Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa67071c5854929f…

MALICIOUS

PDF

46.0 KB Created: 2020-08-31 21:57:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e27e35e6ade6f1f86f17d2fb5efcd7f SHA-1: 139efb965cb056fb8d89641c5025cc2c6f8fc76e SHA-256: fa67071c5854929fa2ebe3936f0229953e3b2a9902e23e760af03f541592f7c8
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though partially corrupted, suggests a lure related to a '2020 calendar australia printable template'. The primary malicious IOC is the redirector URL, which is likely used to funnel users to further malicious content. The file's structure and link farm indicate a social engineering attempt to drive traffic to potentially harmful sites.

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/wix?keyword=2020+calendar+australia+printable+template
    • https://static.usrfiles.com/ugd/576447_a09989d9a1894ca5acc0a90a883cd994.pdf
    • https://static.usrfiles.com/ugd/ab0441_b0060c5aa98e4fc699f4769db8b00d08.pdf
    • https://static.usrfiles.com/ugd/a4d998_bc31eefbac5946b2ba04cf2b82022eb2.pdf
    • https://cdn.shopify.com/s/files/1/0434/8136/6685/files/sonon.pdf
    • https://cdn.shopify.com/s/files/1/0439/2920/6939/files/58572108153.pdf
    • https://cdn.shopify.com/s/files/1/0434/5780/6503/files/dowry_act.pdf
    • https://cdn.shopify.com/s/files/1/0429/4872/2851/files/20149555708.pdf
    • https://cdn.shopify.com/s/files/1/0434/8113/7316/files/zirosidivotadun.pdf
    • https://cdn.shopify.com/s/files/1/0429/9273/0275/files/39681901790.pdf
    • https://cdn.shopify.com/s/files/1/0440/7784/2584/files/8754732500.pdf
    • https://cdn.shopify.com/s/files/1/0432/3167/4535/files/89797380697.pdf
    • https://cdn.shopify.com/s/files/1/0432/5795/4467/files/market_risk_definition.pdf
    • https://cdn.shopify.com/s/files/1/0430/3516/4835/files/24233370809.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_off0000678c.bin
d57e7ff06f6780ad4162d18315af99631ea29d45657aa3f52fba859abab339a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x678C 5312 bytes
font_01_sfnt_off0000795d.bin
e5d1e798e392ca1290ac4c51a0bb5e70763d0db8ce8e8bceb93489a10ff9d3a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x795D 10380 bytes
font_02_sfnt_off00009ce9.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9CE9 4324 bytes

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