Malicious PDF — malware analysis report

Static analysis result for SHA-256 6816ee6088251b30…

MALICIOUS

PDF

64.9 KB Created: 2021-02-17 09:42:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0bda0017d6d4be238dc57c12f6152ed8 SHA-1: 99259344ce18b94e247fe2dba9532ea96d139174 SHA-256: 6816ee6088251b3013e804e153205331da084b0d692fefd35487633191cd9b03
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wix?keyword=hill+climb+racing+apkmirror PDF link annotation
    • https://ridogorizaloliv.weebly.com/uploads/1/3/4/5/134527302/podifisomirena_tewemuvapewaz_widikozusa.pdfIn PDF document text
    • https://cdn.sqhk.co/niwonosorude/icKkib1/21285262679.pdfIn PDF document text
    • https://vifiboreb.weebly.com/uploads/1/3/5/3/135349596/dazofew_powugitali_gegewenabuwed_rerutimabeke.pdfIn PDF document text
    • https://bujefodamefizup.weebly.com/uploads/1/3/1/0/131070612/0f62cac1a4.pdfIn PDF document text
    • https://cdn.sqhk.co/raserijene/ajg7wCr/57199556545.pdfIn PDF document text
    • https://sibevuguz.weebly.com/uploads/1/3/4/8/134859718/101ac97.pdfIn PDF document text
    • https://cdn.sqhk.co/nogegamapagi/ticigds/62286685576.pdfIn PDF document text
    • https://cdn.sqhk.co/vulovosovem/WTjfifE/switch_eshop_saver.pdfIn PDF document text
    • https://jurujixomegisi.weebly.com/uploads/1/3/4/7/134745805/nuzewu.pdfIn PDF document text
    • https://cdn.sqhk.co/zikufivol/aij22ja/chess_opening_lab_cracked.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/redegelesibif/hipaa_compliant_fax_cover_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/sureflap_microchip_cat_door_nz_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/rabopuvenefon.pdfIn PDF document text
    • https://s3.amazonaws.com/vawoginele/55749669917.pdfIn PDF document text
    • https://s3.amazonaws.com/takurugilij/63861592570.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/keravufesasu.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_off0000c282.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC282 5240 bytes
SHA-256: 6258a389d0094ae505d3655cd8f08e323f2cb24bd71c9d236058277f074a246c
font_01_sfnt_off0000d437.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD437 10112 bytes
SHA-256: 5a702951acf6ad052cef0b6594b91067df6fc3caff9c6aaa55b63085241ca368