Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6a264564b07361d…

MALICIOUS

PDF

83.4 KB Created: 2021-01-17 13:10:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: b0b5ef9a75e1fd51cef73c9daf59e6d1 SHA-1: 02880c4c4a550017f36a14d59528c2f771a92ec2 SHA-256: d6a264564b07361dfc44f2cecc0890995309d8f6c0e52074f77861cfec23e35a
214 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. 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 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
  • 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/aws?utm_term=alfa+romeo+brera+3.+2+v6+performance In PDF document text
    • https://site-1172210.mozfiles.com/files/1172210/cherry_blossom_clipart_vector.pdfIn PDF document text
    • https://site-1177946.mozfiles.com/files/1177946/dovizerefazezuxa.pdfIn PDF document text
    • https://zuxibonidape.weebly.com/uploads/1/3/4/8/134889984/b0f0e3ce58a7.pdfIn PDF document text
    • https://dudezixibuwido.weebly.com/uploads/1/3/4/5/134529197/3723061.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446259/normal_5f9f7ffcab8e7.pdfIn PDF document text
    • https://site-1178842.mozfiles.com/files/1178842/gokoxokokurafita.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369775/normal_5fb325b8c29ca.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370284/normal_5ff6ad0771588.pdfIn PDF document text
    • https://supavutoni.weebly.com/uploads/1/3/4/7/134713891/gogewotota-raxipami.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://s3.amazonaws.com/woneketelak/bedufegig.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/alaine_love_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/jilemajo.pdfIn PDF document text
    • https://s3.amazonaws.com/fajixe/belimbing_wuluh_sebagai_antibakteri.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/carlos_drummond_de_andrade_amar_se_aprende_amando.pdfIn PDF document text
    • https://s3.amazonaws.com/wajufifenoxuj/76044501472.pdfIn PDF document text
    • https://s3.amazonaws.com/biwuwukesazef/gixisarefaresenipu.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/musica_gratis_per_iphone.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_off0000f922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF922 5312 bytes
SHA-256: 87f6945e0a2279021a1f2dce1ee2af64772b86d7cc94c4e1530d85d44900209c
font_01_sfnt_off00010b14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B14 11532 bytes
SHA-256: 3c050e22b7d6018c59d9eadde90da3d0ed915e77616546ab9b28d4b32edfac93
font_02_sfnt_off0001324f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1324F 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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