PDF malware analysis — malicious · 32aa1629af4f9f8a

MALICIOUS

PDF

44.2 KB Created: 2020-08-10 12:23:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8e8b97835085f8adb608d0b0b85da20b SHA-1: c312f7856bb6256124317b052205b1bda21b620d SHA-256: 32aa1629af4f9f8a9e0dbc43f9b9967147df113208eeb66c27dea252713782af

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with the primary redirector URL being https://ttraff.ru/pify?keyword=epidural+anaesthesia+pdf. This suggests a malicious intent, likely to manipulate search engine results or redirect users to harmful content. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy. No scripts were extracted, and the document body is heavily obfuscated, limiting further analysis of the specific lure.

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=epidural+anaesthesia+pdf
- http://files.westrivervalleyvet.com/uploads/1/3/1/1/131164067/xatotifa-xukalidifuv.pdf
- http://kosidim.dedhamcampfair.org/uploads/1/3/0/7/130775403/6568356.pdf
- http://forilefe.athenianenterprisesllc.com/uploads/1/3/0/7/130775971/5949578.pdf
- https://cdn.shopify.com/s/files/1/0427/9474/6023/files/mozememolusasom.pdf
- https://cdn.shopify.com/s/files/1/0431/0709/0581/files/97607677757.pdf
- https://cdn.shopify.com/s/files/1/0454/8227/9062/files/how_to_read_balance_sheet_of_a_company.pdf
- https://cdn.shopify.com/s/files/1/0435/7590/2363/files/wugimusagoki.pdf
- https://cdn.shopify.com/s/files/1/0435/1728/0408/files/88244010034.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28391359898.pdf
- https://cdn.shopify.com/s/files/1/0437/7142/9015/files/beast_of_burden_tab.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72438278193.pdf
- https://cdn.shopify.com/s/files/1/0432/1994/3579/files/98635407460.pdf
- https://cdn.shopify.com/s/files/1/0434/7035/6637/files/14745105516.pdf
- https://cdn.shopify.com/s/files/1/0431/6990/6844/files/28668237173.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/64989875230.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000633a.bin` `3b7e0ca454a17cde55f096e114712639a9c899245307652835186760ef07e817`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x633A	4860 bytes
`font_01_sfnt_off000073b2.bin` `00396327c85e60c2a31548b7542ac736340ad2741a9a6033a79ffb498ca3ca9a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x73B2	10068 bytes
`font_02_sfnt_off00009611.bin` `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9611	4324 bytes

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