Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddcb730e04a8f7a0…

MALICIOUS

PDF

47.3 KB Created: 2020-08-17 03:13:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 147ccf3812a434706c869f8ef15cb623 SHA-1: 6a44f566aa5909941696a2c0c9e1eb89e920350e SHA-256: ddcb730e04a8f7a00c2952881aba528eb390c13a6b5b3782b5053d2fb4c6a745
202 Risk Score

Malware Insights

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

The PDF contains a link to a redirector that is associated with malicious infrastructure, disguised as a lure for cracked software. The document also hosts a large number of external PDF links, many pointing to benign Shopify URLs, suggesting a link farm or SEO manipulation tactic. The primary malicious link is https://ttraff.com/pify?keyword=amnesia+memories+premium+apk+cracked, which likely leads to a further malicious download or exploit.

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.com/pify?keyword=amnesia+memories+premium+apk+cracked In PDF document text
    • http://jerudob.nourajost.com/uploads/1/3/1/4/131409090/ffda05535.pdfIn PDF document text
    • http://mutukade.laughter4wellbeing.com/uploads/1/3/1/8/131856161/xawodeboma.pdfIn PDF document text
    • http://files.rbsm.me.uk/uploads/1/3/0/7/130739621/4727843.pdfIn PDF document text
    • http://wuzos.heathandhaveringurc.co.uk/uploads/1/3/1/0/131071164/xosoxafoxawepoko.pdfIn PDF document text
    • http://lererow.nmsemm.com/uploads/1/3/1/4/131437987/4459962.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/1/0440/3019/7925/files/paperlessemployee_com_target.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9600/7065/files/74666703517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9832/5671/files/texapapolozufigojumadog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4667/4337/files/28468108011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1102/9667/files/wugiribosigofubodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1553/6793/files/lagu_percaya_aku_cover_feby.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7063/5680/files/vunivowek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/6951/6449/files/bams_colleges_list_in_maharashtra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4373/files/33401731981.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ab2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB2 4236 bytes
SHA-256: e66aa9eae49f1c994ae78122a688ad1e0c66168e8f85b2c20c9f120522074611
font_01_sfnt_off000079b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79B6 5240 bytes
SHA-256: aad6e7a19762e6fe9f351c3484d5a9e0e2eb3a603bb99c74b6334e9c80c5b91d
font_02_sfnt_off00008b67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B67 10752 bytes
SHA-256: 956bd3353a9c3c203264f233c34a28039118d80b242845279674b70888b1bb84

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