Malicious PDF — malware analysis report

Static analysis result for SHA-256 d284399a3e6e6482…

MALICIOUS

PDF

41.7 KB Created: 2020-10-15 19:14:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 290ecc1cd3fb51432093840a02383c16 SHA-1: e6f86af7eaf2625d848cb7ec88c4b17c6a3ce1a3 SHA-256: d284399a3e6e6482ba5232a50d58b0105681c8c3b95b1eaf55e750aadab94674
124 Risk Score

Malware Insights

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

This PDF file was identified as malicious by an ML classifier and contains multiple links to known malicious redirectors and disposable hosting. The embedded links, such as 'https://ttraff.club/pify?keyword=longrich+catalogue+south+africa+pdf', are designed to deceive users into clicking them. The document body, though heavily obfuscated, contains references to these URLs, indicating a phishing or redirection attempt.

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://ttraff.club/pify?keyword=longrich+catalogue+south+africa+pdf In PDF document text
    • https://pavowojavujide.weebly.com/uploads/1/3/1/3/131398322/kulosu-ruluxoji.pdfIn PDF document text
    • https://pigogokeda.weebly.com/uploads/1/3/1/8/131857695/gapit-galijawijekinik-kedafel.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/domovodibaposix.pdfIn PDF document text
    • https://xubuvene.weebly.com/uploads/1/3/1/3/131380433/25fa9e3f4.pdfIn PDF document text
    • https://redunexodozik.weebly.com/uploads/1/3/0/8/130814050/809ee8feae4.pdfIn PDF document text
    • https://site-1041672.mozfiles.com/files/1041672/sisosatafuwa.pdfIn PDF document text
    • https://site-1037221.mozfiles.com/files/1037221/nixogolunidaza.pdfIn PDF document text
    • https://site-1040884.mozfiles.com/files/1040884/video_trimmer_download_for_android.pdfIn PDF document text
    • https://site-1039560.mozfiles.com/files/1039560/tilolog.pdfIn PDF document text
    • https://site-1040975.mozfiles.com/files/1040975/wibetupupenibodewavipog.pdfIn PDF document text
    • https://site-1038733.mozfiles.com/files/1038733/69961373034.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/49d18337-8d77-4d25-82f2-7cda4606fe3c/sabarozowexakefux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfaf9775-c584-44f7-9866-4c8f369c89da/15244816142.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b33f859-b1a8-42f5-b17b-7e80ef655ddf/nilewikabejo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca11e1b7-3eb6-43cf-b64d-c10661165c69/66685120569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/2280/9750/files/72289656548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9699/7030/files/90985019297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8587/9704/files/zitifevixezesolodatelen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6277/8263/files/braun_series_3_3040s.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84c6f809-cbf8-4ae5-a527-5e24089cfdce/dogamixokenof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d52fdd1-f2b3-4e8a-891c-833a09d886f1/xinajinibisanumed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac8a7256-e372-4582-a6f5-193bbcec96cb/tivagenetetorexoxapurem.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_off000064d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D6 5360 bytes
SHA-256: 44b7cc706184cf2c349f640d8e6aaf4ff67801965b1e4f7cb53a27a3c9033025
font_01_sfnt_off0000770b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x770B 10052 bytes
SHA-256: 717a0f3a7c48fa9783952a747f3e1814a866f38d54730b0bbe57a6f019cebaf4

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