Malicious PDF — malware analysis report

Static analysis result for SHA-256 b174754db1f0de31…

MALICIOUS

PDF

41.1 KB Created: 2020-08-19 00:55:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 78be42d93329fbe793f3dc573ce7ca8e SHA-1: b69f91bf2a0133c1a919f7700b82d6a2045a240c SHA-256: b174754db1f0de3180158822eeff554d4c83220bc248aba13a72e060d442016e
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=human+rights+watch+report+guatemala'. This URL is embedded within the document body, disguised as a human rights report, indicating a social engineering lure. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains hosting other PDFs. The primary malicious link is the most critical IOC.

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=human+rights+watch+report+guatemala In PDF document text
    • http://files.bostonbulldogsrunning.com/uploads/1/3/2/6/132681767/pajadopoganegad-rukamitajewu.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/1/0433/6815/3253/files/49532260571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3776/9383/files/viwosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/sixidibemerixegepig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3273/0008/files/21769289716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/1852871161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/47058322347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1778/9862/files/android_tv_heureka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6275/4461/files/92092936965.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/bafulubipizuxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/faloxofededusoduk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5197/3799/files/15738810618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0094/6073/files/42708417422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9809/5272/files/wuzaburepew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6423/9014/files/exercice_corrig_algorithme_les_tableaux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35535883354.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 5

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_off00006372.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6372 5400 bytes
SHA-256: a1a881089bd79e789a58f094a16ce04206a4cdd62781913220d41addc7fee574
font_01_sfnt_off000075a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75A9 9956 bytes
SHA-256: e2c321c579e3c4bcaddff816582a178c6df45e83fcc66f19382b153a7f31df6c

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