Malicious PDF — malware analysis report

Static analysis result for SHA-256 488cbbf77e12779e…

MALICIOUS

PDF

35.7 KB Created: 2020-08-22 06:50:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b108f9ac58a1e9a8503ca5d4e5d4e9b SHA-1: d933888bcb51830afd410dbe0c38fe5343cf12d3 SHA-256: 488cbbf77e12779e0b287955306e0ce26d249604c3896c459863c84bb723b31e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file exhibits characteristics of a link farm, embedding a large number of external URLs. One of these URLs, 'https://ttraff.cc/pify?keyword=life+imdb+parents+guide', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other links, suggesting the primary intent is to lure users to potentially harmful external content. No scripts were extracted, and the file type is PDF, indicating a likely social engineering attack leveraging embedded links.

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=life+imdb+parents+guide
    • http://telani.amfringe.com/uploads/1/3/0/8/130874049/buzifojopuligeb.pdf
    • http://finuwasu.camdencollaborative.com/uploads/1/3/1/0/131071021/nagewugugafo-rirerupis-nipemibowubif-pejezuz.pdf
    • https://cdn.shopify.com/s/files/1/0459/6059/3567/files/family_reunion_logo_templates.pdf
    • https://cdn.shopify.com/s/files/1/0438/6871/7216/files/yamaha_psrs_500.pdf
    • https://cdn.shopify.com/s/files/1/0430/0426/4602/files/lugowobitowu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6731/8167/files/wow_classic_aoe_grind_spots.pdf
    • https://cdn.shopify.com/s/files/1/0429/8299/8170/files/mmorpg_the_almighty_ring.pdf
    • https://cdn.shopify.com/s/files/1/0432/0467/3697/files/70484106459.pdf
    • https://cdn.shopify.com/s/files/1/0431/9140/2660/files/92412606360.pdf
    • https://cdn.shopify.com/s/files/1/0433/6913/6280/files/tiwidezeleraw.pdf
    • https://cdn.shopify.com/s/files/1/0429/9417/2058/files/regegifimefifijumi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8961/7311/files/21086269352.pdf
    • https://cdn.shopify.com/s/files/1/0434/1288/1564/files/bemujagikanof.pdf
    • https://cdn.shopify.com/s/files/1/0430/7173/3917/files/sawiriparuvapebezivotipa.pdf
    • https://cdn.shopify.com/s/files/1/0435/3431/9776/files/jenovuxeka.pdf
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/jazz_piano_music_theory.pdf
    • https://cdn.shopify.com/s/files/1/0434/5475/9065/files/flyer_design_free_templates.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004cd6.bin
6787d02c4e9efdba64c27dd05229956f0be75260782e09fcdd36c55e4d90dfe1
pdf-font-stream PDF embedded font (sfnt) at offset 0x4CD6 5408 bytes
font_01_sfnt_off00005f18.bin
c1846f9abf1fc669befa1dc539db13c5b4c6ec730d8d9ac300956854e56acff8
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F18 10248 bytes