Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2e745943e288222…

MALICIOUS

PDF

48.8 KB Created: 2020-08-11 11:52:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9071b5657e853c1a178fcbf5f5765b9f SHA-1: 7b74013e499a70ca82e198bcbee30f4ba370e922 SHA-256: c2e745943e2882224c267a6421af832f814ab7ca84d3c67dfbc60e2a3e392962
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=aircraft+structural+technician+pdf'. This URL is presented within the document body, suggesting a social engineering lure. The file also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on cdn.shopify.com. No scripts were extracted, but the primary malicious intent appears to be redirecting the user to a potentially harmful site.

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=aircraft+structural+technician+pdf In PDF document text
    • http://files.wallacebarrelhorses.com/uploads/1/3/1/0/131070625/408eb60e388861.pdfIn PDF document text
    • http://files.burienfire.org/uploads/1/3/0/8/130873728/kazesezeguxetexawin.pdfIn PDF document text
    • http://files.soulsweetproductions.com/uploads/1/3/2/8/132815015/keravipanozel_puduf_rokekunex.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/1/0430/5957/6986/files/alice_in_wonderland_full_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8370/1151/files/18342147841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fadanamimurusekebunom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1216/1685/files/36708225911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4281/5643/files/42076841326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9822/7353/files/furigof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/zizakiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8047/2984/files/namakam_chamakam_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8863/4266/files/revolowoxofulobusuzikemab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2014/1223/files/behavior_therapy_techniques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/viropinufogutov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7783/6703/files/brian_head_utah_weather.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8026/9477/files/bogufegigug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2965/0856/files/10338176279.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_off00007f5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F5F 5232 bytes
SHA-256: 1811ad00233538730a33e7d13531b171cc43eeb68352b4204d5957ffc8e86477
font_01_sfnt_off0000911a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x911A 10704 bytes
SHA-256: aa95d0379a20e77e6cf36941f52e186ba1ebcaadbe9c03735d548fac1c05ae0a