Malicious PDF — malware analysis report

Static analysis result for SHA-256 0118ddd6eb679293…

MALICIOUS

PDF

83.8 KB Created: 2021-03-19 22:16:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: e36dbf1944570fdaec49c687f979b4de SHA-1: 1007e4d5550f5153a979412080f3af9ff5306b00 SHA-256: 0118ddd6eb679293b26dec25de576a9ea9b4d28d0c186be321479758aafe517a
156 Risk Score

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. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://soxebez.ru/123?utm_term=best+car+tires+consumer+reports PDF link annotation
    • https://kitupiver.weebly.com/uploads/1/3/4/4/134446404/pofiluxineno.pdfIn PDF document text
    • https://jipoditewiwes.weebly.com/uploads/1/3/4/8/134875435/2439611.pdfIn PDF document text
    • https://tebeneka.weebly.com/uploads/1/3/0/8/130874559/begoboxob.pdfIn PDF document text
    • https://letogapebo.weebly.com/uploads/1/3/5/3/135320268/514574.pdfIn PDF document text
    • https://cdn.sqhk.co/lomasamube/JjavMO6/combo_quest_2_character_guide.pdfIn PDF document text
    • https://mafenipo.weebly.com/uploads/1/3/4/8/134879688/1396629.pdfIn PDF document text
    • https://cdn.sqhk.co/doginifa/jkXElgi/rolow.pdfIn PDF document text
    • https://biwomewiwuxe.weebly.com/uploads/1/3/4/1/134131409/nakegagu_xipisumu_katakaxix_fisetixijed.pdfIn PDF document text
    • https://lexikusu.weebly.com/uploads/1/3/1/4/131438729/e127dff32.pdfIn PDF document text
    • https://laverikiwife.weebly.com/uploads/1/3/4/5/134502667/ronitebasesaf.pdfIn PDF document text
    • https://vabijerokajesi.weebly.com/uploads/1/3/4/5/134595953/b8216f796c097.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/dazovosugev/major_depressive_disorder_guidelines_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/kugelilizibuwum/37278332245.pdfIn PDF document text
    • https://0e627107-309b-4451-a84d-e7064c41fccd.filesusr.com/ugd/04c368_a290a78f1ee141f3b7e2d5ca674379be.pdf?index=trueIn PDF document text
    • https://c4bedd8b-a3e9-4aa8-9751-a6fde4035b7e.filesusr.com/ugd/037f08_04f76dd5ba42482ba0736f53426b3eba.pdf?index=trueIn PDF document text
    • https://02ee9779-94d6-4ec7-959f-c0f99fe19a35.filesusr.com/ugd/cdc607_71401160ace940c1a73e26df9a96a1ad.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/remeranexe/club_car_golf_cart_charger_plug.pdfIn PDF document text
    • https://2c8134a4-d865-4da1-8961-c755d7242105.filesusr.com/ugd/6dcf04_af90570219784d0e8221090a77dfa514.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/1920675876.pdfIn PDF document text
    • https://s3.amazonaws.com/pasutiz/pololewuzafovopusov.pdfIn PDF document text
    • https://91953a53-6f32-4f2a-9b2e-0f954541ff31.filesusr.com/ugd/dad90e_00ec4ff479eb488d954c959291aaa1a1.pdf?index=trueIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010c0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C0B 5096 bytes
SHA-256: acbf2e814443dd2076b2a1526608afd26a4c960f0563fdac01f66475b435ee3b
font_01_sfnt_off00011d4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D4D 10696 bytes
SHA-256: 4f0bf17e3d40519491ec57f3b36735effe780e883c932cfd78fd6168347ba2ab

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