Malicious PDF — malware analysis report

Static analysis result for SHA-256 24d0d6cc9a984667…

MALICIOUS

PDF

38.5 KB Created: 2020-08-08 07:20:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4030d9f0db43f197aab435934ae1a6ea SHA-1: 728bda81dc3875bb00c9bbba56e2fb122f60ffd1 SHA-256: 24d0d6cc9a9846679227f0beff37ac6f90e0b3bef2b13b6e40ea4d462c93e9f4
234 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=simple+present+exercises+pdf+test'. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous external links, many of which are hosted on Shopify. The document body, though heavily obfuscated, also contains the primary malicious URL. The combination of these factors strongly suggests a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=simple+present+exercises+pdf+test In PDF document text
    • http://biwexije.rubiesgirlsclubs.com/uploads/1/3/1/4/131437736/zazimoligewuz.pdfIn PDF document text
    • http://files.mdbusinessreview.com/uploads/1/3/1/3/131379340/c0abcb02.pdfIn PDF document text
    • http://files.womensbalancehealth.com/uploads/1/3/0/7/130739212/1b7e5fa52.pdfIn PDF document text
    • http://files.capetownwritersretreat.com/uploads/1/3/0/7/130738993/9099309.pdfIn PDF document text
    • http://somufebi.spotlightingsoutheastchicagoandnorthwestindiana.site/uploads/1/3/1/3/131380213/fotulukik_luminuwowodi_zujinulosuv_nogeva.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/1/0451/9621/4423/files/calendario_anual_2020_para_imprimir_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5391/6053/files/vokotama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5293/4044/files/javascript_timer_repeat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7359/1703/files/71127225614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3003/4085/files/46194117016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5892/9570/files/92230783470.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/lesodolibugujojatas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2770/1655/files/74565938793.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1245/4560/files/defagino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9957/8773/files/adirondack_chair_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1908/2651/files/5427166460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6859/7158/files/dazolofusuxuganiruwaruz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8688/8601/files/luxenowozegibafujug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1265/1170/files/classifying_triangles_and_quadrilaterals_worksheet.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_off00004c05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C05 4940 bytes
SHA-256: 31af071bba2570f2ab9057eab30e0188754d3fc3d182af9c5c6ea71f93c7fa63
font_01_sfnt_off00005cb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB1 10064 bytes
SHA-256: 34c2c47aa754bb2a58f052c2394a5c66ce683760cefebdb0cb65d30c34d03a05
font_02_sfnt_off00007eca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ECA 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71