Malicious PDF — malware analysis report

Static analysis result for SHA-256 a01f6bc2e76f259c…

MALICIOUS

PDF

43.6 KB Created: 2020-09-04 17:13:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 646432f64ff639b355ecb999c71ab3db SHA-1: 2b648d18c3176f1a6d696bbd8805438b152c80b4 SHA-256: a01f6bc2e76f259c2cf283d58586471ae0c58730bad28b78358f0ad119b9f506
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=angina+de+pecho+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to Shopify domains. The document body, though heavily obfuscated, contains the primary malicious URL. The intent appears to be to redirect the user to a malicious site, likely for further exploitation or phishing.

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.me/wix?keyword=angina+de+pecho+pdf
    • https://cdn.shopify.com/s/files/1/0433/6943/1189/files/mu_cv_chun.pdf
    • https://cdn.shopify.com/s/files/1/0462/9004/3040/files/fapimemanepewi.pdf
    • https://cdn.shopify.com/s/files/1/0434/9037/7894/files/simegakatak.pdf
    • https://cdn.shopify.com/s/files/1/0440/8056/2326/files/tenoseke.pdf
    • https://cdn.shopify.com/s/files/1/0435/3510/6200/files/63452714988.pdf
    • https://cdn.shopify.com/s/files/1/0437/3364/7525/files/adeept_arduino_starter_kit.pdf
    • https://cdn.shopify.com/s/files/1/0435/8239/0431/files/deep_ecology_principles.pdf
    • https://cdn.shopify.com/s/files/1/0429/6278/0311/files/54866585514.pdf
    • https://cdn.shopify.com/s/files/1/0431/5843/8039/files/fallin_alicia_keys_chords.pdf
    • https://cdn.shopify.com/s/files/1/0430/7261/8657/files/message_backup_for_facebook.pdf
    • https://cdn.shopify.com/s/files/1/0430/6249/3345/files/bifurcation_stenting.pdf
    • https://cdn.shopify.com/s/files/1/0429/8270/3257/files/guvisibalokiforazotome.pdf
    • https://static.usrfiles.com/ugd/0cd3a8_f2d7b85e3153471fa391be4f2e874a67.pdf
    • https://static.usrfiles.com/ugd/4b7290_daad0222d149483eb443ff8433df9e75.pdf
    • https://static.usrfiles.com/ugd/269bb8_5e1d800c595d47ada31f03178d6cba55.pdf
    • https://static.usrfiles.com/ugd/7e0eb0_79a8a71950834d159b4901053855e858.pdf
    • https://static.usrfiles.com/ugd/f09a9d_321894123df749629d068f5a1457c332.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_off0000608d.bin
8746baf2e81378adc40679501553790c3f7bea3af552c59878fd0922d26bbb3b
pdf-font-stream PDF embedded font (sfnt) at offset 0x608D 4808 bytes
font_01_sfnt_off000070db.bin
9a02a2c628dbd6fc90e5fa08a9114794c8b81ac59f4e570663435d2a3a8aba87
pdf-font-stream PDF embedded font (sfnt) at offset 0x70DB 10204 bytes
font_02_sfnt_off0000920b.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x920B 4324 bytes