Malicious PDF — malware analysis report

Static analysis result for SHA-256 85f34b2a428bf961…

MALICIOUS

PDF

40.9 KB Created: 2020-08-14 19:48:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9e2303f744845d1a45fe5c913c50d698 SHA-1: a0d8b4fa4a2ba2550510b715fba7a069f43fbc7e SHA-256: 85f34b2a428bf961375f6c31e71d4fe954a0ae31954a22c9e535e4d530c3ff46
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=pogo+machamp+raid+guide', likely leads to a malicious site. The document also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic to distribute malicious content. No scripts were extracted from this sample.

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.cc/pify?keyword=pogo+machamp+raid+guide
    • http://diliwut.shophazeljames.com/uploads/1/3/2/8/132816066/988bae4682.pdf
    • http://files.theoctaveschool.com/uploads/1/3/1/0/131070841/8684d3.pdf
    • http://files.thejamesbaldwinschool.org/uploads/1/3/0/7/130776714/sinove.pdf
    • http://jotogogu.lisamccafferty.com/uploads/1/3/0/7/130776449/xofuv.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/tobili.pdf
    • https://cdn.shopify.com/s/files/1/0433/4374/1083/files/dotakaro.pdf
    • https://cdn.shopify.com/s/files/1/0437/6277/8264/files/ielts_adjectives_and_adverbs.pdf
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/81878360113.pdf
    • https://cdn.shopify.com/s/files/1/0435/9438/3522/files/livro_after_1_gratis_completo.pdf
    • https://cdn.shopify.com/s/files/1/0443/4133/0076/files/rocky_iv_soundtrack.pdf
    • https://cdn.shopify.com/s/files/1/0437/8427/4069/files/bharatha_rajyangam_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0427/8052/4710/files/85825926438.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75901524911.pdf
    • https://cdn.shopify.com/s/files/1/0428/6939/1527/files/causes_of_internet_addiction.pdf
    • https://cdn.shopify.com/s/files/1/0431/0509/1745/files/baseball_tee_drills.pdf
    • https://cdn.shopify.com/s/files/1/0434/0577/0909/files/adobe_acrobat_to_ms_word_converter.pdf
    • https://cdn.shopify.com/s/files/1/0432/7122/5502/files/wewojemarogas.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_off0000634c.bin
f18bada0c6d21972691bd2fba26514f24866bf0d6be460794cb196230c09fda1
pdf-font-stream PDF embedded font (sfnt) at offset 0x634C 5280 bytes
font_01_sfnt_off0000750b.bin
555d48cb53fcb76582d4ff8909aca9502a4bec7a06c26a7dbb2e5e1933918aef
pdf-font-stream PDF embedded font (sfnt) at offset 0x750B 9920 bytes