Analysis
- max time kernel
123s - max time network
122s - platform
windows7_x64 - resource
win7-en-20211208 - submitted
20/01/2022, 17:14
Static task
static1
Behavioral task
behavioral1
Sample
opra.doc.dll
Resource
win7-en-20211208
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
opra.doc.dll
Resource
win10v2004-en-20220112
0 signatures
0 seconds
General
- Target opra.doc.dll
- Size 209KB
- Sample220120-vrzxgsagg7
- SHA256 4bbab985fdd9eee28a8a9951080d28c2b51de13ad5e42c471e9933d9b596eacc
- MD5 a16e7e2cdb9571cf0470324984b53146
- SHA1 757d174a82da0c8412b80c5afffdb4ffdb2a13f2
- SHA512 2638d24cacebdfbe183db6c0a15a997ab5d351ccb441d9fa6b460c7e4c1b3c5411f00a5560090c255dc975c6c716fa6caad0fde0a9e71633369bd338002be7a6
- MD5 SHA1 SHA512
Score
1/10
Malware Config
Signatures
- Delays execution with timeout.exe 1 IoCs
pid Process 1188 timeout.exe - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1600 wrote to memory of 640 1600 rundll32.exe 29 PID 1600 wrote to memory of 640 1600 rundll32.exe 29 PID 1600 wrote to memory of 640 1600 rundll32.exe 29 PID 640 wrote to memory of 1188 640 cmd.exe 31 PID 640 wrote to memory of 1188 640 cmd.exe 31 PID 640 wrote to memory of 1188 640 cmd.exe 31 PID 640 wrote to memory of 1368 640 cmd.exe 32 PID 640 wrote to memory of 1368 640 cmd.exe 32 PID 640 wrote to memory of 1368 640 cmd.exe 32
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\opra.doc.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1600 -
C:\Windows\system32\cmd.execmd /c timeout 5 & "C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\opra.doc.dll", #1 wD6bUqfE kO5rG7fD & exit2⤵
- Suspicious use of WriteProcessMemory
PID:640 -
C:\Windows\system32\timeout.exetimeout 53⤵
- Delays execution with timeout.exe
PID:1188
-
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\opra.doc.dll", #1 wD6bUqfE kO5rG7fD3⤵PID:1368
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