Malicious PDF — malware analysis report

Static analysis result for SHA-256 3deb3dd6b5894190…

MALICIOUS

PDF

60.2 KB Created: 2020-08-26 23:01:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a4c027dd3526dc8a32c08c49bbde1b7c SHA-1: f9b1697d816ae63664cbb32697a96571db8e6117 SHA-256: 3deb3dd6b58941903225ae9ec25e4a9c1ae5739b1366ed37b3c921b74cd16183
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=download+osho+dynamic+meditation+mus'. This indicates the document is designed to trick users into visiting a malicious URL, likely for further exploitation or malware delivery. The presence of a 'download button' lure reinforces this malicious intent. While the document body is heavily obfuscated, the primary malicious activity is driven by the embedded malicious URL.

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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=download+osho+dynamic+meditation+mus In PDF document text
    • http://sofadez.crescentheadtavern.com/uploads/1/3/1/3/131384166/e5362137.pdfIn PDF document text
    • http://files.holidayapartments-berlin.com/uploads/1/3/0/7/130776661/xurotiwizavi.pdfIn PDF document text
    • http://files.adchibama.org/uploads/1/3/2/6/132681513/6408801.pdfIn PDF document text
    • http://files.morjimcocopalms.com/uploads/1/3/1/3/131384789/2a0aea98a146c0c.pdfIn PDF document text
    • http://files.bournemouthjrc.co.uk/uploads/1/3/2/7/132710690/9372aa38a85.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/1/0433/3463/1579/files/89868963737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9000/9502/files/715._determine_the_internal_normal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6164/0352/files/49576806521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6872/7194/files/vufezelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3062/5950/files/popire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6609/6802/files/android_room_db_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5397/3657/files/baloncesto_en_silla_de_ruedas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1791/9912/files/57135982020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8610/1145/files/11036428700.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1907/4716/files/46389791752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8234/2815/files/jam_mathematics_syllabus_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2756/0610/files/confirm_receipt_of_email.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8699/5863/files/nopiravapezor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5726/4280/files/nanije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7880/2846/files/feelings_and_emotions_vocabulary_exercises.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_off0000ae43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE43 5276 bytes
SHA-256: ca77342e3d208eced37fce32a11f289c6980c3b581117cb8163692aedbfc0bf1
font_01_sfnt_off0000c01d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC01D 10204 bytes
SHA-256: 4c441c6137371a4b5c4e0e0535f917e711d46776cbd0ccb46809d6115fa94939