Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfc92f0c7b6c6c26…

MALICIOUS

PDF

70.9 KB Created: 2020-11-27 23:20:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 3654f8ff6b48a915c7dc0a71eef9214a SHA-1: dc07a64012fe7cbc8266d9640f041c21a6794fde SHA-256: bfc92f0c7b6c6c265a42731988192df0c14e7d763aedc60d0e65c9a204486ebb
214 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains multiple embedded links, with at least one pointing to known malicious redirector infrastructure. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and the ClamAV detection 'Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0' strongly indicate a phishing or malware distribution attempt. The presence of numerous external PDF links also suggests a link farm, potentially for SEO manipulation or to host further malicious content.

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://gettraff.ru/123?utm_term=7.1+ions+answers In PDF document text
    • https://wetuwisiw.weebly.com/uploads/1/3/4/4/134495793/japutugusix.pdfIn PDF document text
    • https://talapilodegopez.weebly.com/uploads/1/3/0/9/130969507/4684087.pdfIn PDF document text
    • https://xexonukomamub.weebly.com/uploads/1/3/4/3/134353621/68177e917fceca4.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/vobuturinivi/laguk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ccaf2fc-f0f8-45e5-a7ba-95d4230b45aa/3398869537.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48de129a-d2ff-48dc-a795-09459d605871/lifetijenifababixeruxix.pdfIn PDF document text
    • https://s3.amazonaws.com/xedewofuretujo/the_burn_tanking_guide_ffxiv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d336c6f8-7a2a-45db-a539-753defd28213/petovidonofopalanigu.pdfIn PDF document text
    • https://s3.amazonaws.com/vatakefojunib/formation_conducteur_de_bus_avec_pole_emploi.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/60081153516.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f059a7d-c329-45db-b2c1-87c05474cc4d/sevefituwuvut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5be8cbd-a594-4bb5-b3ea-0bed6d09cf77/tolaso.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/lightroom_presets_torrent_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/donukadizolin/a_twitter_video.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_off0000cc70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC70 4516 bytes
SHA-256: dc8e0bf88833a7d52b00a5bb40ab67de841ceeaa3a8c05026f431bbdb1bc71aa
font_01_sfnt_off0000dbd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBD7 10600 bytes
SHA-256: cf5b28c31b81668965846571873a80eba36d4056deb5b578b7fad592b6c8d897
font_02_sfnt_off00010036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10036 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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