Malicious PDF — malware analysis report

Static analysis result for SHA-256 d280bdc527942549…

MALICIOUS

PDF

45.5 KB Created: 2020-08-06 11:49:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b43743be33a67e4f9b91dad11227102 SHA-1: 99b52f81d143ec7b7809123f88ab610f7194a065 SHA-256: d280bdc527942549312ac93a06080a0491663a3c0a0f36cc1ab6b34c027f4ed7
120 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to benign Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=coffee+drink+recipes+pdf', suggesting a lure to disguise malicious activity. The presence of numerous PDF links and a malicious redirector indicates a likely attempt to drive traffic to malicious content, potentially for phishing or malware distribution.

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.cc/pify?keyword=coffee+drink+recipes+pdf
    • http://files.saintmarysmboro.com/uploads/1/3/1/6/131636725/dunedevu.pdf
    • http://desip.cranmog.org/uploads/1/3/1/4/131453870/wanureb.pdf
    • http://files.e-s-network.com/uploads/1/3/1/4/131406498/fd2f04ca29a0.pdf
    • https://cdn.shopify.com/s/files/1/0433/9331/9079/files/wuwimedojawibegajuluzix.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/49221060197.pdf
    • https://cdn.shopify.com/s/files/1/0434/2205/6600/files/on_cooking_5th_edition_study_guide_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/6083/0103/files/vusomaxamimu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8286/6072/files/zolitu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuwuvedalolavotidexetugom.pdf
    • https://cdn.shopify.com/s/files/1/0435/5388/2280/files/zuxadavorakibidixubir.pdf
    • https://cdn.shopify.com/s/files/1/0430/4220/9945/files/varicose_veins_management.pdf
    • https://cdn.shopify.com/s/files/1/0434/6180/4197/files/lalefoguwibesutinugal.pdf
    • https://cdn.shopify.com/s/files/1/0432/7122/5494/files/pimategefujozezadad.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97242885008.pdf
    • https://cdn.shopify.com/s/files/1/0431/5208/1053/files/23099454331.pdf
    • https://cdn.shopify.com/s/files/1/0440/6794/6648/files/gorinasulixaxisu.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_off00005d3a.bin
2f5b85c9a494aeb675f9d0f3b204f26e7183bbdf941225e59dad94fb88d1ebed
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D3A 4876 bytes
font_01_sfnt_off00006de8.bin
ac83f87f00614653c9c3383712a420d0827c54374666dfdc4305e44950497b4c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE8 10116 bytes
font_02_sfnt_off0000909e.bin
76258cbce47e593dad880188f77abb34d46f961884c61daafb6e5435e79fa54d
pdf-font-stream PDF embedded font (sfnt) at offset 0x909E 17132 bytes