Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed928cb06d50629e…

MALICIOUS

PDF

75.3 KB Created: 2021-01-30 09:55:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 6db976b458f6e57a6e6bb199f2947f26 SHA-1: be1de0e028c2d8fb664a11e25273a546d040c6cb SHA-256: ed928cb06d50629e33ebec07aeb91e310300e755f805d25af129034f5144cda4
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ggtraff.ru'. The embedded URL is designed to lure users with a seemingly innocuous topic, likely leading to a malicious site. No scripts were extracted, but the presence of a malicious redirector strongly suggests an attempt to deliver a secondary payload or phish credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 3

  • 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.
  • 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://ggtraff.ru/wb?keyword=top%20100%20funny%20cat%20videos In PDF document text
    • http://instapresent.site/4359391395cdniy.pdfIn PDF document text
    • http://fsbsiod.com/povadofanisejupusawitohut71.pdfIn PDF document text
    • http://spencermcman.us/hammer_union_manufacturers_in_europeldud0.pdfIn PDF document text
    • http://fofesivolu.iblogger.org/anhalteweg_formel.pdfIn PDF document text
    • http://xunajoza.22web.org/26164677170.pdfIn PDF document text
    • http://wowitaly.space/196618523123g9ng.pdfIn PDF document text
    • http://sifulodidikit.22web.org/67737287711.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/wapabefizosumi/photosynthesis_cycle_worksheet.pdfIn PDF document text
    • http://nedilopasosugop.epizy.com/49389332178.pdfIn PDF document text
    • http://marenoko.epizy.com/business_studies_a_level_model_answers.pdfIn PDF document text
    • http://fojoxolizono.rf.gd/wogajar.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/internet_manager_6._35._3.pdfIn PDF document text
    • http://budunasetixap.epizy.com/teatv_8._2_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/pafexegud/linear_equation_slope_intercept_form_ex.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaporam/dazovi.pdfIn PDF document text
    • http://zunijakokusageg.epizy.com/16263964528.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/fufinivarujefoz.pdfIn PDF document text
    • http://zotuxegusam.epizy.com/96834115569.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/sojoxexodilofanasame.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_off0000e7e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7E2 5328 bytes
SHA-256: 1a6e3484448e13d90898a45b142edda41aba744b1fcfb3a441d892dfc5b714a2
font_01_sfnt_off0000fa33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA33 10696 bytes
SHA-256: c9867cee277e0012974f20318db545f51d10749504a81f60d737b5b2ecafa168

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