Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae32f669ab777027…

MALICIOUS

PDF

46.7 KB Created: 2020-08-25 10:51:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 81c3303c78efb891de7de160f21e67c1 SHA-1: b673651128e70fd8f56fbe9f668481e945f77a3e SHA-256: ae32f669ab7770274b9672b8d79d777fb03dd953ab69ebcd24772cfbd5a05a75
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=business+card+design+template+photoshop'. This URL is embedded within the document body, suggesting a social engineering lure to trick the user into clicking it. The PDF also contains a mass external link farm, with many links pointing to Shopify domains, likely for SEO manipulation or to obscure the malicious redirector.

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=business+card+design+template+photoshop
    • http://nakibazo.macclesfieldpoolleague.com/uploads/1/3/1/8/131856177/sikowusupiwutox-mirifisatasukur-zekijogadizi-vujudop.pdf
    • https://cdn.shopify.com/s/files/1/0436/3599/8880/files/92908129591.pdf
    • https://cdn.shopify.com/s/files/1/0427/4749/4567/files/vavugalinojovesukowur.pdf
    • https://cdn.shopify.com/s/files/1/0427/8566/9279/files/3370540013.pdf
    • https://cdn.shopify.com/s/files/1/0435/5643/8165/files/buberonajupixudipetapag.pdf
    • https://cdn.shopify.com/s/files/1/0440/4156/8421/files/tefixugajewulo.pdf
    • https://cdn.shopify.com/s/files/1/0437/0094/5048/files/leaks_like_a_sieve.pdf
    • https://cdn.shopify.com/s/files/1/0441/1647/6056/files/94792459506.pdf
    • https://cdn.shopify.com/s/files/1/0433/8545/4757/files/89074939619.pdf
    • https://cdn.shopify.com/s/files/1/0438/7789/2251/files/83578029645.pdf
    • https://cdn.shopify.com/s/files/1/0436/5543/0309/files/bojuxoxuwafozavi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9217/3217/files/zusej.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/
    • https://cdn.shopify.com/s/files/1/0427/4749/4567/files/vav

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007763.bin
3abe85a10a1bc6e302a81dccd111cc38c975b3efbce136985aa73b9dda56930b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7763 5536 bytes
font_01_sfnt_off000089fe.bin
084650ea00e3a9d52b5986d43908f54fa1e7e3bbd4d9259e0a04ada3f74dba63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89FE 10316 bytes

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