Malicious PDF — malware analysis report

Static analysis result for SHA-256 993390db02897a01…

MALICIOUS

PDF

67.5 KB Created: 2021-01-17 18:00:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 374414fbed379d8e64d573b3a44d62d7 SHA-1: 4455d91daa7c8e277f483907d4de128af70a6feb SHA-256: 993390db02897a0104252a68d93c73d570589498874bc2f5c021a7d85d63bb99
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 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://traffking.ru/123?utm_term=thomas+johnson+middle+school+uniform PDF link annotation
    • https://site-1174888.mozfiles.com/files/1174888/9087442244.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379500/normal_5fe6b1994fe4c.pdfIn PDF document text
    • https://site-1168354.mozfiles.com/files/1168354/90725653936.pdfIn PDF document text
    • https://cdn.sqhk.co/nizekidido/eijxjag/92437147878.pdfIn PDF document text
    • https://cdn.sqhk.co/kexofodatop/jfTijif/hero_xpulse_200_price_in_guwahati.pdfIn PDF document text
    • https://site-1178468.mozfiles.com/files/1178468/callaway_preowned_coupon.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366055/normal_5f8706710b30b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365646/normal_5f88a7c485b60.pdfIn PDF document text
    • https://site-1173611.mozfiles.com/files/1173611/64551506369.pdfIn PDF document text
    • https://site-1252272.mozfiles.com/files/1252272/faux_leather_fabric_sheets_uk.pdfIn PDF document text
    • https://site-1175605.mozfiles.com/files/1175605/20008264016.pdfIn PDF document text
    • https://site-1173140.mozfiles.com/files/1173140/44347779864.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393193/normal_5f9bad3a3f2f6.pdfIn PDF document text
    • https://site-1174433.mozfiles.com/files/1174433/amazon_fire_tv_stick_lite_jailbreak.pdfIn PDF document text
    • https://cdn.sqhk.co/boxokozofe/idYjcgh/poker_mixed_games_strategy.pdfIn PDF document text
    • https://cdn.sqhk.co/jakufomego/geXhjjh/final_fantasy_legend_ii_maps.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384046/normal_5f9b3bce089d5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://megutid.epizy.com/88437093077.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/torodatanopalusumixumevix.pdfIn PDF document text
    • http://zurabogefu.rf.gd/fanuc_arc_mate_100ib_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/excel_vba_worksheetfunction_match_multiple_criteria.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/angular_formgroupname_ngfor.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_off0000cbc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBC6 5288 bytes
SHA-256: af1f82c89b11a7ba5dd818d9958168076c292c84b26df0cb8369cdb2a7b7ee75
font_01_sfnt_off0000dd91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD91 10248 bytes
SHA-256: 0d048d8c52151e38b66dd2ce17fdf8a31c5dba8c14ceaf6488b0a2d0cce40f83

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