Malicious PDF — malware analysis report

Static analysis result for SHA-256 97d1cdc8a66ce637…

MALICIOUS

PDF

65.4 KB Created: 2021-03-15 00:16:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: c4c6a35e8a9e4645434c5d924a39eb7a SHA-1: 5dfedd1ba8e05489e44734d967742c7612c78a13 SHA-256: 97d1cdc8a66ce637f3fc61170cf2061fbe56a4304ca8a7d3c1ff135d896dd0c8
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution 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. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7019

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://jottigo.ru/award?keyword=ib+business+management+guide+pdf PDF link annotation
    • http://kixiwogazu.sportsontheweb.net/star_wars_the_old_republic_wiki_races.pdfIn PDF document text
    • http://lulopoboxefon.scienceontheweb.net/pokaseduxafubarapawa.pdfIn PDF document text
    • http://punejew.mygamesonline.org/the_lathe_of_heaven_synopsis.pdfIn PDF document text
    • http://lodomujimujug.mywebcommunity.org/how_to_use_a_dishwasher_frigidaire.pdfIn PDF document text
    • http://maxirem.mygamesonline.org/xadanusiduva.pdfIn PDF document text
    • http://tufuwavaziga.mygamesonline.org/lumalirudaje.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/gizonukorad/mefajifuxe.pdfIn PDF document text
    • http://rexefobixavater.myartsonline.com/rational_emotive_behavior_therapy_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fdca3cc-5774-4eff-84ed-7fd7306fb47b/96427150477.pdfIn PDF document text
    • http://tonavisuma.onlinewebshop.net/centrifugal_pump_design_tuzson.pdfIn PDF document text
    • https://s3.amazonaws.com/bulujono/video_converter_online_to_mp4.pdfIn PDF document text
    • https://a54de82d-0003-4787-801b-d7ee719c780a.filesusr.com/ugd/8d57bd_615acb4b9c9048dab2c4b950dd5abdf0.pdf?index=trueIn PDF document text
    • https://3df06c22-1e8a-4082-8cc2-a0fdc0609706.filesusr.com/ugd/d86e81_a55f21bbfc864b5b8140cebb11fa7d3e.pdf?index=trueIn PDF document text
    • https://97a45c9e-1ab5-462a-bfe2-fded34b9a8b9.filesusr.com/ugd/b50c55_f0f13177ef774b85a278f3eb1c1b57af.pdf?index=trueIn PDF document text
    • http://kojuvurapamox.myartsonline.com/2481471753.pdfIn PDF document text
    • http://xekabotiwuker.atwebpages.com/pajujewudimote.pdfIn PDF document text
    • https://92ddf5cc-4ce7-4caf-b117-8241c553a727.filesusr.com/ugd/42bae0_0c91a266d46b40bd808e9eb4ad9210c1.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/takayasu_arteritis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0662efec-5122-4a0d-b707-cfa357c5b575/rugalumowa.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/gunojaxexepotetomaboj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13e32b90-0c48-484e-af87-95f42d0b6b13/nosiwezukobazagibo.pdfIn PDF document text
    • http://bumurulepowele.myartsonline.com/ziwalebemepuwujewatofot.pdfIn PDF document text
    • https://s3.amazonaws.com/rudelazifizuvo/synonym_dictionary_oxford.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f5f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5F5 5312 bytes
SHA-256: 358818ddccf817b801e274e61169cf76cf6702161dbaf3766df7eda3a04ee43a

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