Malicious PDF — malware analysis report

Static analysis result for SHA-256 b702dddff1c6f91c…

MALICIOUS

PDF

72.7 KB Created: 2021-02-13 00:01:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 70e7b458c87d922f6810621cf1937852 SHA-1: e2016812d2113ec8ae138c6019c8a9c1c922943e SHA-256: b702dddff1c6f91c386f3c8858d91716db85778261609a9ca0f898a392f0e936
136 Risk Score

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
  • 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://bologen.ru/wix?keyword=power+rangers+mystic+force+games+free+download+for+android PDF link annotation
    • http://wufonidovo.22web.org/lamborghini_song_bestwap.pdfIn PDF document text
    • https://cdn.sqhk.co/vuxevabuvix/ZgjhdJ5/10684344548.pdfIn PDF document text
    • https://cdn.sqhk.co/guzowozuk/lDgg1nc/nearby_friends_facebook_web.pdfIn PDF document text
    • https://cdn.sqhk.co/gukugifixija/0L0dwgi/dokadoxofiganegadomo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496586/normal_5fcc536057b15.pdfIn PDF document text
    • http://pudumalezedokav.22web.org/8_ball_fortune_teller_answers.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384164/normal_5fd639341f34a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369333/normal_6020ab2fdbd0b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469640/normal_600264f30b15f.pdfIn PDF document text
    • https://cdn.sqhk.co/vovusupa/eCig6id/81827778782.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412380/normal_5ffa98ec840f6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383147/normal_5fdd2903a2031.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fefomuk.epizy.com/41938117731.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_off0000ddf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDF2 5536 bytes
SHA-256: 8cae5b91a58a481c9f0e3dafbe37d57e605e323da765d4e0fcda29f6b1c5b389
font_01_sfnt_off0000f0cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0CC 10660 bytes
SHA-256: 995a572d01b01dca1e309d19f62f30ba8713472e41ae912ca110ac9b5035436b