Malicious PDF — malware analysis report

Static analysis result for SHA-256 c150f4f1bb31585e…

MALICIOUS

PDF

73.7 KB Created: 2021-01-10 09:05:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 355dac33e1a9de15af3fbd095973946a SHA-1: 075f721521ff62c531037e55dca625088f78ee87 SHA-256: c150f4f1bb31585e7858e7d1a9b0eeb075d95105a7b49e87a92089708d69cd4c
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links, specifically pointing to 'ggtraff.ru' with a UTM parameter suggesting a lure for 'jailbreak ipad 2020'. ClamAV also detected it as 'Pdf.Phishing.Trojan'. While no scripts were explicitly extracted, the presence of malicious links within the document body strongly suggests an intent to redirect the user to a phishing or malware-hosting site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://ggtraff.ru/123?utm_term=jailbreak+ipad+2020 In PDF document text
    • https://cdn.sqhk.co/febutatesu/haqjjhi/crafting_idle_clicker_layout.pdfIn PDF document text
    • https://site-1173692.mozfiles.com/files/1173692/how_to_make_a_hybrid_flower_garden_acnh.pdfIn PDF document text
    • https://site-1166620.mozfiles.com/files/1166620/80344397473.pdfIn PDF document text
    • https://cdn.sqhk.co/pofaxiniraz/bcaidNZ/ben_10_alien_fight.pdfIn PDF document text
    • https://cdn.sqhk.co/pigalixow/iegdVih/96538289259.pdfIn PDF document text
    • https://cdn.sqhk.co/kurinunuwor/1OhihfO/kabifog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393898/normal_5fba6a0587cb2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377933/normal_5fa9858946a54.pdfIn PDF document text
    • https://cdn.sqhk.co/munoforifuso/Nibhgyp/pazixodo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417983/normal_5f9a0e0b37ace.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lazolu/call_another_activity_android_kotlin.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e29f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE29F 5240 bytes
SHA-256: df61562513a206f0e25e65f89dc72dd90b9d34e319342804998d96953ba05538
font_01_sfnt_off0000f47e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF47E 11604 bytes
SHA-256: bb20a720b9b36cd2443e1b1851e131c3d2c1cc97ebb576ff397c601d5602d8a0

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