Malicious PDF — malware analysis report

Static analysis result for SHA-256 b01835d8b6548aaf…

MALICIOUS

PDF

81.1 KB Created: 2021-01-04 10:48:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: ea0f67767266718093c053c0cf5b0162 SHA-1: e0f6e1a3ce1799a4362c695fb2032bbc22062285 SHA-256: b01835d8b6548aaf2b30c898143fd0430cbdbc2ad97850f839a88f44232e225c
164 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous external links, with one specifically pointing to a URL associated with a payment plan lure. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of embedded links and the 'Fake invoice / payment lure' heuristic suggest the document is designed to trick users into clicking malicious URLs, likely for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://trafficel.ru/123?utm_term=disney+premier+passport+payment+plan PDF link annotation
    • https://cdn.sqhk.co/jasowipe/souihje/lagitizasajagelokepige.pdfIn PDF document text
    • https://cdn.sqhk.co/vivupedasez/mjgbjgq/81359396802.pdfIn PDF document text
    • https://vakenufepuxino.weebly.com/uploads/1/3/4/5/134529081/vizasonami-lazaxulakeduli.pdfIn PDF document text
    • https://ninozaji.weebly.com/uploads/1/3/4/6/134690112/wiwaw_nidok_midub.pdfIn PDF document text
    • https://pewarefat.weebly.com/uploads/1/3/4/3/134361746/jijubamavorax.pdfIn PDF document text
    • https://cdn.sqhk.co/pomorezolo/gihjcM6/doors_awakening_level_10.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/a5d02094-9c28-421a-9df9-07d46d499840/immune_system_worksheet_elementary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83ce2bd4-83c0-42bb-a8b3-cf6002e1cfbc/kelisijisoluriv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b0af89f-d484-44bd-99a2-9766f75523e9/gun_zombie_mod_apk_revdl.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/170733f8-9f2a-465f-9d51-a038645cdec8/vemofazorim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c7ca014-99db-4e03-8531-ac38b3417f12/saderusoxonilifubovobozi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4961bbd8-0fe9-4f6d-8fbd-244f575b6d37/connect_map_my_walk_to_apple_watch.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe14d729-c400-4ad8-90ee-e74408c358fb/34703988327.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_off0001005c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1005C 5064 bytes
SHA-256: 7c1358ebdbf837b8d5a3068f5c5b28cddcc4b48ae824acea4c762fcffc8752d7
font_01_sfnt_off00011188.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11188 11252 bytes
SHA-256: 1f3700bcb58e2557ca2a97e5293bb01a015ae01ea9a50d32234b87c44b65f0c6

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