Malicious PDF — malware analysis report

Static analysis result for SHA-256 2702eb5e2e009e60…

MALICIOUS

PDF

66.8 KB Created: 2020-06-09 06:58:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-08-25
MD5: 06876695a945e929fe1db7ec51de5992 SHA-1: 6e237d609519c295da1b104bc91a6f8fc6a4c745 SHA-256: 2702eb5e2e009e6042aec7b76ca648bf750f48d6d1a826d6def44a9c937b89d2
104 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, many of which point to domains associated with SEO link farms. The document body, though partially corrupted, includes a lure related to 'Youtube to mp3 musica instrumental' and a call-to-action phrase, suggesting a deceptive intent. The heuristic 'PDF_SEO_LINK_FARM' strongly indicates that this PDF is part of a network designed to manipulate search engine rankings or redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://mail.speluqueros.com/uploads/1/3/0/5/130550910/130550910.html#youtube+to+mp3+musica+instrumental PDF link annotation
    • http://waterboony.com/uploads/1/3/0/7/130775758/pesemotug_lomedegiw.pdfIn PDF document text
    • http://pastoralpopcorn.com/uploads/1/3/0/6/130621496/votatax.pdfIn PDF document text
    • http://wealthwavetexas.com/uploads/1/3/0/8/130874082/forexosedol.pdfIn PDF document text
    • http://mail.jangrunow.de/uploads/1/3/1/3/131379726/7303086.pdfIn PDF document text
    • http://partyuniversity.org/uploads/1/3/0/7/130775002/a81588338b6d.pdfIn PDF document text
    • http://mea19.com/uploads/1/3/0/3/130324112/dea748.pdfIn PDF document text
    • http://redlitestudio.co/uploads/1/3/1/6/131607919/nisimus_tinukozogibipo.pdfIn PDF document text
    • http://subletbyowner.com/uploads/1/3/0/4/130488382/5037117.pdfIn PDF document text
    • http://scripts.sil.orgThisIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://wumubazoj.files.wordpress.com/2020/06/netodata.pdfIn PDF document text
    • https://nefirizawira.files.wordpress.com/2020/06/bifokobijapeburararukejo.pdfIn PDF document text
    • https://simogotagewi.files.wordpress.com/2020/06/devijakupenabipububod.pdfIn PDF document text
    • https://bojusinowawa.files.wordpress.com/2020/06/gurubujukavavozeda.pdfIn PDF document text
    • https://baxozexele570707799.files.wordpress.com/2020/06/9222848013.pdfIn PDF document text
    • https://jararevus.files.wordpress.com/2020/06/vulafibubunuwef.pdfIn PDF document text
    • https://rufutusizuk.files.wordpress.com/2020/06/pozevezigox.pdfIn PDF document text
    • https://noxepirowako.files.wordpress.com/2020/06/wuraworinaruwezu.pdfIn PDF document text
    • https://lasifirav173464526.files.wordpress.com/2020/06/70610780864.pdfIn PDF document text
    • https://gerorixome653430236.files.wordpress.com/2020/06/banepimeribuxujalenowe.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
    • http://scripts.sil.org/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://scripts.sil.org/OFLAbyssinicaIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000083e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83E8 20800 bytes
SHA-256: 8f3c6ac098290535930a62471c59cc01db724254982e8b22b5293056f919eaaa
font_01_sfnt_off0000a38d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA38D 5252 bytes
SHA-256: a3e11f9c29c5f1f327e85e51acdca3a146d04b124b0da9fb2ab9ecac57ed307d
font_02_sfnt_off0000b59f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB59F 14080 bytes
SHA-256: e008246e3bc8868dd3ca5f279e4cbea60a380a0898e69db9137de868eed48bac
font_03_sfnt_off0000e273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE273 17984 bytes
SHA-256: eb49478aaa6bf760a2433533713ca4f39e135727a1b9a57912ce6b236a7685c4

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