Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff0baf63cf1b6265…

MALICIOUS

PDF

34.7 KB Created: 2020-11-02 07:02:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d68e8d85fc12b9e626f9d641bece63d1 SHA-1: 89a0a2422f481e445470392239a0c18f27686d91 SHA-256: ff0baf63cf1b62653b34ee51a623bb90baebd4030817fad29ac7777257500ff2
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which point to SEO-optimized PDF files hosted on various platforms. One of the primary links, https://ggtraff.ru/aws?keyword=hp+15-f272wm+battery+replacement, is identified as a malicious redirector. The document's structure suggests an attempt to leverage search engine optimization to distribute malicious links, likely as part of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • 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.
  • 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/aws?keyword=hp+15-f272wm+battery+replacement
    • https://walijogopabo.weebly.com/uploads/1/3/0/7/130776167/efbc0c4c2650cc4.pdf
    • https://cdn-cms.f-static.net/uploads/4385417/normal_5f9df9c60edae.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0503/4865/4752/files/fronteiras_da_globalizao_lucia_marina.pdf
    • https://cdn.shopify.com/s/files/1/0441/2227/5992/files/naming_alkanes_alkenes_and_alkynes_quiz_70.pdf
    • https://cdn.shopify.com/s/files/1/0500/5882/1796/files/22321252962.pdf
    • https://cdn.shopify.com/s/files/1/0477/1489/3980/files/propiedades_de_las_funciones_lineales.pdf
    • https://s3.amazonaws.com/towakog/growtopia_wiki_paw.pdf
    • https://s3.amazonaws.com/gedimuta/gugulagogetilonij.pdf
    • https://cdn.shopify.com/s/files/1/0481/3560/2339/files/tongue_emoji_on_android.pdf
    • https://cdn.shopify.com/s/files/1/0506/7276/3069/files/define_predicate_nominative_pronoun.pdf
    • https://cdn.shopify.com/s/files/1/0501/8307/8048/files/mountain_bike_frame_size_guide_mens.pdf
    • https://uploads.strikinglycdn.com/files/e0f034eb-16e4-4752-b115-b674f0eda8a7/watch_hobbs_and_shaw_free_online_stream.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000729b.bin
737104a704a471aad06a85545de2776926212d89c5563b64b099990188d041d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x729B 5696 bytes

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