Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bbccc2229f43c4e…

MALICIOUS

PDF

48.3 KB Created: 2020-08-11 09:31:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b193758f5fe2a19684a398150dda14a9 SHA-1: c3d8ddad16e817295220640455086bac8102fb90 SHA-256: 3bbccc2229f43c4ea65ed2096816fdee957346612dff841ff3a329458090fa0c
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and link farming, specifically pointing to a redirector at ttraff.com. The presence of a 'download button' lure and the ML classifier's high confidence score further support a malicious intent. The document body, though obfuscated, contains the primary redirector URL, suggesting it's used to funnel victims to potentially malicious sites.

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/pify?keyword=chaitanya+charitamrita+pdf+in+bengali In PDF document text
    • http://files.littlefrenchmarketcompany.com/uploads/1/3/1/4/131483209/9342348.pdfIn PDF document text
    • http://loxus.docsjoininghands.com/uploads/1/3/1/3/131380505/9cadb734cf44.pdfIn PDF document text
    • http://files.buycolorfest.com/uploads/1/3/0/7/130739198/d54bbf007eed.pdfIn PDF document text
    • http://files.gilroyffa.com/uploads/1/3/1/3/131382841/2c24e44cb5b82.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/1/0428/7306/1532/files/4856325805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6999/7207/files/xijadofewezegazos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/4364/6614/files/an_image_of_africa_racism_in_heart_of_darkness.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2218/6653/files/pubiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9785/8972/files/durubovopujojagukipugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0951/5413/files/pejojobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2086/0064/files/14290174366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0412/4571/files/92406274701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0891/7657/files/87583658324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6640/1692/files/aleister_crowley_deutsch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0545/1174/files/20289024934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8778/2297/files/8975915556.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005df2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF2 5536 bytes
SHA-256: a506a1980eb124b12bbff388872c561bf5a897e424bcfa5ef534127837e01fcf
font_01_sfnt_off0000709c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x709C 6384 bytes
SHA-256: 312714588259f5f535ffbfff87e959846e8fbc38b7cbb9332391303f7322b036
font_02_sfnt_off0000858f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x858F 15004 bytes
SHA-256: e4b694d781bde864c01e0bc9cc6d6d1fd227b5ee0f9bb9ca46e4fbab19093c32