Malicious PDF — malware analysis report

Static analysis result for SHA-256 bea59ba76ab67f5b…

MALICIOUS

PDF

51.9 KB Created: 2020-07-26 09:38:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 614b6130b60272b07bfbea2f5f9fd162 SHA-1: 20bf11cb1f7a370f9ad76282968237336c94e27f SHA-256: bea59ba76ab67f5bde36de80d8e787f41c6f465f51c708de50f477e1eedcc98c
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to shopify.com, but one critical link redirects to a known malicious domain (ttraff.ru). This suggests the document's primary purpose is to lure users to malicious infrastructure. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the exact lure.

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=uncaught+syntaxerror+unexpected+token+illegal+android+webview
    • http://files.motionoflife.net/uploads/1/3/1/4/131452938/90e4c631.pdf
    • http://files.windwalkerrabbitry.net/uploads/1/3/0/8/130874130/ponefefizovagovokeb.pdf
    • http://files.creativeiceskating.com/uploads/1/3/0/7/130739809/saxadexokoxog.pdf
    • http://files.readingsbytara.com/uploads/1/3/2/8/132814427/jigavuto_wexivivovubo_zudivekoru_nefoban.pdf
    • http://files.asm-schoen.com/uploads/1/3/1/3/131379236/butuzavudewuxewojuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/8671/6830/files/nimiwimidupuwokelalinem.pdf
    • https://cdn.shopify.com/s/files/1/0429/4829/6857/files/19372630621.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jivanup.pdf
    • https://cdn.shopify.com/s/files/1/0438/8965/5960/files/zamadosatipowiviza.pdf
    • https://cdn.shopify.com/s/files/1/0434/4774/6721/files/74210127129.pdf
    • https://cdn.shopify.com/s/files/1/0429/6923/5619/files/zumuxiluxab.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99324429390.pdf
    • https://cdn.shopify.com/s/files/1/0433/7798/3653/files/zikifijipinunod.pdf
    • https://cdn.shopify.com/s/files/1/0433/9033/7189/files/vapufunamajujizudubefuse.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/82973104521.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_off0000730f.bin
87d6d63484b51989baf72eef41596da581597d3ce6f8c5a983afcbbf1efe22ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x730F 6292 bytes
font_01_sfnt_off000088a1.bin
5defdd5475194c2e9007ad9617d6d539c04c382d94c33575343c06638cc765c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88A1 5736 bytes
font_02_sfnt_off00009c2c.bin
698ddef0321ce8f816b29edcfda209b264baf9ae23320a29be71dd20a946d62c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C2C 11044 bytes

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