Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2ba48d650dd11d9…

MALICIOUS

PDF

47.9 KB Created: 2020-11-04 01:13:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dca6034cef5c8292a6d640bf75d07720 SHA-1: 78a2378c822f79fe36b4a950557066e89c61b209 SHA-256: d2ba48d650dd11d922ffd49ec4e6b31f824146bc0e56832294cbc7475760ab01
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it is a malicious redirector, pointing to the URL https://ttraff.link/123?keyword=prism+tv+centurylink+channel+guide. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The ML classifier strongly flagged this PDF as malicious. The presence of embedded URLs and the redirector link indicate an attempt to lure the user to a malicious site, likely for phishing or to download further malware.

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.link/123?keyword=prism+tv+centurylink+channel+guide
    • https://zazusixalug.weebly.com/uploads/1/3/4/4/134491239/2f3c6948b0bbd8.pdf
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/a63fb.pdf
    • https://viweposedijul.weebly.com/uploads/1/3/1/0/131070314/fuvitagasebap-tigelamab-lozurasumosoxig-wiwozuvasowov.pdf
    • https://tipefejiri.weebly.com/uploads/1/3/0/9/130969755/paxeji.pdf
    • https://nupejaxisolerez.weebly.com/uploads/1/3/4/3/134348845/2168303.pdf
    • https://xijonezamo.weebly.com/uploads/1/3/1/4/131407630/kinubesijaneso-davabaver-dekazo.pdf
    • https://gokajafiwewafij.weebly.com/uploads/1/3/4/3/134314986/3c900f9ffaa6a00.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/felasorarabipis/kajajopon.pdf
    • https://s3.amazonaws.com/pevuwarobuvowa/lionhead_rabbit_colors_and_patterns.pdf
    • https://uploads.strikinglycdn.com/files/fa85e2be-5477-402e-9173-9a36231167c6/90297080477.pdf
    • https://s3.amazonaws.com/gupuso/sdgs_logo.pdf
    • https://s3.amazonaws.com/megelugik/attestation_de_prise_en_charge_tlscontact.pdf
    • https://s3.amazonaws.com/muvarelo/self_appraisal_comments_by_employee_example.pdf
    • https://s3.amazonaws.com/vaxebisapesi/fomenevesetaxakax.pdf
    • https://s3.amazonaws.com/jovekus/loporiwofunerivibuvik.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_off00006dd3.bin
067fae52ef4105252c324e8cd690183b5aeea7d7afdae94cc5061714a970d2ea
pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD3 5352 bytes
font_01_sfnt_off00007fcf.bin
eb0af91b5803ba0c0c52777ddba46762a56fe44b4a551c857526bd3d0c2d59ef
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FCF 10660 bytes
font_02_sfnt_off0000a456.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xA456 4324 bytes