Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d675c22802fd280…

MALICIOUS

PDF

44.9 KB Created: 2020-08-07 01:57:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61a5f733f99d89d18c89155e7e360dd4 SHA-1: 705ccdc46783821e1b6e4f6b9d1fe5951ec60b0f SHA-256: 0d675c22802fd2804c0462e4a271f4520d85e39742a1791bbf8c371fcee0f487
154 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 Shopify domains hosting other PDFs, suggesting a link farm or SEO manipulation tactic. One prominent link, disguised as a document about naming benzene compounds, redirects to a malicious domain (ttraff.cc). The ML classifier strongly flagged this PDF as malicious, and the presence of a redirector link indicates an attempt to lead the user to malicious content. No scripts were extracted, but the primary attack vector appears to be social engineering via deceptive links.

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.cc/pify?keyword=naming+of+benzene+compounds+pdf
    • http://files.caloriecorner.com/uploads/1/3/0/7/130775871/38f5c48ed2b6.pdf
    • http://files.cheffreshgrabngo.com/uploads/1/3/1/4/131406840/3372909.pdf
    • http://files.nancypaulinephotography.com/uploads/1/3/1/3/131398555/87cffe55712a.pdf
    • http://ralivolit.auswingeorgethomas.com/uploads/1/3/1/3/131384635/9fd323937.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/5382/5694/files/tell_me_about_yourself_dating.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dobemajafapurotexujebo.pdf
    • https://cdn.shopify.com/s/files/1/0435/3074/8072/files/danagexinejone.pdf
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/kinifewufixenatakazoribi.pdf
    • https://cdn.shopify.com/s/files/1/0429/2352/4259/files/fevelegogura.pdf
    • https://cdn.shopify.com/s/files/1/0429/5000/0791/files/xavusajuku.pdf
    • https://cdn.shopify.com/s/files/1/0434/2205/6600/files/rebowe.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/kosofoba.pdf
    • https://cdn.shopify.com/s/files/1/0430/5905/2706/files/kuginodagediroleza.pdf
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/dijibujuxorozeloredivi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8596/3168/files/hewlett_packard_pavilion_dv6500.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000710b.bin
768b3958e2a9ce516315f0e77ad8acde292b3fa9afc53bff47d5003530e8c6b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x710B 5508 bytes
font_01_sfnt_off000083c9.bin
e46c4d5d390915cfe0d355c69c7cc495c8e74bff76aae87fb62befb99d825c86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83C9 10120 bytes

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