c66ec8d0947032dfeedda104c3e225b789ed4e6030d7befff9ddf8b97be9722b

Analysis

max time kernel
27s
max time network
100s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
07-03-2023 19:25

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General

Target

4kvideodownloader_4.23.3_x64_online.exe
Size

849KB
MD5

79fb9162155973833eb0ba120c4c4759
SHA1

bc2eefdb2113bddb89feb9a4e60b2526df8ce6f4
SHA256

c66ec8d0947032dfeedda104c3e225b789ed4e6030d7befff9ddf8b97be9722b
SHA512

9eac2844635f68dfee1fdf84a0404547f57c8543965c7b8a96b0be08f2f7228d3777bf0997adca681625dc307dc9d0ac2e742ff114ba6703e039373ab71e580f
SSDEEP

12288:1zNB0JfiwSdYSui8zZH94I3H1v1Sfmi2VFKF+I/yvAQsW6Py0/b1:hNsfiTdYSuVzZH9tH1v14mTscAfa0

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
912	4kvideodownloader_4.23.3_x64_online.exe

Loads dropped DLL 2 IoCs

pid	Process
1472	4kvideodownloader_4.23.3_x64_online.exe
912	4kvideodownloader_4.23.3_x64_online.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1472 wrote to memory of 912	1472	4kvideodownloader_4.23.3_x64_online.exe	28
PID 1472 wrote to memory of 912	1472	4kvideodownloader_4.23.3_x64_online.exe	28
PID 1472 wrote to memory of 912	1472	4kvideodownloader_4.23.3_x64_online.exe	28
PID 1472 wrote to memory of 912	1472	4kvideodownloader_4.23.3_x64_online.exe	28
PID 1472 wrote to memory of 912	1472	4kvideodownloader_4.23.3_x64_online.exe	28
PID 1472 wrote to memory of 912	1472	4kvideodownloader_4.23.3_x64_online.exe	28
PID 1472 wrote to memory of 912	1472	4kvideodownloader_4.23.3_x64_online.exe	28

C:\Users\Admin\AppData\Local\Temp\4kvideodownloader_4.23.3_x64_online.exe
"C:\Users\Admin\AppData\Local\Temp\4kvideodownloader_4.23.3_x64_online.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1472
- C:\Windows\Temp\{B67D8A72-B22C-4778-87DD-A797396D1B58}\.cr\4kvideodownloader_4.23.3_x64_online.exe
  "C:\Windows\Temp\{B67D8A72-B22C-4778-87DD-A797396D1B58}\.cr\4kvideodownloader_4.23.3_x64_online.exe" -burn.clean.room="C:\Users\Admin\AppData\Local\Temp\4kvideodownloader_4.23.3_x64_online.exe" -burn.filehandle.attached=180 -burn.filehandle.self=188
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:912

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Temp\{9E37A832-7780-4353-8399-248CC7F8E388}\.ba\logo.png

Filesize
3KB

MD5
b27e32234f86f98b1938aa4cee8c56c8

SHA1
f53324ca510b6fd8401cd944b38eca788e063bc2

SHA256
32c4ef0ed1364f2489bb5fab2818347b9f16e398d76b319a0a8f134fe1b17673

SHA512
bafc59a1f866f65c6417f732b805660e4f87bc04b36bdcdb0a686955c2c04693923f360daf6ba0db8b743bec6e65c62737ab8732314ad69a846ee0d5eb7770a0

Download Submit
C:\Windows\Temp\{B67D8A72-B22C-4778-87DD-A797396D1B58}\.cr\4kvideodownloader_4.23.3_x64_online.exe

Filesize
725KB

MD5
fd09e1935c0c231a65b4a8427c9ef19c

SHA1
c9558c8af644a2016f99e68df613b9d67eddb215

SHA256
70737ca8f71713371db466640be39d83f7f05138d742381b6237da018478eed9

SHA512
362959e9ca93699781714e928b41e6f153c560daf78113dd668b155c0cc8ff810a75c9b55856345982daa1b5636c8f8060cb8da1a086c08f11adcafdb47c1311

Download Submit
C:\Windows\Temp\{B67D8A72-B22C-4778-87DD-A797396D1B58}\.cr\4kvideodownloader_4.23.3_x64_online.exe

Filesize
725KB

MD5
fd09e1935c0c231a65b4a8427c9ef19c

SHA1
c9558c8af644a2016f99e68df613b9d67eddb215

SHA256
70737ca8f71713371db466640be39d83f7f05138d742381b6237da018478eed9

SHA512
362959e9ca93699781714e928b41e6f153c560daf78113dd668b155c0cc8ff810a75c9b55856345982daa1b5636c8f8060cb8da1a086c08f11adcafdb47c1311

Download Submit
\Windows\Temp\{9E37A832-7780-4353-8399-248CC7F8E388}\.ba\wixstdba.dll

Filesize
184KB

MD5
fe7e0bd53f52e6630473c31299a49fdd

SHA1
f706f45768bfb95f4c96dfa0be36df57aa863898

SHA256
2bea14d70943a42d344e09b7c9de5562fa7e109946e1c615dd584da30d06cc80

SHA512
feed48286b1e182996a3664f0facdf42aae3692d3d938ea004350c85764db7a0bea996dfddf7a77149c0d4b8b776fb544e8b1ce5e9944086a5b1ed6a8a239a3c

Download Submit
\Windows\Temp\{B67D8A72-B22C-4778-87DD-A797396D1B58}\.cr\4kvideodownloader_4.23.3_x64_online.exe

Filesize
725KB

MD5
fd09e1935c0c231a65b4a8427c9ef19c

SHA1
c9558c8af644a2016f99e68df613b9d67eddb215

SHA256
70737ca8f71713371db466640be39d83f7f05138d742381b6237da018478eed9

SHA512
362959e9ca93699781714e928b41e6f153c560daf78113dd668b155c0cc8ff810a75c9b55856345982daa1b5636c8f8060cb8da1a086c08f11adcafdb47c1311

Download Submit