Malicious PDF — malware analysis report

Static analysis result for SHA-256 74644e4ea16db963…

MALICIOUS

PDF

45.4 KB Created: 2020-08-20 22:29:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e7813e89ba8fddcc6b2e30cc18a0a4e8 SHA-1: 2f4392ecb79612832bcdf39b2b8e47b3fa7c90a1 SHA-256: 74644e4ea16db9633dddbcebf55af014ab63c73a16526787732893ebe230f875
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body and embedded links suggest an attempt to lure users to malicious sites under the guise of providing access to various PDF documents, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure and embedded links strongly indicate malicious intent.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=billionaire+song++320kbps In PDF document text
    • http://files.treefaeriefotos.com/uploads/1/3/1/8/131871894/8193451.pdfIn PDF document text
    • http://files.kaluppc.com/uploads/1/3/1/0/131071289/tetavosiv.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/1/0431/1246/4550/files/ammonification_and_nitrification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4143/8366/files/8856517809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9568/7328/files/tutorial_on_java_programming_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2249/5389/files/uptet_answer_key_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8867/4967/files/tejonidapego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2724/2914/files/wapulagasikobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5538/0630/files/nekeluzev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6373/6485/files/zambian_catholic_choir_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8463/4530/files/womad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4866/3200/files/takereserenimalezesewuga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1274/2550/files/73740188490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9249/2963/files/70272710535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6013/3030/files/sonuwof.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71DF 5676 bytes
SHA-256: 286f7089a3be8e49af5c710ea1cf7211efdae6ff47a704b55a47d7784523d0dd
font_01_sfnt_off00008536.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8536 10344 bytes
SHA-256: 90f9936684534adeab4f5e001500dfe37b8e6f063e27796a1ec8e5abebfd2dd0

Open this report in the interactive analyzer, or submit your own file for analysis.