Malicious PDF — malware analysis report

Static analysis result for SHA-256 955f7200e987dbdb…

MALICIOUS

PDF

67.9 KB Created: 2020-12-22 11:09:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: de210e364b716ae891ab70570744dcff SHA-1: 977c305f6312aa63fd667f27da1250506cd9f485 SHA-256: 955f7200e987dbdb0895f68af8c93446d90c78e1c9ee76725dfb11d5e2ac429e
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file contains a large number of external links, a technique often used in SEO poisoning or link farm attacks to drive traffic to malicious sites. The primary URL points to a site offering 'wildscapes mod apk unlimited stars', suggesting a lure for potentially unwanted or malicious software. The presence of a PDF link farm heuristic further supports this malicious intent.

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
  • 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://trafficel.ru/strik?utm_term=wildscapes+mod+apk+unlimited+stars PDF link annotation
    • https://sefusozikoju.weebly.com/uploads/1/3/4/3/134366316/7490de3c.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/roxawo/bamafilapepugu.pdfIn PDF document text
    • https://s3.amazonaws.com/xelimewat/sales_onboarding_plan_template.pdfIn PDF document text
    • https://s3.amazonaws.com/palevijuj/flash_banner_maker_free_with_crack.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/sovesivedapatusutelowasu.pdfIn PDF document text
    • https://s3.amazonaws.com/bejideba/calorimetry_pogil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bbe94aa-c66e-4831-aa97-5f7f09669abf/nevep.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e08512facd59ceacd9cd/t/5fc31fef3f75b166433ad488/1606623217384/drastic_full_apk_2018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6a34236-4749-47ba-91dc-bab668f24496/64320689113.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4c6e6b5-4d41-4e97-ae17-86674318c590/68600545349.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b77ea3bc-7ef3-4cbd-812b-c49ff03c7342/witch_doctor_costume_womens.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc66e003dfdd95b60fb07ab/t/5fce6774eb18547f4bb99a8a/1607362421409/didier_drogba_net_worth.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_off0000cbe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBE4 5296 bytes
SHA-256: c41f8f09c17af3d04dbb227fa3c0613a9f8a736f6c586844c261950a69425410
font_01_sfnt_off0000dddf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDDF 10736 bytes
SHA-256: e43672e20d2edfe14f37c1e00b50b0e32ccd2ab68f6d6a87643efe22f76712d0

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