Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb9d948429e067de…

MALICIOUS

PDF

44.6 KB Created: 2020-11-07 05:10:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: feab6f7aef7104862934670760811ac2 SHA-1: cc4c22da6f505ae20efbb6b0e4e265b077430b73 SHA-256: fb9d948429e067dedef4f9ed18781426611524dbe2dd024f98790c11e3c35fb0
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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://traffking.ru/aws?keyword=adventure+time+card+wars+apk+free+download In PDF document text
    • https://motanaweda.weebly.com/uploads/1/3/4/3/134316912/witem.pdfIn PDF document text
    • https://noxepelobisuse.weebly.com/uploads/1/3/1/8/131871648/gusevamive-zixizipivogidug-nemopipafa-luvisorago.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://munakuwujeju.files.wordpress.com/2020/11/download_logarithm_and_antilogarithm_table.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/ready_player_one_full_movie_free_1080p.pdfIn PDF document text
    • https://nawazuled.files.wordpress.com/2020/11/sagojisefuvi.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/46794255241.pdfIn PDF document text
    • https://s3.amazonaws.com/litunux/fbm747_belkin_manual.pdfIn PDF document text
    • https://megaladerasa.files.wordpress.com/2020/11/minecraft_the_hidden_versions.pdfIn PDF document text
    • https://panezij.files.wordpress.com/2020/11/gudizuwejaxirawijapumo.pdfIn PDF document text
    • https://vamudud.files.wordpress.com/2020/11/lizegenunemuwomizam.pdfIn PDF document text
    • https://xuviwobetar.files.wordpress.com/2020/11/pakosolekezamifofu.pdfIn PDF document text
    • https://navisemuzezo.files.wordpress.com/2020/11/fiwiluwavorajotekiwukoda.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a25f83a-6b29-4d69-a290-f2714d3e27b1/mukakakoweligagax.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_off00006afd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AFD 5508 bytes
SHA-256: 274ce034883d79bccd1bde3b563a0cf5e209022150a3f36529e8099911d56348
font_01_sfnt_off00007dbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBD 12320 bytes
SHA-256: c8481688802cb566b0d65f10799d5ed58fc36c8fc0727348b088529b1fd9ab8e

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