Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c029abcc5474840…

MALICIOUS

PDF

83.8 KB Created: 2021-03-20 18:37:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: ba71fdbfb3cdbe751e6f006527dcc49f SHA-1: 8ae2c48e29c3923884f323aeb3110603e91b9a0c SHA-256: 9c029abcc547484014a8a0070536bd94f8d72097d0aad14d7cfef2f04dfe6634
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 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/aws?utm_term=cook%2527s+illustrated+dry+brine+turkey PDF link annotation
    • https://cdn.sqhk.co/tisewesir/3N9ihHE/toy_truck_rally_2_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/xifusajexom/JeMjgqQ/cyberghost_vpn_free_full_version.pdfIn PDF document text
    • https://cdn.sqhk.co/gepibilis/WABggf1/tuduvijanonekufunage.pdfIn PDF document text
    • https://cdn.sqhk.co/jiluputumusi/LihhccO/tatesav.pdfIn PDF document text
    • https://cdn.sqhk.co/jenireni/ipHxe08/okta_stock_price_after_hours.pdfIn PDF document text
    • http://maxirem.mygamesonline.org/lidofedotak.pdfIn PDF document text
    • https://cdn.sqhk.co/mosepoxik/NWQjfhb/mubiseb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6151feb-989f-49d4-bb32-fd4e2565398d/low_carb_vegan_weight_loss_meal_plan.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/51540199808.pdfIn PDF document text
    • https://s3.amazonaws.com/kefodek/rebomizok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb238c6b-cbe5-4a19-9409-2c07ec7600ec/brain__behavior_an_introduction_to_behavioral_neuroscience_5th_edition_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7eac6b63-2984-4675-939f-eaf8db3358ca/lobetuleduni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a6b9ed3-cc52-4191-bb8e-504dce67fee7/57024066533.pdfIn PDF document text
    • https://f1fb087f-5d49-4061-aa02-230b108315d3.filesusr.com/ugd/645068_06c194d6174e45a581289358ea2cf653.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/roxelajas.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/naloxebu.pdfIn PDF document text
    • https://7f3356c1-ec1f-498a-9d41-5b36c14d87b7.filesusr.com/ugd/98d33d_856132c64a304f2ebb32e5a039331392.pdf?index=trueIn PDF document text
    • http://pogetowem.onlinewebshop.net/how_to_reset_motorola_xt1921-2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8372dc64-d543-4c78-9daf-6ad60f3dd2b0/butap.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f51f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF51F 5064 bytes
SHA-256: a1bd3088e2dbcfbe336cad0b3f0880fcb1300244462b6c53a366bf03cb8507b4
font_01_sfnt_off0001066f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1066F 10792 bytes
SHA-256: 3be1f9ceec4a93ee3705371ff1b4fc53dcb7405f80a7b3f165d027c238c238de
font_02_sfnt_off00012b7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B7A 16060 bytes
SHA-256: 2d97eb5b8c66583654a55461b75ebc9d5954fe3bb26bfbf5761d5bfdae6bb250

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