Malicious PDF — malware analysis report

Static analysis result for SHA-256 7672f6be42bd10df…

MALICIOUS

PDF

41.3 KB Created: 2020-08-23 01:08:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5d32b265af571ce4cf1562b45e86d432 SHA-1: 9838690900337455e1a6dae8a3050ecd62852b27 SHA-256: 7672f6be42bd10df834f286103840e85a4283dcd645baccaff8ff573c511cd84
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.cc) that is associated with malicious activity. The document body, though heavily obfuscated, contains a URL that appears to be a lure for downloading an Android version, further suggesting a phishing or scam attempt. The presence of multiple PDF links and a redirector indicates an attempt to drive traffic to malicious infrastructure.

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=cyanogenmod+14.+1+android+version In PDF document text
    • http://files.modernhomebuyers.us/uploads/1/3/1/6/131606874/butelesaxesuxazaw.pdfIn PDF document text
    • http://files.meteamusic.org/uploads/1/3/1/0/131070523/kukobixazatumaw-defeleniketuduj-rirajare-xulaliziduzuku.pdfIn PDF document text
    • http://files.merdeen2.com/uploads/1/3/0/9/130969808/bipuf.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/1/0439/0469/6472/files/fubabisutod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3804/0487/files/vyapari_mitra_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6954/7431/files/winrar_terbaru_2019_bagas31.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5136/8104/files/modern_biology_textbook_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1622/3906/files/drawing_prisms_and_pyramids_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2137/7434/files/7307574501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4736/0414/files/hdpe_sheet_extrusion_welding.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5985/3977/files/kubimezarukipirepiluko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5320/1046/files/icloud_icon_for_android.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_off000063fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63FC 5352 bytes
SHA-256: 6da6e2f9fbf47032b44b2bd80b498c93d5ff3d1b184af4201cbe3905617b9ced
font_01_sfnt_off00007638.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7638 10072 bytes
SHA-256: 153d95a72c27c6e2fa43637202cd55d1c9e5c65a97b6507b3b470592cdd2aa0c

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