Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b005effb3662ade…

MALICIOUS

PDF

39.4 KB Created: 2020-08-14 12:20:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 295035e5899583759f266512c2e54f02 SHA-1: fd1ca6a610aa551457ab449cde6ae21bd8412e91 SHA-256: 2b005effb3662ade9d22c89c88f98ddc5a3626fa44a125d235f39399afc74196
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external PDF links, suggesting a link farm or SEO manipulation tactic. The primary malicious URL identified is ttraff.ru, which is known to host redirectors. While no scripts were extracted, the sheer volume of outbound links and the presence of a known malicious redirector indicate a high likelihood of malicious intent, possibly to lead users to phishing sites or malware downloads.

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=cutaneous+respiration+in+frog+pdf In PDF document text
    • http://files.affordablehomecleaningservice.com/uploads/1/3/1/6/131606291/b4e27333.pdfIn PDF document text
    • http://files.pressprooflabels.com/uploads/1/3/0/7/130739654/fepid_detin_topurojenu.pdfIn PDF document text
    • http://files.glowmedica.com/uploads/1/3/1/3/131383456/sejaxiw.pdfIn PDF document text
    • http://files.halloweencity.com/uploads/1/3/1/4/131437246/594dd2.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/1/0452/8783/3762/files/3_digit_addition_word_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3420/6631/files/nexasibubokuwobirifit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4021/0072/files/nivoxigiwizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8828/8675/files/nivikujoguramejeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0189/4296/files/27888196135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6341/9815/files/3199588584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/voicemeeter_vs_banana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5223/5938/files/32483598874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3067/3565/files/ramupegotufeberazugefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0415/8364/files/worthy_of_it_all_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7170/9092/files/84828178761.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_off00005c73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C73 5084 bytes
SHA-256: 994c6f31d747417a73090f28cddd645d4180b84f586d0d3e1a698613a1079e47
font_01_sfnt_off00006dcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DCB 10496 bytes
SHA-256: 6d39dffc4195ecebc31aa3c96240be21a3c1ef17abd961cea69a53a45416584a

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