Malicious PDF — malware analysis report

Static analysis result for SHA-256 07610f326406c30b…

MALICIOUS

PDF

48.1 KB Created: 2020-08-30 08:20:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 281e9621e110f7dd35e797d227e955ff SHA-1: 5af4b4bfacacca28119d2896dced805b483ce7ed SHA-256: 07610f326406c30b40e4def66f6dbd31c78d43c9cffb5cfb8c568235ea10e96f
154 Risk Score

Malware Insights

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

The PDF contains a link that redirects to known malicious infrastructure, disguised as a "Wic reset utility key crack". The document body and embedded links suggest a phishing or scam attempt to trick users into visiting a malicious site. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent.

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=wic+reset+utility+key+crack
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0429/2060/7900/files/nulojogiwideje.pdf
    • https://cdn.shopify.com/s/files/1/0427/9438/5575/files/lupupaxaguzegapumu.pdf
    • https://cdn.shopify.com/s/files/1/0465/1106/3190/files/badnam_song_dhol_remix.pdf
    • https://cdn.shopify.com/s/files/1/0433/8515/9845/files/12230424849.pdf
    • https://cdn.shopify.com/s/files/1/0432/5815/1072/files/59954134677.pdf
    • https://static.usrfiles.com/ugd/b8c837_c7fadf8df241422da7046e59ae0f5121.pdf
    • https://static.usrfiles.com/ugd/b8c837_e35beff690f548fb955e51f8a2d41739.pdf
    • https://static.usrfiles.com/ugd/34e21e_0b9d7f8afc5248088237326096833e73.pdf
    • https://static.usrfiles.com/ugd/9cb927_ac7eb192acfa4bdc995ac7bd287e7f41.pdf
    • https://static.usrfiles.com/ugd/99a8f2_ed4c92f427324a9f9998bf1e4d8217a1.pdf
    • https://static.usrfiles.com/ugd/6cf392_d14c252fa4984007a7b40024793f6911.pdf
    • https://static.usrfiles.com/ugd/b8c837_0425a56518024801944dc1c0f3b7465b.pdf
    • https://static.usrfiles.com/ugd/6908d7_33351d22fe2441ae81c43a862ec63a74.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_off000070c0.bin
38133e1b0d5aa55978f8c5cf9ce0e968220710278a803878af10c65f573320db
pdf-font-stream PDF embedded font (sfnt) at offset 0x70C0 4640 bytes
font_01_sfnt_off000080a3.bin
6e4028ecc9e963673269c65b9370388b44a8ba301512ea9370ffe775bedbc3df
pdf-font-stream PDF embedded font (sfnt) at offset 0x80A3 10940 bytes
font_02_sfnt_off0000a5cc.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0xA5CC 4324 bytes