Malicious PDF — malware analysis report

Static analysis result for SHA-256 1783744c8c4995e9…

MALICIOUS

PDF

43.6 KB Created: 2020-08-17 16:56:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 61e1e620baf89576f4bde4599d473a14 SHA-1: dec19a2255018c43f96d01ded9de71b3fd51e220 SHA-256: 1783744c8c4995e98ccd63e1272cf0e145741c1bbe0854eaf088aff15c44580d
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to distribute malware or phish users. The embedded URL and the document body both point to the redirector 'https://ttraff.ru/pify?keyword=angry+birds+space+pc+free', which is likely used to obscure the final malicious destination. The presence of a 'download button' lure further supports a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=angry+birds+space+pc+free In PDF document text
    • http://files.germane2germaine.com/uploads/1/3/1/4/131452735/mutigonufegojas_bexozewozik.pdfIn PDF document text
    • http://files.churchholyspirit.org/uploads/1/3/1/6/131606815/wejoxupowe_tisusuz_faredakotiwose.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/1/0428/9072/3487/files/vilidizawikemeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6213/2897/files/32701045056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7767/2868/files/14984823471.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3012/2393/files/group_counselling_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1862/3896/files/95088985315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/35296413186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5757/7122/files/59679893810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4731/2789/files/aptitude_shortcut_tricks_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3859/7539/files/denatesulevudexijatudike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0311/5680/files/munchkin_boilers_troubleshooting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7850/6904/files/gejedatezobigolis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9296/7581/files/neither_nor_either_or.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/2785/1422/files/6205846389.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

Related samples 2

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE5 5524 bytes
SHA-256: 2dad91f00a287ce018f537d3d57e2fa7317eb781ee9c1d1c67829fd79ec0ea9f
font_01_sfnt_off00007db3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DB3 10640 bytes
SHA-256: 7fee554ace43fca732a59ce182c2eecb1488d8aa2dbb2119cfe3907f91e5c797

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