Malicious PDF — malware analysis report

Static analysis result for SHA-256 5de122093ff2bad9…

MALICIOUS

PDF

34.0 KB Created: 2020-08-23 01:13:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 962c0543613e8c380d2ad069bc04e9c2 SHA-1: a07264726ecc4433ef5562ff4b525831fa256ea5 SHA-256: 5de122093ff2bad9bd954ad87129320648ecaf28429bb316c70b257efd3b2eb0
194 Risk Score

Malware Insights

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

This PDF document contains a link farm and a redirector to malicious infrastructure, identified by the heuristic PDF_SEO_LINK_FARM and PDF_MALICIOUS_REDIRECTOR_LINK. The embedded link, 'https://ttraff.cc/pify?keyword=chehra+masoom+ringtone+song', is designed to lure users to a malicious site. The ML classifier also strongly indicated maliciousness.

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=chehra+masoom+ringtone+song In PDF document text
    • http://files.psychologywizard.net/uploads/1/3/1/6/131637316/molugizoza.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/1/0433/5350/5946/files/metikeno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5726/4280/files/adding_fractions_6th_grade_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3822/6085/files/jolly_phonics_sight_words.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8010/5630/files/38945127373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7695/1974/files/wubulapuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6953/7432/files/14515633339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9322/0758/files/zumejimofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8451/2406/files/my_immortal_lyrics_meaning.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004037.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4037 4972 bytes
SHA-256: b517bed06efbd766303320b81d166268e2e982f6d99ac5fe47124f4dce389208
font_01_sfnt_off000050f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50F2 2044 bytes
SHA-256: e8def34ef7fa1cd1e737aa53281a1ad4be732a20e453453846aa670fb207f4af
font_02_sfnt_off00005a5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A5E 9672 bytes
SHA-256: 6ad06cace27e707ad28158f153e37bc8d27467f0c1e1f7334b9823c571df62ac