Malicious PDF — malware analysis report

Static analysis result for SHA-256 578b12df89aadab0…

MALICIOUS

PDF

39.3 KB Created: 2020-10-30 05:32:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: be18f4a9375edefa63d09154b89b53fd SHA-1: 358bc62310d0bf900b089018e483b0feae0207d2 SHA-256: 578b12df89aadab0a2a6ccb5bf03ca4f44a417ab197b07cf975443f36d2d8c41
154 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, including one pointing to known malicious redirector infrastructure. The document body, though partially obfuscated, contains text related to 'Autopage car alarm manual' and a URL that appears to be part of a link farm. The presence of multiple links and the redirection to a suspicious URL strongly suggest an attempt to lure users to malicious sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://gettraff.ru/strik?keyword=autopage+car+alarm+manual In PDF document text
    • https://gogebuzavoriro.weebly.com/uploads/1/3/2/6/132681212/nadisuzunogafateweb.pdfIn PDF document text
    • https://fitaveseraf.weebly.com/uploads/1/3/4/4/134448243/18281be.pdfIn PDF document text
    • https://laxuruvu.weebly.com/uploads/1/3/1/4/131482832/717438.pdfIn PDF document text
    • https://natulawud.weebly.com/uploads/1/3/4/3/134309077/bb20e.pdfIn PDF document text
    • https://bezebaterizijir.weebly.com/uploads/1/3/1/3/131384714/zovuxalodibodi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0502/8354/4772/files/bubble_shooter_apk_free_download_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/7439/1709/files/qureka_pro_all_version_apk_download.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/zegezimorotof.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/72799608469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5591/2862/files/11429622867.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/free_printable_bowling_certificate_templates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7582/2278/files/wizuzakimagiloleviliw.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F68 4896 bytes
SHA-256: adcb635bd7bc4444695ac5531e76f679cc53087a69f24c263121a2ffe1f32060
font_01_sfnt_off00005ff8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF8 10128 bytes
SHA-256: 1c2f4264e5c958c227f2f184ef704a2e960ebb452ce54ce366724cd7fe5b007c
font_02_sfnt_off00008274.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8274 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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