Malicious PDF — malware analysis report

Static analysis result for SHA-256 07a91d1b3a988e0d…

MALICIOUS

PDF

52.1 KB Created: 2020-08-07 15:12:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0c1b132000373b621a932b5bbd31bb08 SHA-1: ed5d2304d19afcf326c7f0f2e1b55f3be6e2345d SHA-256: 07a91d1b3a988e0d7aa978d11c100fe2ae8b47bb126c1308899d52b60708b604
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. This suggests a phishing or scam attempt to trick users into downloading files from potentially compromised or malicious sources. The document body text and embedded URLs reinforce the theme of downloading files, further supporting the phishing lure.

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=ajax+request+download+file+pdf In PDF document text
    • http://files.wellsmusicpublishers.com/uploads/1/3/0/7/130776142/7550875.pdfIn PDF document text
    • http://files.eastcobbyankees.com/uploads/1/3/0/9/130969231/vetap.pdfIn PDF document text
    • http://files.kathypoelker.com/uploads/1/3/1/8/131856012/8f64ce85.pdfIn PDF document text
    • http://files.covdeinzeeeklo.com/uploads/1/3/1/4/131453247/mugizarixepokowus.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn 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/1/0434/1104/6561/files/fegupojebepuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9612/1252/files/jurnal_alkalimetri_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3882/5887/files/xowuvinitolorokitezegobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3997/1736/files/21097825898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2888/1318/files/30110808337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9822/5320/files/xiwukilobitixug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9029/7507/files/kaxifetogir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7949/9940/files/95279005819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6600/7445/files/kerodepenud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6213/2897/files/vusoxuxujasidab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2250/8454/files/kejuzoboz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7128/2079/files/bebikaworitexurobanus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/south_west_gauteng_college_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4017/files/8311745938.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5286/6463/files/asterix_and_obelix_the_golden_book.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000728a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x728A 15612 bytes
SHA-256: 6ec74330dfe9d288ada4a4831c1ba2d66aa6da4be7271dc9d8008ce7438c8d5a
font_00_sfnt_off0000600f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x600F 5384 bytes
SHA-256: cc40c7c75578ce3a6e126b7b8e8c3d49b0a66ed14755a0fdc096dbf5a9894a56
font_02_sfnt_off0000964c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x964C 13944 bytes
SHA-256: 1ac97694e03c96b75113b9492f723a53173b4745ca20be9b5f08ef28b136ac71