Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc46d378164a2308…

MALICIOUS

PDF

47.5 KB Created: 2020-08-09 18:44:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 375b57fdfd320dc4ed21915f123a762e SHA-1: e11c9de98fe8946610db1d766da211ed16a78889 SHA-256: dc46d378164a23083731faa45ec9ea41ecf8dcac037b02716736802a500da5e2
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text suggesting a lure related to 'ibps clerk english book pdf'. The primary malicious URL identified is ttraff.ru, which is likely used to redirect users to further malicious content or phishing pages.

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=ibps+clerk+english+book+pdf In PDF document text
    • http://kipijosa.jomehndi.com/uploads/1/3/1/1/131164250/034ea27ceb44.pdfIn PDF document text
    • http://rufob.usapassionpublication.com/uploads/1/3/1/4/131407148/foduxazatevosuki.pdfIn PDF document text
    • http://files.fivemoremethod.com/uploads/1/3/1/4/131453943/zarorupo-luvinesolevokon.pdfIn PDF document text
    • http://files.cleanmeat-hoax.com/uploads/1/3/2/7/132740595/8518191.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/1/0439/3772/6622/files/barthes_semiotics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1790/3008/files/85763350963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1670/5432/files/nanenifinalitebuna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3015/1330/files/40219154906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2884/8538/files/72884396191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7030/7995/files/80688861477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6656/4503/files/vezafumusolerav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5269/3654/files/78451417854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7966/1736/files/ivy_tech_accuplacer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3164/8661/files/35889860192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9400/6177/files/que_estudia_la_psicologia_social.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5313/8588/files/49347574151.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_off00007400.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7400 5348 bytes
SHA-256: c0b124eb763510b1b5d499953c8cfd65d85eac68885741ac548d5b53018ccad5
font_01_sfnt_off00008629.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8629 13624 bytes
SHA-256: 75266f18d2c0928ee14f6fbdb3a449f0923741c71f74c3137c949073df647c4f

Open this report in the interactive analyzer, or submit your own file for analysis.