Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e0f870ce835ab2c…

MALICIOUS

PDF

73.6 KB Created: 2021-02-21 14:49:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: bbfee80bf251fb88962ec5773f703d8c SHA-1: cf749efe549cdec3e3ec3f0921fe2833f59830c6 SHA-256: 0e0f870ce835ab2cf530a9af19d6f988749e4972ef180fb0e7509ae761d437ab
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by multiple heuristics, including ML and ClamAV, as malicious. It contains numerous embedded URLs pointing to potentially malicious domains, suggesting it acts as a lure to external sites. The presence of external URIs and link farm characteristics indicates an attempt to redirect users to phishing or malware hosting sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/strik?utm_term=ma+driver%2527s+test+study+guide PDF link annotation
    • http://topsalon.xyz/proshop_led_par_64_manualr6nq7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383170/normal_603203eb15852.pdfIn PDF document text
    • http://playmarket-online.com/purple_butterfly_images_freeu888j.pdfIn PDF document text
    • http://grenkasalo4.xyz/chattanooga_hydrocollator_m-2_parts59l72.pdfIn PDF document text
    • https://cdn.sqhk.co/nosamese/ijJjOhj/bosasudeluxutana.pdfIn PDF document text
    • http://kompledom.com/shutter_speed_guide_cameradasux.pdfIn PDF document text
    • https://cdn.sqhk.co/puwukuwos/ifQgcKx/16679896751.pdfIn PDF document text
    • https://cdn.sqhk.co/bibikodazit/jeYIotW/7646892376.pdfIn PDF document text
    • https://cdn.sqhk.co/tixelila/kmwgflt/83190249758.pdfIn PDF document text
    • http://makeyourself.xyz/45189407853ejrwn.pdfIn PDF document text
    • https://cdn.sqhk.co/zajujinul/ajjthcg/sandisk_memory_zone_para_pc.pdfIn PDF document text
    • http://gekalam.22web.org/wubimukubasuvifefemupix.pdfIn PDF document text
    • http://mishgen.com/suvewomizeroo8i50.pdfIn PDF document text
    • https://cdn.sqhk.co/vefusujix/gh3ghhi/lajizumafumurafobelon.pdfIn PDF document text
    • http://moitender.org/jutavulumobuzimepagigobsw4yr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482645/normal_6026df7a67ff2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tivekanudoz.rf.gd/chitragupta_maharaj_ki_photo.pdfIn PDF document text
    • http://wojepofikisad.rf.gd/how_to_use_thinkorswim_scanner_for_day_trading.pdfIn PDF document text
    • http://besevinoferoza.epizy.com/13906512535.pdfIn PDF document text
    • http://wusepobokajed.rf.gd/64011375801.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_off0000e06b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE06B 5164 bytes
SHA-256: e2c527942b4551a4c9216b5b12b5fcf8de06b1d58015f7a800ef06c5f56385d2
font_01_sfnt_off0000f22a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF22A 11396 bytes
SHA-256: ea4cc3735c85cfb3d63da32c3cda2eba1f5932ed0b4959c03ddf021235325eb8

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