PDF malware analysis — malicious · fec573839adebb37

MALICIOUS

PDF

66.2 KB Created: 2020-08-02 13:09:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 494bc634e6990a2cf88211ea0def3b1e SHA-1: d0f13f06820a61c1010e46cbd9f879718d1632ea SHA-256: fec573839adebb37f9a3621ededf59e1b79c14e7cd2d6bbd95ddd6301bb126d8

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a lure related to 'IRS form 8300' and includes a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=irs+form+8300'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0438/2903/5158/files/fabidasosofajilo.pdf'. The document body, though partially corrupted, also contains the malicious URL, reinforcing the phishing or malware distribution intent.

Heuristics 4

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.
Fake invoice / payment lure low SE_INVOICE_LURE

Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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=irs+form+8300
- http://files.willbreytspraak.com/uploads/1/3/0/8/130813694/d169a55.pdf
- http://files.aliciapsychicreadings.com/uploads/1/3/1/4/131413362/nafasolezixi-gowepavixidebiv.pdf
- http://files.makeupbystar.com/uploads/1/3/1/6/131606331/7647386.pdf
- http://files.southsidephysie.com/uploads/1/3/1/3/131398141/sugotixutes-joxubuvamap-datux.pdf
- https://cdn.shopify.com/s/files/1/0438/2903/5158/files/fabidasosofajilo.pdf
- https://cdn.shopify.com/s/files/1/0427/8039/3639/files/gavin_arvizo_now.pdf
- https://cdn.shopify.com/s/files/1/0436/3337/7440/files/2565682446.pdf
- https://cdn.shopify.com/s/files/1/0429/5278/6074/files/siwamo.pdf
- https://cdn.shopify.com/s/files/1/0430/3486/9921/files/felagibegikurazovamile.pdf
- https://cdn.shopify.com/s/files/1/0428/0408/4899/files/gebixizelufepisoli.pdf
- https://cdn.shopify.com/s/files/1/0430/5564/4823/files/niduxegepuputuxe.pdf
- https://cdn.shopify.com/s/files/1/0433/2103/2859/files/xuvizavofabajak.pdf
- https://cdn.shopify.com/s/files/1/0433/1434/8197/files/tatefitolofek.pdf
- https://cdn.shopify.com/s/files/1/0433/4721/4486/files/61479344345.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_off0000c694.bin` `f7cc0bff97b720b8c1c7739a66a690c95e8db5188b34b9d52f443934257a3326`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC694	5108 bytes
`font_01_sfnt_off0000d7e0.bin` `10b7c4a546dd8fcbc4427e084035e89a90a71b76a518ab2c84ef14d2a13e8b1a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD7E0	10604 bytes

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