Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a4e11c2cb03e9dc…

MALICIOUS

PDF

88.0 KB Created: 2021-03-08 11:40:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: b59e56fb5ce44257c4c3c9bb8cb9dfdc SHA-1: 7ffa4d9fd7ffa294fc56151e97fd382a4411e6c2 SHA-256: 0a4e11c2cb03e9dcb74011eee954593acdce306675a166d9120b2953b2263b1a
126 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a link farm on disposable hosting, and a machine learning classifier flagged it as malicious. The embedded URL 'https://dugedepap.ru/award?keyword=angel+investors+list+pdf' suggests a phishing attempt to trick users into believing they are accessing a legitimate document. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with phishing lures designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://dugedepap.ru/award?keyword=angel+investors+list+pdf PDF link annotation
    • http://tinesemexogo.mygamesonline.org/why_was_hope_in_pandoras_box.pdfIn PDF document text
    • http://ludshop.xyz/weralukobagevetagubutamlxwap.pdfIn PDF document text
    • https://cdn.sqhk.co/xolofiwano/hieLU6P/wolf_wallpaper_3d.pdfIn PDF document text
    • https://cdn.sqhk.co/givesaxi/hhhgSgd/52044231647.pdfIn PDF document text
    • https://cdn.sqhk.co/vukixukafoga/I2hebXf/39072126716.pdfIn PDF document text
    • http://jakartapro.xyz/pesuwoximuwabawipeketubovwmkh3.pdfIn PDF document text
    • http://dupamineni.medianewsonline.com/vezetumusezixu.pdfIn PDF document text
    • https://cdn.sqhk.co/jovowosifo/iifjaLf/62418881975.pdfIn PDF document text
    • http://universal-kirov.ru/tujudokujarotifatolgll0u.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuperik/cjiWgj3/73930683690.pdfIn PDF document text
    • http://instapriz.online/journey_to_the_west_the_demons_strike_back_full_movie_in_hindi_download_hde1uzd.pdfIn PDF document text
    • http://persequenteamsohbet.com/columbia_flexible_capital_income_fund_fact_sheet7nv8o.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://aa3bb5c3-2bd4-4791-9e2a-6e31d5009b04.filesusr.com/ugd/60e703_abc1d2ccc5fb4d43ab20c035d0bebb17.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/patotale/bim_execution_plan_template.pdfIn PDF document text
    • https://7be8961d-effb-4c78-a255-78c3c9f0be09.filesusr.com/ugd/3dd68e_44cca238adcc47ac8f2dd7ac6763acb2.pdf?index=trueIn PDF document text
    • http://bozudob.epizy.com/fijuwaguwu.pdfIn PDF document text
    • https://s3.amazonaws.com/sazomo/narasimha_kavacham_tamil.pdfIn PDF document text
    • http://mewizokefa.rf.gd/d_d_divine_soul_sorcerer_guide.pdfIn PDF document text
    • https://dec4a425-646e-450a-80ca-a73a75d058ad.filesusr.com/ugd/ba3095_b138caf26798450db2a4b7c407cd332b.pdf?index=trueIn PDF document text
    • https://dae57379-2785-4108-a223-4562ecbfc22e.filesusr.com/ugd/87ad98_ca317c01e54d4537a5911e17a5f26b11.pdf?index=trueIn PDF document text
    • http://dowijasimenazo.epizy.com/gal_gadot_images.pdfIn PDF document text
    • https://40ba1f7a-6e91-49bb-bbb8-dfbb40a2bc60.filesusr.com/ugd/22bf55_b727401bf3034fe08ebd7d66c98b1cb3.pdf?index=trueIn PDF document text
    • http://luvigewe.rf.gd/lineage_2_arbalest_guide.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_off00011cb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CB5 5048 bytes
SHA-256: 0b5da9ec6258856637cf6e57f83022e97cfa662788a9268e07eb5a0dd54f045d
font_01_sfnt_off00012e05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E05 10664 bytes
SHA-256: 7dc7f740694c10f55c7ce2db1ee31288482f1cf0ce2c37494c39d60280827c07

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