Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4f01f424bb6907a…

MALICIOUS

PDF

72.3 KB Created: 2021-03-03 15:12:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 95a22d1bfa6f8ca374bc91f9db32f810 SHA-1: 331168ebf84f79318982f1e18086d1c3b0b40af0 SHA-256: e4f01f424bb6907a728a4b42cee9e043785cec85a1904df4e053d5d2576b54ba
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=student+exploration+human+homeostasis+answer+key+pdf PDF link annotation
    • https://cdn.sqhk.co/gupukutolet/0Zwp2jf/can_i_forward_my_calls_to_another_phone.pdfIn PDF document text
    • http://dipazekonowa.mypressonline.com/mopoditunobagizoka.pdfIn PDF document text
    • https://cdn.sqhk.co/potasuregoz/B5gjdBQ/the_hangover_quotes_imdb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370286/normal_600be58b32b46.pdfIn PDF document text
    • https://cdn.sqhk.co/purorenutuw/ekpjahf/supercharger_kit_for_5._7_hemi.pdfIn PDF document text
    • https://cdn.sqhk.co/tuseliwi/hjAhcwJ/casino_slot_games_for_pc_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462096/normal_602c4c9d41f5b.pdfIn PDF document text
    • https://cdn.sqhk.co/jupozaregu/RjfhdG8/dumevef.pdfIn PDF document text
    • http://wijofotezopadik.medianewsonline.com/6111333703.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490001/normal_6029ef899d13c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475392/normal_60035a1e4a5ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384639/normal_603c11a36dfe0.pdfIn PDF document text
    • https://cdn.sqhk.co/lupobikud/8BjaUgf/highway_stunt_bike_riders_mod_apk_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/dosakupu/DjebQid/food_cooking_kitchen_restaurant_cooking_games_play_online.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/free_resume_templates_for_word_2007.pdfIn PDF document text
    • http://pidodexogejax.myartsonline.com/49650706979.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/rusiguxekaribujimak.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/1274024732.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_off0000dc39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC39 5708 bytes
SHA-256: 28086039c1e5934d189fc41c7519e72f9c29878906834e0e71e730d910968bf6
font_01_sfnt_off0000ef96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF96 10744 bytes
SHA-256: e0cbefabf56ad80c4efc7fabe34c1e1984ca6b4ad61af7e1eefa5fba6d4300aa