Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1da03972713fb4c…

MALICIOUS

PDF

51.9 KB Created: 2020-08-19 20:43:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: abd3655596ef2dd16586f5d2f40e6fa6 SHA-1: c723de6f9e3e3fcfda1a7d02a5d4338c487609f5 SHA-256: b1da03972713fb4c5b9bbd6af8dac313067c4119b79937b1a99194e9767f3153
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The embedded URL 'https://ttraff.cc/pify?keyword=balap+mobil+game+mod+apk' is the primary indicator of this malicious redirection. Additionally, the PDF_SEO_LINK_FARM heuristic suggests a large number of outbound links, likely for SEO manipulation or to obscure the malicious destination. The ML classifier also strongly flagged this PDF as malicious.

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.cc/pify?keyword=balap+mobil+game+mod+apk In PDF document text
    • http://files.shopmutana.com/uploads/1/3/2/7/132740462/2726787.pdfIn PDF document text
    • http://vokume.thepatternedpaperplate.com/uploads/1/3/1/3/131383657/ninut_gusus_rarikinu.pdfIn PDF document text
    • http://files.ranchnomade.com/uploads/1/3/0/9/130969158/tijugurimojuzar.pdfIn PDF document text
    • http://files.rsvpvolunteercaregivers.org/uploads/1/3/0/7/130775737/lagigulopelade.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/1/0433/0687/7080/files/tosinumemelijigejidab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1610/1781/files/83822691020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6866/7542/files/jumerufore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3029/0327/files/majadudex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6710/4668/files/lasitugutijos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6919/1832/files/bhagavad_gita_sanskrit_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7362/5500/files/39975187690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8538/9206/files/xetuvikidufosaluruja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9702/2879/files/zaxalidevukojexanolalub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2072/2080/files/93900252014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0696/6429/files/59442577018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3111/6448/files/mazakufenox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9559/5938/files/analyse_s2_smpc_exercices_corrigs.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_off000088f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88F1 5260 bytes
SHA-256: 03e675765bff08ecb98060b20972c20373c5bf697de86aea890c6bd6f24c7402
font_01_sfnt_off00009ab7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AB7 12308 bytes
SHA-256: 2f6860691e17df23b7ea0fadb3b03617d5ce4a149be54c41646e6649f942fda8

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