Malicious PDF — malware analysis report

Static analysis result for SHA-256 e85fefa7e63d1086…

MALICIOUS

PDF

36.4 KB Created: 2020-08-23 04:50:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 99719fd42020ed62d6d2f5c51de688a4 SHA-1: 308e29bde6b6fff061e9eb52bb33492be866b465 SHA-256: e85fefa7e63d1086fbb5acea295d092197ebc653a83ddfb26edebc44a518d09c
194 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to Shopify domains hosting other PDFs, which is indicative of a link farm. One of these links, 'https://ttraff.cc/pify?keyword=weather+report+durban+today', is flagged as a known malicious redirector. This suggests the document's primary purpose is to lure users through a deceptive link to a malicious site, likely for phishing or to download further malware.

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=weather+report+durban+today In PDF document text
    • http://files.jhwolfanger.com/uploads/1/3/1/8/131857818/3249006.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0477/1999/files/80323643970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8460/1758/files/pubopowuxeweloru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2375/3635/files/gebur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7679/5030/files/91297937693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4855/9004/files/traditional_bowyer_s_bible_volume_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/0858/5891/files/skyrim_anti_crash_mod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9672/7957/files/8548026816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8555/2030/files/how_to_play_arpeggios_on_guitar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6056/0021/files/karejobuvupegijimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/6263/5168/files/argonautika_mary_zimmerman.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 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000045af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45AF 4924 bytes
SHA-256: b713578649de6a587407b60772df3d4e016f64038809fde0a7eb3863d26830d0
font_01_sfnt_off00005668.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5668 9532 bytes
SHA-256: 7ace984dc8c13ee6f5f971b9cb899507a7e3e53976454f94892e0698459e9e20
font_02_sfnt_off00007704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7704 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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