Malicious PDF — malware analysis report

Static analysis result for SHA-256 64a75cbf4f91e963…

MALICIOUS

PDF

41.9 KB Authoring application: GIMP
MD5: 7944be0c68dac0299aaf79d19b379860 SHA-1: 59fcba361f2b25f73cee3998b0469e29eb577f28 SHA-256: 64a75cbf4f91e96333c02e16fb7da867f8a3d23aaf258cf667679c7c4b0302de
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to host malicious content. ClamAV detected this file as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', indicating a phishing or malicious redirection attempt. The ML classifier also strongly flagged this PDF as malicious.

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://alanmg.com/uploads/1/3/0/6/130621533/a6edcf42b.pdf
    • http://blacklocustlumber.eu/uploads/1/3/0/6/130605509/mimin.pdf
    • http://kweku.info/uploads/1/3/0/3/130313495/6892533.pdf
    • http://gur.best-journal.ru/uploads/2020/01/28/b6698757c270d.pdf
    • http://eovma.fun/uploads/2020/01/28/junoga.pdf
    • http://micasitarentals.com/uploads/1/3/0/6/130640079/7905684.pdf
    • http://theanxietyproject.org/uploads/1/3/0/2/130272283/sekepozinup.pdf
    • http://designsbycarolann.com/uploads/1/3/0/2/130270738/mimetobejesa.pdf
    • http://abidinghopeinstitute.org/uploads/1/3/0/3/130379354/051fe1e7b2f5.pdf
    • http://teterisud.maisfutebol.online/uploads/2020/01/28/5689cda8023a2.pdf
    • http://mhsptsa.org/uploads/1/3/0/6/130604639/wezoxo.pdf
    • http://trentriverdesigns.com/uploads/1/3/0/4/130476060/130476060.html#birthday+song+for+my+daughter

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001242.bin
cabd88e4fade53f94811058b31b2622dac27dd2cabb96df5212f2d72d388dd6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1242 7688 bytes

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