Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fb066d1686ce0cd…

MALICIOUS

PDF

40.5 KB Created: 2020-09-11 20:09:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 73ab7493b172b3dbac617e13681e4357 SHA-1: 9ec33540e07a9f7a333969ee3dbe2f4a28efb177 SHA-256: 6fb066d1686ce0cd55ecc80831ed773f8756e6fa6c877812bd0d4abb43048007
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are identified as part of a link farm and redirector infrastructure. The primary lure appears to be a "guide" related to "Empire total war Russian campaign", which is likely a pretext to encourage clicks on malicious URLs. The ML classifier strongly indicates maliciousness, and the presence of redirector links suggests a phishing or malware distribution attempt.

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.club/wix?keyword=empire+total+war+russian+campaign+guide In PDF document text
    • http://files.heartporthk.com/uploads/1/3/1/4/131454850/kufajiguxana.pdfIn PDF document text
    • http://files.justbeau.studio/uploads/1/3/0/8/130874254/4103156.pdfIn PDF document text
    • http://fiwupive.dorset-epc.co.uk/uploads/1/3/1/4/131453494/740c01a52db82e.pdfIn PDF document text
    • http://gefulas.mommylife.us/uploads/1/3/0/8/130813528/legebugeti.pdfIn PDF document text
    • http://files.mongomuscleapparel.com/uploads/1/3/0/8/130815093/9089901.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/1/0447/9696/9109/files/hammerdin_build_diablo_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61086590007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6595/6759/files/alkaline_and_acidic_food_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5657/8212/files/albert_einstein_biography_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5007/2224/files/bopuxuzojejeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7626/3841/files/fema_is_454_test_answers.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/bf650e_f00c311fdd924745ac37f1b76522aa44.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9117e0_141047799562407b91b727e6ea82d683.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e4d7df_6f370885a68a480ba848cfabd9246486.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_bb1e6880f2654da2884085ebdeb17af9.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/665c20_abbc59bf9acd4837881a1a1998ef0b3c.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 2

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_off00005f6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F6C 5444 bytes
SHA-256: 05e31cc73484bac07cac5548b2acb6a74aa46ecc3cf4e57a1f36394de25bc90a
font_01_sfnt_off000071ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71EA 10288 bytes
SHA-256: d4e92adcf1c68f85f8aa856964f30c1f48726a8cfe548cb70b564a159538b67d

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