Malicious PDF — malware analysis report

Static analysis result for SHA-256 005e01f50e70b1cb…

MALICIOUS

PDF

34.7 KB Created: 2020-03-30 06:59:57 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 965336f65a8a5f4520e74c3845c53f8d SHA-1: 92eab09274471a8f21aa4a3f13753a4de2898b7e SHA-256: 005e01f50e70b1cbea9c074193c59addc2499d08409b60e5f9504483fbbd8953
96 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though malformed, contains a URL that is also present in the list of external links. This suggests the primary purpose is to redirect users to a network of websites, potentially for SEO spam or to host further malicious content.

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://sweetestdreams.org/uploads/1/3/0/4/130488399/130488399.html#aashiqui+2+hindi+naa+songs+download+mp3
    • http://fightbadcustomerservice.com/uploads/1/3/0/7/130739919/8480361.pdf
    • http://endoftheroad-ak.com/uploads/1/3/0/2/130289301/88f18a.pdf
    • http://narrowbandingcoordination.com/uploads/1/3/0/5/130551264/vugalemaxove.pdf
    • http://benhasefer.com/uploads/1/3/0/3/130324326/ba84d9e90de459.pdf
    • http://michaelpenkas.com/uploads/1/3/0/5/130551142/5624594.pdf
    • http://carolpelkner.com/uploads/1/3/0/6/130603861/1958771.pdf
    • http://hostmaster.northstarav.co.uk/uploads/1/3/0/7/130738803/tidurimejiferabaraju.pdf
    • http://en-route-llc.com/uploads/1/3/0/5/130544147/zemup.pdf
    • http://rolfverhoeven.nl/uploads/1/3/1/3/131380065/jupilunirim.pdf
    • http://mymadskillsonline.com/uploads/1/3/0/4/130488152/dakapa-zipololiwibafax.pdf
    • http://thats-so-math.org/uploads/1/3/0/3/130379743/8d6360b.pdf
    • http://theperfumenetwork.com/uploads/1/3/0/8/130874413/jawulinixu-nejotamamodo.pdf
    • http://glowupglamshop.org/uploads/1/3/0/7/130776032/guvefakuwemigawifon.pdf
    • http://rcbcfund.com/uploads/1/3/0/4/130436080/9499291.pdf
    • http://mail.moduledesigners.com/uploads/1/3/0/4/130489055/7937024.pdf
    • http://fredfloridalaw.com.br/uploads/1/3/0/3/130323375/vixawukivutav_kisuzejugetej.pdf
    • http://smutandbonbons.com/uploads/1/3/0/3/130379173/vatofaxow_wazexu_tawajikazov.pdf
    • http://gainstriveband.com/uploads/1/3/0/8/130813117/nitin.pdf
    • http://speechfultherapyservices.com/uploads/1/3/1/0/131070124/rejonevuz_timodabikoka_letepinokem.pdf
    • http://ags-us.com/uploads/1/3/0/7/130739994/4652605.pdf
    • http://www.anteradrones.com/uploads/1/3/0/7/130775624/mavobi.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_off00005f85.bin
44e90f8a069045c53ae1cecfc0691e2b99d37a3eeeed2fdf9bdd8d6bd8f7a255		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F85 7024 bytes

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