Malicious PDF — malware analysis report

Static analysis result for SHA-256 96f4dd0013048f7d…

MALICIOUS

PDF

39.2 KB Created: 2020-03-16 04:17:07 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 175221632ef494d40eb9dcd1cc36585d SHA-1: d06b699704cef1cd33c0a750ed55ebad9e69cbad SHA-256: 96f4dd0013048f7d66e3e251045d80b580033f35c75d2e48f62a01b1ae9b7b51
94 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are dynamically generated and point to seemingly unrelated domains. The document body text, though partially obfuscated, mentions 'Street fighter 5 android free' and includes a primary URL that also references this lure. This suggests a link-farming or redirection scheme designed to trick users into visiting malicious sites. No scripts were extracted, and the primary malicious activity appears to be the distribution of numerous external links.

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://74-123-77-240.mgwnet.com/uploads/1/3/0/5/130589231/130589231.html#street+fighter+5+android+free
    • http://foreveryounglive.com/uploads/1/3/0/9/130969587/fepebit_vebojekurulobuz_nisosa_parusanefewunel.pdf
    • http://longplumbers.com/uploads/1/3/0/5/130589205/5805634.pdf
    • http://fifthgearpowersports.com/uploads/1/3/0/6/130604197/xepesesokefelugenavi.pdf
    • http://jennys5jewelryfix.com/uploads/1/3/0/7/130775940/gusatonef.pdf
    • http://neurodiverseatl.org/uploads/1/3/0/2/130292007/b739392523da.pdf
    • http://organicolosangeles.com/uploads/1/3/0/3/130313075/c0f08be39230f.pdf
    • http://www.rawdesignsbybrooke.com/uploads/1/3/0/3/130379049/8092894.pdf
    • http://www.8trackstore.com/uploads/1/3/0/9/130969636/6288705.pdf
    • http://monolid.net/uploads/1/3/0/7/130776872/bosodideg.pdf
    • http://bigorangemkt.com/uploads/1/3/0/8/130815017/494583.pdf
    • http://visceraldancecompany.com/uploads/1/3/0/5/130589229/211c39d.pdf
    • http://zentdd.com/uploads/1/3/0/5/130551558/vikaludibak.pdf
    • http://pescorp.org/uploads/1/3/0/7/130738646/kanaz-kojekiwisenoso.pdf
    • http://magicalcryptofriends.net/uploads/1/3/0/7/130776159/rigigaw.pdf
    • http://bundlekings.com/uploads/1/3/0/3/130323406/kejuzabamepozigab.pdf
    • http://mta-sts.mail.idahohorsecouncil.com/uploads/1/3/0/3/130379272/4404119.pdf
    • http://playforgood.com/uploads/1/3/0/7/130775372/viderugezaxuvuduzi.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_off00006ff6.bin
a9f733e7639527aad784cc14c3a3727e8d3a781d9507a1ec828cb99471abdfa5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF6 8132 bytes

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