Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3313c573efbbc88…

MALICIOUS

PDF

42.9 KB Created: 2020-08-13 04:26:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2fb900884fa36eaebf0f197c038e6157 SHA-1: 970fc2b09b0c73c78d88394c18aa826f4d91aa35 SHA-256: e3313c573efbbc88003fe81286cbe7cb2dbadecc305af9cd7d57e08836344b66
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing indicating a link to a known malicious redirector. The document body, though heavily obfuscated, contains text fragments and URLs that suggest a lure for users to click on malicious links. The primary malicious URL identified is ttraff.ru, which is likely used to redirect users to further 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=british+english+accent+training+pdf In PDF document text
    • http://files.scottishfarmlandtrust.org/uploads/1/3/0/7/130738596/3446773.pdfIn PDF document text
    • http://files.richardreedconstruction.com/uploads/1/3/1/3/131397987/084d92c.pdfIn PDF document text
    • http://files.redvalleyfarm.com/uploads/1/3/2/6/132683000/katasosezefa.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/1/0432/1660/1249/files/6095126482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8495/5300/files/center_parcs_sherwood_activities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/42227373274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/13946632626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4066/7810/files/41171190989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65294746239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5644/8156/files/54868973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3064/9749/files/blank_baby_shower_bingo_cards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7222/3387/files/10915155252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8365/3535/files/6306426667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5541/5445/files/janbaz_novel_by_abu_shuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2246/6720/files/xexexofikedimer.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000053fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53FA 5468 bytes
SHA-256: 0111d2de0c6c4a4acf88a7940418d3df5f9155bdac3b4e4a5d637d0dfa8f055c
font_01_sfnt_off00006689.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6689 10088 bytes
SHA-256: 486b73457a1b6eb83a2e90d63b26bc94fdac5b0ecce09ff9051acf450970327c
font_02_sfnt_off00008958.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8958 16144 bytes
SHA-256: 2a5f1667c2e343500efde63e3dd6a136498333968b1680966ac5eb34589f1174

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