memory.dmp

Filesize
68KB

Download
memory/1796-132-0x000007FEF3F40000-0x000007FEF3F52000-memory.dmp

Filesize
72KB

Download
memory/1796-133-0x000007FEF3B80000-0x000007FEF3B93000-memory.dmp

Filesize
76KB

Download
memory/1796-134-0x000007FEF3AE0000-0x000007FEF3B7F000-memory.dmp

Filesize
636KB

Download
memory/1796-135-0x000007FEF3800000-0x000007FEF3811000-memory.dmp

Filesize
68KB

Download
memory/1796-136-0x000007FEF36F0000-0x000007FEF37F2000-memory.dmp

Filesize
1.0MB

Download
memory/1796-137-0x000007FEF36D0000-0x000007FEF36E1000-memory.dmp

Filesize
68KB

Download
memory/1796-138-0x000007FEF36B0000-0x000007FEF36C1000-memory.dmp

Filesize
68KB

Download
memory/1796-139-0x000007FEF3690000-0x000007FEF36A1000-memory.dmp

Filesize
68KB

Download
memory/1796-140-0x000007FEF3670000-0x000007FEF3682000-memory.dmp

Filesize
72KB

Download
memory/1796-141-0x000007FEF3650000-0x000007FEF3668000-memory.dmp

Filesize
96KB

Download
memory/1796-142-0x000007FEF3630000-0x000007FEF3646000-memory.dmp

Filesize
88KB

Download
memory/1796-143-0x000007FEF3600000-0x000007FEF3629000-memory.dmp

Filesize
164KB

Download
memory/1796-144-0x000007FEF35E0000-0x000007FEF35F2000-memory.dmp

Filesize
72KB

Download
memory/1796-145-0x000007FEF35C0000-0x000007FEF35D1000-memory.dmp

Filesize
68KB

Download
memory/1796-146-0x000007FEF35A0000-0x000007FEF35B1000-memory.dmp

Filesize
68KB

Download