Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e126f98b05e1dff…

MALICIOUS

PDF

41.3 KB Created: 2020-08-21 15:38:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cc08a83d2e71bfe1adef71a5f8b29d8c SHA-1: eb67c8434f94bb8739c09a5848de4543cb6e0397 SHA-256: 3e126f98b05e1dffe43be69323d85304dd1cf1746901ba022399885210ba7d09
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify-hosted PDFs, indicative of a link farm. One critical heuristic identified a link to a known malicious redirector at https://ttraff.cc/pify?keyword=picsart+gold+premium+apk+2019. The ML classifier also strongly flagged this PDF as malicious. The document body contains garbled text but includes the same redirector URL.

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=picsart+gold+premium+apk+2019 In PDF document text
    • http://files.lisamariamadera.com/uploads/1/3/1/4/131453062/xufitosenu.pdfIn PDF document text
    • http://wakuji.paynterfineart.com/uploads/1/3/1/4/131406071/473af2aacfcb9.pdfIn PDF document text
    • http://files.theatmpro.com/uploads/1/3/1/0/131070506/1593382.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/1/0444/5811/5239/files/brche_bungsaufgaben.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9532/6887/files/jagojipewagumikoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8612/7009/files/5109884841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5622/5688/files/19269392113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4302/7106/files/movolakuman.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9770/2046/files/mopulomenifiminefunefate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5804/3807/files/13349085888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7505/1413/files/25552552146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5214/6586/files/87990288044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5490/4997/files/79408714334.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 4

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_off000061a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A8 5940 bytes
SHA-256: d71fc2bd6b9adc903633685183285adb1a6f8a77f3349766048743f69195c15a
font_01_sfnt_off000075c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75C6 10128 bytes
SHA-256: 2f01432db1936a0cd7f049adf62fc06a7df1b21d2aa6cb003e9651c513fbe97a

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