PDF malware analysis — malicious · 1c23ce161c90a191

MALICIOUS

PDF

38.0 KB Created: 2020-09-01 15:54:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ce1941e2ea94fc70717ffdf7cc7152f5 SHA-1: f23fcbb8e71eb134a35a89ab49c5389ef9aa4e0b SHA-256: 1c23ce161c90a191c724dd3043204fddbeed5ebad786510cc2db2640ac45697f

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a malicious redirector link disguised as educational content, specifically 'gcse maths past papers 2017 answers'. This link, 'https://ttraff.club/wix?keyword=gcse+maths+past+papers+2017+answers', is flagged as malicious. The document also contains a large number of embedded links to external PDFs, many hosted on static.usrfiles.com, suggesting a link farm or SEO poisoning tactic to distribute the malicious content.

Heuristics 4

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.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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.club/wix?keyword=gcse+maths+past+papers+2017+answers
- https://static.usrfiles.com/ugd/89064d_de0559a03a7447c09bd49c6b95caab86.pdf
- https://static.usrfiles.com/ugd/516793_c250274d52d94bc4af5be2db1e9d20f2.pdf
- https://static.usrfiles.com/ugd/b8c837_033e081932ba49dc855b942949ec303f.pdf
- https://static.usrfiles.com/ugd/6cfc61_69b1aa89577343f39eb0a8ba9d3ffb8e.pdf
- https://static.usrfiles.com/ugd/99a8f2_dc1cadfa79cf425d8165c61fbc68481f.pdf
- https://static.usrfiles.com/ugd/a382ee_d1edf35f9f264c8e997b2cf1584ec4d4.pdf
- https://cdn.shopify.com/s/files/1/0461/5392/4771/files/3ds_error_003_1101.pdf
- https://cdn.shopify.com/s/files/1/0432/7289/6678/files/important_books_and_authors_list.pdf
- https://cdn.shopify.com/s/files/1/0432/2508/8168/files/44777178534.pdf
- https://cdn.shopify.com/s/files/1/0437/6671/0433/files/majeleroretikufojusip.pdf
- https://cdn.shopify.com/s/files/1/0436/3105/0915/files/67465536684.pdf
- https://static.usrfiles.com/ugd/b8c837_e74b192ddd1b4f3e8f1d9e7986e3cbf2.pdf
- https://static.usrfiles.com/ugd/0cd019_acff1b2fbccf4ab2974d6f5105016ebe.pdf
- https://static.usrfiles.com/ugd/b8c837_250c8889548e4b2fb66aed7fd1bd1af5.pdf
- https://static.usrfiles.com/ugd/4b7290_124f5a326c544d71857b430cfb8d8a37.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_off0000586d.bin` `fa7bc3fd652056efb9f6e394f7a6f54aca2178f91b1e1f67c80348c729dca519`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x586D	5672 bytes
`font_01_sfnt_off00006ba5.bin` `606b489df1331a094b991aaf4f8ec92629e63a274019950b2593d03ea8650c8d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6BA5	9168 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.