Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b8dfa2472f77f20…

MALICIOUS

PDF

45.7 KB Created: 2020-08-03 03:13:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 410a1179ff948fd0c8e066a656106d55 SHA-1: 33d120324f4df29a8f68b9672cfc18cebac550f3 SHA-256: 4b8dfa2472f77f20cda911dad03ec8ac9da680cc359cbf6cd2ff590d921b2cc1
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one specifically identified as a malicious redirector. The document body, though partially corrupted, contains the URL 'https://ttraff.cc/pify?keyword=git+set+upstream+branch' which is flagged as malicious. The presence of numerous links to external PDFs, many hosted on cdn.shopify.com, suggests a link farm or SEO manipulation tactic, potentially leading to further malicious content or phishing attempts.

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=git+set+upstream+branch In PDF document text
    • http://files.huttdesigns.com/uploads/1/3/1/3/131379678/f896e90dac.pdfIn PDF document text
    • http://files.studyyourwaynz.com/uploads/1/3/1/4/131454549/8450173.pdfIn PDF document text
    • http://files.louiskugelman.com/uploads/1/3/0/7/130739593/voxurunuzerujiv-kixorunifaz-zagala-vibebi.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/1/0430/9857/0909/files/pivawuxedulumosuxul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0968/7208/files/wuzudokewove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4949/2384/files/50680847035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74731072541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7373/2768/files/virobuzidatokejenosolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1396/3939/files/buxexugomakodosojorabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5723/1525/files/32921018278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0910/6335/files/gafiponejoxenelakug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7573/8527/files/te_quiero_adorar_letra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4094/8892/files/potion_of_harming_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7309/3288/files/watixisitemufefisawedawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8579/8301/files/dibabuzatepivisumeso.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 5

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_off00007401.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7401 5312 bytes
SHA-256: e2979b37ce7cc37574583a25d629327dd8871bed99a6f6b435624700d4d52299
font_01_sfnt_off000085e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85E1 10680 bytes
SHA-256: 6bdb18ac649cde68820eaccad1eebde44373f65f3c5c86c1211f98cfe8e2aa04

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