Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7a922ed00eee7fd…

MALICIOUS

PDF

64.5 KB Created: 2020-08-11 18:33:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 451bd69f1342da2b00141c811cba23db SHA-1: 428d83cffcbf8abfa7d3a792571bcdf525670c99 SHA-256: a7a922ed00eee7fd721d6b71a2fd59dd6e70aaf020d42a64007be4df85e062ac
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a critical heuristic firing indicating a link farm. One of the primary links points to a redirector service, 'ttraff.ru', which is known to host malicious content. The document body itself is largely unreadable binary data, but the presence of numerous links suggests an attempt to lure the user to external, potentially malicious, sites. 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.
  • 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=aaranya+kaandam+full+script+pdf In PDF document text
    • http://files.nolapapa.com/uploads/1/3/1/0/131069819/luzefomudavizuw_nodexu_xewiberefig_xasagotevuwinax.pdfIn PDF document text
    • http://xokut.5dmrc.org/uploads/1/3/1/4/131409909/2914318.pdfIn PDF document text
    • http://zirut.dennismoconnor.com/uploads/1/3/1/6/131637881/kenererizewikekafe.pdfIn PDF document text
    • http://files.taichikungfuacademy.com/uploads/1/3/1/6/131607093/lukilorabuwus-penobasotenapag-vunubigudam.pdfIn PDF document text
    • http://files.lavendershop.org/uploads/1/3/1/4/131483138/sorisi_monone_jelux_xupivoweven.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/1/0427/7141/5196/files/94708535364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4722/2422/files/45820734490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8495/5300/files/moodle_fcm_unl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5706/9736/files/miller_thunderbolt_xl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3331/8808/files/abscesso_apical_agudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4093/1991/files/67545310580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9930/6650/files/46937912309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5813/4182/files/45000271953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6693/9799/files/26530968808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1887/8104/files/fisigafozadagulikixulujel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kividerinogofigizunewif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/konodubudubawiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6823/5682/files/58752677821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2139/3320/files/nakogutemise.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009cf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CF1 5112 bytes
SHA-256: 509ea97b87bb10e33cd1f25615620eb7ea25e54087cfa8d569c9faef869699dc
font_01_sfnt_off0000ae3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE3B 10120 bytes
SHA-256: eeec86301b85eba0f1d39c4abfd344ee9528beeb8dacb802e1e0159301e014b9
font_02_sfnt_off0000d117.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD117 16164 bytes
SHA-256: c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e
font_03_sfnt_off0000e62c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE62C 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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