Malicious PDF — malware analysis report

Static analysis result for SHA-256 d896a2681cd42ac7…

MALICIOUS

PDF

79.2 KB Created: 2021-03-25 01:19:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 7fdb59cd313d5cf62f22015c4a69e94d SHA-1: 7eee9d8ebb6dda80298b98247c40f548f2830bb2 SHA-256: d896a2681cd42ac7c5039ace3ce1a5b7f03706f26b44de8bd9bb1ed04bebf242
196 Risk Score

Malware Insights

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

The PDF contains numerous external links, many of which are SEO-optimized to appear as legitimate search results or downloadables. One prominent URL, 'https://bologen.ru/wix?keyword=alex+rider+snakehead+pdf+weebly', is identified as a redirector. ClamAV detection and ML classification strongly indicate malicious intent, likely phishing or malware distribution. No scripts were extracted, but the structure suggests a link farm designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://bologen.ru/wix?keyword=alex+rider+snakehead+pdf+weebly PDF link annotation
    • https://jedexapotup.weebly.com/uploads/1/3/4/4/134472831/e65f4d77c5cdd.pdfIn PDF document text
    • https://rorezumi.weebly.com/uploads/1/3/4/5/134591247/mawivofubuditulas.pdfIn PDF document text
    • https://guvefivilemu.weebly.com/uploads/1/3/4/3/134397682/gabedigiv_betop.pdfIn PDF document text
    • https://xunopigiwigon.weebly.com/uploads/1/3/1/6/131636761/duxalutigawikiwa.pdfIn PDF document text
    • https://zutuvibob.weebly.com/uploads/1/3/1/4/131407898/ragilufonakamoba.pdfIn PDF document text
    • https://bitusuverutito.weebly.com/uploads/1/3/1/8/131871453/zenafewesa.pdfIn PDF document text
    • https://fekebejoluxoji.weebly.com/uploads/1/3/4/3/134309121/9802b3.pdfIn PDF document text
    • https://bevalapiwilidi.weebly.com/uploads/1/3/4/5/134587476/xifavetefid-mexipal.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://geforagegi.atwebpages.com/volare_chords.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/assetto_corsa_bahrain_track.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/92488189718.pdfIn PDF document text
    • https://s3.amazonaws.com/dobikasukavu/pradhanmantri_ayushman_yojna_online_form.pdfIn PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/nupewipemunemirati.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/digital_design_and_computer_architecture_harris.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/40481067861.pdfIn PDF document text
    • http://nujebij.onlinewebshop.net/marketing_plan_contents.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/25875361630.pdfIn PDF document text
    • https://s3.amazonaws.com/voxazedisula/39055245739.pdfIn PDF document text
    • https://s3.amazonaws.com/megujobemegor/witojuwolud.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/najugamaf.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f858.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF858 5584 bytes
SHA-256: 98030ec3f8768a39197dc57ff067ebe166adb96d412e901f7b8ff8769f863e43
font_01_sfnt_off00010b65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B65 10596 bytes
SHA-256: d1169dcaff52a7f7d2e7ce287a1bfeadac7cfaabb28ef7712eaf581481325d80

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