Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb2fa9075c96285d…

MALICIOUS

PDF

76.8 KB Created: 2021-01-24 11:46:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 5b9e708c13d0c2f2d4ceeb6b8ea6b53e SHA-1: 92b3d399efc8b1eb3fb11d6899dbd06f98a2be22 SHA-256: fb2fa9075c96285db659193eacbbedf625402c9b924ee5467cfcbcde08644445
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into visiting a phishing site. The document body, though heavily obfuscated, suggests a lure related to driver's license lookups.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://crophysi.ru/123?utm_term=ohio+drivers+license+lookup PDF link annotation
    • http://sis-paypal.com/flight_sim_2018_apk_free_download2u4ej.pdfIn PDF document text
    • https://cdn.sqhk.co/kavejufa/Vhjhejg/crossword_clues_in_brackets.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426687/normal_6008b5614e77e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425912/normal_5fd118a3c17d1.pdfIn PDF document text
    • https://nanoxoxudotu.weebly.com/uploads/1/3/0/8/130814682/5b9367c8154b87b.pdfIn PDF document text
    • http://table-wait.com/femasasb0t30.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384154/normal_5fe0e308756a7.pdfIn PDF document text
    • http://ccckkkkk.space/vematemonuzivut3yry.pdfIn PDF document text
    • https://cdn.sqhk.co/zopinulepa/VujbggX/58073075438.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371258/normal_5fefed9f33746.pdfIn PDF document text
    • https://zexotanus.weebly.com/uploads/1/3/0/8/130873712/gumami.pdfIn PDF document text
    • http://nefritthebestthing.site/44277841416althn.pdfIn PDF document text
    • https://cdn.sqhk.co/ralapogifur/YjayGib/22915604016.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/wusigipufuvowix/gmail_imap_settings_android_phone.pdfIn PDF document text
    • https://s3.amazonaws.com/fivebo/chateau_d_ax_letto_contenitore_formentera.pdfIn PDF document text
    • https://s3.amazonaws.com/gagagakigibapo/dizanuvexumadafonap.pdfIn PDF document text
    • https://s3.amazonaws.com/muvevanepen/5822031559.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_off0000f0b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B7 5100 bytes
SHA-256: f08651f3b09ee4ab7d2d0a1fd0f65ff93cea194c0437bdb066a53df4e5215a6b
font_01_sfnt_off00010215.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10215 10484 bytes
SHA-256: 8490be6c8d3ffdb779c5888b52f9c60b291a11f2ea6977d3ebba1d00a8ef707a

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