Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfa8d0c22e983992…

MALICIOUS

PDF

48.8 KB Created: 2020-07-27 07:05:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c91e708a05fcbe7751e69f9621ecc7a SHA-1: 0675dba496d6dc6477c2845224ad667a293f9458 SHA-256: cfa8d0c22e983992ecc3d76a2b66bd227ffa4b9e24268c7e3597b912a62dc31e
120 Risk Score

Malware Insights

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

The PDF file contains a deceptive document body masquerading as a news report about drugs. It embeds a significant number of external links, with one critical heuristic identifying a link to a known malicious redirector. Another heuristic flags the document as a PDF link farm, indicating a large number of outbound links, many of which point to Shopify domains hosting other PDFs. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

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/pify?keyword=example+of+news+report+about+drugs
    • http://files.lacla.us/uploads/1/3/1/4/131406701/5208991.pdf
    • http://files.athleteslab.org/uploads/1/3/1/4/131455283/4e91c04a8bce7ac.pdf
    • http://files.dsppsu.com/uploads/1/3/1/8/131872238/6978050.pdf
    • https://cdn.shopify.com/s/files/1/0434/6976/6808/files/lotugure.pdf
    • https://cdn.shopify.com/s/files/1/0430/3945/7429/files/77476651257.pdf
    • https://cdn.shopify.com/s/files/1/0429/2296/7207/files/nutabib.pdf
    • https://cdn.shopify.com/s/files/1/0429/8512/8090/files/96366439887.pdf
    • https://cdn.shopify.com/s/files/1/0432/9524/4452/files/78936415574.pdf
    • https://cdn.shopify.com/s/files/1/0430/6255/8874/files/solimabovavigopes.pdf
    • https://cdn.shopify.com/s/files/1/0434/5036/8152/files/wajufuxokesapipenisexajun.pdf
    • https://cdn.shopify.com/s/files/1/0428/2833/3212/files/41686504043.pdf
    • https://cdn.shopify.com/s/files/1/0428/1883/0492/files/povovinuduseze.pdf
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/51404807180.pdf
    • https://cdn.shopify.com/s/files/1/0432/3151/0690/files/54748200635.pdf
    • https://cdn.shopify.com/s/files/1/0431/0741/8273/files/23768333474.pdf
    • https://cdn.shopify.com/s/files/1/0427/4287/4278/files/kabepomefeba.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/
    • https://cdn.shopify.com/s/files/1/0430/625

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008161.bin
df36e9ce2e4beaaf82fc3c0282a5f8a2f945286213151f56b74ce25d221d0c36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8161 5452 bytes
font_01_sfnt_off000093e8.bin
336fb5abf1890b719cf4593832de1526cdc57cf7ff4445c2be5b6e363241be24		 pdf-font-stream PDF embedded font (sfnt) at offset 0x93E8 9924 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.