Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ee94e08766d741…

MALICIOUS

PDF

47.1 KB Created: 2020-07-20 12:43:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-07
MD5: 4ac64503d80908489cea171f00f0482b SHA-1: 055f61f33d8eb5733e7f8233f6bdbe5469d7b7d8 SHA-256: 32ee94e08766d741f83bc9bb13947c3ac5d823f0b17e3725f6e29651870ad277
202 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous links to PDFs hosted on various domains, including Shopify. The document body, though heavily obfuscated, contains keywords related to a Canon camera manual, suggesting a lure to trick users into clicking the malicious link. No scripts were extracted from this sample.

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.com/wb?keyword=canon%20flash%20600ex%20rt%20ii%20manual%20pdf In PDF document text
    • http://files.inverlochhomecrew.com/uploads/1/3/1/8/131871659/46a40f0055f1.pdfIn PDF document text
    • http://files.ccdcohio.com/uploads/1/3/1/4/131438776/natitotabi_rikaludadu_zalufariw.pdfIn PDF document text
    • http://files.timothylindstrom.com/uploads/1/3/1/4/131452997/8825738.pdfIn PDF document text
    • http://files.iiamartmodels.com/uploads/1/3/1/4/131407036/dutobagujevi.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/1/0435/9431/7981/files/68080175557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6557/3537/files/60959401140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2902/0317/files/91650394279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6979/2668/files/11458750079.pdfIn PDF document text
    • https://duxujevoso.files.wordpress.com/2020/07/19598599003.pdfIn PDF document text
    • https://tugixaforufo.files.wordpress.com/2020/06/lekebifodixatofamogik.pdfIn PDF document text
    • https://jesudutidak.files.wordpress.com/2020/06/mijib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/lulefobekulibuxod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58657968950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1962/4870/files/tixenolugip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32773531818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7832/8221/files/nexogodimagasulew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lexopiwalosadatijasaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5385/0528/files/10353491179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9857/9879/files/88577250367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7564/1247/files/kulidudonemijafoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4379/0760/files/6927913770.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
🗂 Part of campaign: god4ce.com 5 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000079c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79C2 5548 bytes
SHA-256: e54ee413c5fcc0ce008e9f8b318a2131595210a4af0323733e1cfc3e143adcf2
font_01_sfnt_off00008c71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C71 10116 bytes
SHA-256: 3e048c3a5d6ff05f54f206a2a5be687e77dac82f68579d5c670e76849df129d4