Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c44a56e63550bce…

MALICIOUS

PDF

39.7 KB Created: 2020-08-14 07:44:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 341a16ad0b7233ca6be708357f39bbbe SHA-1: cb56e7a05a48a9d89a755cc8ca1dc1d2ea327997 SHA-256: 3c44a56e63550bceaad7f1994d6f9a4e9e32554a3fae9cb8280207f7afc1ab9b
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. This URL is used in conjunction with a lure related to 'google account manager 5.1 apk frp', suggesting a phishing or credential harvesting attempt. The document also contains a large number of embedded links, many pointing to Shopify domains, which is indicative of a link farm used to obscure the final malicious destination. The presence of a 'download button' heuristic further supports the 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=google+account+manager+5.+1+apk+frp In PDF document text
    • http://fanex.christthehealer.org/uploads/1/3/1/0/131070197/jenexabeze.pdfIn PDF document text
    • http://files.kaelynschmidtdesign.com/uploads/1/3/1/1/131164479/6f30c15faf.pdfIn PDF document text
    • http://pinumode.gaslampgiftgallery.com/uploads/1/3/0/7/130738721/judofemuvuva.pdfIn PDF document text
    • http://files.kpadron.com/uploads/1/3/1/6/131636828/5243052.pdfIn PDF document text
    • http://files.flyinglessonsscotland.com/uploads/1/3/1/3/131382092/karugobenimi.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/1/0431/5293/3020/files/bozogeminanip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9679/3503/files/92319076452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9993/1295/files/susujovuzesutamejut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3492/7513/files/vijibawibebesaxagetatat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2749/6087/files/dajopigotemaladezawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/4774/3651/files/a._d._the_bible_continues_season_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2599/5688/files/anime_minecraft_skins.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4274/3207/files/46316198959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6467/1909/files/dalugi.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 7

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_off00005bc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BC2 5460 bytes
SHA-256: 22a1d2b1d60742272e98183deb576423f250dae9029f5b1fd740c8e5be5e4208
font_01_sfnt_off00006e5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E5B 10588 bytes
SHA-256: 65fcc90712fb5a23ba0529b7974778cba4d3664cb6218562b19e039eb87aebee

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