MALICIOUS — rurifijalufetu.pdf
MALICIOUS — rurifijalufetu.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (84/100). 2 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
071a2a0834690cbe17842e14eb7d5b427de5b84be0837bcf8133134e62af861e - SHA-1:
4ee35ae344fe30b6d3944e0036ca6873a3169d72 - MD5:
9ee79d474c294e2ad60ca01d7b024f3f - ssdeep:
768:8gGzpDeLO+9PDRKKSzWjOrwZAB58XDK6g/8dqXQwCJ5vEU76iWHdIb7bH:ZGFyLEr4huR/mqAwCJ5vbWHqb7bH - TLSH:
T1E431BEF7409BDC8C3A86AB436DE6012555CEC748922AE67049CC3B7CD17CA7CBE408A1 - Submitted as: rurifijalufetu.pdf
- File type: pdf · Size: 42217 bytes
- Verdict: malicious (84/100)
Detections (2 of 53 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
MITRE ATT&CK
Why this verdict
The malicious score of 84/100 is the fusion of 6 weighted signals:
- Embedded link rated malicious by URL analysis: https://uploads.strikinglycdn.com/files/e1cd5cc3-aac4-4d16-9616-12641c12fa07/81864218720.pdf - network signal, weight 0.70, confidence 0.80
- Contacted 15 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded network infrastructure: https://cctraff.ru/strik?keyword=log+and+antilog+table+pdf+file+free+download, https://site-1036991.mozfiles.com/files/1036991/55483493405.pdf, https://site-1036861.mozfiles.com/files/1036861/pazelim.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 (7 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9704 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
- desktop-hsgcbep
- ntp.ubuntu.com
- 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
- 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
- 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\SumatraPDF-settings.txt -
94d25d616d3d850a521bfd4a176b6d92561fcd569afe773eb06a3822bbc14d3a - C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\fc79fbedabf82d32ee0dd2018d699388.png -
390319e5745fa383ff1ca5809ecfa2fe55a6039df4d0fcb6c0f46e3dede37d07 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://cctraff.ru/strik?keyword=log+and+antilog+table+pdf+file+free+download
- https://site-1036991.mozfiles.com/files/1036991/55483493405.pdf
- https://site-1036861.mozfiles.com/files/1036861/pazelim.pdf
- https://site-1036852.mozfiles.com/files/1036852/69245993277.pdf
- https://site-1036819.mozfiles.com/files/1036819/2579201973.pdf
- https://cdn.shopify.com/s/files/1/0428/7778/0134/files/kugexudejobumevokezek.pdf
- https://cdn.shopify.com/s/files/1/0434/3722/8188/files/project_cars_3_trophy_list.pdf
- https://cdn.shopify.com/s/files/1/0429/8991/2218/files/74902493124.pdf
- https://cdn.shopify.com/s/files/1/0431/3877/7249/files/25328239072.pdf
- https://cdn.shopify.com/s/files/1/0430/7078/3645/files/pameguvugusorolizud.pdf
- https://uploads.strikinglycdn.com/files/e1cd5cc3-aac4-4d16-9616-12641c12fa07/81864218720.pdf
- https://uploads.strikinglycdn.com/files/af17bdf0-0717-4a7e-9902-2462865b4ad2/vemufebagovutem.pdf
- https://cdn.shopify.com/s/files/1/0436/6660/4182/files/shadowrun_books.pdf
- https://cdn.shopify.com/s/files/1/0438/0770/3201/files/best_books_of_all_time.pdf
- https://cdn.shopify.com/s/files/1/0438/4437/0594/files/simpsons_tapped_out_hack_android_apk_download.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
- cctraff.ru
- site-1036991.mozfiles.com
- site-1036861.mozfiles.com
- site-1036852.mozfiles.com
- site-1036819.mozfiles.com
- cdn.shopify.com
- uploads.strikinglycdn.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 20.42.73.28
- 4.230.171.124
- 4.144.132.114
- 135.232.92.137
- 40.79.150.120
- 74.178.240.51
- 20.76.201.171
- 52.123.129.14
- 135.234.160.245
- 74.178.232.29
- 203.26.79.13
- 57.155.101.212
- 4.150.223.105
- 48.192.143.121
- 20.165.94.46
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report