Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e02e24310a5f433…

MALICIOUS

PDF

80.6 KB Created: 2021-04-27 04:50:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 9e885d2030afae28503ece72b701942c SHA-1: 8239257033829f12971bbad65cd013d6b543eae1 SHA-256: 2e02e24310a5f433c839c0ee6d03958dd9fa52a7a7103fe36237e184363b0ac0
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic, suggesting an attempt to manipulate search engine results or redirect users to malicious sites. The ClamAV detection and ML classifier also strongly indicate malicious intent, specifically phishing. The embedded URLs point to suspicious domains, likely serving as part of a phishing or SEO spam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jottigo.ru/strik?utm_term=cuisinart+bread+maker+cbk-200+bread+pan PDF link annotation
    • https://cdn.sqhk.co/pikikunifav/ahiajdd/kemuxisituvisarib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494875/normal_60110baa6de25.pdfIn PDF document text
    • https://lamononokavaf.weebly.com/uploads/1/3/4/8/134878444/zisufesepurefidijadu.pdfIn PDF document text
    • https://cdn.sqhk.co/dijabidasu/cdia0jj/tusegarisowix.pdfIn PDF document text
    • https://cdn.sqhk.co/susiwebuvowo/j7Tpdhh/rfs_real_flight_simulator_apkpure.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367000/normal_606da52edff61.pdfIn PDF document text
    • https://cdn.sqhk.co/nisosawero/sAhcjgw/chris_brown_with_you_mp4_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375204/normal_60116e5f6fcc9.pdfIn PDF document text
    • https://kupikonawu.weebly.com/uploads/1/3/4/8/134882044/6637141.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/lumixi/are_data_analytics_bootcamps_worth_it.pdfIn PDF document text
    • https://s3.amazonaws.com/xoferuzu/sony_bravia_32_inch_led_tv_stand.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/pumop.pdfIn PDF document text
    • https://s3.amazonaws.com/lowebemuwojiso/15567616459.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/modelos_de_inventarios_determinsticos_y_estocsticos.pdfIn PDF document text
    • https://s3.amazonaws.com/jamuluvuvava/what_is_the_major_task_of_philosophy.pdfIn PDF document text
    • https://s3.amazonaws.com/bolovopizonuki/78474328374.pdfIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/england_league_two_table_standings_and_form.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/how_to_use_digital_multimeter_test_diode.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/pelubuvak.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/snacks_recipe_book.pdfIn PDF document text
    • https://s3.amazonaws.com/jujadodedaruxix/fannie_mae_guidelines_gift_donor.pdfIn PDF document text
    • https://s3.amazonaws.com/nawuvud/sedadanetun.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/art_ideas_for_bedroom_walls.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000faa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAA4 5600 bytes
SHA-256: 7a3881ea141480ec43ff0ebe0fe0d7f188c3074a75277dfc852d14397bbc69f9
font_01_sfnt_off00010d9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D9C 11596 bytes
SHA-256: 6a78bca1e0044b2ec6beb4d03acb06ebb9b55765b39e6511fee898473f9bf8d7

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