Malicious PDF — malware analysis report

Static analysis result for SHA-256 6add751fc210eaee…

MALICIOUS

PDF

70.9 KB Created: 2021-03-02 20:37:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c01467648a193f253364198c10658e0b SHA-1: aef53733f2069db89a1eeb1b0b2d7889342a274b SHA-256: 6add751fc210eaeeebfb0da9aa71a76e2b1e4d4a1b89a7f5e2b780d3b4b734c8
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://dafemum.ru/wix?keyword=utsa+downtown+campus+map In PDF document text
    • https://cdn-cms.f-static.net/uploads/4417543/normal_601a7794445e4.pdfIn PDF document text
    • https://cdn.sqhk.co/nixafusoda/nQlEvhi/summer_sports_events_mod_apk_revdl.pdfIn PDF document text
    • https://baxorejo.weebly.com/uploads/1/3/5/2/135295822/f1c2e38447ce18.pdfIn PDF document text
    • http://jekefidaz.mygamesonline.org/sc_dmv_road_test_score_sheet.pdfIn PDF document text
    • https://garepogive.weebly.com/uploads/1/3/4/8/134871831/safawobufidil.pdfIn PDF document text
    • https://betirowi.weebly.com/uploads/1/3/4/6/134661799/rebumemob.pdfIn PDF document text
    • https://sikegupul.weebly.com/uploads/1/3/4/6/134681682/c14dc91.pdfIn PDF document text
    • http://kazimibi.getenjoyment.net/stihl_fs_56_rc_attachments.pdfIn PDF document text
    • https://wolagevujizerul.weebly.com/uploads/1/3/5/3/135316080/fojerakogagenite.pdfIn PDF document text
    • http://takovod.66ghz.com/warrior_speed_leveling_guide_classic_wow.pdfIn PDF document text
    • https://kuvukodu.weebly.com/uploads/1/3/1/4/131453249/dinupuzaworiwejak.pdfIn PDF document text
    • https://pugubitef.weebly.com/uploads/1/3/5/3/135302221/fidotup.pdfIn PDF document text
    • https://tesegape.weebly.com/uploads/1/3/5/3/135387632/vikezenamegag-vusineju.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000da22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA22 5172 bytes
SHA-256: 544a7a352f0fa4e72f5dfc605888b1d62ec3fdcea04fd51e5cb1121d7ea213d0
font_01_sfnt_off0000ebc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBC3 10300 bytes
SHA-256: 6dc41cd0a62dc9269e5cfbfe87aeb017b3ade7acc1315a6723274365bd610ebc

Open this report in the interactive analyzer, or submit your own file for analysis.