Malicious PDF — malware analysis report

Static analysis result for SHA-256 14055c9bf51d1119…

MALICIOUS

PDF

54.4 KB Created: 2020-08-20 03:04:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8001942e9c275dcf9ac10a7d808fb03 SHA-1: 42e33e4770504491e88244ef80e76692f4aefc1c SHA-256: 14055c9bf51d1119173d60a555fa79b753f52eb135ea9bd9c022aed6ee1552d8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body and heuristics indicate a lure related to 'Epreuves brevet reportees' (reported exam results), redirecting to 'https://ttraff.ru/pify?keyword=epreuves+brevet+reportees'. This redirector is part of a link farm strategy, likely to manipulate search engine results or lead users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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=epreuves+brevet+reportees In PDF document text
    • http://tijeworow.livingnativity.org/uploads/1/3/2/7/132740405/mivuvidurofopimilak.pdfIn PDF document text
    • http://files.ozarkminis.com/uploads/1/3/0/7/130776046/3631247.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0933/5715/files/23682288097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5819/1768/files/62692720009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8005/5958/files/88820318308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/5910/6212/files/dotemako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1030/9787/files/software_borland_delphi_7_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7070/8125/files/2006161919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6677/8009/files/zeledav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2705/4237/files/basugukasux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0672/8091/files/somewhere_from_west_side_story_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2360/4631/files/wolfgang_puck_pressure_oven_recipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2152/5407/files/barcelona_map_metro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8662/4406/files/captive_prince_manga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7474/0639/files/fobupisiburelajimuzuka.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

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006655.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6655 4456 bytes
SHA-256: 1374d73b19b1e87463e8e46df929f6091e8ecdb3944c109d082c0c2def711ab5
font_01_sfnt_off00007585.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7585 2484 bytes
SHA-256: 3957183e8ce92d98792d4d932155d0057f4773d25fcb72ecf8e2056c5eb9c99e
font_02_sfnt_off0000802a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x802A 12144 bytes
SHA-256: 540cfc32996d938dc1e8bf9629c14430db88b39e55e1a9ab44d8c4d075207c29
font_03_sfnt_off0000a723.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA723 16208 bytes
SHA-256: f76e53b1165c770ea72ceccb5e808e1d48d2b426d0b5e274530350a00bad707e
font_04_sfnt_off0000bc62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC62 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176