PDF malware analysis — malicious · dafcfcd7a11840ce

MALICIOUS

PDF

46.0 KB Created: 2020-08-30 21:05:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3e562be104edcb2e01bf36ddabd1cdd9 SHA-1: 45190d377e56a145f93065eac069b0349ff27113 SHA-256: dafcfcd7a11840ce459d51f6167face78db48b1043591dd1df3742ff77cebd23

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=redact+pdf+adobe+reader+dc'. This URL is presented in a way that suggests a lure for users seeking PDF redaction tools. The document also contains a large number of embedded links, many pointing to Shopify domains, which is flagged as a link farm. The primary malicious IOC is the redirector URL, which is likely used to funnel victims 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.com/wix?keyword=redact+pdf+adobe+reader+dc
- https://cdn.shopify.com/s/files/1/0428/8059/8172/files/66384015640.pdf
- https://cdn.shopify.com/s/files/1/0431/9654/7230/files/tipos_de_actos_del_habla.pdf
- https://cdn.shopify.com/s/files/1/0428/9724/4316/files/fosemusezar.pdf
- https://cdn.shopify.com/s/files/1/0435/2180/2404/files/mutilate_a_doll_4.pdf
- https://cdn.shopify.com/s/files/1/0435/7105/2707/files/67165875006.pdf
- https://cdn.shopify.com/s/files/1/0431/3507/4465/files/kuwujolaxetefowamib.pdf
- https://cdn.shopify.com/s/files/1/0432/3137/9624/files/6742421310.pdf
- https://static.usrfiles.com/ugd/9734e7_bf19af24cf2b4e8aa039bc0747a88c64.pdf
- https://static.usrfiles.com/ugd/784815_dcdc762661924046a183c58c6e64eaf4.pdf
- https://static.usrfiles.com/ugd/b8c837_59ea315c6e2249a7b59a97cd758be3dc.pdf
- https://static.usrfiles.com/ugd/868401_b60a53b672b140789bc840027f10c4b4.pdf
- https://static.usrfiles.com/ugd/b8c837_d4b78f0c91ff4000a4e5cf4d52f44875.pdf
- https://static.usrfiles.com/ugd/b8c837_decd755ffaf740bcaa3f681a02f97f30.pdf
- https://static.usrfiles.com/ugd/b8c837_988c0c7e86fa4635926f388796f04f61.pdf
- https://static.usrfiles.com/ugd/7598fa_6da136955adb465f8fcfaaaf304f30ca.pdf
- https://static.usrfiles.com/ugd/b8c837_0112073a40784c0b8b3ba496522f7bcf.pdf
- https://static.usrfiles.com/ugd/b8c837_88f9f808c7174413afa36194e9306ed1.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.

Filename	Kind	Source	Size
`font_00_sfnt_off000077c1.bin` `4b0aaf7734d800554eb03a529c3e6f6a8b17f7c49857dad407c31f790a899e27`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x77C1	5084 bytes
`font_01_sfnt_off0000891c.bin` `151e88bcbb60ee67684490b2ddf06dbc7acc9890049147ea2ae9293f1150e6ae`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x891C	10060 bytes

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