SUSPICIOUS — siwurexe.pdf
SUSPICIOUS — siwurexe.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (68/100). 2 of 50 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
08a101db139f26d320289b767d4355800765b419c1a46c557f6224b6b40b1920 - SHA-1:
e174ba80e0cb8051e4fb86974f9a4bceb76f3226 - MD5:
e3822b524071f77aa8a31dc09b2a0ccc - ssdeep:
768:ZgGzpDAk7v45W8BzRzI1oWiMVuhyQlNUonlamG3yK7m/W3A3NHh:aGFUI8BxOonalcUon8mG3ywm/MA3NHh - TLSH:
T13332AEF35497DD8C6B86AF03ADAA1095624AC78C62329BA045DC377CC97C27D7F60920 - Submitted as: siwurexe.pdf
- File type: pdf · Size: 44225 bytes
- Verdict: suspicious (68/100)
Detections (2 of 50 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
MITRE ATT&CK
Why this verdict
The suspicious score of 68/100 is the fusion of 6 weighted signals:
- Contacted 14 external host(s) at runtime (2 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded network infrastructure: https://ggtraff.ru/strik?keyword=synonyms+and+antonyms+worksheet+grad, https://uploads.strikinglycdn.com/files/7a3d6475-6906-493a-abf1-8e97b7b439f6/lobuvujirilojil.pdf, https://uploads.strikinglycdn.com/files/dd9baf6f-455a-4747-a3c8-cdf8169eb6d4/86849080872.pdf - static signal, weight 0.35, confidence 0.60
- Document active content: uri-action - static signal, weight 0.30, confidence 0.60
- Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90 - Extracted generic config (15 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9847 behavior events · 1 ATT&CK techniques · 3 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
- desktop-hsgcbep
- desktop-hsgcbep._dosvc._tcp.local
- 250.255.255.239.in-addr.arpa
- b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 252.0.0.224.in-addr.arpa
- 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- desktop-hsgcbep(1)._dosvc._tcp.local
- ntp.ubuntu.com
- http://www.msftconnecttest.com/connecttest.txt
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\303c46cc57631c1bf521e0efe584f8b4.png -
5645754cbc260405ac1c76ce845991401900cdba670f21fb81e96b5f9f7280fe - C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
b34415cfbec49dab1cdf9ced16f70e1cd567b7bdfaa91423dd9b4a9fc37fb6db - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://ggtraff.ru/strik?keyword=synonyms+and+antonyms+worksheet+grad
- https://uploads.strikinglycdn.com/files/7a3d6475-6906-493a-abf1-8e97b7b439f6/lobuvujirilojil.pdf
- https://uploads.strikinglycdn.com/files/dd9baf6f-455a-4747-a3c8-cdf8169eb6d4/86849080872.pdf
- https://uploads.strikinglycdn.com/files/985d8912-6837-4b12-909f-16fada71d629/39980507094.pdf
- https://uploads.strikinglycdn.com/files/998ec6e7-32ad-497a-b296-fa787b208f05/71929665649.pdf
- https://uploads.strikinglycdn.com/files/b367cda4-d576-41f6-a604-3332d219ee08/jogolokuveruwatorura.pdf
- https://cdn.shopify.com/s/files/1/0436/4392/8726/files/29297487396.pdf
- https://cdn.shopify.com/s/files/1/0481/4408/9237/files/vicks_filter_free_cool_mist_humidifier_manual.pdf
- https://site-1038910.mozfiles.com/files/1038910/duroz.pdf
- https://site-1040095.mozfiles.com/files/1040095/judibuw.pdf
- https://site-1036735.mozfiles.com/files/1036735/21694314968.pdf
- https://site-1037009.mozfiles.com/files/1037009/katetazumijuxulagosofuru.pdf
- https://site-1039398.mozfiles.com/files/1039398/junavofonaxukeduge.pdf
- https://uploads.strikinglycdn.com/files/169cbd4e-1ce6-4bdf-b5c1-96b215035a2b/76201016215.pdf
- https://uploads.strikinglycdn.com/files/e248bcf3-3470-44de-a967-28146bfbac5d/majipaxiduvurodaridaj.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- 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/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
Embedded domains
- ggtraff.ru
- uploads.strikinglycdn.com
- cdn.shopify.com
- site-1038910.mozfiles.com
- site-1040095.mozfiles.com
- site-1036735.mozfiles.com
- site-1037009.mozfiles.com
- site-1039398.mozfiles.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 20.165.94.63
- 20.42.73.24
- 52.110.12.14
- 74.179.77.204
- 4.230.171.124
- 20.112.250.133
- 85.210.193.152
- 74.178.232.29
- 72.153.5.141
- 52.123.128.14
- 203.26.79.13
- 4.150.223.111
- 20.42.65.89
- 162.159.36.2
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report