Malicious PDF — malware analysis report

Static analysis result for SHA-256 9193ba0ff6c09c57…

MALICIOUS

PDF

54.7 KB Created: 2020-11-05 06:05:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: e2462a897db3a275fcfd12cc58e9e0e2 SHA-1: bb62a875daa4bfb61be7d523e80196e9e2328418 SHA-256: 9193ba0ff6c09c5798582869b16dd4560e3230158a6cc2763c840d6e752a11a7
174 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. It uses a callback-phone (TOAD) lure. The file embeds a large number of external links characteristic of an SEO link farm and routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/strik?keyword=fraud+examiners+manual+2016+pdf In PDF document text
    • https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/mitadit.pdfIn PDF document text
    • https://zozelezike.weebly.com/uploads/1/3/4/4/134434207/acc5f21f9d.pdfIn PDF document text
    • https://mupibidegupek.weebly.com/uploads/1/3/0/8/130874042/8130356.pdfIn PDF document text
    • https://zulewawasukuxu.weebly.com/uploads/1/3/4/5/134581955/lolukupefedegaxamam.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/wanasuvedigo/97887273579.pdfIn PDF document text
    • https://s3.amazonaws.com/piradi/81373956039.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/colonialism_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/words_that_begin_with_d.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/algebra_worksheet_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/gazupatuxabimukegovobe.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/resumen_libro_la_celestina.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/benefits_of_biochar.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/bewinefamoxusixiwalesava.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/social_networking_vocabulary.pdfIn PDF document text
    • https://s3.amazonaws.com/mozirolinitaje/xodesivekipex.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_off000091c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91C8 5688 bytes
SHA-256: 505c9b15c5b44031edb59ec787f139d0ec45b10c9a78fecdcef35c7d5e9aa2cf
font_01_sfnt_off0000a514.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA514 12804 bytes
SHA-256: ee9cdc5b4f0d6e13ac8a11c44859b4010598b41516406203ba7a270fb46c7d5c

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