Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f37d558a55d67eb…

MALICIOUS

PDF

51.5 KB Authoring application: Serif PagePlus
MD5: f05b33d55c3562f3bda35441f8df9bd6 SHA-1: 8f2c3157237af79ab1ad720ed6b2742ee5405384 SHA-256: 0f37d558a55d67eb62293e8133ac10849e2206955471aeb53ed3534706882a8f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. The document contains a large number of embedded URLs pointing to external PDF files, suggesting a link farm or redirection scheme. The presence of these links and the overall structure strongly suggest a phishing or SEO spam attack, likely intended to drive traffic to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://sweetlyavas.com/uploads/1/3/0/7/130739223/tazuzezeduja_vifoxosigawoj_tewemunofazuwad_guvarugute.pdf
    • http://swankyfork.com/uploads/1/3/0/6/130604447/354805.pdf
    • https://tezupeduw.weebly.com/uploads/1/3/0/3/130313307/dogefap.pdf
    • http://mymaplehillfarm.com/uploads/1/3/0/6/130604536/delitaxepober.pdf
    • http://rimefubit.new-m2.ru/uploads/2020/01/29/a1891a.pdf
    • http://crossingbridgeslifecoaching.com/uploads/1/3/0/2/130288523/kimaliboxizerazivar.pdf
    • http://ghastlymonstrosities.com/uploads/1/3/0/3/130313115/5698214.pdf
    • http://amywhitaker.me/uploads/1/3/0/6/130639028/vomaripekawut_soniwoj.pdf
    • http://alvarezorganicfarm.com/uploads/1/3/0/4/130483606/ce8e84f347.pdf
    • http://andro-help.ru/uploads/2020/01/29/titemiwotuwegu.pdf
    • http://pupemek.theanimationstation.us/uploads/2020/01/28/46ad67acba92.pdf
    • http://soxpal.com/uploads/1/3/0/3/130379506/afd0b36f765fc89.pdf
    • http://manwithgunband.com/uploads/1/3/0/3/130379474/130379474.html#achilles+tendon+surgery+or+cast

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000118a.bin
0812021c3727cb693777d9fc0c2bf27ffafff0997278e738bd0578ac999e4595		 pdf-font-stream PDF embedded font (sfnt) at offset 0x118A 7636 bytes

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