PDF malware analysis — malicious · 38297ff9fba2757c

MALICIOUS

PDF

52.6 KB Created: 2020-08-07 16:28:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c355a279592c09a4fd58aa24d6a4b773 SHA-1: 27de571f56e032df74b09ab2bf058d926a86cb41 SHA-256: 38297ff9fba2757c178f530bba468c4be6ae10614677ae9a32b8e227759884f7

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass external link farm, with many links pointing to Shopify domains hosting PDF files, likely as a SEO spam or link farm tactic. One prominent link, 'https://ttraff.cc/pify?keyword=class+12+cbse+chemistry+book+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains similar text and URLs, reinforcing the lure to click on the malicious link. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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=class+12+cbse+chemistry+book+pdf
- http://files.thesurge.cc/uploads/1/3/1/4/131483053/dodivo.pdf
- http://files.ourcluster.org/uploads/1/3/2/8/132814030/paseximizamima_libin_gexefitapuwoz.pdf
- http://files.staceysandiegotherapy.com/uploads/1/3/1/6/131637374/jipemumegusadufigev.pdf
- https://cdn.shopify.com/s/files/1/0436/6965/1606/files/gogijisup.pdf
- https://cdn.shopify.com/s/files/1/0437/6897/1418/files/49093705144.pdf
- https://cdn.shopify.com/s/files/1/0429/5580/0739/files/seropikuselapotevisewi.pdf
- https://cdn.shopify.com/s/files/1/0431/6574/5314/files/peavey_vypyr_manual.pdf
- https://cdn.shopify.com/s/files/1/0446/1946/4867/files/bsc_maths_textbook.pdf
- https://cdn.shopify.com/s/files/1/0433/8991/1196/files/vomemikevolokuvi.pdf
- https://cdn.shopify.com/s/files/1/0430/1455/3763/files/ruwivedomatilafe.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuxovozukirofavekejob.pdf
- https://cdn.shopify.com/s/files/1/0432/6014/9910/files/fubagexefofabekewe.pdf
- https://cdn.shopify.com/s/files/1/0430/2353/2195/files/gatalobobod.pdf
- https://cdn.shopify.com/s/files/1/0436/6244/2661/files/39379252549.pdf
- https://cdn.shopify.com/s/files/1/0429/3646/7623/files/amiodarona_biosintetica_bula.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_off000081ed.bin` `dece63927a44d146e376071ed38d10cc116de37be95a2fe7ec4a14db761e077a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x81ED	5792 bytes
`font_01_sfnt_off0000957a.bin` `a9ec8c41503cbc0fea5f964c745e7b41cc941ca4de7ae0fcf08ff9de324e61c3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x957A	10084 bytes
`font_02_sfnt_off0000b851.bin` `aa0141ef1983ca6a1e75555c5f201f5e267198d67577c6d264f88900ae5ec0d3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB851	3260 bytes

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