Malicious PDF — malware analysis report

Static analysis result for SHA-256 48f2dd579c538ddc…

MALICIOUS

PDF

82.1 KB Created: 2021-05-02 16:09:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 563720b84f691147772236c4be998f44 SHA-1: b11b21c4e8ab6362a137155fd587e5262fe00fb6 SHA-256: 48f2dd579c538ddcf489a9e8ada3deb532335fc91994757680fb1b76c381c381
156 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. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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/strik?utm_term=how+to+program+rca+universal+remote+with+vizio PDF link annotation
    • https://bigifami.weebly.com/uploads/1/3/1/4/131407708/8829390.pdfIn PDF document text
    • http://useraisins.pro/how_to_tell_the_difference_between_gopro_hero_3_black_and_silverffybh.pdfIn PDF document text
    • https://binigikuvoloxog.weebly.com/uploads/1/3/5/3/135332024/fofepujajagafusuzeza.pdfIn PDF document text
    • http://pogatodarejo.iblogger.org/what_medications_are_illegal_in_singapore.pdfIn PDF document text
    • https://xadebunurag.weebly.com/uploads/1/3/1/4/131454816/kifometimuxoja_mexonopazoxuwuk_ruwebar_xanapekur.pdfIn PDF document text
    • http://wow50.pro/dog_care_merit_badge_book39imu.pdfIn PDF document text
    • https://mowerezudajam.weebly.com/uploads/1/3/5/9/135966589/sokik.pdfIn PDF document text
    • https://xazovobarobek.weebly.com/uploads/1/3/4/4/134403102/144384.pdfIn PDF document text
    • http://ximikilanad.22web.org/32294537836.pdfIn PDF document text
    • http://activa-fb.com/bogefumarp9xid.pdfIn PDF document text
    • http://dombitarf.ru/applied_numerical_analysis_7th_edition_solutions_free_downloadzbg33.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
    • http://kusodofezakata.rf.gd/78196858432.pdfIn PDF document text
    • https://s3.amazonaws.com/ximupuv/85563203260.pdfIn PDF document text
    • https://s3.amazonaws.com/tamovagag/8487979170.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/dreamweaver_software_for_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/bluetooth_free_for_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/duxabepivulolanozuxuxoko.pdfIn PDF document text
    • https://s3.amazonaws.com/regufojalojaza/operating_system_types_with_examples.pdfIn PDF document text
    • http://sebubexegan.rf.gd/47151108414.pdfIn PDF document text
    • http://kudekati.epizy.com/nowesalizuduxup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8f5fbd0-245a-4222-a5cd-fb3b567207ca/losizadafajakupabaduviso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ba77f04-b3a4-4e8b-827c-7298a59b9a08/asus_xonar_d2_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24a0b619-54ec-4199-9b84-abd04f725e16/mosor.pdfIn PDF document text
    • https://s3.amazonaws.com/kukazowox/79153890108.pdfIn PDF document text
    • https://s3.amazonaws.com/vajefam/74869762764.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_off0000f640.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF640 5392 bytes
SHA-256: 9049ae0f5dac84374485bab6d86caafba6d8b045a2b9b517a522fe9ae97cdea0
font_01_sfnt_off00010883.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10883 10468 bytes
SHA-256: 146de76097205445940b015203e77cb06a55881b17c6626a616df916222eb824
font_02_sfnt_off00012c58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C58 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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