Malicious PDF — malware analysis report

Static analysis result for SHA-256 325c5528ca4c99da…

MALICIOUS

PDF

62.2 KB Created: 2020-08-22 15:47:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e0a383617224b7d6dfcc537ad2f0d5f SHA-1: e00600360ffa08e598ce89f80d46111a69735487 SHA-256: 325c5528ca4c99dac9e083186d056efe15913a762374c88e14901a6fd4c89077
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=water+filtration+plant+project+report'. It also exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains. The document body, though heavily obfuscated, contains the same malicious URL and a benign-looking title, suggesting a lure to a malicious site.

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=water+filtration+plant+project+report
    • http://rotenunul.phlsalsafest.com/uploads/1/3/1/3/131379326/sapumuf.pdf
    • http://nuvamili.therealestatestagingstudio.com/uploads/1/3/2/6/132681947/4642328.pdf
    • http://files.audreyaliwarga.com/uploads/1/3/0/9/130969151/waseretubadepulef.pdf
    • http://files.vintage-dance-adventure.eu/uploads/1/3/0/9/130969728/6821117.pdf
    • http://tiseji.southlyoneastboysbasketball.com/uploads/1/3/0/9/130969336/d8f2e680668be.pdf
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/89793886737.pdf
    • https://cdn.shopify.com/s/files/1/0430/5167/9898/files/fe_mechanical_review_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/4416/7064/files/wezasarakitonemij.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lexopiwalosadatijasaz.pdf
    • https://cdn.shopify.com/s/files/1/0432/8328/4132/files/82819705837.pdf
    • https://cdn.shopify.com/s/files/1/0432/4252/0739/files/4739596728.pdf
    • https://cdn.shopify.com/s/files/1/0431/5450/5885/files/23202363072.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57032902602.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43377474007.pdf
    • https://cdn.shopify.com/s/files/1/0435/4143/0440/files/mowujeludafa.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_off0000a000.bin
0f5688c66ea24d686a40a5a9cbcc2c1b92249a537fdfc65b37dbd20674f34bec		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA000 4920 bytes
font_01_sfnt_off0000b0de.bin
14220c5ae5a4cc304c2ca700b9d6263c0a571bc62417afeb77c75dfdd47df640		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB0DE 11032 bytes
font_02_sfnt_off0000d6a2.bin
ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD6A2 16164 bytes

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