Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb30346fae65fb8e…

MALICIOUS

PDF

41.5 KB Created: 2020-08-13 22:30:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 006e2d36645129d1523f122adaac94d4 SHA-1: a9bb2c62c1036b55172ab10778f6a39fabcef123 SHA-256: cb30346fae65fb8e60d79422a360311afcb3c265ac0802c3bf2651f19eeb46ea
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The primary malicious URL identified is https://ttraff.com/pify?keyword=parquet+data+format+spark, which is likely used to redirect users to further malicious content. The document body, though heavily obfuscated, also contains this URL, reinforcing its role in the attack. The presence of numerous Shopify-hosted PDF links suggests an attempt to leverage legitimate platforms for hosting malicious content or for SEO poisoning.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=parquet+data+format+spark
    • http://files.financialproductsresearch.com/uploads/1/3/1/4/131453456/miwezabonati.pdf
    • http://files.mymslifestyle.com/uploads/1/3/2/3/132303270/panapepubomosi-ziwagedunetivuk-wisijudomimuv.pdf
    • http://files.hollywoodrobbie.com/uploads/1/3/1/8/131871643/pitesenavikometaxi.pdf
    • https://cdn.shopify.com/s/files/1/0452/1240/1815/files/85586868198.pdf
    • https://cdn.shopify.com/s/files/1/0431/0663/1833/files/towebexinokotonivok.pdf
    • https://cdn.shopify.com/s/files/1/0432/1899/3320/files/zevokojusowenemo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/91252588871.pdf
    • https://cdn.shopify.com/s/files/1/0428/0510/0707/files/83519980677.pdf
    • https://cdn.shopify.com/s/files/1/0430/7045/5965/files/14986450294.pdf
    • https://cdn.shopify.com/s/files/1/0431/6368/0929/files/60501931172.pdf
    • https://cdn.shopify.com/s/files/1/0438/0947/2669/files/sekifiz.pdf
    • https://cdn.shopify.com/s/files/1/0434/2949/4936/files/69466652810.pdf
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/ancelin_schtzenberger.pdf
    • https://cdn.shopify.com/s/files/1/0433/2060/6885/files/23245835207.pdf
    • https://cdn.shopify.com/s/files/1/0433/3463/1579/files/40908566681.pdf
    • https://cdn.shopify.com/s/files/1/0427/9926/8003/files/58806829405.pdf
    • https://cdn.shopify.com/s/files/1/0433/1234/9334/files/advanced_english_arabic_translation.pdf
    • https://cdn.shopify.com/s/files/1/0430/6167/4133/files/50442958583.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/
    • https://cdn.shopify.com/s/files/1/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062b2.bin
737c9b50071581189e52a5bf6172362b37bacdb7cd552bfac181aa9f20ef0f6a
pdf-font-stream PDF embedded font (sfnt) at offset 0x62B2 5344 bytes
font_01_sfnt_off000074cd.bin
9c1b6bd4d26700907c3d72e8b08fc30b7ee8ca72c55e5290ccf2de0574d653b1
pdf-font-stream PDF embedded font (sfnt) at offset 0x74CD 10548 bytes