Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae840be0bb4d5f1f…

MALICIOUS

PDF

33.5 KB Created: 2020-08-09 01:20:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad29ba1f6ce2f02b53680d6b946ba723 SHA-1: b63d195c3cfd750c91e0f4403c6b679fb1e5e3ec SHA-256: ae840be0bb4d5f1fb15f6d2d3d96e854f2a305d03f9eace0895447385d379115
150 Risk Score

Malware Insights

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

The PDF contains numerous links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a 'Canon ip2700 user manual pdf' and includes the malicious URL, suggesting a lure for users seeking printer documentation. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm designed to distribute malicious content or engage in SEO poisoning.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=canon+ip2700+user+manual+pdf
    • http://files.clubdanger.com/uploads/1/3/1/4/131406222/xufuleva_lubagatalozam_xagufejuloto_kuzezabizavupow.pdf
    • http://files.perfectpickems.com/uploads/1/3/0/7/130776607/nalolipe-tonaxuw-direzi-galuraxisiso.pdf
    • http://files.danversfreshmarketplace.com/uploads/1/3/1/1/131164382/70546.pdf
    • http://files.iraqueer.org/uploads/1/3/1/4/131483098/mavevozemotudes.pdf
    • http://xufibow.redbankpsych.com/uploads/1/3/1/3/131398455/ximazepu_nufomaf.pdf
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/zaruwojuginapurajag.pdf
    • https://cdn.shopify.com/s/files/1/0437/1608/3877/files/zasoxivupofuvigowaleseb.pdf
    • https://cdn.shopify.com/s/files/1/0438/5662/5829/files/zodadi.pdf
    • https://cdn.shopify.com/s/files/1/0435/1967/2472/files/94469078888.pdf
    • https://cdn.shopify.com/s/files/1/0430/9480/2581/files/56716670922.pdf
    • https://cdn.shopify.com/s/files/1/0432/3246/0960/files/84392361524.pdf
    • https://cdn.shopify.com/s/files/1/0438/3604/7522/files/a_new_textbook_of_americanism.pdf
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/xijorek.pdf
    • https://cdn.shopify.com/s/files/1/0428/1804/4063/files/14917253151.pdf
    • https://cdn.shopify.com/s/files/1/0431/2216/3866/files/mobaxipilulesifupebuva.pdf
    • https://cdn.shopify.com/s/files/1/0433/8044/1238/files/batavenav.pdf
    • https://cdn.shopify.com/s/files/1/0431/7108/6485/files/40436498322.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_off0000461c.bin
dbf1345f4d8335c045211111b0532d8833e0aa31116076efea8f340ab8eac7a0
pdf-font-stream PDF embedded font (sfnt) at offset 0x461C 5448 bytes
font_01_sfnt_off0000588a.bin
20e72821b71f833d3d6102ac7bdfc619150c3711d04c4dbbf5d6a3700d2f07eb
pdf-font-stream PDF embedded font (sfnt) at offset 0x588A 9536 bytes