Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f0d1a5d3c9e7a88…

MALICIOUS

PDF

39.8 KB Created: 2020-08-29 23:11:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7fe3a407a32727ed54afff9fa833fe8e SHA-1: 3dc39661c59f5048bafdfd16e31ea18d14aec50b SHA-256: 3f0d1a5d3c9e7a8861ab89a9913a9f82d7d6eda659aae7d0e89d0cac109b1703
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to benign content, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/wix?keyword=fire+angel+st620+battery+replacement', suggesting a lure to a potentially malicious site. The presence of numerous links and the malicious redirector indicate a likely phishing or scam campaign.

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.com/wix?keyword=fire+angel+st620+battery+replacement
    • https://static.usrfiles.com/ugd/b8c837_946e224b9e224da3ba33e5d7e7495b8f.pdf
    • https://static.usrfiles.com/ugd/b8c837_d00699e14d084271a2a4c8d3ad75c5f0.pdf
    • https://static.usrfiles.com/ugd/b8c837_2de0a9dc2c264526926d7851542ac9a4.pdf
    • https://static.usrfiles.com/ugd/b8c837_21299698ec9846c19e961adc3ac3e058.pdf
    • https://static.usrfiles.com/ugd/b8c837_f869c9e6f1204f20bb41cb2ded25ac0e.pdf
    • https://static.usrfiles.com/ugd/a2e20a_797cdb1709534fcbac00563cdac7be14.pdf
    • https://static.usrfiles.com/ugd/b8c837_4a1bec67214c41a7b49445864f8a60dd.pdf
    • https://static.usrfiles.com/ugd/b8c837_354df30bc46644f79a13d221175f54f0.pdf
    • https://static.usrfiles.com/ugd/b8c837_89cc82cb06bd47df83cc7842ad9e5c91.pdf
    • https://cdn.shopify.com/s/files/1/0429/2640/7833/files/ethernet_cable_colour_code.pdf
    • https://cdn.shopify.com/s/files/1/0433/4206/9918/files/rodijukufed.pdf
    • https://cdn.shopify.com/s/files/1/0434/3853/8904/files/fifuda.pdf
    • https://static.usrfiles.com/ugd/3aee12_89fe9f99fef44e0dafc9c2bfd12f05ac.pdf
    • https://static.usrfiles.com/ugd/b8c837_02fc83144f7545f687d0250a539dcb4b.pdf
    • https://static.usrfiles.com/ugd/66c878_e7f1b818447c48c797e625ba846c0734.pdf
    • https://static.usrfiles.com/ugd/b8c837_39353e1001714595bbb675b2a6e980ea.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_off00005b1f.bin
eded40ebba1d8c23dbe630cb0e71d30d5ace51303f66bfb5036e712810df586a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B1F 5876 bytes
font_01_sfnt_off00006f0f.bin
80d8e6de384651259c6d9d496a62065a7c7819f05f8f38e9da01323c6a2681f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F0F 10296 bytes

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