Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ae47dfe94084070…

MALICIOUS

PDF

40.1 KB Created: 2020-10-27 18:06:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: ea2741b674ea3d1844a80220e54dc3e4 SHA-1: 523f2e90c9e69919ec6b7842d7ebdc4f9d8842fa SHA-256: 7ae47dfe94084070ae0ec923803d553eb8c42ddbd074383fa1886454137164c0
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a known malicious redirector. The primary malicious URL identified is https://cctraff.ru/pify?keyword=d%2526d+multiverse+map, which is likely used to obscure the final destination of the malicious content. The PDF structure and the presence of numerous links suggest an attempt to lure users to malicious sites, possibly for phishing or malware distribution.

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 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.
  • 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://cctraff.ru/pify?keyword=d%2526d+multiverse+map In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368223/normal_5f876b9dba091.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402280/normal_5f90ab8b93df6.pdfIn PDF document text
    • https://savakorudefipe.weebly.com/uploads/1/3/2/3/132303238/wijowi_putezijowigaji_jegexusef_vatigodume.pdfIn PDF document text
    • https://zazejisodixad.weebly.com/uploads/1/3/4/3/134359446/kuwasa_kijazavalev.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2905/4118/files/eaglebank_arena_events_today.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/0653/7111/files/43809769538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3870/2748/files/boldly_i_approach_your_throne_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1684/5469/files/street_fighter_3_download_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/4826/7687/files/94885331161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/6811/9976/files/xoputuxevokozifuvigag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5080/2595/files/94028102393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7592/0572/files/retrieve_contacts_android_phone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9a755aa-d0fd-44a5-8070-51fc645c5099/85854958358.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2a0df74-247e-448c-82d8-66898684bc7f/actividades_letra_t_actiludis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce9df12f-4cc5-40f8-88d2-0c0b9165a51b/rinoxutipidirejuv.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006354.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6354 4156 bytes
SHA-256: a720ab9a66a765f95553d1ae55d21565e8d34aee4216bb70d40849770a960c9c
font_01_sfnt_off00007180.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7180 10048 bytes
SHA-256: f50e4888b0878fe7544d31b14b71dad3feeeef96cdc19e825c5bd47633d07fb9

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