Malicious PDF — malware analysis report

Static analysis result for SHA-256 5100035acce340f8…

MALICIOUS

PDF

44.0 KB Created: 2020-08-10 06:24:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e1e24e84f8b914f0a6139885176c207 SHA-1: 84c9deeae33e73936a329918d6649b78c1e8f1bc SHA-256: 5100035acce340f849abbdbb1a598e81e98eb5e58da25eb89bcc57ca4288b79a
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.cc/pify?keyword=british+architectural+styles+an+easy+reference+guide+pdf`. This indicates the document is designed to lure users into clicking the link, likely leading to a malicious site or download. The document also contains a large number of external links, many hosted on `cdn.shopify.com`, suggesting a link farm for SEO manipulation or to obscure the final malicious destination.

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.cc/pify?keyword=british+architectural+styles+an+easy+reference+guide+pdf
    • http://files.launasorensen.com/uploads/1/3/1/3/131398449/nofekepemupugo_supafarajo.pdf
    • http://files.victorialandis.com/uploads/1/3/0/7/130776037/3996428.pdf
    • http://files.manrug.net/uploads/1/3/2/6/132681352/5034300.pdf
    • http://files.academictranscripts.com.au/uploads/1/3/0/7/130740625/tafefuf.pdf
    • https://cdn.shopify.com/s/files/1/0435/9634/9602/files/zofelof.pdf
    • https://cdn.shopify.com/s/files/1/0439/9969/0910/files/project_analyst_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0427/8406/3654/files/tenuzepesudelo.pdf
    • https://cdn.shopify.com/s/files/1/0429/7195/5351/files/7911082055.pdf
    • https://cdn.shopify.com/s/files/1/0430/4273/4237/files/82843338838.pdf
    • https://cdn.shopify.com/s/files/1/0432/5713/5257/files/30232597227.pdf
    • https://cdn.shopify.com/s/files/1/0435/8320/9631/files/alesis_dm6_usb_kit_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/9177/9999/files/7724283073.pdf
    • https://cdn.shopify.com/s/files/1/0438/5128/4642/files/33641517545.pdf
    • https://cdn.shopify.com/s/files/1/0432/0549/2904/files/mitisexugizen.pdf
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/woburatupatuvunefilup.pdf
    • https://cdn.shopify.com/s/files/1/0429/6605/7116/files/woluwubobowajisujejos.pdf
    • https://cdn.shopify.com/s/files/1/0436/1004/6621/files/kutinazodujinopuloniz.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.

FilenameKindSourceSize
font_00_sfnt_off00005452.bin
6528b7c7b5b85e5c6436f0ba0e250a949948fc3ad546c714a0ad2200da409dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x5452 5340 bytes
font_01_sfnt_off00006680.bin
47b6128e220916be3bb38b3012ac4a8de94ff1e2e3f09a302b5e1d2b5e22082f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6680 13704 bytes
font_02_sfnt_off000091a9.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x91A9 4324 bytes