Malicious PDF — malware analysis report

Static analysis result for SHA-256 62747b3c4d726500…

MALICIOUS

PDF

38.4 KB Created: 2020-08-20 00:19:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 432e5b9d77ef557d5462c6909e09d94f SHA-1: 506dab737d4dcf5ebff7a6bda167dfdfdeee03f8 SHA-256: 62747b3c4d726500c22e9efa230d2ed48a71e85bf97301949a917439c86b4c14
162 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, indicating an attempt to lead the user to harmful content. The presence of numerous other links, many pointing to benign Shopify URLs, suggests a link farm or SEO manipulation tactic. The document body, though heavily obfuscated, contains the malicious URL and text related to urgency, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.ru/pify?keyword=love+breakup+song+whatsapp+status
    • http://files.wisdomoftaoism.com/uploads/1/3/2/7/132710794/a91fe470055.pdf
    • http://files.positivemeditation.com/uploads/1/3/1/0/131070112/7b38c6d7213.pdf
    • http://files.hillcountrycommunicators.org/uploads/1/3/0/9/130969986/7536354.pdf
    • http://files.multifloraplants.com/uploads/1/3/1/4/131437983/jipulifetinu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/8758/3650/files/71446054148.pdf
    • https://cdn.shopify.com/s/files/1/0435/8930/4477/files/74457919030.pdf
    • https://cdn.shopify.com/s/files/1/0432/0811/4340/files/xuzudizovukaso.pdf
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/17313920522.pdf
    • https://cdn.shopify.com/s/files/1/0427/7764/1116/files/44442144094.pdf
    • https://cdn.shopify.com/s/files/1/0431/8678/2369/files/windows_mwdia_player_skin.pdf
    • https://cdn.shopify.com/s/files/1/0430/4073/5381/files/27005142648.pdf
    • https://cdn.shopify.com/s/files/1/0431/1266/1152/files/44843290087.pdf
    • https://cdn.shopify.com/s/files/1/0430/4686/2997/files/rovunagef.pdf
    • https://cdn.shopify.com/s/files/1/0431/3825/2954/files/gogaxogoxofus.pdf
    • https://cdn.shopify.com/s/files/1/0428/2269/7126/files/tokevajisemanogile.pdf
    • https://cdn.shopify.com/s/files/1/0430/9309/8660/files/62315431572.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000593b.bin
5ed827eb8ea70eec3c9fd52575579c148378998a5ec58c74ef98013532ce64e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x593B 5348 bytes
font_01_sfnt_off00006b81.bin
ab810e5ae6cc8b8c958d7743dc1d0af346ec503b1edaaf84acbb264f0739862f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B81 9732 bytes

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