Malicious PDF — malware analysis report

Static analysis result for SHA-256 faa5d5e359ab3452…

MALICIOUS

PDF

38.2 KB Created: 2020-08-03 22:20:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0361009a3684baa0af0d0e85bfa73104 SHA-1: 0edf2654336c440ecf1d30efa9d29a9026b62359 SHA-256: faa5d5e359ab345276de7c5c925fcdd04afbe82612fc96239a6939a0d65f62af
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of these links, 'https://ttraff.com/pify?keyword=canela+de+velho+bula+pdf', is identified as a malicious redirector. The presence of a visible LOLBin command execution instruction suggests the document may also attempt to execute malicious code or scripts. The combination of a link farm and a malicious redirector indicates a phishing or malware distribution 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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=canela+de+velho+bula+pdf In PDF document text
    • http://vefal.ruiqichen.info/uploads/1/3/1/3/131383949/dexapu.pdfIn PDF document text
    • http://files.saintjameslaconia.org/uploads/1/3/1/4/131407887/bf8a9.pdfIn PDF document text
    • http://files.bumpsinmotion.com/uploads/1/3/1/4/131406173/rizufuwikala.pdfIn PDF document text
    • http://files.rollepodiatry.co.uk/uploads/1/3/0/7/130738859/6798975.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/1/0448/5450/9729/files/chinese_to_english_translator_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/welilavuruwad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7709/8913/files/gordon_west_general_class.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/8542937040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7185/5002/files/sony_str_de445_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8954/9729/files/vijayaniki_5_metlu_telugu_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3071/6314/files/initial_counseling_army.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2168/1315/files/angel_fire_snow_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9482/7418/files/tararipozezejogazufokad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0586/9213/files/58727053055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/foundations_of_parasitology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8289/8840/files/2989445266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9765/7248/files/php_curl_post.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62386903812.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_off0000568a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x568A 4960 bytes
SHA-256: 558c9dfe9de66f6a8226b8fee8e2ff00f424d743eb0b8dbe691f612f6ab8cbb7
font_01_sfnt_off0000676c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x676C 11616 bytes
SHA-256: ddb91c3f96260b61c55000493c2703003028dec82f86d95d930ab08ca1cfbf91