Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fabad026de70b7b…

MALICIOUS

PDF

44.1 KB Created: 2020-08-23 03:02:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89c81705b0b09f0989f9084c0c0e7818 SHA-1: c93e52b3a9af8665c3d7b79c236bfed138430b69 SHA-256: 9fabad026de70b7b51afcb7a56a0ebc84fcc7c28726cf82913316d57118879a6
120 Risk Score

Malware Insights

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

The PDF file was flagged for containing a malicious redirector link and a large number of external links, suggesting a link farm or phishing attempt. The primary malicious URL identified is https://ttraff.cc/pify?keyword=acicular+form+meaning. While many other URLs are present, they are predominantly hosted on cdn.shopify.com and are confirmed benign, indicating they are likely decoys or part of the link farm. No scripts were extracted, and the document body contained mostly binary data and URLs.

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=acicular+form+meaning
    • http://files.eastbayareatherapy.com/uploads/1/3/1/6/131606011/votox.pdf
    • http://files.ndmedcan.com/uploads/1/3/0/9/130969573/1513978.pdf
    • https://cdn.shopify.com/s/files/1/0432/9907/8304/files/tv_guide_toronto_bell_fibe.pdf
    • https://cdn.shopify.com/s/files/1/0433/8538/9221/files/vedizodapotewarogaxusosim.pdf
    • https://cdn.shopify.com/s/files/1/0427/8131/1132/files/89658469354.pdf
    • https://cdn.shopify.com/s/files/1/0432/3685/1874/files/31296794247.pdf
    • https://cdn.shopify.com/s/files/1/0429/8198/2361/files/sofajitixenosowib.pdf
    • https://cdn.shopify.com/s/files/1/0431/3081/4626/files/nelak.pdf
    • https://cdn.shopify.com/s/files/1/0433/4691/9579/files/el_poder_secreto_de_la_cabala.pdf
    • https://cdn.shopify.com/s/files/1/0428/7181/6358/files/pamazaleneforozutulam.pdf
    • https://cdn.shopify.com/s/files/1/0448/4546/5762/files/capo_shot_dead.pdf
    • https://cdn.shopify.com/s/files/1/0433/5301/4427/files/xogifavav.pdf
    • https://cdn.shopify.com/s/files/1/0428/7512/5923/files/catharanthus_roseus_propiedades_medicinales.pdf
    • https://cdn.shopify.com/s/files/1/0430/4614/2114/files/rock_the_party_dj_song.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_off00007080.bin
f016b1d00149ae27b00974710f980b7268329c41483ae51341d9d8d9546096b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7080 5012 bytes
font_01_sfnt_off00008172.bin
a5d37b67eff3761482654601ad3a7e94c6ed9f582b9c74180829d3de1163414c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8172 10112 bytes

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