Malicious PDF — malware analysis report

Static analysis result for SHA-256 8aa6c5de36810171…

MALICIOUS

PDF

53.3 KB Created: 2020-08-12 19:57:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dde7b2d21201af64264a730315229211 SHA-1: acf0d155e3c3cc46c3d97525715d869f9274e3ab SHA-256: 8aa6c5de3681017170455e2b63dfeccc99aa9733d08a166f13425aafcba32e1c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains embedded links, with one specifically pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=hikvision+4mp+ip+camera+pdf'. The document body, though heavily obfuscated, contains text referencing 'Hikvision 4mp ip camera pdf', suggesting a lure to entice users to click the malicious link. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm or redirection strategy. The ML classifier also strongly flagged this PDF as malicious.

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=hikvision+4mp+ip+camera+pdf In PDF document text
    • http://vemef.soapurebathnbody.com/uploads/1/3/0/7/130775440/c5782.pdfIn PDF document text
    • http://files.weedspoon.com/uploads/1/3/1/4/131453449/1f39550.pdfIn PDF document text
    • http://files.lynneeast.com/uploads/1/3/0/9/130969746/6426614.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/1/0431/9058/3464/files/tetapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4536/3616/files/gumitokedovajukitar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2036/1629/files/zarelarafip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5992/9503/files/10893293869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3692/6374/files/blender_2._8_modeling.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1184/9890/files/85342944535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7495/3120/files/50530148097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/39395026888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2589/9421/files/xuwenoxadenesot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2356/4957/files/voxen.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off00006a4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A4C 5440 bytes
SHA-256: 4338de4e64a2a1689528a00365e3aadec5afe239226920b641cb16cba727162b
font_01_sfnt_off00007cb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CB0 19456 bytes
SHA-256: 912b0448759e5d0f6d982bace2a3783c70545521d13676ebc1c2ad439511000a
font_02_sfnt_off0000b2a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2A9 16136 bytes
SHA-256: 66bdf0d93cbd021aa67d5dc481453d3016824e45466e79dc2b24854872319c09

Open this report in the interactive analyzer, or submit your own file for analysis.