Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb02bde29d76c367…

MALICIOUS

PDF

47.7 KB Created: 2020-08-09 03:48:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42c38195563171aac14c771f8b7ee351 SHA-1: 909066dfe04a0a62fad61ecd6bd2e3362a526a2d SHA-256: fb02bde29d76c367e83ee01bedcf7b228f12dae55456477854722787100d4fcb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass external link farm, with a primary URL pointing to a known malicious redirector. The document body text, while appearing benign, is likely a lure to disguise the malicious intent of the embedded links. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages.

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.com/pify?keyword=reaching+and+teaching+students+in+poverty+pdf In PDF document text
    • http://files.jeridoo.ch/uploads/1/3/0/8/130874691/7afca27e.pdfIn PDF document text
    • http://files.christianmendozamusic.com/uploads/1/3/0/7/130776266/wonexovoxu_tevunoloxazuju_gimolizo.pdfIn PDF document text
    • http://sariviro.reearthconsulting.com/uploads/1/3/1/6/131606875/xaxitibosi.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/1/0428/9835/8432/files/doworefobose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0840/1316/files/67623421769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2456/9752/files/6229405975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2051/5488/files/82550086182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7755/8681/files/girerusebepodeki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1090/8572/files/figafomanefajur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45366335679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7827/7525/files/elmo_s_world_fish.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0193/6033/files/makkar_ielts_speaking_2020_jan_to_april.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6788/2134/files/ggplot_bar_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/dark_souls_2_agape_ring.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6167/4133/files/50442958583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8251/3574/files/alaba_adios_danny_berrios.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_off00007c55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C55 5552 bytes
SHA-256: ad15719f54e14eb2a2642cd6a0db378329b710570823beb7e37486d389221b39
font_01_sfnt_off00008f48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F48 10088 bytes
SHA-256: e3d56fc60d49fa0e9c92d30279012da84194bb9c57897d67c2e8979a73319096