PDF malware analysis — malicious · 3b8ad329a8512782

MALICIOUS

PDF

50.9 KB Created: 2020-08-17 02:21:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 886404f878f94c524a570061f8a0f7fc SHA-1: c1c7777c7bd7e0e4aa775c43d287ccf28cf12439 SHA-256: 3b8ad329a85127823e7b0bbea9f535738638fbbf8e011ea364e8b3f764f9baed

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged for containing a malicious redirector link and a link farm. The primary malicious URL, https://ttraff.ru/pify?keyword=snow+leopard+fact+sheet, is likely used to funnel victims to a malicious site. The document body, though heavily corrupted, contains this URL and numerous other links hosted on cdn.shopify.com and other domains, suggesting a broad distribution attempt. No scripts were extracted, but the PDF structure itself is the delivery mechanism.

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.ru/pify?keyword=snow+leopard+fact+sheet
- http://files.drsunnyimwang.com/uploads/1/3/1/3/131382141/140128.pdf
- http://nijaxe.wisteria-cottage.com/uploads/1/3/0/7/130776068/bexod.pdf
- http://files.apriloliviaroskos.com/uploads/1/3/0/7/130776343/5590168.pdf
- http://sitaza.swcfcu.org/uploads/1/3/2/3/132302780/5682287.pdf
- https://cdn.shopify.com/s/files/1/0444/3671/7735/files/air_pollution_project_in_marathi.pdf
- https://cdn.shopify.com/s/files/1/0431/6528/6566/files/90365469181.pdf
- https://cdn.shopify.com/s/files/1/0434/7353/5142/files/fuver.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72707516801.pdf
- https://cdn.shopify.com/s/files/1/0433/0445/2246/files/10019426824.pdf
- https://cdn.shopify.com/s/files/1/0429/2991/4012/files/grammar_worksheet_grade_7.pdf
- https://cdn.shopify.com/s/files/1/0434/8634/7430/files/basic_accounting_interview_questions_and_answers_download.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/25668779603.pdf
- https://cdn.shopify.com/s/files/1/0434/7078/2614/files/swarm_robotics_report_in.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_005_off000096df.bin` `e86f69ab3d757b34d77f77772b691abd25ecb7c14446fed027c07bf828fc3116`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x96DF	17944 bytes
`font_00_sfnt_off000061bf.bin` `e0db707b58de281a69852dde688796c53848642b066f1470693bb4467a23b29d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61BF	5440 bytes
`font_01_sfnt_off00007441.bin` `40fb0c1c84cc4c6eebf19cf8a25fda9c6feab096e26a14b0d23b7d3ee1e7085b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7441	10148 bytes
`font_03_sfnt_off0000b13e.bin` `0177dc9fed6e485210c38b6cb340191c30ab54e7e7caebf7152274724facc80c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB13E	3328 bytes

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