Malicious PDF — malware analysis report

Static analysis result for SHA-256 68baeecf77d46be5…

MALICIOUS

PDF

75.5 KB Created: 2021-03-27 15:50:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 2c1d879a77a2ce4f5ff0c92ee9c5529c SHA-1: 7ae43e3232dceea0a9f700c9b9d64c671a1201af SHA-256: 68baeecf77d46be5bb96cf36a30d2b7ca73effeddc0b8abb4fbf61ef2b56a37a
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The embedded URL and heuristic firings indicate a redirection to an SEO redirector, likely for a free-download phishing scheme. The document body, though heavily obfuscated, contains references to 'Terrorblade mid guide', suggesting a lure to attract users interested in gaming.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://gimoguvi.ru/123?utm_term=terrorblade+mid+guide PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4483842/normal_5ffed046f2df6.pdfIn PDF document text
    • http://jamedoxeka.22web.org/favia_coral_care_guide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379491/normal_5fdecd308b0a3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458122/normal_5fc9bb7117081.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462368/normal_6037b56bd4c7e.pdfIn PDF document text
    • http://sk-anker.ru/the_rules_of_work_book_summaryoz5sy.pdfIn PDF document text
    • http://tgesheff.xyz/toastmasters_table_topics_questionscpdgr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470017/normal_602a4511b9f58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421613/normal_5fdc58225e18d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384822/normal_5ff17577ccecb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450347/normal_5ffb5bb73e6e7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/28ebc65f-3390-4152-95d6-c4bf0062ed63/56422814661.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a15d2c1-9073-452b-b845-bfdae9c1bb0a/46102174128.pdfIn PDF document text
    • https://s3.amazonaws.com/xapota/what_is_an_example_of_positive_and_negative_reinforcement.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7dede706-6615-48ec-a5da-0f10304ea5db/seafood_restaurants_cannery_row_monterey.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/30039109850.pdfIn PDF document text
    • https://s3.amazonaws.com/nupotukig/chalkboard_party_invitation_template_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02030491-1554-40d3-b7f9-500fd791af3f/39136485863.pdfIn PDF document text
    • http://puzazusor.rf.gd/74667533543.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000deb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEB4 4752 bytes
SHA-256: 8b19ba4ad9cf94cdea285ebc25197cf23995ef40d93a516c0de1076bc8cb61ed
font_01_sfnt_off0000eecf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEECF 10580 bytes
SHA-256: 7e063807c2e8e63b22f9bab22024f084fd36d1f6335b74bade16fbf45efa20e4
font_02_sfnt_off000112cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112CC 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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