Malicious PDF — malware analysis report

Static analysis result for SHA-256 337944551925450e…

MALICIOUS

PDF

44.1 KB Created: 2020-08-17 07:49:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4438e777f4f58522004cf0f988b631a6 SHA-1: 0e07a30b0b809a80f1ba6145a3e205a60ce5cbaf SHA-256: 337944551925450ea06614a19107fadfac3bfb7758323382eb8157b2073cb052
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=movies++websites+for+mobile+in+hd'. Additionally, it exhibits a PDF link farm heuristic, embedding numerous external PDF links, with the first being 'https://cdn.shopify.com/s/files/1/0431/0515/7284/files/organic_chemistry_acs_study_guide.pdf'. The document body, though partially corrupted, contains text related to 'Movies websites for mobile in hd', suggesting a lure to attract users to click on the provided links.

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.ru/pify?keyword=movies++websites+for+mobile+in+hd In PDF document text
    • http://files.canvasofthemind.org/uploads/1/3/0/9/130969758/1550142.pdfIn PDF document text
    • http://files.dfgcreativeexpress.com/uploads/1/3/0/7/130775027/9087902.pdfIn PDF document text
    • http://goguxi.letterstolawyers.com/uploads/1/3/0/8/130873982/bifadagojideva.pdfIn PDF document text
    • http://nukiwej.carolynnason.com/uploads/1/3/1/3/131381241/rematex_losapalez_jirusabatopeki.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/1/0431/0515/7284/files/organic_chemistry_acs_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8607/8369/files/77981458166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4741/1096/files/wugej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8488/0798/files/10463197660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46150969179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4848/4507/files/nobepitijake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23158701460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4921/2309/files/how_to_download_youtube_audio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4497/7305/files/new_bollywood_movies_mkv_hd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4418/3974/files/suxikojimizodisofoku.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 3

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61AB 5024 bytes
SHA-256: b989ed265ecac677123f0ddf4acea312b0fe7faa767875107be48590901713f5
font_01_sfnt_off0000729b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x729B 10036 bytes
SHA-256: d4c0ce1fe1ab0a9350f016ed9db5f542ed25f8cf2eb6a63abce1842a41482248
font_02_sfnt_off000094f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94F3 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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