Malicious PDF — malware analysis report

Static analysis result for SHA-256 d76332e7ee6d3082…

MALICIOUS

PDF

41.7 KB Created: 2020-08-12 09:53:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4709b14911a5d95dcf57d3963e04818c SHA-1: 442157342d57faa06c73152cf3a53c75f395b337 SHA-256: d76332e7ee6d30820a1aef7b1768392b5d97def958b47eea0a051af2a4ec61ff
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to SEO-optimized PDF files hosted on Shopify. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=small+pdf+merge+pdf'. This suggests the document is designed to funnel users through a redirector to a malicious destination, likely for phishing or malware distribution. No scripts were extracted from this sample.

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=small+pdf+merge+pdf
    • http://files.andrewphillipschmidt.com/uploads/1/3/0/9/130969986/74711fea83d648.pdf
    • http://files.smswanhill100years.com/uploads/1/3/1/4/131438071/329977.pdf
    • http://files.sillysloths.co.uk/uploads/1/3/1/1/131164011/9512154.pdf
    • http://josilefe.lanieroutdoors.com/uploads/1/3/1/3/131380005/limekibivotabomix.pdf
    • http://dajap.conquestgamesite.com/uploads/1/3/1/3/131384260/godirit.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mofofuledezenededur.pdf
    • https://cdn.shopify.com/s/files/1/0427/5293/4044/files/item_id_minecraft_pe.pdf
    • https://cdn.shopify.com/s/files/1/0429/3158/5180/files/bhagavad_gita_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7446/1594/files/atrial_septal_defect_pediatric.pdf
    • https://cdn.shopify.com/s/files/1/0434/8674/0646/files/taziruvefonigujelovofuge.pdf
    • https://cdn.shopify.com/s/files/1/0432/9095/1848/files/wibozedex.pdf
    • https://cdn.shopify.com/s/files/1/0438/2847/8102/files/watson_glaser_critical_thinking_appraisal_test.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/91960476686.pdf
    • https://cdn.shopify.com/s/files/1/0430/8438/2357/files/40513662425.pdf
    • https://cdn.shopify.com/s/files/1/0430/1615/9381/files/jarate.pdf
    • https://cdn.shopify.com/s/files/1/0435/6925/0463/files/65913943206.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006427.bin
41d3dfb9b98699838fa58bb7ce1779327849afdeee7a89bf75974c0b0131a888		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6427 5288 bytes
font_01_sfnt_off00007609.bin
e5fec5ae1bada45a481aeeee903159f8fc955b1a652605f70e9e802c3665730d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7609 10524 bytes

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