Malicious PDF — malware analysis report

Static analysis result for SHA-256 c342685f482aa5b4…

MALICIOUS

PDF

57.2 KB Created: 2020-07-31 12:43:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d047a14e9f667a69b2dd710ae147a965 SHA-1: 2b0bf29a8b8ba05a9a77527236d4a7006129158d SHA-256: c342685f482aa5b475dc0b950110a4a4fe07b4533f2da1a298fbbe929cac0548
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple heuristics indicating malicious redirection and link farming. It embeds a link to `ttraff.ru`, which is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'kitab suci agama yahudi pdf' and mentions 'wkhtmltopdf', suggesting a lure for users seeking specific content. The presence of numerous external PDF links, many pointing to Shopify domains, further supports the SEO-based lure tactic.

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=kitab+suci+agama+yahudi+pdf In PDF document text
    • http://files.mtbwithstacy.com/uploads/1/3/1/3/131380175/fiwir.pdfIn PDF document text
    • http://files.minhquando.com/uploads/1/3/1/3/131398253/gifaro_kavezobolafejo_pipamev_morufofeg.pdfIn PDF document text
    • http://files.originalgravitytours.com/uploads/1/3/1/3/131398221/puropo_sasuwaze_wanibumokif_jepasunifiz.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/1/0430/4273/4229/files/30894698911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2208/8354/files/47822864269.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4241/4493/files/vasufojijelezamujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3410/8323/files/49027326905.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8028/6372/files/44235972563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5449/6935/files/jazukalolilelavabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3849/8198/files/72495824255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3929/3589/files/48907257454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8536/4390/files/papawexowawotudijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6028/0982/files/josozutitujixewelexoke.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
🗂 Part of campaign: fullcirclearts.org 5 samples

Related samples 8

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_off0000a3bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3BB 5200 bytes
SHA-256: 2c33497f4e39d84697a8bb0b92fe5b5ec370897d5b8cdddbe9e470531a73cbd2
font_01_sfnt_off0000b575.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB575 10148 bytes
SHA-256: 87cda1858c4bd1bc315d98c2ab288f38eb27d9118dbffd82bef4d500275f49ff

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