Malicious PDF — malware analysis report

Static analysis result for SHA-256 fffa01d9ba19897e…

MALICIOUS

PDF

69.8 KB Created: 2021-02-19 16:14:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 52f90be342686e3776eb5ec0dd6cbbd7 SHA-1: ea3911cfb9687a3707cffa45cfd50fe3ff7d032b SHA-256: fffa01d9ba19897ed6e0fa7d8123c99c0ec97c51e8fb4a6e5870bf508111c291
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/wix?keyword=packer+marine+terminal+pa PDF link annotation
    • http://hookup757.fun/are_lactic_acid_bacteria_aerobic_or_anaerobicauhh5.pdfIn PDF document text
    • https://babidunilatejob.weebly.com/uploads/1/3/4/2/134266015/wobewe.pdfIn PDF document text
    • https://wididalinur.weebly.com/uploads/1/3/3/9/133986726/balatuvetedawuwoveda.pdfIn PDF document text
    • http://daravto18.ru/83710408781tf42u.pdfIn PDF document text
    • https://toxafowusolele.weebly.com/uploads/1/3/2/8/132815148/jofudelugi-dupav-levozagaw-javimetaxefo.pdfIn PDF document text
    • https://ruvawuwejijexut.weebly.com/uploads/1/3/0/8/130814193/larijofuwuberedu.pdfIn PDF document text
    • https://ganepivojo.weebly.com/uploads/1/3/4/7/134774155/fasodofavalofixik.pdfIn PDF document text
    • http://kernig.pro/280408168439hd2i.pdfIn PDF document text
    • http://vezerfa.xyz/mcat_practice_test_with_answers7e0bq.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fobupozomorefiw.epizy.com/christmas_food_shopping_list_template_uk.pdfIn PDF document text
    • http://ganusigesu.rf.gd/zefisoneru.pdfIn PDF document text
    • https://s3.amazonaws.com/debamijizozexo/gaxiwa.pdfIn PDF document text
    • http://dosunadis.epizy.com/bifesta_bright_up_cleansing_sheet_review.pdfIn PDF document text
    • https://s3.amazonaws.com/fusopoxipo/xbox_pad_emulator_for_pc.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bec0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEC0 4644 bytes
SHA-256: 39c48e23c4cf2bedfe8942b6ef6684a17305e12f4941378619e86a2b247754c8
font_01_sfnt_off0000ce4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE4E 2728 bytes
SHA-256: 7a6d5e317a03354793a1f7a70b6641b1717e145efc51107287321ad50f6b8b4f
font_02_sfnt_off0000d9f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9F4 9920 bytes
SHA-256: d06ac810b713a89de64acaa10cda1e19f5523c849f52e46e6431e9c26eda145a
font_03_sfnt_off0000fbe5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBE5 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3