Malicious PDF — malware analysis report

Static analysis result for SHA-256 426926ec8fd7a60c…

MALICIOUS

PDF

77.6 KB Created: 2020-08-03 05:22:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 951270f28fafe8c3baba885d67982735 SHA-1: f5292489c23084e36a545817dac43a6b9e15f2c7 SHA-256: 426926ec8fd7a60c0bd28ffba525fd4ec013f2696797d71b2feec4aad0ad71cd
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=240-+523-+3767'. Additionally, a PDF link farm heuristic indicates the presence of numerous external links, with the first identified as 'https://cdn.shopify.com/s/files/1/0438/8149/6744/files/vutuvini.pdf'. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing the malicious intent. The primary goal appears to be luring the user 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=240-+523-+3767
    • http://files.patsendangeredanimals.com/uploads/1/3/2/7/132740670/nijirar.pdf
    • http://files.silverfincharts.com/uploads/1/3/1/8/131871467/e911a57d2bd.pdf
    • http://files.blinkofaneyehealing.com/uploads/1/3/0/7/130738641/5218771.pdf
    • https://cdn.shopify.com/s/files/1/0438/8149/6744/files/vutuvini.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ridojunewosinojep.pdf
    • https://cdn.shopify.com/s/files/1/0434/1461/8262/files/75990095233.pdf
    • https://cdn.shopify.com/s/files/1/0430/8657/7828/files/ragixagoz.pdf
    • https://cdn.shopify.com/s/files/1/0430/2569/4883/files/37938506330.pdf
    • https://cdn.shopify.com/s/files/1/0437/3970/9589/files/zajinajubomilimene.pdf
    • https://cdn.shopify.com/s/files/1/0429/0763/1783/files/manefowurepalujiz.pdf
    • https://cdn.shopify.com/s/files/1/0435/7154/4225/files/11312645685.pdf
    • https://cdn.shopify.com/s/files/1/0434/8323/4470/files/83091972013.pdf
    • https://cdn.shopify.com/s/files/1/0428/0591/9903/files/sisezimokurawexe.pdf
    • https://cdn.shopify.com/s/files/1/0433/7880/2846/files/62070994679.pdf
    • https://cdn.shopify.com/s/files/1/0428/4638/8380/files/30830458508.pdf
    • https://cdn.shopify.com/s/files/1/0429/0124/2022/files/meroxebezedudizatesuxobaw.pdf
    • https://cdn.shopify.com/s/files/1/0430/7196/3296/files/99827680897.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_off0000d9d4.bin
751355be5ac8a164ff20cb5a50751d4d64ff0ac18d003634c2be299188fa5783
pdf-font-stream PDF embedded font (sfnt) at offset 0xD9D4 4312 bytes
font_01_sfnt_off0000e86f.bin
221aa2c4c35f2afd36caf8c057e1d135ce73e5cc02af72d641c1112013c3d8ac
pdf-font-stream PDF embedded font (sfnt) at offset 0xE86F 16504 bytes
font_02_sfnt_off00011b2e.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x11B2E 4324 bytes