Malicious PDF — malware analysis report

Static analysis result for SHA-256 17a5e64f91c41f27…

MALICIOUS

PDF

70.6 KB Created: 2021-02-15 22:43:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b8cc826f60ad7b5ac80d688d2835012a SHA-1: 2b37234cddca8514188f144ab89a088cfe8d68a9 SHA-256: 17a5e64f91c41f27c129b16ce5ff0d12335464ce43c5cf18272ef0e451aad841
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://bologen.ru/wix?keyword=port+replicator+hp PDF link annotation
    • https://cdn.sqhk.co/jugomuzuteb/hgjehcG/fishdom_game_hacks.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369657/normal_5fdc19f95e792.pdfIn PDF document text
    • https://cdn.sqhk.co/sejiragidu/bhjTSfC/dragon_city_breeding_sanctuary_guide_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/dipujabuxiw/i78Qbhc/at_t_thanks_hbo_max.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448113/normal_6016c866a2a2d.pdfIn PDF document text
    • https://cdn.sqhk.co/fudamozomeb/hjjfrgc/29410838188.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463788/normal_5fdbcc50333dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460677/normal_5fe9926c8602f.pdfIn PDF document text
    • https://cdn.sqhk.co/woguwubege/aYJeifR/xetaliberokonilidabulutas.pdfIn PDF document text
    • https://cdn.sqhk.co/numokafas/hhgJhgF/deep_space_rush_achievements.pdfIn PDF document text
    • https://cdn.sqhk.co/zexukobesu/Rgeihia/builder_base_level_5_builder_hall.pdfIn PDF document text
    • http://pidejofejan.iblogger.org/94888065678.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/suzixegazunow/46201504712.pdfIn PDF document text
    • https://s3.amazonaws.com/boduxatavepe/baixar_netflix_apk_android.pdfIn PDF document text
    • https://s3.amazonaws.com/sazariwapa/the_kingdom_of_kaliron_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/rate_of_iodination_of_acetone_lab_report.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_off0000d2ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2AD 4844 bytes
SHA-256: e90b7576a4823f26eba869a67a5be865c928ff9d691e7bc572def1723d4f4b69
font_01_sfnt_off0000e320.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE320 14068 bytes
SHA-256: 4298bac494e59cc805f7608441cdcc9576f87043986e80f671ac1871591b9b5d