Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fc56e0a1f3300c3…

MALICIOUS

PDF

60.6 KB Created: 2020-08-31 20:33:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0c8a2b43d861adfda40ae8bcc8c25882 SHA-1: 35257b279884f1591654bad875a053f1c01e662c SHA-256: 7fc56e0a1f3300c31708a6d69973ce957c67723ab7e8b57f098e9faf155f837a
154 Risk Score

Malware Insights

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

This PDF file contains a link farm and a direct link to a known malicious redirector, indicating it is designed to lead users to harmful websites. The document body, though obfuscated, contains text related to a "Dynasty season 3 episode guide" and the malicious URL, suggesting a lure to disguise the malicious intent. The ML classifier strongly flagged this PDF as malicious.

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.ru/wix?keyword=dynasty+season+3+episode+guide
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0431/5951/9387/files/nadewijubi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94662163826.pdf
    • https://cdn.shopify.com/s/files/1/0432/5667/6510/files/71422881225.pdf
    • https://cdn.shopify.com/s/files/1/0437/1687/0293/files/associations_incorporation_act_1981.pdf
    • https://cdn.shopify.com/s/files/1/0438/4587/7922/files/65374778122.pdf
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/54689973627.pdf
    • https://cdn.shopify.com/s/files/1/0461/6306/7032/files/fuvared.pdf
    • https://cdn.shopify.com/s/files/1/0428/5654/6467/files/67203547701.pdf
    • https://cdn.shopify.com/s/files/1/0427/5362/2182/files/halimbawa_ng_barayti_ng_wika.pdf
    • https://cdn.shopify.com/s/files/1/0437/1798/4410/files/3ds_max_character_creation.pdf
    • https://cdn.shopify.com/s/files/1/0429/6815/4278/files/35868130708.pdf
    • https://cdn.shopify.com/s/files/1/0433/1952/5531/files/26972655960.pdf
    • https://cdn.shopify.com/s/files/1/0428/3216/7068/files/domiko.pdf
    • https://cdn.shopify.com/s/files/1/0433/4813/2008/files/axis_io_mod_apk_android_1.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81667611697.pdf
    • https://cdn.shopify.com/s/files/1/0437/6644/8279/files/ac_joint_sprain_exercises.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_off0000a1c0.bin
59a5b2264abaa4d5d2b3bfd6c82b78ded81215ba3de419fd3da82df2f3cd12fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA1C0 5148 bytes
font_01_sfnt_off0000b35c.bin
a74938fdfcab0f307191f78459989c4d73b3c62a7f62cf95971d803aae781041		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB35C 10664 bytes
font_02_sfnt_off0000d704.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD704 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.