Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b77b7c4bcc923a0…

MALICIOUS

PDF

41.5 KB Created: 2020-08-24 08:39:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b5e124813c8363983391b63f6ce6712c SHA-1: d7205c7aa2d7ea3530c873fdaf147fe6275324cc SHA-256: 0b77b7c4bcc923a035413f507b947b6e6de621ed19320abf39e76a3790b38a4d
194 Risk Score

Malware Insights

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

The PDF contains a link farm and redirects to malicious infrastructure, specifically 'https://ttraff.ru/pify?keyword=2008+bmw+x3+manual+transmission+for+sale'. This suggests a phishing or scam attempt, likely delivered as a spearphishing attachment. While no scripts were explicitly extracted, the PDF structure and embedded links indicate malicious intent to redirect users to potentially harmful content.

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=2008+bmw+x3+manual+transmission+for+sale In PDF document text
    • http://files.hunyuansingapore.com/uploads/1/3/0/9/130969018/simogudifimo.pdfIn PDF document text
    • http://files.victoriawindowwashing.ca/uploads/1/3/0/9/130969746/memuj.pdfIn PDF document text
    • http://files.scrantonpartyrental.com/uploads/1/3/0/8/130814900/liwitugekukom-tutuva-tuvafalif.pdfIn PDF document text
    • http://xijigoral.vikkiconley.com/uploads/1/3/1/6/131606490/1542626.pdfIn PDF document text
    • http://files.hiprivatetours.com/uploads/1/3/2/7/132740309/dejivoboxiv.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/1/0434/7795/8822/files/figimowajonetavalenumoson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2099/9064/files/the_vixen_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0835/0615/files/43840876022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2679/7976/files/anti-_aliasing_gaming_performance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4363/2805/files/birthday_card_design_video.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7945/7175/files/is_there_any_ps4_emulator_for_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7812/3680/files/wuragowav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2754/5755/files/psychological_assessment_report.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 6

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_off0000615d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x615D 5752 bytes
SHA-256: 63ef0faa41f284343085c4770953940c47629eaa9f767d4dcc4b43d2d04fde48
font_01_sfnt_off000074e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74E3 10676 bytes
SHA-256: e44ab65879ce32df68ca496a201e6b127ae5eeb51083c0879906f6e9eb762a86

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