PDF malware analysis — malicious · 4051e53f5431d100

MALICIOUS

PDF

38.9 KB Created: 2020-08-29 21:11:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e9dec378de78ab24de1e4b69fb131bf2 SHA-1: e6bdef63914b43c7b65feffcca151a9f028d6da7 SHA-256: 4051e53f5431d100d1a08f9e90a0da6c5c28671daaccce11e33e6ccea338d61e

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document was flagged as malicious by a machine learning classifier and contains a significant number of embedded links, many pointing to external PDF files. One of the primary links directs to 'ttraff.com', a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users to malicious infrastructure.

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/wix?keyword=cuando+alla+se+pase+lista+letra
- https://cdn.shopify.com/s/files/1/0433/9315/5237/files/wemore.pdf
- https://cdn.shopify.com/s/files/1/0429/1005/6615/files/96146631817.pdf
- https://cdn.shopify.com/s/files/1/0437/0546/7035/files/amiodarona_tiroides.pdf
- https://cdn.shopify.com/s/files/1/0433/9027/1638/files/31779487827.pdf
- https://static.usrfiles.com/ugd/aef5b7_da196d7ffc334505bb345b5ccd3329f8.pdf
- https://static.usrfiles.com/ugd/b8c837_39f7dbe0cd854a7083df6d2543a5a8f0.pdf
- https://static.usrfiles.com/ugd/b8c837_6573bfaeffc24253bee62bc962877ac2.pdf
- https://static.usrfiles.com/ugd/b8c837_869ea1663a48477aac062d4ac3bcb323.pdf
- https://static.usrfiles.com/ugd/89363e_9878e064f87f44f29d29988edafe5c00.pdf
- https://static.usrfiles.com/ugd/0dd040_f3f5d4071ab0414185804a859e68754b.pdf
- https://static.usrfiles.com/ugd/b8c837_97715f0395ef4dd58396046bfa7ab6f4.pdf
- https://static.usrfiles.com/ugd/a31856_27fd0fe9d7654e33846d13651feec844.pdf
- https://static.usrfiles.com/ugd/b8c837_c60d65537eb74b61a35721d0745921d9.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_off0000578b.bin` `2d2da7630b64fdfa9ca7b6a7813211161bdaa5a8fed4995554435cbe166f72d8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x578B	4856 bytes
`font_01_sfnt_off0000681a.bin` `ebd7713934848dd4428dbd1ce988a0755f2f971b204f203358fb05909fcaf39e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x681A	11544 bytes

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