Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9a1cd80615c87ec…

MALICIOUS

PDF

62.7 KB Created: 2021-01-04 08:14:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: d2217b93d0f1d255a8105311fd15db7a SHA-1: ec718e88c7d320094a437fd22cd63af1b74a110a SHA-256: d9a1cd80615c87ec1e14540c60cc98248b1fdc408e60a12b132c7dd2a12c6adc
214 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a malicious domain, identified by heuristics as a malicious redirector and part of a link farm. The embedded content, though obfuscated, suggests a lure related to a product manual. The presence of numerous external PDF links further indicates a phishing or malicious redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ggtraff.ru/123?utm_term=motorola+mbp854+manual+portugues In PDF document text
    • https://cdn-cms.f-static.net/uploads/4409628/normal_5f95eb251cb4b.pdfIn PDF document text
    • https://cdn.sqhk.co/kufusivekogo/h1gjhQ0/race_io_mod_apk_unlimited_money_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369524/normal_5f8808812649a.pdfIn PDF document text
    • https://cdn.sqhk.co/bedogipaxog/2jj11Ji/gapuraliwebikig.pdfIn PDF document text
    • https://sepubipig.weebly.com/uploads/1/3/4/4/134445985/foxivedir-mezawomuseziv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445749/normal_5fbc0b974be65.pdfIn PDF document text
    • https://cdn.sqhk.co/romemanir/hifvhex/22664779587.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419205/normal_5f99bcab32dd5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e432abc-6730-4ed5-ab42-dfb895c079f4/haru_fruits_basket_age.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a2ea92e-b4b2-4590-9ca8-263a2a18e9fb/nugisururoxixinamo.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_off0000b924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB924 5688 bytes
SHA-256: 20cf406bd97094956162436ba012d4b34ad83d485f314dbc093da21551c8b9ae
font_01_sfnt_off0000cc75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC75 9976 bytes
SHA-256: 885a50852ae7181e03fc8083b70c3b3d6176c24ef1152cfce6bebdf6d601515b

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