Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eadbe0087f13598…

MALICIOUS

PDF

39.9 KB Created: 2020-08-05 10:12:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ec50da3d85f7248e759dc3dc0e68c5c7 SHA-1: e12012e5208682172c58fae19b59fdcee5d27123 SHA-256: 0eadbe0087f1359894761823dab38c131b6261febb6521a5d13baacb278d4dd5
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a link farm designed to generate SEO traffic. One prominent link directs users to a known malicious redirector, ttraff.com, with a keyword suggesting a lure related to dream interpretation books. This indicates a phishing or scam attempt, likely using the document as a lure to drive traffic to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=christian+dream+interpretation+book+pdf
    • http://files.thecircusdrummer.com/uploads/1/3/0/7/130739971/fiwife.pdf
    • http://files.alexblassingame.com/uploads/1/3/0/7/130740357/titoli-fapitovoj-tulolegetazul-nuveke.pdf
    • http://files.benttreeocala.com/uploads/1/3/0/8/130813643/bed03f77.pdf
    • http://files.wesselsdancestudio.com/uploads/1/3/0/7/130738524/6733789.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0435/4031/6319/files/42230397510.pdf
    • https://cdn.shopify.com/s/files/1/0431/1243/1776/files/55216923916.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sesolofulazige.pdf
    • https://cdn.shopify.com/s/files/1/0435/3720/3364/files/84998422312.pdf
    • https://cdn.shopify.com/s/files/1/0433/0949/8536/files/92032254874.pdf
    • https://cdn.shopify.com/s/files/1/0430/4817/3722/files/math_symbols_meanings.pdf
    • https://cdn.shopify.com/s/files/1/0428/9524/5475/files/tusezotolatirise.pdf
    • https://cdn.shopify.com/s/files/1/0428/7099/7151/files/xazuv.pdf
    • https://cdn.shopify.com/s/files/1/0430/9080/4893/files/fozozuziza.pdf
    • https://cdn.shopify.com/s/files/1/0429/0471/5427/files/jawupudaxunog.pdf
    • https://cdn.shopify.com/s/files/1/0435/5761/7823/files/51385636994.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005144.bin
a77187db037e358bb7576a57f46b52dcbc69ffb90238cc4cc9f6c567594c461f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5144 5264 bytes
font_01_sfnt_off000062f2.bin
7dba0124a24fab9ab695d5259eae7ca4ab17c0f1c5a8ffc133a23084809f290e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62F2 9896 bytes
font_02_sfnt_off000084be.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84BE 4324 bytes

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