Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a97986c334b2e3d…

MALICIOUS

PDF

39.1 KB Created: 2020-08-06 03:18:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e9062485bc8a6ed3c7feab325038b24e SHA-1: 0ff534e858749188805ffd0aad235801b3b107fa SHA-256: 1a97986c334b2e3df1f40b4a531aa5fbafa463fbe306942cdeac0f2f1e0fbdea
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download for the 'Hunger Games book series'. The document body includes a call-to-action phrase and numerous embedded URLs, many of which point to PDF files hosted on various domains. The primary malicious URL is ttraff.com, which redirects to a page related to the book series download.

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=hunger+games+book+series+pdf+download In PDF document text
    • http://files.ism-irec.com/uploads/1/3/1/4/131411688/lajinatulemewivogewe.pdfIn PDF document text
    • http://zuxezalaj.mayusilkart.org/uploads/1/3/1/4/131482962/bakek.pdfIn PDF document text
    • http://files.hotmilkbreastfeeding.com/uploads/1/3/1/4/131409526/a4b8035a24734.pdfIn PDF document text
    • http://files.printfinishingstore.com/uploads/1/3/1/3/131398573/527217.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/1/0430/8310/4409/files/xinofokutujobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5868/3291/files/vaxak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2214/5943/files/zubazareravovomerit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4015/3505/files/32538972975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2906/1014/files/safufafulowap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1921/4756/files/sajijorapubajef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8705/3471/files/angular_commit_messages.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6552/3862/files/88758694851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4977/0395/files/lirabikisixagatigujawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5845/3918/files/7742166182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0455/7469/files/97919567308.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59E5 5620 bytes
SHA-256: 1d0f140131adc65aa1ec5964a97bac89825fda62cfdae622be8fce6c8f228b9e
font_01_sfnt_off00006cf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF9 10220 bytes
SHA-256: d5be791c9035a97682b89d46d55e899b3c6fc13596891610181647d9893e0561