MALICIOUS — bugukuzulilibi.pdf
MALICIOUS — bugukuzulilibi.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (72/100). 3 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
d6c6fb2875b1270b07a84d43f42818425106cdc3172db4a6dc7a5624f3f1f74c - SHA-1:
26376603deaeeadf7da16cf8dd51fbf73b93771b - MD5:
f5a2f754b450f1025472d2281ea67200 - ssdeep:
1536:3GFMyiaM1Yi3oswF19jyuINV8pF9E+8u5fHNbPX4OGs:WFMlayfw9mNmpTE+l5ftb/4Ox - TLSH:
T17334BFF39153DC8C7E8F6B17EEBA0059514AD78C613293A019CC362CD1BCAAD7E50A91 - Submitted as: bugukuzulilibi.pdf
- File type: pdf · Size: 55272 bytes
- Verdict: malicious (72/100)
Detections (3 of 53 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
- Kaspersky (KVRT): UDS:Trojan.PDF.SBadur.gen
MITRE ATT&CK
Why this verdict
The malicious score of 72/100 is the fusion of 6 weighted signals:
- Contacted 11 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded link rated suspicious by URL analysis: https://uploads.strikinglycdn.com/files/eb1f4b64-d1fb-436f-b124-ffdc426c536a/72568642499.pdf - network signal, weight 0.40, confidence 0.60
- Embedded network infrastructure: https://cctraff.ru/strik?keyword=thermocouple+calibration+procedure+pdf, https://cdn.shopify.com/s/files/1/0428/0595/2671/files/18784098861.pdf, https://cdn.shopify.com/s/files/1/0431/4189/0208/files/83676093271.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
- Extracted generic config (6 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9720 behavior events · 0 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
- ntp.ubuntu.com
- desktop-hsgcbep
- 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
- 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
- 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
- 252.0.0.224.in-addr.arpa
- 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
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\e9aafb96b67bd64cd8b74d8c572026d6.png -
7eed37ec410f2d7069f0a5fd6f38795a9ae557e61ed3f7b91c8ac13aa3ff61a8 - C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
d2498dab6c91468bebec012a60b5bf9daff8b1628fe745b113d096d07155e9ad - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://cctraff.ru/strik?keyword=thermocouple+calibration+procedure+pdf
- https://cdn.shopify.com/s/files/1/0428/0595/2671/files/18784098861.pdf
- https://cdn.shopify.com/s/files/1/0431/4189/0208/files/83676093271.pdf
- https://cdn.shopify.com/s/files/1/0429/7441/2949/files/wipolawu.pdf
- https://cdn.shopify.com/s/files/1/0430/6488/5402/files/48490598151.pdf
- https://cdn.shopify.com/s/files/1/0483/9057/0144/files/casa_de_la_cultura_juridica.pdf
- https://cdn.shopify.com/s/files/1/0432/2652/9956/files/barixekizunoloj.pdf
- https://cdn.shopify.com/s/files/1/0435/9467/8435/files/xujatavofito.pdf
- https://uploads.strikinglycdn.com/files/eb1f4b64-d1fb-436f-b124-ffdc426c536a/72568642499.pdf
- https://uploads.strikinglycdn.com/files/12bc9235-3f62-404c-a8e7-ef6b9153f58f/jafadelenakujorozejo.pdf
- https://uploads.strikinglycdn.com/files/2d064323-f653-497f-91e2-624672538880/22621939029.pdf
- https://uploads.strikinglycdn.com/files/d9add757-aa92-4de8-8cc4-5b53f4712860/buvusumipidovum.pdf
- https://uploads.strikinglycdn.com/files/df41b60f-5787-4e5b-a837-acff7e7ed845/wapitazomamakosop.pdf
- https://cdn.shopify.com/s/files/1/0435/3271/4135/files/nepojenimejibabasakani.pdf
- https://cdn.shopify.com/s/files/1/0431/8789/6488/files/munulexalima.pdf
- https://cdn.shopify.com/s/files/1/0482/5297/7313/files/pokemon_card_rarity_white_circle.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
Embedded domains
- cctraff.ru
- cdn.shopify.com
- uploads.strikinglycdn.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 57.155.104.224
- 20.247.184.197
- 20.165.94.46
- 4.230.171.124
- 203.26.79.13
- 51.104.15.253
- 74.179.77.204
- 52.123.129.14
- 135.234.160.246
- 172.175.111.170
- 20.184.175.16
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report