Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2faaf5baefdc732…

MALICIOUS

PDF

50.9 KB Created: 2020-08-20 06:07:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a72fc7d154f60888e383df06bd0564d4 SHA-1: ebde71f146e534d28baec98fac52ca1d20ae5426 SHA-256: b2faaf5baefdc7325372057a5d3dbeecd80a468cede041c74ec697463b6b1435
234 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.cc/pify?keyword=exponential+form+calculator+answer', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the intent is to redirect the user to malicious infrastructure. The presence of numerous links and the malicious redirector indicate a phishing or social engineering 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.cc/pify?keyword=exponential+form+calculator+answer In PDF document text
    • http://kixukazaz.moanalipopo.com/uploads/1/3/1/3/131383664/xemakopisetajof-lilut-bakozakoxotunob.pdfIn PDF document text
    • http://files.rebeccalynnphotography.net/uploads/1/3/0/8/130874518/4840188.pdfIn PDF document text
    • http://ketuxi.sondayhousefellowship.org/uploads/1/3/0/8/130814411/basapuxodipufovesi.pdfIn PDF document text
    • http://files.thetravelenduro.com/uploads/1/3/0/7/130776126/9e547.pdfIn PDF document text
    • http://rumun.privatecounsellingandmediation.com/uploads/1/3/0/7/130775565/6f575.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/1/0431/9540/0349/files/rinoskopi_anterior_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6729/files/clickfunnels_image_full_width.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7962/2040/files/cancer_research_brand_guidelines_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6312/2843/files/kebotajizotamolifog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98559129476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2819/3184/files/jirajaviwamefaxekudufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5063/0296/files/17304612647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3651/5224/files/xonebajimin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5911/7222/files/affordable_housing_solutions.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64DE 5280 bytes
SHA-256: 06aa64daf6c9d1ccf99f404dec9fd4de8f887df9258e1a4fa03c6dd09b18cad8
font_01_sfnt_off000076cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76CD 15240 bytes
SHA-256: c65ed902d709ac3d7b9e8c8e637d4ad582ee431ddc9c100c8246047276c51dcc
font_02_sfnt_off0000a7bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7BD 16080 bytes
SHA-256: e3d583ca8131484f6b7e9991674a220a85ec8466745261d702706f92b0246cac