Analysis Overview
SHA256
544887bc3f0dccb610dd7ba35b498a03ea32fca047e133a0639d5bca61cc6f45
Threat Level: Known bad
The file 544887bc3f0dccb610dd7ba35b498a03ea32fca047e133a0639d5bca61cc6f45.js was found to be: Known bad.
Malicious Activity Summary
Strela
Loads dropped DLL
Checks computer location settings
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-26 02:14
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-26 02:14
Reported
2024-03-26 02:17
Platform
win7-20240319-en
Max time kernel
121s
Max time network
124s
Command Line
Signatures
Strela
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\system32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\system32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\system32\rundll32.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\544887bc3f0dccb610dd7ba35b498a03ea32fca047e133a0639d5bca61cc6f45.js
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /k copy "C:\Users\Admin\AppData\Local\Temp\544887bc3f0dccb610dd7ba35b498a03ea32fca047e133a0639d5bca61cc6f45.js" "C:\Users\Admin\AppData\Local\Temp\\trousersperpetual.bat" && "C:\Users\Admin\AppData\Local\Temp\\trousersperpetual.bat"
C:\Windows\system32\findstr.exe
findstr /V marrywise ""C:\Users\Admin\AppData\Local\Temp\\trousersperpetual.bat""
C:\Windows\system32\certutil.exe
certutil -f -decode magnificentdevelopment returnready.dll
C:\Windows\system32\cmd.exe
cmd /c rundll32 returnready.dll,m
C:\Windows\system32\rundll32.exe
rundll32 returnready.dll,m
Network
Files
C:\Users\Admin\AppData\Local\Temp\trousersperpetual.bat
| MD5 | 301503edfb1ea723b231b416c2a81f0f |
| SHA1 | dd41fda85637d2593ef4aad407371ec830fe171d |
| SHA256 | 544887bc3f0dccb610dd7ba35b498a03ea32fca047e133a0639d5bca61cc6f45 |
| SHA512 | f5df4b28a0f012b458026ef7caa2f460f51476a67e63e63641631dc5672b4920422618afb36af17373ffdfcc678370dc965678f3d3f1dda5326589c2a471f9d5 |
C:\Users\Admin\AppData\Local\Temp\magnificentdevelopment
| MD5 | 04d8d28e9039e6861017650bb59f24b3 |
| SHA1 | 53741049bc23ab05658dc32ad54326a87dd0edee |
| SHA256 | 54d3f28c9044ca9b16d3584d7bfac00c65f8aa6369801b340e1a7348d4681bef |
| SHA512 | 05c9830335b82a5dd020e097e8fb3241e52d60875d951b13dfe82ad590c922ed6884ae5f9a1d2a6270c0d3456bc88ed8d373c5fdedca8a604f65ce986f00cf32 |
C:\Users\Admin\AppData\Local\Temp\returnready.dll
| MD5 | 9499f14143b34ea7703c73b5f9b37013 |
| SHA1 | ceff6b19826c9a4e9b9e8cbcc512d5241a27825e |
| SHA256 | e6991b12e86629b38e178fef129dfda1d454391ffbb236703f8c026d6d55b9a1 |
| SHA512 | f14dec41f677fb3e2af064b4b7a6b3b15bec8429a831a78247513853d4ce7511ed37e89e52ebadbed03ab9115dcea3cc316b90e99c939d07402b5a554d722668 |
memory/2484-393-0x000007FEF6500000-0x000007FEF6547000-memory.dmp
memory/2484-394-0x00000000003A0000-0x00000000003C3000-memory.dmp
memory/2484-395-0x00000000003A0000-0x00000000003C3000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-26 02:14
Reported
2024-03-26 02:17
Platform
win10v2004-20240226-en
Max time kernel
146s
Max time network
155s
Command Line
Signatures
Strela
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation | C:\Windows\system32\wscript.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\rundll32.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\544887bc3f0dccb610dd7ba35b498a03ea32fca047e133a0639d5bca61cc6f45.js
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /k copy "C:\Users\Admin\AppData\Local\Temp\544887bc3f0dccb610dd7ba35b498a03ea32fca047e133a0639d5bca61cc6f45.js" "C:\Users\Admin\AppData\Local\Temp\\trousersperpetual.bat" && "C:\Users\Admin\AppData\Local\Temp\\trousersperpetual.bat"
C:\Windows\system32\findstr.exe
findstr /V marrywise ""C:\Users\Admin\AppData\Local\Temp\\trousersperpetual.bat""
C:\Windows\system32\certutil.exe
certutil -f -decode magnificentdevelopment returnready.dll
C:\Windows\system32\cmd.exe
cmd /c rundll32 returnready.dll,m
C:\Windows\system32\rundll32.exe
rundll32 returnready.dll,m
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.241.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 195.201.50.20.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\trousersperpetual.bat
| MD5 | 301503edfb1ea723b231b416c2a81f0f |
| SHA1 | dd41fda85637d2593ef4aad407371ec830fe171d |
| SHA256 | 544887bc3f0dccb610dd7ba35b498a03ea32fca047e133a0639d5bca61cc6f45 |
| SHA512 | f5df4b28a0f012b458026ef7caa2f460f51476a67e63e63641631dc5672b4920422618afb36af17373ffdfcc678370dc965678f3d3f1dda5326589c2a471f9d5 |
C:\Users\Admin\AppData\Local\Temp\magnificentdevelopment
| MD5 | 04d8d28e9039e6861017650bb59f24b3 |
| SHA1 | 53741049bc23ab05658dc32ad54326a87dd0edee |
| SHA256 | 54d3f28c9044ca9b16d3584d7bfac00c65f8aa6369801b340e1a7348d4681bef |
| SHA512 | 05c9830335b82a5dd020e097e8fb3241e52d60875d951b13dfe82ad590c922ed6884ae5f9a1d2a6270c0d3456bc88ed8d373c5fdedca8a604f65ce986f00cf32 |
C:\Users\Admin\AppData\Local\Temp\returnready.dll
| MD5 | 9499f14143b34ea7703c73b5f9b37013 |
| SHA1 | ceff6b19826c9a4e9b9e8cbcc512d5241a27825e |
| SHA256 | e6991b12e86629b38e178fef129dfda1d454391ffbb236703f8c026d6d55b9a1 |
| SHA512 | f14dec41f677fb3e2af064b4b7a6b3b15bec8429a831a78247513853d4ce7511ed37e89e52ebadbed03ab9115dcea3cc316b90e99c939d07402b5a554d722668 |
memory/1104-390-0x00007FFF42EF0000-0x00007FFF42F37000-memory.dmp
memory/1104-391-0x000002C183CB0000-0x000002C183CD3000-memory.dmp