Malicious PDF — malware analysis report

Static analysis result for SHA-256 866a267fd2082725…

MALICIOUS

PDF

32.8 KB Created: 2020-08-27 14:21:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 815557c8ba181c3f4a6253e4a371a263 SHA-1: b539a1a27577a0b12236858f37076a64b3da99b6 SHA-256: 866a267fd2082725ae9ae084e871d2a5f76dc544dc1b102171278560239d1510
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a download for a technical manual. This indicates a phishing or social engineering attempt to redirect the user to malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=power+electronics+daniel+hart+solution+manual+pdf+free+download
    • http://maravifo.sassyarabia.com/uploads/1/3/0/8/130874426/2567911.pdf
    • http://sawuzizo.reiserranch.com/uploads/1/3/1/4/131408100/zenoruje_lovepidafimebiw_pagonenisinazul.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0463/0416/6050/files/22837694574.pdf
    • https://cdn.shopify.com/s/files/1/0428/1221/1359/files/41146681143.pdf
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/vimipujodudibilulo.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/babel_full_hd_movie.pdf
    • https://cdn.shopify.com/s/files/1/0440/3894/6981/files/41802013915.pdf
    • https://cdn.shopify.com/s/files/1/0432/6113/2962/files/rirozowepebavemefazunedu.pdf
    • https://cdn.shopify.com/s/files/1/0436/3960/3360/files/81378764252.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_off00004173.bin
b66160fa7ccd576029ab6bdc2f5473f563447bde0be88a6737ce6b485bff60d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4173 5488 bytes
font_01_sfnt_off000053fd.bin
2ea699d4f0b44e2fb71ddd8c129bc92163cb3d3f252420607f6f1332eebade5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53FD 9980 bytes

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