Malicious PDF — malware analysis report

Static analysis result for SHA-256 65492468914064db…

MALICIOUS

PDF

74.7 KB Created: 2021-03-24 20:01:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c0bfa0008caf125a6ec93aa2a4266a50 SHA-1: d7c6e07c59e07bb98fe70c490f0d9531146d5a12 SHA-256: 65492468914064db05d85bd1a1673e98e046f7bdf1dd47fa2b78f4da946ed622
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI that redirects to a URL associated with a phishing lure, disguised as search results. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the PDF content suggest it's designed to lead the user to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 https://dafemum.ru/wix?keyword=geo+bee+questions+2020
    • http://fetoxuk.mywebcommunity.org/jutopora.pdf
    • http://instapriz.online/important_quotes_from_the_crucible_act_1_with_page_numbers070da.pdf
    • https://cdn.sqhk.co/vovomafejuwa/8ihjfib/31954270963.pdf
    • http://bikomowaxibujoj.medianewsonline.com/92588415214.pdf
    • https://xowemaxixedire.weebly.com/uploads/1/3/5/3/135325030/3cc50263f5334b.pdf
    • http://ionatr.fun/theory_of_justice_musicalec0xg.pdf
    • https://gojufoviwovefu.weebly.com/uploads/1/3/4/5/134515133/a2246b955cc2cf.pdf
    • https://cdn.sqhk.co/pixefavenar/25GhatK/ddpai_x2_pro.pdf
    • http://nositadox.mypressonline.com/for_elise_piano.pdf
    • https://woxazalaxit.weebly.com/uploads/1/3/4/2/134235403/1ea0cd5c.pdf
    • http://ppl-nutrshopfit.website/ancient_india_by_rs_sharma_in_hindihjrbc.pdf
    • https://jalusuduzewot.weebly.com/uploads/1/3/1/4/131456012/xixoluzoxag.pdf
    • http://punejew.mygamesonline.org/senejakuwafemulinerode.pdf
    • https://cdn.sqhk.co/tumupowe/BwhejcC/49230136645.pdf
    • https://xekuvezenigut.weebly.com/uploads/1/3/5/3/135346982/pimuxavozo.pdf
    • http://testersairf.xyz/university_of_toronto_essay_format96cdd.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://39dd5e1d-a581-41ec-a80f-9e19245c660f.filesusr.com/ugd/c2656d_03ff241f26f44077af6b17280a5eb56a.pdf?index=true
    • http://viniwowosur.onlinewebshop.net/44360738192.pdf
    • https://s3.amazonaws.com/zurovajij/croup_guideline_nice.pdf
    • https://s3.amazonaws.com/wajufifenoxuj/certified_ethical_hacker_book_v10.pdf
    • https://cad90261-f038-4e8a-b384-2e0e37e6cb8c.filesusr.com/ugd/4c4e45_67dcff2a84ad47489ae62af3585ad7cd.pdf?index=true
    • https://s3.amazonaws.com/juduk/musolelakekelilevav.pdf
    • https://s3.amazonaws.com/roware/bike_racing_game_apkmonk.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e773.bin
ae8e0b60953ee60b5c196dabb99fe02f1a6288b8b64aeeb6f23ff7bdaf2b75d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE773 4912 bytes
font_01_sfnt_off0000f849.bin
3d45a3331c91024cd8fbb99e6156474ea06870f8cdbbee38bf594c3166e9b810		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF849 10892 bytes

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