Malicious PDF — malware analysis report

Static analysis result for SHA-256 34e138efe334e907…

MALICIOUS

PDF

38.4 KB Created: 2020-03-22 04:08:37 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: dfd309f9dbdf81cb3fb9b1db8dbf8ffd SHA-1: 208a250fd8af9ce5532f815b2066538daf325ba6 SHA-256: 34e138efe334e907bd7a7f29f8f62720351665da98e8947d2afdd86435f4115d
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. The document contains numerous external links to various domains, suggesting a link farm or redirection mechanism. The presence of the string 'Tasco 3-7x20 rimfire rifle scope' in the document body, along with the embedded URLs, indicates a lure to external content, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.Dropper.Agent-9608426-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-9608426-0
  • 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://forumtechnologyventures.com/uploads/1/3/0/5/130588332/130588332.html#tasco+3-7x20+rimfire+rifle+scope
    • http://buffaloveteranstories.com/uploads/1/3/0/4/130476650/domiwumolomozi.pdf
    • http://www.alivacious.com/uploads/1/3/0/7/130739156/tutijusezotov-biritigobowe-samoxamalizawes-tusidexepo.pdf
    • http://go3starlogistics.com/uploads/1/3/0/9/130969572/vapurulaja.pdf
    • http://blubloggs.com/uploads/1/3/0/8/130873864/nebuvuwadokaki_zafarafoxesaril.pdf
    • http://mlfickcourtlandkindergarten.com/uploads/1/3/0/2/130270932/fetiridideda_reliv_seraxisixesim.pdf
    • http://novaimmobilien.eu/uploads/1/3/0/4/130475981/pivomiduludib_ratotuz_sopud_tugeb.pdf
    • http://fairfieldsoftware.com/uploads/1/3/0/7/130740184/3a68f7c26d.pdf
    • http://truthbetoldmedia.com/uploads/1/3/0/8/130874282/gusibe_tarejide_zegoponozutixo.pdf
    • http://windrunnerequinesanctuary.us/uploads/1/3/0/7/130738503/16d5c7aadef941.pdf
    • http://www.thesensible.net/uploads/1/3/0/4/130489446/58e2b05.pdf
    • http://mx.rachaeltilly.com/uploads/1/3/0/6/130622048/liwotomokupowosinego.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_off00006d7b.bin
c7428736b96553b8d469ad8a1ef31271cb524b3a86363521c149e0bec1880bf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D7B 8124 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.