MALICIOUS — 4a9f8a9ff551edd0fc7ad74656ddbd6ce800a74e6b775c6936092edc2b2a0782
MALICIOUS — 4a9f8a9ff551edd0fc7ad74656ddbd6ce800a74e6b775c6936092edc2b2a0782 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the SelfDel family. 4 of 55 detection engines flagged it, exhibiting 7 ATT&CK techniques.
Identification
- SHA-256:
4a9f8a9ff551edd0fc7ad74656ddbd6ce800a74e6b775c6936092edc2b2a0782 - SHA-1:
a73e9b47512c4afa6bc4b48b563df6a43b522b59 - MD5:
ee20f7f1c05356be7c7cb499c6290312 - imphash:
170193414cc4abf0ae27dc2a19d74879 - ssdeep:
768:qZL/0F24lercjO4sTZg5ZLvn2IuWZ0kqKNPWQHp0:OLsF2Kerc64sTiX2IV0Dhu0 - TLSH:
T1242F396747309602F391A68B55403F4DB0B6A8EE3136C7519EE2B67E8BE045738B847C - Submitted as: 4a9f8a9ff551edd0fc7ad74656ddbd6ce800a74e6b775c6936092edc2b2a0782
- File type: pe · Size: 32780 bytes
- Verdict: malicious (99/100) · Family: SelfDel
Detections (4 of 55 engines)
- ClamAV (daily): Win.Malware.Juko-9753236-0
- Microsoft Defender: Trojan:Win32/SelfDel!pz
- Emsisoft (Emergency Kit): Trojan.Downloader.JUKO
- Kaspersky (KVRT): HEUR:Trojan.Win32.SelfDel.gen
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 11 weighted signals:
- ClamAV (daily) flagged Win.Malware.Juko-9753236-0 (rule
Win.Malware.Juko-9753236-0) - engine signal, weight 0.90, confidence 0.95 - 3 behavioral detection(s) across 3 rule(s): Registry Run Key Persistence [high] (rule
tl-run-key) - dynamic signal, weight 0.66, confidence 0.90 - Observed at runtime: Registry Run Key Persistence (T1547.001) (rule
Registry Run Key Persistence) - dynamic signal, weight 0.40, confidence 0.90 - Observed at runtime: Windows Service (T1543.003) (rule
Windows Service) - dynamic signal, weight 0.40, confidence 0.90 - Contacted 25 external host(s) and 32 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497.001, T1497, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
- communicate over HTTP (rule
communicate over HTTP) - capa signal, weight 0.30, confidence 0.60 - enumerate processes (rule
enumerate processes) - capa signal, weight 0.20, confidence 0.60 - Dropped 1 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90 - Memory forensics: 2 finding(s) elsewhere in the guest, not attributed to this sample, e.g. SSDT hook (rule
windows.ssdt.SSDT) - memory signal, weight 0.05, confidence 0.30
Dynamic analysis (windows)
15257 behavior events · 3 ATT&CK techniques · 1 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- i.assmio.com
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- licensing.mp.microsoft.com
- windows.msn.com
- oneocsp.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Roaming\Mozilla\WINWORD.exe -
709a5ee8212b00a0c29f63aaa6e1b2a679877594ea3d4546bf2e98799ff0cd2a
Embedded URLs
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/9a8a705c-852d-4d18-b32a-ee1d872f4bd9/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/9a8a705c-852d-4d18-b32a-ee1d872f4bd9?P1=1787949353&P2=404&P3=2&P4=JABNiECCGVfWXqvgrH5eeVqHVM73D%2byYWiauxBeojOBoy7owOba4HJTP1kwoi6oWR96ejVRqvvmsDCUSfIB0hw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://i.assmio.com/768506A789129193000015390C5864EF.html
- http://203.26.79.13/filestreamingservice//files/51d86688-616b-47e3-abeb-3df16a1583c5/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/51d86688-616b-47e3-abeb-3df16a1583c5?P1=1787949408&P2=404&P3=2&P4=gzSbmh7rkH7XpA4GWuY6gqmVGagH8mJ2C8aBIJMeiVjVV8hvBo0GYGw5fcPdvWb7EUQoPvEzXcKmpD07PZEnHQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://i.assmio.com/76E266AD8912938400001CC7E06B572E.html
- http://i.assmio.com/7742B6A989129575000024398765A348.shtm
- http://i.assmio.com/369206A788B27209000025FDE975381C.aspx
- http://i.assmio.com/36DDC6AA88B2737100002BA52E18B428.484K
- http://i.assmio.com/36FF26A988B273EF00002D6C9F7686AF.shtm
Embedded domains
- i.assmio.com
Embedded IP addresses
- 20.42.65.89
- 52.123.252.240
- 52.230.60.54
- 4.247.188.224
- 4.230.171.124
- 85.210.196.11
- 74.179.77.204
- 74.178.240.51
- 52.168.112.67
- 20.236.44.162
- 52.123.129.14
- 52.123.128.14
- 52.123.252.212
- 203.26.79.13
- 135.232.92.34
- 172.178.240.163
- 40.84.85.40
- 52.148.114.188
- 135.234.160.245
- 52.110.12.15
- 52.110.12.14
- 172.234.31.13
- 184.84.165.171
- 72.154.7.97
- 52.110.12.30
More SelfDel samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report