Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f5e5737881c58d2…

MALICIOUS

PDF

39.6 KB Created: 2020-08-23 05:17:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f6a0f4aad0f15c3fddbdbffbb9d0b5bf SHA-1: fe55b84a5cc49e1523d0c191dd797e8e6f3ab282 SHA-256: 7f5e5737881c58d21270f3fd573a535c81fdc5c82298494bffd914703dfe3441
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'sustainability report singapore sgx' and the malicious redirector URL, suggesting a phishing or scam lure. The presence of numerous links to external PDFs, including benign ones on Shopify, indicates a link farm strategy to potentially mask malicious activity.

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.cc/pify?keyword=sustainability+report+singapore+sgx In PDF document text
    • http://files.popculart.com/uploads/1/3/1/4/131452997/8342180.pdfIn PDF document text
    • http://zuvikal.virtual2proto.com/uploads/1/3/0/7/130776659/jiwivaw_kabux_nolusuponujope.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/1/0427/6640/1692/files/vutitikipetalud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5560/4134/files/zesikewokolobofapenuti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3003/6123/files/bendix_brake_catalog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4167/6694/files/batman_the_killing_joke_comic_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0292/0086/files/antigeno_prostatico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6501/4432/files/giguxifesefisuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9729/9869/files/report_illegally_parked_car_brighton.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1021/8391/files/dejozoveg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1222/7225/files/searching_meme_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4364/2792/files/fifty_shades_of_grey_by_christian.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5667/7543/files/ayahuasca_dieta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/20332393160.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 1

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_off00005e87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E87 5400 bytes
SHA-256: 719a8904cf329585100cf2be4550117c4c88ebac1a72455e61a3b9e777a93baa
font_01_sfnt_off000070ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70ED 9532 bytes
SHA-256: 4c9f9d7008fc0263acdd9d9b0bb4be2788885d19195a84aff08ebbb39479e850

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