Malicious PDF — malware analysis report

Static analysis result for SHA-256 178675b6abe11ac0…

MALICIOUS

PDF

74.6 KB Created: 2021-03-01 21:31:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f02f10f839c8a4e570aa1b93a04f296b SHA-1: 942c2b96bcaa1abbc6644fb31848fd5f6185cb8c SHA-256: 178675b6abe11ac087dd688fb1c6a45973c99281fdc28288e550eb099eb00716
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://golowaki.ru/wix?keyword=free+coin+master+spin+hunters+apps PDF link annotation
    • https://cdn.sqhk.co/komilede/gichfgg/wood_deer_head_cutout_hobby_lobby.pdfIn PDF document text
    • https://cdn.sqhk.co/govovazeket/gjb6xia/icici_mobile_recharge_coupon_code.pdfIn PDF document text
    • https://cdn.sqhk.co/miraroki/1hhr2Pj/2169075601.pdfIn PDF document text
    • https://cdn.sqhk.co/libobivole/IUa0hgr/towipo.pdfIn PDF document text
    • http://kabonuwumew.66ghz.com/can_nikon_dx_lenses_be_used_on_fx_cameras.pdfIn PDF document text
    • https://cdn.sqhk.co/gowamojon/4IFvFhb/twitter_stock_market_chart.pdfIn PDF document text
    • https://cdn.sqhk.co/wubofuse/c1wieih/mahjong_solitaire_classic_quests.pdfIn PDF document text
    • https://cdn.sqhk.co/tititafoza/Cih6hdg/jififipagikeleno.pdfIn PDF document text
    • https://cdn.sqhk.co/bapulofuw/4hiirjh/samsung_alpha_battery_amazon.pdfIn PDF document text
    • https://cdn.sqhk.co/pazibafax/iYhaspR/motipivoguzetalajefobanel.pdfIn PDF document text
    • https://cdn.sqhk.co/safubuguva/dsjjgcJ/ginobazumivigokavi.pdfIn PDF document text
    • https://cdn.sqhk.co/bitomasijelo/e19KhdW/sobeluvof.pdfIn PDF document text
    • https://cdn.sqhk.co/xuwisagilevi/hdFOjdo/rerasopem.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zuvuzevo.atwebpages.com/what_is_formative_and_summative_evaluation_in_education.pdfIn PDF document text
    • http://zefukasuwowejev.epizy.com/chogada_tara_video_song.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_off0000ea24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA24 5096 bytes
SHA-256: fc57b62d832afed335a717fc2cb9438285d6ffd3f842a99793c69a65ec116281
font_01_sfnt_off0000fb4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB4C 10024 bytes
SHA-256: 7053ed360720ffe74a70ffd3c1f39962819563641547eb10896f9af4631a6d98