PDF malware analysis — malicious · 643c397d13e12cff

MALICIOUS

PDF

45.5 KB Created: 2020-08-15 05:31:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 2fdbf86dc19c0da20ad628f09bd33241 SHA-1: 6fedf2b12e4417932ac5d99ae2ac1b55bef0b928 SHA-256: 643c397d13e12cff828788e410b04cb1d18ca35ef3bf582f41cb9c6b0cd0fc80

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF file contains a significant number of embedded links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, also contains the URL for the malicious redirector. This suggests an attempt to lure users to malicious content or for SEO manipulation purposes.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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.com/wb?keyword=monumento%20continuo%20superstudio%20pdf
- http://simig.madrassi.org/uploads/1/3/1/4/131483254/2924822.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0436/5477/4949/files/free_bootstrap_templates_for_corporate_website.pdf
- https://cdn.shopify.com/s/files/1/0434/0544/3233/files/ergonomics_book_free_download.pdf
- https://cdn.shopify.com/s/files/1/0430/9689/9733/files/wumukob.pdf
- https://cdn.shopify.com/s/files/1/0440/7663/0181/files/47502068517.pdf
- https://cdn.shopify.com/s/files/1/0431/8828/9694/files/pasijasewevupigaxuwezulo.pdf
- https://cdn.shopify.com/s/files/1/0434/7795/8816/files/titadeduxonoxeja.pdf
- https://cdn.shopify.com/s/files/1/0433/5996/1239/files/62698745379.pdf
- https://cdn.shopify.com/s/files/1/0433/1280/8091/files/ap_transco_ae_notification_2020.pdf
- https://cdn.shopify.com/s/files/1/0428/5241/7692/files/cateye_volt_700_manual.pdf
- https://cdn.shopify.com/s/files/1/0435/6558/0437/files/joint_probability_distribution_function.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/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007216.bin` `4d51b9cbff063cc45cfbfca92419aaf5cea2b1e42bcdae753027a593748b335f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7216	5064 bytes
`font_01_sfnt_off00008343.bin` `79b476f65d78d4fb342da5dc1839ca3d0e5252eaa5dab0afcf64c18a75789370`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8343	11356 bytes

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