Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bad82eae366fdf2…

MALICIOUS

PDF

45.4 KB Created: 2020-08-19 23:53:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1bf7880565eb50f67a3e33efaadf998f SHA-1: 3ed199d8de6b9ef23f21738b525d6a8f17debb80 SHA-256: 3bad82eae366fdf2d3eeb906464725e7f75b39669caad7b005d9ca60c35b03e3
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The document body, though partially corrupted, contains text related to 'Android google play services stopped', likely a lure to entice clicks. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the primary URL leads to known malicious infrastructure. No scripts were extracted, but the structure and embedded URLs strongly suggest a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.ru/pify?keyword=android+google+play+services+stopped In PDF document text
    • http://wolomok.jwsavageinvestigations.com/uploads/1/3/1/3/131398472/buxisalas_fosimuwe_tivigam_dojadado.pdfIn PDF document text
    • http://files.furmamafactory.com/uploads/1/3/2/6/132695392/kafenaxibu_zijigurodat.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/1/0429/0537/0791/files/mobejagik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6600/7445/files/85430636742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4143/2487/files/pathophysiology_of_diabetes_mellitus_type_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3420/6631/files/23812154324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1905/7822/files/aashto_m_180_specifications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6828/4319/files/gaduwumepakawivoxura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2795/4840/files/37672858183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1164/4324/files/academic_ielts_writing_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5794/6522/files/55558084732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/0665/9493/files/bteup_syllabus_2020_20_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8929/7568/files/89081739116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2471/7723/files/levuroro.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007438.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7438 5392 bytes
SHA-256: 7239aa7038beb19cff7b37dd7955d671dcc640488eda1617285e85e33475673a
font_01_sfnt_off000086a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86A4 10080 bytes
SHA-256: ccd4346d21597a38d4c34445122aa668678dedf7219f32f868cfe87959522ec9

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