Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cfa9378bb4e905f…

MALICIOUS

PDF

35.7 KB Created: 2020-08-19 04:30:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 56fae3f24e517811eb90b478afd90632 SHA-1: 526570b9e5a2fb63d9474f5be8d878bbeb9f0fbe SHA-256: 4cfa9378bb4e905fbf93ada123756fd9987934f6d5857ab67069833676b65263
194 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, disguised as a search result, redirects to a malicious domain (ttraff.com). This suggests a social engineering attack aimed at redirecting users to malicious content. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine the exact payload.

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=pak+army+song+video++mp4 In PDF document text
    • http://files.breathlifeministries.com/uploads/1/3/0/7/130775916/tafirofowuwesigeker.pdfIn PDF document text
    • http://pegafikud.bayareadragonswrestlingcenter.org/uploads/1/3/0/8/130874189/949efb9af58ca9.pdfIn PDF document text
    • http://dujonu.islshenzhen.com/uploads/1/3/1/6/131606201/mafez.pdfIn PDF document text
    • http://dunilop.theroanokerestaurant.com/uploads/1/3/1/4/131437254/wimokitaj.pdfIn PDF document text
    • http://files.nightsongpettingzoo.com/uploads/1/3/1/6/131606121/zegodikaxa.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/1/0430/9378/6791/files/how_to_check_spam_on_gmail.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9189/0071/files/35595170628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/tugagaroranugewarunapiso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4206/1986/files/gabolotuvuzuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2133/4690/files/lawigagovuzama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3167/4535/files/59280366761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1624/0807/files/list_of_valid_email_addresses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5072/9634/files/widujunudemavopupan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5832/1821/files/53713243206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7777/9100/files/dr_sunday_adelaja_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5896/1320/files/guided_reading_level_for_8th_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuwuvedalolavotidexetugom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7435/5351/files/kovosugorobixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5891/3689/files/ketijefebab.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_off00004dd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DD9 5560 bytes
SHA-256: 017b7ce6f7c40ad794fc84f17e670e7a3957c7f8c02069608098424f254abeb7
font_01_sfnt_off000060c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C9 9672 bytes
SHA-256: bf443efdcf1b9c0775726a8ecadf28458d0bcd197fdafed2ca4fdab4705c9c55