Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1d8dbb0cfe46a99…

MALICIOUS

PDF

56.0 KB Created: 2020-08-09 22:58:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d62c619e6dc34edd37b552b5059b328b SHA-1: fe7185761aed852d78921225190474fa16d13954 SHA-256: d1d8dbb0cfe46a99adaa0fedde9a03d60621c57813eda54d2ee09c622dfc9412
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link that points to ttraff.cc, a known malicious domain. The document body also contains numerous links to PDFs hosted on Shopify, likely part of a link farm to improve SEO for malicious content. The presence of a 'download button' heuristic further supports the lure of downloading a file. The primary malicious URL is https://ttraff.cc/pify?keyword=dictionary+english+to+tamil+meaning+free+download+pdf.

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.cc/pify?keyword=dictionary+english+to+tamil+meaning+free+download+pdf In PDF document text
    • http://files.andymcracing.com/uploads/1/3/0/7/130740262/ruxonero_lerulu_buxapiv.pdfIn PDF document text
    • http://files.center4healthandsdc.org/uploads/1/3/2/8/132815318/kotilulogemamadofane.pdfIn PDF document text
    • http://files.earthcraftpermaculture.com/uploads/1/3/2/7/132740536/3787877.pdfIn PDF document text
    • http://files.mendedfaith.com/uploads/1/3/0/7/130739311/919953.pdfIn PDF document text
    • http://files.jaysuneatstaipei.com/uploads/1/3/1/4/131408581/niwaxe_farajevevaza_vuranepulezube.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn 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/1/0434/9889/7574/files/bapopefex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1373/2512/files/medical_surgical_nursing_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2742/1608/files/puwedodiwawomureboxipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25322908130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7316/6744/files/66090581552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/wenowopibabugozanibuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9316/4181/files/disusewutenewawulutepeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9619/5737/files/45594778741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4514/3206/files/design_as_art_bruno_munari_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0073/3596/files/pirokaputenegusaxomabewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2817/5265/files/robosejenebozokunofizejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6231/2611/files/nezonarekozepow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8140/9436/files/wimafodir.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 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
stream_004_off00007022.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x7022 19116 bytes
SHA-256: 6d401934d9f29390103db3a45a057b2352793366fdc66d26670266ebc74c8ea8
font_00_sfnt_off00005d5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D5F 5548 bytes
SHA-256: 58dc6deea16e51c523b11904b305932b4022bfcece95ee9265071d52e6c69647
font_02_sfnt_off00009999.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9999 13752 bytes
SHA-256: 2b067ba37d9354990a13412be48548436993dd72f806e4e9c3e6ccdde52a7057
font_03_sfnt_off0000c3fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3FE 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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