Malicious PDF — malware analysis report

Static analysis result for SHA-256 326e962622491db0…

MALICIOUS

PDF

41.1 KB Created: 2020-03-29 10:02:31 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 8a00b28519185887fef2cc4dbe6c09c1 SHA-1: ad8073be306af96b573be1f9faa9d1fb217cc0c3 SHA-256: 326e962622491db0ee085b1d150b2d9cb254294c3f92863998c819e4416c4a19
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, indicating a potential SEO spam or content redirection scheme. The document body itself is heavily obfuscated and contains fragments of these URLs, suggesting the primary purpose is to drive traffic to these external sites. No scripts were extracted, and the document body's content is not directly indicative of a specific threat beyond link farming.

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://74-123-72-68.mgwnet.com/uploads/1/3/0/3/130313702/130313702.html#wizard+of+oz+quotes+scarecrow+hypotenuse PDF link annotation
    • http://cloudbastard.com/uploads/1/3/0/3/130313173/sikamimininaju-bojujofevul-virepafagumape-kexokixebagijek.pdfIn PDF document text
    • http://cometomejudy.com/uploads/1/3/0/4/130475979/banerukuwiwojix_dexuzikej_waxivifaxegev_zafevaga.pdfIn PDF document text
    • http://wordmadefresh.org/uploads/1/3/0/7/130738883/sokil-kuduroguvabopur-nurofiko-zabaguwagaveto.pdfIn PDF document text
    • http://projecttransaction.com/uploads/1/3/0/2/130288391/sobuv.pdfIn PDF document text
    • http://cuntstorm.org/uploads/1/3/0/6/130639054/pinamukekaboda.pdfIn PDF document text
    • http://urbandharmastudios.com.au/uploads/1/3/0/5/130541881/zumelogisemev.pdfIn PDF document text
    • http://www.sawhilbanquet.com/uploads/1/3/0/2/130288381/111e1d4.pdfIn PDF document text
    • http://kris-chen.com/uploads/1/3/0/7/130775357/rujafu-jasag.pdfIn PDF document text
    • http://www.dawnbryan.com/uploads/1/3/0/2/130289676/melisi-nixiwukativo-daluliwitusal-fazon.pdfIn PDF document text
    • http://v-techsnc.com/uploads/1/3/0/7/130775922/f918c63.pdfIn PDF document text
    • http://rustbeltbikes.com/uploads/1/3/0/6/130640070/045038fa.pdfIn PDF document text
    • http://mail.constructivistpsych.org/uploads/1/3/0/4/130483653/383bdfd8.pdfIn PDF document text
    • http://qtechbiz.com/uploads/1/3/0/6/130621979/xexenaf_bemadikejaje.pdfIn PDF document text
    • http://knotmaker.com/uploads/1/3/0/5/130539072/pumure.pdfIn PDF document text
    • http://highlandsadventureco.com.au/uploads/1/3/0/7/130775641/dewugebegowudiwales.pdfIn PDF document text
    • http://shopkeosauqua.com/uploads/1/3/0/8/130874585/fiporinuve.pdfIn PDF document text
    • http://smartdogsweb.com/uploads/1/3/0/6/130640142/beziroliponel-nukojabilox-wujorop-kolafuzinufa.pdfIn PDF document text
    • http://damorse.com/uploads/1/3/0/7/130775456/jujivo_devew_wepamapirewemed.pdfIn PDF document text
    • http://partysuv.com/uploads/1/3/0/8/130873851/dapuvufa-nubirozuva.pdfIn PDF document text
    • http://trustworthycleaningbiz.com/uploads/1/3/1/0/131071113/23515006fddbcc3.pdfIn PDF document text
    • http://www.maximilianioan.com/uploads/1/3/0/6/130620274/cd345.pdfIn PDF document text
    • http://northerncoloradofarrier.com/uploads/1/3/1/1/131164504/mojividuniwuwaz.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000778e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x778E 7968 bytes
SHA-256: d055259f81552480d99cd71573776dcdf6137e15447f1b0fab73277c5288dcd3

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