Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4829f9ea1f8c5f5…

MALICIOUS

PDF

45.0 KB Created: 2020-08-18 13:29:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 573061a42c85ee8f670db8cca76cb1a9 SHA-1: 797c73432eeaf54cb7af3ae40a83d0c6e33eee92 SHA-256: d4829f9ea1f8c5f50a43b47c09b3f4508383554aa950eb75d04c97557ec6aed2
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.ru). This suggests the document is designed to lure users into clicking malicious links, likely for phishing or malware distribution. The presence of a "fluke 116 multimeter datasheet" in the document body and the malicious URL's query parameter further supports this 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=fluke+116+multimeter+datasheet
    • http://files.fulchandkisumu.com/uploads/1/3/1/4/131454733/dffe43a3c4df5c4.pdf
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/agartha_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/58221831069.pdf
    • https://cdn.shopify.com/s/files/1/0434/6439/2866/files/nazavotoziw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0097/8853/files/alateen_literature.pdf
    • https://cdn.shopify.com/s/files/1/0435/8511/0171/files/pomapasozowe.pdf
    • https://cdn.shopify.com/s/files/1/0428/2118/9788/files/40275494680.pdf
    • https://cdn.shopify.com/s/files/1/0437/3427/0117/files/23287425013.pdf
    • https://cdn.shopify.com/s/files/1/0429/1556/1638/files/nudux.pdf
    • https://cdn.shopify.com/s/files/1/0435/0581/1608/files/20623089.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/41952333351.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xajubebajodefemun.pdf
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/wedegizifujiz.pdf
    • https://cdn.shopify.com/s/files/1/0429/6110/9155/files/nolutexenaf.pdf
    • https://cdn.shopify.com/s/files/1/0432/1568/3744/files/mofufow.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_off00006259.bin
a1500141d055208d46489a88cebd4070b5a5e5e7efc18f173aba42e937b73c24		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6259 5292 bytes
font_01_sfnt_off00007436.bin
c2c40eb6c96a7c777bbe2fcb8756dd241f16ac5e534c6a2beec307a27b705add		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7436 16760 bytes

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