Malicious PDF — malware analysis report

Static analysis result for SHA-256 681dc8d602afda11…

MALICIOUS

PDF

39.1 KB Created: 2020-08-10 22:22:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 326cd3345fa3f5a81e13515c013040cc SHA-1: 8cf2d7a3d8a0c886f62558a0a57c19eec5ac3374 SHA-256: 681dc8d602afda11793758a8121d5cfe475e44ab3bacd9a52fa4f49aa2cc5411
234 Risk Score

Malware Insights

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

The PDF document contains numerous links, many of which point to a redirector service (https://ttraff.com/pify?keyword=merge+pdf+logiciel) that is known to host malicious content. The document body itself appears to be a lure, referencing a 'merge pdf logiciel' and embedding URLs that likely lead to further malicious downloads or phishing pages. The presence of multiple SEO-optimized PDF links suggests an attempt to distribute malware through a link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not 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://ttraff.com/pify?keyword=merge+pdf+logiciel In PDF document text
    • http://zumefof.alaskacdc.org/uploads/1/3/1/0/131070722/1335369.pdfIn PDF document text
    • http://files.greenmeadowsbaptistchurch.com/uploads/1/3/0/8/130814258/1127575.pdfIn PDF document text
    • http://files.nanaimobuddhistmeditationgroup.org/uploads/1/3/1/4/131453543/fisonoba_wesosagemesiduz_felilefu.pdfIn PDF document text
    • http://files.hawthornhillsranch.com/uploads/1/3/0/9/130969818/a10e953.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/1/0432/0703/2990/files/xanar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9305/5904/files/15644422885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8309/5459/files/53497856626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/99640144283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8713/3860/files/psychology_facts_about_emotions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/5740/2276/files/5088553654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0308/3928/files/91417869197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/7530/1539/files/pct_applicant_s_guide_national_phase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6297/6921/files/57450379243.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 3

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_off00005bca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BCA 4940 bytes
SHA-256: e7a4c56c8a78fdb114b26af0e74c56c41b46ef81225a0847e70daefd6ab10eb3
font_01_sfnt_off00006caf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CAF 10380 bytes
SHA-256: de96511b77020a2ac9a322039cb67464aa27439e19b3f369d82849cadb36405a

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