Malicious PDF — malware analysis report

Static analysis result for SHA-256 75480cab897d2c0e…

MALICIOUS

PDF

80.1 KB Created: 2021-02-28 23:01:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 4f577b05d629e7a9a5cfe19f486d478f SHA-1: a70bcb3196c2175481dabb3d03705f1b70689e3f SHA-256: 75480cab897d2c0e9157f2658a161842f88c509fc8124ed533ce31ac69b41fc0
126 Risk Score

Malware Insights

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

The PDF contains multiple external URIs, with one specifically pointing to a URL that appears to be a phishing lure disguised as a religious text. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to a phishing site or download further malware. No scripts were extracted, but the presence of numerous links and the ML detection suggest a phishing or credential harvesting attempt.

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://xezojetit.ru/strik?utm_term=new+testament+in+hebrew+with+english+translation PDF link annotation
    • http://zabidegelid.iblogger.org/android_one_moto_x4_battery_replacement.pdfIn PDF document text
    • https://cdn.sqhk.co/tororukiwuri/ifgdjcp/lumberjack_attack_idle_games.pdfIn PDF document text
    • https://cdn.sqhk.co/molodomo/ShzhafR/history_of_africa_kevin_shillington_ebook.pdfIn PDF document text
    • http://tolofat.22web.org/83535678975.pdfIn PDF document text
    • https://cdn.sqhk.co/vomikigiw/M68nXhe/quotes_coloring_pages_for_adults_to_print.pdfIn PDF document text
    • https://cdn.sqhk.co/bifoligi/iiLpvhj/las_vegas_casino_games_free.pdfIn PDF document text
    • http://tisawij.iblogger.org/59261355136.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://monudoxufanexax.rf.gd/zirijolazefasuwudimebanej.pdfIn PDF document text
    • https://s3.amazonaws.com/vavale/uc_browser_for_java_7._0.pdfIn PDF document text
    • http://sawunalomagoda.epizy.com/89491462971.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/kasomavalafek.pdfIn PDF document text
    • http://nufewusuk.rf.gd/safixiduxetavukom.pdfIn PDF document text
    • http://puwolir.epizy.com/fipewasulatikeramunugija.pdfIn PDF document text
    • http://sujemitusosida.epizy.com/bushwalking_ielts_reading_answers.pdfIn PDF document text
    • http://kukofowas.rf.gd/blankets_graphic_novel.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_off0000ee4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE4A 5088 bytes
SHA-256: 41c17ce6a450093959967d93bff3a75b9a770d908768fa5151781e1c5f11f6f0
font_01_sfnt_off0000ff6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF6E 10916 bytes
SHA-256: 574b438a1277cc0efbec4acd4fbb45ee4f335a933d44c3c120009ea567665f3c
font_02_sfnt_off0001247f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1247F 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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