Malicious PDF — malware analysis report

Static analysis result for SHA-256 32c16a4a0a32187c…

MALICIOUS

PDF

44.8 KB Created: 2020-08-07 15:28:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40a91c810d5772328b8b21cdfaf61e27 SHA-1: 14140bdfdb708f722509758dfcc9be76e5ecbfd9 SHA-256: 32c16a4a0a32187c097b2b58a463c81a6a10f16cc7c827536f659b369d88b10b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a mass external link farm, with many links pointing to PDF files hosted on cdn.shopify.com. One of the primary links directs to a known malicious redirector at `https://ttraff.ru/pify?keyword=atropa+acuminata+pdf`. This suggests the document is designed to lead users to malicious infrastructure, likely for further exploitation or credential harvesting.

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://ttraff.ru/pify?keyword=atropa+acuminata+pdf
    • http://files.vikingfiberarts.com/uploads/1/3/0/8/130874524/8588418.pdf
    • http://files.nejnamc.org/uploads/1/3/1/6/131607346/bujowadatasivo.pdf
    • http://files.highvalleypoa.com/uploads/1/3/0/8/130874134/f9dc973c670.pdf
    • https://cdn.shopify.com/s/files/1/0435/3176/3864/files/gixudamu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5162/2306/files/19543720292.pdf
    • https://cdn.shopify.com/s/files/1/0434/5459/5224/files/19046735821.pdf
    • https://cdn.shopify.com/s/files/1/0434/7923/6760/files/seemingly_irrelevant_decisions.pdf
    • https://cdn.shopify.com/s/files/1/0436/4078/3008/files/novena_de_navidad_colombia.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65621046881.pdf
    • https://cdn.shopify.com/s/files/1/0432/0365/7887/files/74828771034.pdf
    • https://cdn.shopify.com/s/files/1/0431/9071/4532/files/18093545949.pdf
    • https://cdn.shopify.com/s/files/1/0434/8831/3506/files/mechanical_vibrations_schmitz_smith.pdf
    • https://cdn.shopify.com/s/files/1/0432/5592/2856/files/95873654769.pdf
    • https://cdn.shopify.com/s/files/1/0429/7395/4204/files/rinuxufokebilopalutojel.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006479.bin
1dea1e8a7b9abec3667dca4ac6d1a857fc261f1197c916356b942409150f1362		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6479 4844 bytes
font_01_sfnt_off000074cb.bin
2b4f4682afa8607873320e75f2b183298a2e98c464f91f7cbc85cac99fdc2002		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74CB 10552 bytes
font_02_sfnt_off000098c8.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98C8 4324 bytes

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