Malicious PDF — malware analysis report

Static analysis result for SHA-256 90426e0923871ba2…

MALICIOUS

PDF

52.5 KB Created: 2020-08-20 14:17:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0a6e92c02bb5f474ee7b895266ac713 SHA-1: c0bdd43c22c1501c3f8b6a3ebfe987baac7bc61d SHA-256: 90426e0923871ba230613d0f9ec70fee15acf775e58a418ce51fc320ca523b59
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body and heuristics suggest a link farm or SEO-based lure, likely intended to trick users into downloading further malicious content or visiting phishing sites. No scripts were extracted, but the presence of malicious redirectors and a large number of outbound links indicates a high likelihood of 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.ru/pify?keyword=forma+1+bahreini+nagyd%25C3%25ADj+2018 In PDF document text
    • http://jamobozi.fivelevelsconsulting.com/uploads/1/3/2/6/132682327/javonopaxe.pdfIn PDF document text
    • http://files.privatetourssanfrancisco.com/uploads/1/3/0/9/130969818/xeguzo_falusix_verilupovumisaf.pdfIn PDF document text
    • http://files.subtleawakening.com/uploads/1/3/0/7/130775758/c9c3d.pdfIn PDF document text
    • http://files.markneeley.com/uploads/1/3/0/7/130775023/nevowefawunamudalag.pdfIn PDF document text
    • http://files.kellyjoboland.com/uploads/1/3/0/9/130969708/lusamuba.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/1/0429/8535/7463/files/54532640650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7612/4821/files/aschenputtel_sketch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8592/2466/files/rirurevitulavopew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3893/9048/files/ielts_writing_task_2_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9640/8218/files/rumakotetenoxodewak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4607/5542/files/wow_classic_small_flame_sac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9845/4693/files/99012142734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3748/2405/files/fogamosunaxakakawipigoge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4992/7327/files/mga_bayani_ng_pilipinas_at_ang_kanilang_talambuhay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2205/6600/files/43132414833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6958/8124/files/diablo_3_secrets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6352/5026/files/dobarevodubutobozuget.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/305869957.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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_off00006336.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6336 6740 bytes
SHA-256: 960be24e41903e2c9ee1a53646adac9b94dd6a5b6743d5e0f11d54c2ff8ab323
font_01_sfnt_off0000740a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x740A 5876 bytes
SHA-256: 811bbe4eb9af9331898a13b889ec0c14aeabd17211e9350991e0e25979202fdb
font_02_sfnt_off000087fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87FA 11936 bytes
SHA-256: 39313a1dc1f4fb1359027e0d1c1122c888f819f697073a2b4c23a030396ebaa5
font_03_sfnt_off0000adc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADC3 16036 bytes
SHA-256: 354dce64f07f3d7acdf6a04edf763950ffbfec4edcbb4bfe17b65a83544077bb

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