Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e0dec0930007658…

MALICIOUS

PDF

71.7 KB Created: 2021-04-18 17:34:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: b088bccd986acd2c3f25443d88723195 SHA-1: 3798040ec9781f96e40b2058651b3a745eeeffc8 SHA-256: 8e0dec093000765878677613ddc66693278d1ebd211b7d9981129436f4d78ad5
156 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 as malicious by a ML classifier and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, many of which point to PDF files hosted on free web hosting services, suggesting a link farm or redirection mechanism. The primary external URI, https://xezojetit.ru/strik, is likely part of a phishing or malware distribution chain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://xezojetit.ru/strik?utm_term=money+purchase+annual+allowance+carry+forward PDF link annotation
    • https://tadeliganunuzax.weebly.com/uploads/1/3/0/9/130969808/9978b90e49eed.pdfIn PDF document text
    • http://aicberg.net/38345492137ckopa.pdfIn PDF document text
    • http://zzzmmmmejjj.space/3729105475hz2dm.pdfIn PDF document text
    • http://1freedom.space/31900765886c7s2h.pdfIn PDF document text
    • http://magnifioco.site/kaxebevunufowoxananagode2b1jp.pdfIn PDF document text
    • http://vovpomnim.ru/el_monje_que_vendio_su_ferrari_diapositivasmb4kw.pdfIn PDF document text
    • https://rosowimibezot.weebly.com/uploads/1/3/5/3/135392622/6231814.pdfIn PDF document text
    • https://tevukebejesa.weebly.com/uploads/1/3/2/6/132695492/botapebekuwat.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://josusasufuni.epizy.com/67261292497.pdfIn PDF document text
    • http://tugupora.epizy.com/30571032392.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1502fb1-965b-4bdd-95ba-e2e7df13e6b8/setokepe.pdfIn PDF document text
    • https://s3.amazonaws.com/peveziwoguxuzam/jumbled_sentences_worksheet_for_class_7.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28349274-d1f4-4991-be1f-a19cbb6b6e81/el_coronel_no_tiene_quien_le_escriba_audiolibro_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/gavexilatuvitaz/play_caesar_3_on_android.pdfIn PDF document text
    • http://zijemuviwovo.rf.gd/49704621188.pdfIn PDF document text
    • http://naziniri.epizy.com/jbl_boombox_mini_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/luborinizu/wisugukiludowavo.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/47341012604.pdfIn PDF document text
    • http://limibulat.epizy.com/19377686712.pdfIn PDF document text
    • https://s3.amazonaws.com/tutasujal/color_wheel_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jinotugiwomo/coordinate_geometry_grade_8_worksheets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/337501e7-8754-4f25-bc50-0125425589d3/how_many_carry_on_bags_for_american_airlines.pdfIn PDF document text
    • https://s3.amazonaws.com/dogevazapiwediw/weber_spirit_210_310_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/devuxuzejozam/letterhead_free_template_psd.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB3C 5440 bytes
SHA-256: 50fe1d2b6a09d4628d4237e95b7a09312722da74406e67f7dfcdef51473c63bc
font_01_sfnt_off0000eddd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDDD 10404 bytes
SHA-256: 7c687c92507689193041248315e6c4c8e1c547efd5f769c3c98cf45c84a5a6a9

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