Malicious PDF — malware analysis report

Static analysis result for SHA-256 70d2a55377b678eb…

MALICIOUS

PDF

53.0 KB Created: 2020-07-26 09:11:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d808dc232ac68b246f65511f82cddc98 SHA-1: 57a36944259d213470414150054f0e1fff19ea71 SHA-256: 70d2a55377b678ebbca3bbbe7c661bf375fad04e0c2ea73c5b206ee38408ec1b
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links to external sites, many of which are part of an SEO link farm designed to obscure malicious activity. One prominent URL, 'https://ttraff.ru/pify?keyword=calculator+hide+app+lock', is identified as a malicious redirector. The 'SE_PAYMENT_REDIRECT_LURE' heuristic strongly suggests the document's purpose is to trick users into fraudulent financial transactions by impersonating legitimate payment instructions. No scripts were extracted, but the overall structure and heuristics point to a phishing or financial scam.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.ru/pify?keyword=calculator+hide+app+lock In PDF document text
    • http://files.wandapayne.com/uploads/1/3/0/7/130739567/e9f4b5f19c4877c.pdfIn PDF document text
    • http://files.gvai.org/uploads/1/3/1/4/131453917/dijad-kutajezogak-zomulam-bajomeriko.pdfIn PDF document text
    • http://files.regulatorycheckbook.org/uploads/1/3/1/4/131453536/fikunugutumowi_fenazaxuwanezuj.pdfIn PDF document text
    • http://files.wendytanus.com/uploads/1/3/1/4/131437532/53a03a8cb08.pdfIn PDF document text
    • http://files.washington-commons.org/uploads/1/3/0/8/130814411/xulem_pujifajikizuv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pejuzesuloroxutebed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4922/2298/files/pepudopatakolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9377/8837/files/vobirok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0154/3831/files/lepaliveju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4503/4911/files/33781085913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/71268729738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1987/7026/files/tetojatafisamavilemigivuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6958/8124/files/pasuxizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6998/7223/files/48147647645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5523/4710/files/55498511267.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9949/6351/files/buvomewufizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8090/8951/files/51119016833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3343/6071/files/vupekuxiromaxasat.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000072ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72AE 4848 bytes
SHA-256: 96561dc8da191ee30b22d4879060d1443137114400cc4af4eedb5722e5b6e3b0
font_01_sfnt_off00008331.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8331 2012 bytes
SHA-256: 98de79b297e3797e740cfbde3538a37bcda84e2cac2672723d669a8421f405b8
font_02_sfnt_off00008c68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C68 10456 bytes
SHA-256: 30d7ca0464c8ea4d990e4f3001db07fb3a62a3180c15285ae9bc40b65e3bf65f
font_03_sfnt_off0000af88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF88 16664 bytes
SHA-256: 940587323d1947cc4b80e71b5b4e07368006354cf7486a89facd564ccfbbb5f6

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