Malicious PDF — malware analysis report

Static analysis result for SHA-256 d701475c36e4c4fc…

MALICIOUS

PDF

54.1 KB Created: 2020-08-09 12:33:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ac22fa8b96d06b926363b5f6645d83b9 SHA-1: ac1137d15b3997f3e3c9554b2d81c0f5f0df1d9e SHA-256: d701475c36e4c4fc52be37d0d583f550ed8b2f0d24c4c826253f161b16349af1
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=ba+first+year+book+pdf'. Additionally, it exhibits a PDF link farm behavior, with numerous links pointing to Shopify-hosted PDFs. The document body, though heavily obfuscated, contains the same malicious URL and references to PDF files, reinforcing the lure. The heuristic 'SE_MFA_LURE' suggests the intent is to harvest credentials or abuse multi-factor authentication, likely by directing the user to a phishing page via the embedded link.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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=ba+first+year+book+pdf In PDF document text
    • http://files.glenelgcp.com/uploads/1/3/1/4/131407530/3953484.pdfIn PDF document text
    • http://files.seedsforchangewellness.com/uploads/1/3/1/8/131856271/f866beb8a9e6.pdfIn PDF document text
    • http://files.dns-for-me.org/uploads/1/3/1/8/131857758/vexix_visaxuge_zopawe.pdfIn PDF document text
    • http://files.napfamily.com/uploads/1/3/0/8/130814283/dinolopiga-pizekuvabilipo-bemulizojorebe.pdfIn PDF document text
    • http://files.sherricornett.com/uploads/1/3/1/4/131407214/eeb9c948abe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4104/5145/files/arabic_text_to_word_converter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7587/8564/files/86452122932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1714/2433/files/71556144665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0069/8792/files/retorika_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0481/3721/files/87411778893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3134/7868/files/warhammer_40k_8th_edition_codex_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/8853/8776/files/lactometer_reading_of_milk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3166/4552/files/keranis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1103/0690/files/1383055150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1242/1789/files/10127972201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9603/9839/files/66607979710.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9027/1642/files/moketoremikod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8951/1068/files/58645250220.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006982.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6982 5356 bytes
SHA-256: 88e928b280409bf5240e7f3d9e0b01ef1380e82f89d7adb8f0bc255a49f62a78
font_01_sfnt_off00007bd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BD3 2596 bytes
SHA-256: 82c047ac093810968bc043e1395e19a776fddf61b5ae473d26a3e46c73460b1c
font_02_sfnt_off00008756.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8756 2320 bytes
SHA-256: 5e067315a2bd9524b6254977960f062bb129990ed69868068e29b4596197f3c8
font_03_sfnt_off000091a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91A9 10184 bytes
SHA-256: 418e3545ed966b8650945aee198494205450118f92552579544a2c71e61c5056
font_04_sfnt_off0000b4ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4AC 16224 bytes
SHA-256: a349519ccbdbca3d75704c2becf615ab37801eb1543272228454131dceb83acc

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