Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2f1089a7e1db01c…

MALICIOUS

PDF

69.1 KB Created: 2021-02-04 14:13:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: b058fbd1c6fbd951244964619fb2449b SHA-1: 34402ca7e1194614a2a7caeb4287432348ea9377 SHA-256: c2f1089a7e1db01cc37f5f6774717cc701719f769908c2a6214f8031516d4166
126 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jottigo.ru/123?utm_term=advanced+funk+studies+cd+download PDF link annotation
    • http://relax35.ru/romukotivoxiwirixexod9efy.pdfIn PDF document text
    • http://dasuwupozu.22web.org/reforming_the_incorporated_societies_act_1908.pdfIn PDF document text
    • http://rezonansmusic.com/benim_hocam_yks_matematik_ders_notlar1k2en.pdfIn PDF document text
    • https://cdn.sqhk.co/pepegejivo/ajgjgSA/zimivarixepomeperibiji.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470380/normal_601b6d10a6a48.pdfIn PDF document text
    • http://future-techno.ru/aj_hack_no_surveyqhws3.pdfIn PDF document text
    • https://dotanivim.weebly.com/uploads/1/3/4/7/134705276/bafidebudegova_wulodosuzi_gubumenibu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374699/normal_5fd3849c229f6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418991/normal_5fca5d463e341.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446651/normal_60192c1159495.pdfIn PDF document text
    • http://natur-bio.space/traguese_ese_sapo_audiolibroe1h0h.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://metukobitoro.rf.gd/gixewodomonodalutamefu.pdfIn PDF document text
    • http://xiwaresijo.epizy.com/pijutabelipevomo.pdfIn PDF document text
    • http://bibobega.epizy.com/86504586715.pdfIn PDF document text
    • https://s3.amazonaws.com/vokeri/70740054392.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_off0000d148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD148 5124 bytes
SHA-256: 57c2c580ab438bb11e06503202103fd680383bef88e1dd3286d1d6587e74ee11
font_01_sfnt_off0000e2e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E9 10780 bytes
SHA-256: 09e857091b59294db9336a9b4ea12ab3079afcbee0b345087c9bad03af761e69