Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fd118b00f276962…

MALICIOUS

PDF

55.4 KB Authoring application: Serif PagePlus
MD5: f2d15d65767762ef5d4771bedad1b8d3 SHA-1: 2972b38f75df47f128926f8c4f43128db4adc5d2 SHA-256: 0fd118b00f276962184389ebee70345aaa19575e49b9f1a4739da743071dc810
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files on different domains. This suggests a tactic to manipulate search engine results or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • 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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://yes-bin-drin.com/uploads/1/3/0/8/130873710/99fc377.pdf
    • http://rivron2.net/uploads/1/3/0/5/130550859/derate.pdf
    • http://calculators.software/uploads/1/3/0/3/130379069/rugap_basuguvonerarox_milemipufuxanin_kinikeso.pdf
    • http://sanclementerwf.org/uploads/1/3/0/3/130313066/sanitedikekadativif.pdf
    • http://talksocceramerica.com/uploads/1/3/0/6/130621757/nudalurelanaba.pdf
    • http://applepickndays.com/uploads/1/3/0/6/130639728/6828717.pdf
    • http://www.lymeliteclothing.com/uploads/1/3/0/6/130621240/lisoxe.pdf
    • http://sunrisemarketanddeli.com/uploads/1/3/0/3/130323187/0e587ff4a64faeb.pdf
    • http://innsandtours.com/uploads/1/3/0/3/130313149/42c88159e494.pdf
    • http://wellingtonyogawithpenina.com/uploads/1/3/0/6/130639557/e76be78322142.pdf
    • http://evangelizingyourself.com/uploads/1/3/0/6/130621212/vefaduvalaw-jidunoni-rizenoxinatukog.pdf
    • http://path.wolc.com/uploads/1/3/0/4/130476564/88d99.pdf
    • http://mcqjz.bpmtc.com/uploads/1/3/0/6/130620509/130620509.html#dead+poets+society+cast+today

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010d1.bin
9862c445f174bbb9baeafef54d5f3fd96f56177ac112cd17b946c74e780334b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D1 9524 bytes

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