Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6f59f8718a7fe18…

MALICIOUS

PDF

83.0 KB Created: 2020-11-04 07:27:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 81e7d95099012e65b4f92291acfc8624 SHA-1: d6b4a717d7a24c795cc4b1b0260cf1f7d613b5e9 SHA-256: c6f59f8718a7fe18d3a264d632e3f6e544c719b4732af6ba76745b5c2228e262
154 Risk Score

Malware Insights

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

The PDF contains a link farm and redirects to a malicious URL, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious. The embedded URL `https://ttraff.club/123?keyword=tv+guide+listing+for+lakeland+fl` is likely used to redirect the user to malicious content.

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.club/123?keyword=tv+guide+listing+for+lakeland+fl
    • https://pexulowiseguwuz.weebly.com/uploads/1/3/4/3/134391342/funubaw.pdf
    • https://cdn-cms.f-static.net/uploads/4368762/normal_5f8881b1be7ea.pdf
    • https://cdn-cms.f-static.net/uploads/4380411/normal_5f8d0633eb122.pdf
    • https://cdn-cms.f-static.net/uploads/4414169/normal_5f96ee085d4f6.pdf
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/9e4e5d8f19.pdf
    • https://kupugaxome.weebly.com/uploads/1/3/0/9/130969415/3582242.pdf
    • https://cdn-cms.f-static.net/uploads/4366351/normal_5f8a8829bc7bd.pdf
    • https://zigegawemofeza.weebly.com/uploads/1/3/1/4/131406932/zesowisitusat_nulejobijud_posutodibaruzez_sexanuzem.pdf
    • https://risimukino.weebly.com/uploads/1/3/1/3/131383953/kazureburewe.pdf
    • https://wekijoborumotis.weebly.com/uploads/1/3/4/4/134484899/bulifojodaw.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jeduzizonox/42812466220.pdf
    • https://s3.amazonaws.com/xedewofuretujo/my_hero_academia_ep_49.pdf
    • https://s3.amazonaws.com/henghuili-files/pezixerimarafotupexulabij.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ebd1.bin
f902cc1928954ee8e27eaefc271416972a96f52e09ab018de6002e80d5284dd2
pdf-font-stream PDF embedded font (sfnt) at offset 0xEBD1 5148 bytes
font_01_sfnt_off0000fd6c.bin
f295b7d4ad1b76472056538e462619c693e9996b40a7c65d694b73dd673d32fa
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD6C 12896 bytes
font_02_sfnt_off00012951.bin
b5ab0317fc6f7afe662267213ed18148d0a5a733e5a88452cbb41c28054680f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x12951 16208 bytes