Malicious PDF — malware analysis report

Static analysis result for SHA-256 3126bc23bc97cc32…

MALICIOUS

PDF

45.4 KB Created: 2020-03-29 13:56:35 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 07e49a285d22b07e1f615644e3ef63d7 SHA-1: 4506b43eb335f27615ec3eda7ed71836447934f7 SHA-256: 3126bc23bc97cc326a9cad11972374ef60370a18c03fe855d451a1da2bc99c65
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

This PDF document exhibits characteristics of a link farm, with numerous embedded URLs pointing to other PDF files. The document body contains text related to 'Tp-link tl-wdn3200 n600 driver download', suggesting a lure to trick users into clicking malicious links. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent. The primary attack vector appears to be directing users to external sites that may host further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://lennoxweb.com/uploads/1/3/0/6/130620272/130620272.html#tp-link+tl-wdn3200+n600+driver+download
    • http://finture.nl/uploads/1/3/0/2/130287934/zekopelo.pdf
    • http://hassinvest.be/uploads/1/3/0/2/130289746/xizuroludefesasi.pdf
    • http://513freemusic.com/uploads/1/3/0/5/130588457/vuwawi_zufonerasosere_tasujodugenifav.pdf
    • http://sharlykconsulting.com/uploads/1/3/0/7/130739559/7374040.pdf
    • http://qcdoodles.com/uploads/1/3/1/3/131380128/nifutofiloge.pdf
    • http://dj3rdgeorge.com/uploads/1/3/0/3/130379367/xubazesuraraz.pdf
    • http://teamwarehousebodymechanics.com/uploads/1/3/0/6/130604987/108824.pdf
    • http://tinab.net/uploads/1/3/0/6/130605203/wujagagezenam.pdf
    • http://ozworsolutionsbullion.com/uploads/1/3/0/3/130379757/pojumobi_tojereraduv.pdf
    • http://sheffieldtestpilot.com/uploads/1/3/1/4/131406847/liwitawefebukiwas.pdf
    • http://wabilalkalemat.com/uploads/1/3/0/2/130289387/mavexaxuvubib-lefuduv-jexegugexi-doxuganupa.pdf
    • http://pyndancameltracks.com/uploads/1/3/0/4/130477026/7003081.pdf
    • http://therealdreel.com/uploads/1/3/0/5/130590716/puxedo.pdf
    • http://kbsuppliers.com/uploads/1/3/0/4/130483587/buruwexesejon-kokip.pdf
    • http://sytenacity.com/uploads/1/3/0/4/130488399/980f660ba.pdf
    • http://pacaprogro.com/uploads/1/3/0/7/130739754/8e6d72cd43c.pdf
    • http://maasvdhomberg.nl/uploads/1/3/0/4/130488141/833823.pdf
    • http://luv-a-bull.com/uploads/1/3/0/3/130379138/vebixevi-muxiguf-rasomowog-fekip.pdf
    • http://pennimusic.net/uploads/1/3/0/8/130873994/a7fd11e6ab31e.pdf
    • http://nikkilmoore.com/uploads/1/3/0/4/130478566/b45f3897e.pdf
    • http://aimrace.org/uploads/1/3/0/2/130289400/zimojifukik.pdf
    • http://hamiltonmanor.net/uploads/1/3/0/5/130590219/bigoliwurofoler-noxudopev.pdf
    • http://baumanbaps.com/uploads/1/3/0/7/130739315/9ae95e0e43.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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008789.bin
b200d2d2be5e338732d8c49b35f394050f4bb64057bce0e8200abe6bda14ef62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8789 8360 bytes

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