Malicious PDF — malware analysis report

Static analysis result for SHA-256 05decbf5bd2a0297…

MALICIOUS

PDF

36.8 KB Created: 2020-08-25 15:44:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 267efeb35b2cab74240be68db198d5d0 SHA-1: 4b7ced4e66d68a766fa62687d98a5d2303a612f8 SHA-256: 05decbf5bd2a02973352fbbb55bf8192e24bc6d4bb89ee32b09c386ceeb82812
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document exhibits characteristics of a link farm, embedding numerous URLs, with at least one identified as a malicious redirector. The ML classifier also flagged this PDF as malicious. The embedded URLs suggest an attempt to lure users to potentially harmful sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9863

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=assembly+rowdy+andamaina+vennelalona+song
    • http://lezesudu.zicklinfaa.com/uploads/1/3/0/8/130814328/4030404.pdf
    • http://bubapap.hamiltonparksculpture.com/uploads/1/3/1/8/131856318/5083308.pdf
    • http://files.briggs-artstudio.com/uploads/1/3/1/4/131454012/zozivixisapup.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/9168/0666/files/danny_boy_flute_duet_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0429/3741/7891/files/69411985687.pdf
    • https://cdn.shopify.com/s/files/1/0430/2100/9053/files/fivokekaxefanujojo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4071/8496/files/dalenikakez.pdf
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/bopufusalipimop.pdf
    • https://cdn.shopify.com/s/files/1/0438/3142/7234/files/guboso.pdf
    • https://cdn.shopify.com/s/files/1/0432/8652/8155/files/zulin.pdf
    • https://cdn.shopify.com/s/files/1/0429/1824/8601/files/d_d_urban_bounty_hunter.pdf
    • https://cdn.shopify.com/s/files/1/0429/6045/3785/files/43032410677.pdf
    • https://cdn.shopify.com/s/files/1/0434/0423/0805/files/35921070767.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e6e.bin
f8251ded63ef5dfa7e09731202ca7a5f85d59f28995520d749df30d7812c7d6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E6E 5528 bytes
font_01_sfnt_off00006130.bin
353ca49c76bbf5a978f6eadfb012b618f5dc459d4b28ba347dd814e89f672df0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6130 14996 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.