Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bd53088848ffd9d…

MALICIOUS

PDF

45.3 KB Created: 2020-08-24 23:01:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c0f1ef9a21a78ea466b5f2aeb3c1faf4 SHA-1: d242e66b9947f0bd9c3e06682c42a60b84254e68 SHA-256: 0bd53088848ffd9d2d09519d62eb4a8345c834a39e19eb320511870d44c492c2
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 part of a link farm designed to appear as free downloads. One prominent link, https://ttraff.ru/pify?keyword=wps+connect+app+free, is identified as a malicious redirector. The ML classifier strongly indicates maliciousness, supporting the conclusion that this document is a phishing lure.

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=wps+connect+app+free In PDF document text
    • http://raredubir.rachelbrauer.com/uploads/1/3/1/4/131453329/girawubasenutop.pdfIn PDF document text
    • http://files.dmawarenessmi.com/uploads/1/3/0/8/130813135/1924522.pdfIn PDF document text
    • http://pikipifer.underonehour.com/uploads/1/3/1/4/131438428/gexokujibivaj.pdfIn PDF document text
    • http://files.cristinamullins.com/uploads/1/3/1/6/131607662/nejew.pdfIn PDF document text
    • http://xugazom.partmason.com/uploads/1/3/1/1/131164250/6047223.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/1/0432/3111/7467/files/law_dictionary_english_to_myanmar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0337/8839/files/16766917057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5996/1239/files/huawei_p9_plus_android_7._0.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0979/4463/files/12088664449.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9110/7752/files/xofujiweseximejeror.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8873/0525/files/wadiwojumesok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9864/5404/files/toberezupol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4712/4130/files/analog_and_digital_sound.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/yassarnal_quran_ahmadiyya.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0845/6865/files/friction_force_problems_worksheet.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
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7A 4992 bytes
SHA-256: 99a26da2dadc4bcf693f60ef125f767e7d9b17aa6a692b45096283b71588967f
font_01_sfnt_off0000708b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x708B 10076 bytes
SHA-256: 8062f5a36ac5de7a80ce10f9192a4cca70a5060235bb5a6d0dd914bab1651ecc
font_02_sfnt_off00009347.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9347 16164 bytes
SHA-256: f469c5aa689aa4c1965481b78cfaebbf1c3ebdad2306c7067134b7b4aaa0addd

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