Malicious PDF — malware analysis report

Static analysis result for SHA-256 3da55056c052f131…

MALICIOUS

PDF

45.4 KB Created: 2020-07-26 01:39:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 08a41dc47f5657a914159e0167f51504 SHA-1: 8600ef20dda06022ca00d39283b0f3b255afb8c0 SHA-256: 3da55056c052f131c5d3d47b4569ac147da65adf3c5d5969bf9c44fcd25c0ebc
202 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one heuristic specifically flagging a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, suggests a lure related to design templates. The presence of a 'download button' heuristic further supports a malicious workflow. The primary attack pattern involves tricking the user into clicking a link that leads to malicious content.

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.cc/pify?keyword=magazine+front+page+design+template In PDF document text
    • http://files.romanstravelwithcare.com/uploads/1/3/1/4/131407493/8157284.pdfIn PDF document text
    • http://files.colombotourpackages.com/uploads/1/3/0/8/130873708/xulizajelinif-zisuz-datesededezapof.pdfIn PDF document text
    • http://files.amitybrusharborchurch.com/uploads/1/3/1/4/131452799/wafup.pdfIn PDF document text
    • http://files.imandycole.com/uploads/1/3/0/7/130775685/zemekafudimoruri.pdfIn PDF document text
    • http://files.mevideography.com/uploads/1/3/2/8/132816195/pawezoxiviloxam-pixosaxi-majelo.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/1/0439/0522/0763/files/gibotivafufowajubuwevama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1223/5159/files/74011773097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4173/4311/files/7974664308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5103/0430/files/8457274251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3863/8241/files/27628900825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3748/1365/files/widuxedeje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/71312540312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81603963226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7820/6111/files/49590509251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0803/1893/files/88126075514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94260126358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3549/2503/files/34193589750.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_off000074d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74D1 5204 bytes
SHA-256: 5f6efac52b2710c7d2ed1b6b52ade0d3cb4b9d958b8f6e25e696a1fd47e8ea7c
font_01_sfnt_off00008674.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8674 9844 bytes
SHA-256: 71aa5fee74ac2a1873d6e5a8e35ca2d219a516ae4e0a911ae41b408f7d372e44