Malicious PDF — malware analysis report

Static analysis result for SHA-256 fac1bf92b59a9cfe…

MALICIOUS

PDF

34.5 KB Created: 2020-08-21 20:39:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6f7ca393e9f08933f612a7a3af5283e6 SHA-1: 904d050d90df6d3d7963a7faa44b9c6b7b18b603 SHA-256: fac1bf92b59a9cfeb32e77eef0a0f847fa0a808608e7ac59b8bc2c1e0e23cbfe
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, many of which are hosted on Shopify but ultimately redirect to potentially malicious domains. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is presented as an 'almont colorado weather report'. The document body, though heavily obfuscated, contains this lure text and the malicious URL. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content through a large number of seemingly benign links.

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=almont+colorado+weather+report In PDF document text
    • http://files.fairwaycommunity.com/uploads/1/3/0/8/130874610/zirubote.pdfIn PDF document text
    • http://riwasade.milieu-art.com/uploads/1/3/0/7/130740145/pafedorukoxus_poxif.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/1/0436/9724/2280/files/dikux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8945/3473/files/sajaselozejuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/2500557594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/7387/4594/files/benny_goodman_clarinet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2922/4857/files/ageless_body_timeless_mind_full.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6238/6079/files/noxonofomun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4504/4902/files/vavevuvewaforep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4978/8327/files/cesur_yeni_dnya_yandex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/0201/4357/files/french_language_guide_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/brosimum_gaudichaudii.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1516/0487/files/ashokan_farewell_violin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0128/2711/files/xetep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6770/3457/files/barbusse_feu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4211/9592/files/2266881710.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_off00004a8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A8A 5216 bytes
SHA-256: 119c233f2a7b59d649eb823ab8f81a553c4e162058593dab69fbc09c91420405
font_01_sfnt_off00005c1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C1F 9796 bytes
SHA-256: 6108fc2fea95b162fbae7577964d85cee8722be39c03005ca2e5c8d5b8b359c1

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