Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fd9267592605df2…

MALICIOUS

PDF

68.9 KB Created: 2020-12-11 09:58:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 7486bd97b2f3fd8ce6dc8af508743494 SHA-1: 8c29a3824ed29d37401e6717d562def02ed18246 SHA-256: 0fd9267592605df2718c5a7506a50a0f693e8e8cf77c197a9357d78018e3a7d9
214 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document contains numerous embedded links, with one identified as a known malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting an attempt to direct users to potentially harmful websites for phishing or malware distribution. The ML classifier and ClamAV detection further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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/strik?utm_term=fender+resonator+guitar+fr50 In PDF document text
    • https://domilejoxu.weebly.com/uploads/1/3/4/5/134529458/magutajeb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369333/normal_5f8c3e22ecc54.pdfIn PDF document text
    • https://levibezime.weebly.com/uploads/1/3/3/9/133986639/pisupajidasaguxa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368970/normal_5f87adcf32df6.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://uploads.strikinglycdn.com/files/02e6c9b0-87ac-40e7-8f5a-89d75c765a12/the_crucible_quote_analysis_act_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43d5c1d0-0e8a-4a64-9776-6b575f624af2/6116753748.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c66b27a199023ab4af32/t/5fc1a70a145a8629dceef4de/1606526730999/23201367544.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f20716e2-e559-408f-83dc-62d9a66e3f0e/trapped_in_the_mirror_free.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce114b4e85dd6b25158785/t/5fcf6b5d68c18617d411cd80/1607428958000/8122363022.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a5d4f9e-1dd2-4e1d-942a-5d8ec83be6cb/dr_caroline_leaf_books_free_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc112a36609fd0ee7924cd4/t/5fce2418eb18547f4bad2ab7/1607345176963/83990749784.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcfb4a1491241adc45935b/1606220619105/run_3_cheats.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c1f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1F9 5144 bytes
SHA-256: 6fe41f7643316b1a076dad1240aa5077cc5474c4c13de9dde6b51703fb257e99
font_01_sfnt_off0000d389.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD389 10888 bytes
SHA-256: 62779ca34446f14c578ace8d09eef68756bb02bacd5673765bff4bcd1e6035ee
font_02_sfnt_off0000f8be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8BE 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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