Malicious PDF — malware analysis report

Static analysis result for SHA-256 9072bc70b2a9509b…

MALICIOUS

PDF

47.4 KB Created: 2020-08-12 22:21:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 75318442343a733952f3b13415aa08a6 SHA-1: 23739be97c6684ca1a42f2b76d1b106d7d4f63a3 SHA-256: 9072bc70b2a9509b1bad3baf3c61cce6269151bde3349909a909e62343dd5641
234 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, specifically pointing to 'https://ttraff.cc/pify?keyword=master+plan+2020+pdf'. This indicates the document's primary purpose is to redirect users to potentially harmful content. Additionally, a PDF link farm heuristic was triggered, suggesting the document is designed to host numerous external links, likely for SEO manipulation or to distribute further malicious content. No scripts were extracted from this sample.

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=master+plan+2020+pdf In PDF document text
    • http://files.motorcyclevagabondshow.com/uploads/1/3/0/8/130814466/wateluraxamolatugofi.pdfIn PDF document text
    • http://jozelugon.giantequipmentsales.ca/uploads/1/3/0/9/130969723/mimat_pedulun_xuzav.pdfIn PDF document text
    • http://gikogif.rockymountainjackpotshowseries.com/uploads/1/3/2/6/132681268/8156536.pdfIn PDF document text
    • http://zedoveke.lockdowndoorshades.com/uploads/1/3/1/3/131398140/vizeperekajotesuxak.pdfIn PDF document text
    • http://files.survivingmentalhealth.com/uploads/1/3/1/3/131384468/bemuxosomoxe-mubevuk.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/1/0428/5900/4070/files/your_baby_s_first_year_for_dummies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5627/4339/files/85820494376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4815/6835/files/aihw_determinants_of_health.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1593/7948/files/sue_bryce_posing_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3557/3919/files/45761612011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3309/1480/files/mesapujotekaliwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/59970877334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3861/2378/files/chief_accountant_resume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3170/7294/files/wish_sort_by_price.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15796621189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6469/6732/files/watch_joe_dirt_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8143/3242/files/real_blood_cancer_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/49809249685.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007bc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BC9 5312 bytes
SHA-256: fca00ef37a961536c4b7a693abda9430793d88ad591f9ed8fe79b6123f4a0613
font_01_sfnt_off00008de6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DE6 10140 bytes
SHA-256: 69bec459fe768471ef5ceeea69a1f7d1a6c25fa66133cc824de4953af8f83979