Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ffffc4c5d5d0412…

MALICIOUS

PDF

41.4 KB Created: 2020-08-23 20:06:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 651f8f41f7ee1d6d334fe89addb095a2 SHA-1: ac561e6b74e084666475eae2985c81ff69570d9f SHA-256: 9ffffc4c5d5d041298694f413d6087695fab23f727ed48d2b3143dde373b5a84
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm behavior, embedding numerous external links, many of which are hosted on Shopify. The document body, though garbled, contains text related to 'cost budgeting in project management pdf' and the 'wkhtmltopdf' tool, suggesting a lure to disguise the malicious intent. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

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=cost+budgeting+in+project+management+pdf In PDF document text
    • http://files.restorativejuveniledetention.org/uploads/1/3/1/4/131438571/ea989976.pdfIn PDF document text
    • http://bufeme.bathnbloom.com/uploads/1/3/0/9/130969596/f79b3b4.pdfIn PDF document text
    • http://files.journeytothemountain.com/uploads/1/3/0/9/130969983/87528.pdfIn PDF document text
    • http://files.northcountytrees.org/uploads/1/3/0/7/130775373/2500782.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/1/0431/8271/9127/files/1135100356.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0318/3258/files/56728199713.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6012/4061/files/puvusanefeguvetun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9371/1265/files/weather_for_newark_de.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8580/0358/files/30363164293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/service_provider_agreement_template_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39748763391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8312/8214/files/55181003187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4539/6386/files/pitadatukoxixokotonemofa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4017/files/negarisejolulim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9565/4554/files/93351590469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8312/8214/files/govolilikufusupedimu.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
font_00_sfnt_off0000542c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x542C 5564 bytes
SHA-256: e55230a22dcc195c3b85d9ad3bb8ec489526103349b2b7a81f13368ca068a3e3
font_01_sfnt_off000066fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66FC 10460 bytes
SHA-256: 62e7602c5b66a55ec70c9d96981044573e55c8199e4b9b105e51802552185bf5
font_02_sfnt_off00008ab0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AB0 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e