Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c13930dc735c136…

MALICIOUS

PDF

44.7 KB Created: 2020-10-02 11:49:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4abafc0b809c1204c89940d56630f299 SHA-1: 2fc04ea45a32aa335858b47cda76d80a285ece0b SHA-256: 0c13930dc735c13646e2cb8ef0f942bb50c1a4676d01a17029db311decbaa010
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs pointing to external PDF files, indicating it functions as a link farm. The primary URL, 'https://gettraff.ru/strik?keyword=2002+jeep+wrangler+sahara+owners+manual', suggests a lure related to vehicle manuals, likely to attract clicks. The ML classifier strongly flagged this PDF as malicious, and heuristics confirm it is a link farm on disposable hosting, designed to redirect users. No scripts were extracted from this sample.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://gettraff.ru/strik?keyword=2002+jeep+wrangler+sahara+owners+manual In PDF document text
    • https://site-1038967.mozfiles.com/files/1038967/70361753319.pdfIn PDF document text
    • https://site-1036785.mozfiles.com/files/1036785/70382210762.pdfIn PDF document text
    • https://site-1038782.mozfiles.com/files/1038782/fezov.pdfIn PDF document text
    • https://site-1037276.mozfiles.com/files/1037276/93190316136.pdfIn PDF document text
    • http://files.idontknowwhatimdoing.org/uploads/1/3/1/3/131379803/3114545.pdfIn PDF document text
    • http://daxapa.mycherishedthoughts.com/uploads/1/3/1/4/131406925/bepusefigodasafut.pdfIn PDF document text
    • http://takofibe.i-a-m.tk/uploads/1/3/1/4/131407377/c94a06d050f37d.pdfIn PDF document text
    • http://files.sassyhats.net/uploads/1/3/1/8/131856173/gelivupelaroken.pdfIn PDF document text
    • http://files.apamperedwoman.com/uploads/1/3/0/8/130814783/5642150.pdfIn PDF document text
    • http://files.jsteinfoto.com/uploads/1/3/1/0/131070993/4956968.pdfIn PDF document text
    • http://dafas.urbanreach.com.au/uploads/1/3/1/6/131606490/bogivuda.pdfIn PDF document text
    • http://files.precosomnasveterad.com/uploads/1/3/2/3/132303009/zunufetob-noxok-buzej-lobesi.pdfIn PDF document text
    • http://xavele.evansvilleultimate.com/uploads/1/3/1/4/131452938/07ce83e.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/1/0437/5366/8769/files/lovegozefakekenogis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6753/9605/files/31760828469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/6681/4375/files/452_area_code_australia.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 8

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_off00006607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6607 5580 bytes
SHA-256: e68460c9e947625ca04c78c3b1946243a3a60eb96b6a82cf5ec5ea7fe5687069
font_01_sfnt_off000078e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78E9 14324 bytes
SHA-256: e57d2721f2aa2255c394cbb0f2be23c71f4a74e2377919eb343ef9295bb24b71

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