Malicious PDF — malware analysis report

Static analysis result for SHA-256 e03e4e1c5c2901ce…

MALICIOUS

PDF

47.9 KB Created: 2020-08-20 05:21:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1231949cbfbc0415d8a589e5feecb785 SHA-1: 0e4c79c5c773fab5bce2b3f5958174882917b1c5 SHA-256: e03e4e1c5c2901ced4a5fdaf7bb65ef7db94fd971afec44150e23c731cb149f1
202 Risk Score

Malware Insights

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

The PDF contains numerous links to redirector infrastructure, specifically `https://ttraff.ru/pify?keyword=hkjc+bet+android+app`, which is flagged as a malicious redirector. The document body also contains this URL and other links to PDF files hosted on Shopify, suggesting a link farm or content distribution network used to obscure the final malicious destination. The presence of a 'download button' lure further supports the phishing or scam 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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=hkjc+bet+android+app In PDF document text
    • http://files.ribbonsbyfir.com/uploads/1/3/1/3/131383247/vapebojokajol_wudesufodipe_lafopijogijiz_runumu.pdfIn PDF document text
    • http://sokeni.precisionfitnessandnutrition.com/uploads/1/3/0/7/130739059/nifurakopuj_nisafujapiv_tejafevezixepa.pdfIn PDF document text
    • http://files.justcoconotchanel.com/uploads/1/3/0/7/130740200/fefuvuji_lubemenipakizuk_jagapo.pdfIn PDF document text
    • http://duruli.alchemistmovement.org/uploads/1/3/0/7/130775840/somafosev_didaja_babukuvuki_gonopoju.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/1/0434/6681/7696/files/78922251549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1085/0979/files/15170741261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8799/4792/files/pazumunowugonewizejikisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38967404473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8403/6761/files/20741019306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/juteb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/hopeful_bam_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5317/0339/files/rufigojonowabisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2270/5063/files/27990694395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6124/7129/files/fusionner_des_en_un_seul_document.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_off00006924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6924 5100 bytes
SHA-256: 7a090697bb4539a23501285be891a6c2e2f4dbea8d3b6c1c03f7477ff8eca15f
font_01_sfnt_off00007a7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A7B 10052 bytes
SHA-256: 7d78d2cff95862b23cd64a8c78d71a869b13f699cb610bfd9ad96e41b91856cd
font_02_sfnt_off00009d0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D0E 16232 bytes
SHA-256: 9a4cbfef1d361b49d4faaeef6ced77ef0fd92f26152dd8eab1109b0e9abbc1b2