Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec7aa46ee119154f…

MALICIOUS

PDF

77.2 KB Created: 2021-03-29 20:06:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: f13f26ebbda121cb6a954d87ab8d113e SHA-1: 99450b058f934210dd81e8e7208f6f27ece4493d SHA-256: ec7aa46ee119154f1d7e237e879955f31eabe853f715c8cf2f2a84a24e4a274e
146 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating maliciousness. The 'SE_CALLBACK_LURE' heuristic suggests a phishing or tech-support scam pattern, further supported by the presence of numerous external URLs, one of which is presented as a 'survival guide'. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate an attempt to redirect the user to malicious content, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://ponafet.ru/123?utm_term=franklin+institute+camp+in+survival+guide PDF link annotation
    • https://cdn.sqhk.co/sativomofij/eidwli9/16625282011.pdfIn PDF document text
    • https://cdn.sqhk.co/tefozakozup/TFghihT/89737812169.pdfIn PDF document text
    • http://mixedevik.22web.org/lenakevafuwujibon.pdfIn PDF document text
    • http://sukutoxuwurif.mywebcommunity.org/57923263979.pdfIn PDF document text
    • https://cdn.sqhk.co/pesamelez/hhhdhbS/80173546860.pdfIn PDF document text
    • https://cdn.sqhk.co/ruzaxube/UiaQiaN/demalena.pdfIn PDF document text
    • https://cdn.sqhk.co/pemenixa/uhg4gia/domino_s_pizza_challenger_ave_roanoke_va.pdfIn PDF document text
    • http://fobativ.mywebcommunity.org/btc_first_semester_books_download.pdfIn PDF document text
    • http://xufededubumavif.scienceontheweb.net/zudebonizupo.pdfIn PDF document text
    • http://siwosupegejolop.medianewsonline.com/the_crown_on_your_head_text.pdfIn PDF document text
    • http://wadigajore.22web.org/death_note_series_netflix_cast.pdfIn PDF document text
    • http://ramedefinu.getenjoyment.net/diligiz.pdfIn PDF document text
    • https://cdn.sqhk.co/kubibosujiko/fcgZ7hd/turkish_march_sheet_music_piano.pdfIn PDF document text
    • http://vixegoxufareka.getenjoyment.net/dekabadezirajageduz.pdfIn PDF document text
    • https://cdn.sqhk.co/bevibubos/eBhfhec/arnold_bodybuilder_image.pdfIn PDF document text
    • http://wilitubejibo.iblogger.org/nalane.pdfIn PDF document text
    • https://cdn.sqhk.co/kubepugemaki/1bhizgj/jufur.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zesugipove.onlinewebshop.net/grade_12_biology_textbook_download.pdfIn PDF document text
    • http://pivimufe.atwebpages.com/what_is_the_best_medication_for_cellulitis.pdfIn PDF document text
    • http://talesezon.epizy.com/53199914414.pdfIn PDF document text
    • http://runuwug.myartsonline.com/what_are_good_transition_words_for_a_conclusion.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_off0000ebfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBFD 5472 bytes
SHA-256: 8dbaaf13d7a6c3a5c708573c704139a93c5e4ad9a0836716a348ad9de2ffa3f8
font_01_sfnt_off0000fe8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE8E 11996 bytes
SHA-256: 7e5c660be631ccc7a48898e0cc437c4725ed4cab6cfaacb2e45454f933e22263

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