Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cf042788f158247…

MALICIOUS

PDF

73.8 KB Created: 2021-02-11 20:20:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: fb4ef73eface292d366ee0fab2a35f24 SHA-1: 4baf49f68cf80be45f8f308e0d1873778e26393f SHA-256: 0cf042788f15824780c4999a5dc7f10dbe24779ee5ef00c52b26a9506c19569e
156 Risk Score

Malware Insights

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

The PDF contains embedded URLs and heuristic firings indicating it is a malicious phishing document. The document body, though heavily obfuscated, contains text related to a "game of war gold hack 2019", suggesting a lure to a scam website. The presence of external URI firings and a high ML classifier score further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 https://maypoin.ru/wix?keyword=game+of+war+gold+hack+2019 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4477921/normal_601315ef9e302.pdfIn PDF document text
    • https://cdn.sqhk.co/josedinis/ibBha2d/registro_brasfoot_2020_funcionando_yahoo.pdfIn PDF document text
    • https://zimegusak.weebly.com/uploads/1/3/4/6/134605775/kaporimekulof-mativirujav-jafaja.pdfIn PDF document text
    • https://cdn.sqhk.co/kigaratak/hhjdK3y/bezaxav.pdfIn PDF document text
    • https://dowogejur.weebly.com/uploads/1/3/5/9/135992185/7241307.pdfIn PDF document text
    • https://jevejokanidepit.weebly.com/uploads/1/3/0/9/130969277/lofewobotefeb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486053/normal_5ffc1ddfc1b65.pdfIn PDF document text
    • https://cdn.sqhk.co/limiwebu/6dhfhjl/virus_protection_for_macbook_pro_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491450/normal_5fe1bf3bb86c2.pdfIn PDF document text
    • https://kigilejujagenit.weebly.com/uploads/1/3/1/4/131438309/tolatalibowapub.pdfIn PDF document text
    • https://cdn.sqhk.co/fiziroluj/hdihWHj/jajopafa.pdfIn PDF document text
    • https://luzatewuxajexi.weebly.com/uploads/1/3/4/2/134265782/4197634.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446915/normal_5fd805aef0401.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/chikati_gadilo_chithakotudu_audio_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/mamukawaxatali/graphics_card_for_laptop_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/fifuto/cfpb_monthly_complaint_report.pdfIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/birdland_big_band_score.pdfIn PDF document text
    • https://s3.amazonaws.com/zumomasugipeno/articulacion_tibioperonea_astragalina.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/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e08f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE08F 5924 bytes
SHA-256: c840d867aef9835d7424a735b5bc2cc3e261cbb5520fc003abc25576580ca6ac
font_01_sfnt_off0000f4af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4AF 11424 bytes
SHA-256: ff9584af5fdef5c2aaaddb0fb6e814f8d27334c47f5d8f1964e46bc7883901e6

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