Malicious PDF — malware analysis report

Static analysis result for SHA-256 fae96218eea1ba43…

MALICIOUS

PDF

43.2 KB Created: 2020-08-27 15:01:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d5c1c29b4eaf17a4689892cc1df17c84 SHA-1: 7349e5fa1dac1ad4d6d5de58330f5a8071150df5 SHA-256: fae96218eea1ba43a33eeca4351196536c2aba09da9dc650b7219ed9e63725d8
202 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one heuristic specifically identifying a link to known malicious redirector infrastructure. The document body and other extracted links suggest a lure related to 'psd nature backgrounds', likely a pretext to encourage clicks. The presence of a 'download button' heuristic further supports the deceptive nature of the document. The primary malicious IOC is the redirector URL.

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=psd+nature+backgrounds+for+photoshop+free In PDF document text
    • http://gotul.outreachchemistrycloud.com/uploads/1/3/1/4/131407089/zirikajasaju_nuroko_nifoso.pdfIn PDF document text
    • http://pilaj.mrfitzbiology.com/uploads/1/3/1/3/131378950/6519025.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7587/1654/files/13015919756.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mulobovapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0488/6166/files/ielts_answer_sheet_listening.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6574/5314/files/metabolic_encephalopathy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9971/6770/files/75818969864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1687/1336/files/59950835335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/5994/9218/files/husky_riding_lawn_mower.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7335/5419/files/23628374920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23158701460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4931/9577/files/37622600714.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

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005db3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB3 5424 bytes
SHA-256: afd2c014d5e9eb0a0921122df1712fa056973996fd2cdb7376a3ccc1ae98aa14
font_01_sfnt_off0000700b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x700B 9924 bytes
SHA-256: 97a4bfbc36591b923f2f9c69f1890b6dff85113b997c2a928295306225830ff3
font_02_sfnt_off000091f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91F6 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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