Malicious PDF — malware analysis report

Static analysis result for SHA-256 264998a6dd658c66…

MALICIOUS

PDF

40.4 KB Created: 2020-04-08 22:55:25 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 2fc6740e18338d8651773d3bb63ca0b3 SHA-1: 200bd654486b3e9122aee2567915dcf0341d1502 SHA-256: 264998a6dd658c66decdd31d5dd2c939c6fe63fae47d3bbca1b6ba63821019fe
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 point to other PDF files hosted on various domains. This behavior is indicative of a link farm designed to deceive users into clicking through to potentially malicious content, such as fake software download sites. The presence of the URL containing "minecraft pe free download aptoide" suggests a lure for popular software. The ML classifier strongly flagged this PDF as malicious.

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://ameenahsan.in/uploads/1/3/0/4/130483860/130483860.html#minecraft+pe+free+download+aptoide
    • http://archielondon.com/uploads/1/3/0/6/130639489/444b9397fa58.pdf
    • http://bonjourbienvenue.com/uploads/1/3/0/7/130775014/kotabonov_lilipow.pdf
    • http://eandmclub.com/uploads/1/3/1/4/131407367/zigurarixibene_nipamek_jinavuvax.pdf
    • http://zendogslc.com/uploads/1/3/0/7/130740340/vigil-wiroxuzo-xovupe.pdf
    • http://tuncon.net/uploads/1/3/0/5/130547689/buvajoxa.pdf
    • http://straightuppartyrentals.com/uploads/1/3/0/5/130590637/ruras.pdf
    • http://yogaforanyone.com/uploads/1/3/0/2/130270953/femisilotapija-zikolef-lupaz.pdf
    • http://drywallrepairbenton.com/uploads/1/3/0/2/130273845/rikorus.pdf
    • http://lifestylechiroevents.com/uploads/1/3/1/4/131407965/929c4b3add2f3e7.pdf
    • http://radioactiveantiques.com/uploads/1/3/1/0/131070598/f59eb93658.pdf
    • http://jbbaircon.com/uploads/1/3/1/0/131070317/6441765.pdf
    • http://globalstarpartners.com/uploads/1/3/0/6/130620486/d8cdeca3a.pdf
    • http://supernovainstitute.com/uploads/1/3/0/7/130776490/9f9f62dcc4e.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_off000074e1.bin
f5c5658bc43716ffc4ee792e77e88bc1be724fcea55fc7b36bb922b7ac1a7683		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74E1 8200 bytes

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