PDF malware analysis — malicious · acb193ae259846c7

MALICIOUS

PDF

64.6 KB Created: 2020-08-08 07:02:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3ff8e539e6a99d58c96f46b7797bbc1b SHA-1: 6b65d395f22a0b0cf932b8dc7c1045dc67a71749 SHA-256: acb193ae259846c7d4d4bbfe02538ac49bb1e8818fe8f25113dea52aab0f556b

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link leads to a URL that is part of a link farm, suggesting an attempt to manipulate search engine results or distribute malicious content. The primary malicious URL identified is https://ttraff.com/pify?keyword=bernoulli+s+theorem+pdf+download.

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/pify?keyword=bernoulli+s+theorem+pdf+download
- http://files.staceysherman.net/uploads/1/3/0/8/130874338/1904488.pdf
- http://files.misohandmade.com/uploads/1/3/2/6/132695519/f6b208f9cd.pdf
- http://lojojijip.dixiehighcounseling.org/uploads/1/3/1/4/131452883/0d31b7ee7a.pdf
- http://lojojijip.dixiehighcounseling.org/uploads/1/3/1/4/131452
- https://cdn.shopify.com/s/files/1/0428/4016/2467/files/75583763266.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/letowopebofowebizuwir.pdf
- https://cdn.shopify.com/s/files/1/0436/4202/8182/files/nalaseratunovunupo.pdf
- https://cdn.shopify.com/s/files/1/0435/3431/9776/files/metoxu.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83390791822.pdf
- https://cdn.shopify.com/s/files/1/0429/3758/1734/files/gikapetisivaromozemo.pdf
- https://cdn.shopify.com/s/files/1/0434/9624/3364/files/wezojusujomelusomej.pdf
- https://cdn.shopify.com/s/files/1/0437/5920/6561/files/wapeguj.pdf
- https://cdn.shopify.com/s/files/1/0433/9387/6118/files/descendants_3_audrey_s_diary.pdf
- https://cdn.shopify.com/s/files/1/0431/0243/7527/files/canales_de_distribucion_gestion_comercial_y_logistica.pdf
- https://cdn.shopify.com/s/files/1/0428/7217/6799/files/fijisururo.pdf
- https://cdn.shopify.com/s/files/1/0431/0761/4882/files/julepariwumix.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zimupumunilojoduwa.pdf
- https://cdn.shopify.com/s/files/1/0431/9094/3904/files/bumekigisedinowemimopi.pdf
- https://cdn.shopify.com/s/files/1/0433/4528/1183/files/11556458677.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_off0000b6a8.bin` `a5dade301acbdb25a4b9bc0995e2f2c0730f79097d98b3b686d9c6d686578848`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB6A8	5424 bytes
`font_01_sfnt_off0000c900.bin` `b637157ccbf1a25575770dc405a1b6016d4f91ef5222258b5fd5031eb6cbd5b0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC900	13712 bytes

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