Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc7f232a2d437fff…

MALICIOUS

PDF

73.1 KB Created: 2021-03-01 01:22:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 48f7d2cdcd27d2494abf37eaed396ca6 SHA-1: 2c37f132e7912931ec1235bf74c2b12cfd51c927 SHA-256: cc7f232a2d437fff3687164c37539092daca425c1120812c01daea7b8f39cea7
166 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The file was detected as a malicious PDF by ClamAV and an ML classifier, exhibiting characteristics of a payment redirection lure. It contains numerous external URIs, including one pointing to a link farm on disposable hosting, suggesting an attempt to redirect users to malicious sites. The heuristic 'SE_PAYMENT_REDIRECT_LURE' strongly indicates a phishing attempt related to financial information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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://resalured.ru/wix?keyword=othello+study+guide+questions PDF link annotation
    • https://cdn.sqhk.co/bapuwanuvadi/hcAiegg/mini_golf_cart_cricket.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464873/normal_603bfba9579a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374371/normal_602ef49a88b9d.pdfIn PDF document text
    • http://kavuxolabazili.iblogger.org/cover_letter_for_resume_word_template.pdfIn PDF document text
    • https://cdn.sqhk.co/nolagutotato/athfihK/ark_survival_evolved_review_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/zogameva/Xicwgfl/28801655966.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465935/normal_5ffde84436f63.pdfIn PDF document text
    • http://wavulefarunatev.iblogger.org/25742880160.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419437/normal_601dcce195086.pdfIn PDF document text
    • https://cdn.sqhk.co/winogolelog/fhighdl/new_commando_shooter_arena_mod_apk_unlimited_money.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vewamekigobuzuw.epizy.com/begamexezo.pdfIn PDF document text
    • http://tabumuxiwuno.rf.gd/wiwomufabesuzuzokakevatod.pdfIn PDF document text
    • http://sogivuwe.onlinewebshop.net/ion_max_lp_conversion_turntable_with_speakers_review.pdfIn PDF document text
    • http://vumopigaw.epizy.com/77636753497.pdfIn PDF document text
    • http://pusapovewazigu.onlinewebshop.net/pazese.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_off0000e1c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1C8 5036 bytes
SHA-256: 5700af707ce960424cc78029ac87e4bd0c32cf4caec23366986ee264c6b1206c
font_01_sfnt_off0000f2e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E5 10568 bytes
SHA-256: 792022ebebbff5d0663ee78ca424de6a18c20264f48fea8117b5a0396a0b5607

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