PDF malware analysis — malicious · c0d67b4396e09961

MALICIOUS

PDF

42.7 KB Created: 2020-08-30 15:37:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: eab99088c99b236c0d22dd2bafb0a759 SHA-1: 4ef162c65fdefd88e754a2631e079d1d844d3ca3 SHA-256: c0d67b4396e09961476475aaceef4cdd8267b77ae2c1347495ae0c66ef7c6a1d

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Camp rock 2 movie free' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a link farm further indicates an attempt to distribute malicious content or manipulate search engine results.

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=camp+rock+2+movie+free
- https://cdn.shopify.com/s/files/1/0428/0041/4883/files/56486248095.pdf
- https://cdn.shopify.com/s/files/1/0435/6079/6318/files/sqlite_format_datetime_timezone.pdf
- https://cdn.shopify.com/s/files/1/0450/9827/0885/files/the_book_of_awakening_mark_nepo.pdf
- https://static.usrfiles.com/ugd/b8c837_9b556fd772c44d8b82230052d94cc704.pdf
- https://static.usrfiles.com/ugd/b8c837_9aa87b3a407b411b992e3fae46b32f23.pdf
- https://static.usrfiles.com/ugd/d5d855_4aa67b6890ed41309c80d9ea3503fe5b.pdf
- https://static.usrfiles.com/ugd/d5415a_ce64508501b4439b84b97a452f20d255.pdf
- https://static.usrfiles.com/ugd/b8c837_53e8f6c744ad4c91b07e0a08e93016c5.pdf
- https://cdn.shopify.com/s/files/1/0435/9477/6739/files/algebra_1_glencoe_mcgraw_hill.pdf
- https://cdn.shopify.com/s/files/1/0431/5060/6497/files/93981143775.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_off00005c34.bin` `ea7c48d21a94900883c5157ffc1a34bf42568951771f32f371cb5f23d7218a14`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5C34	4832 bytes
`font_01_sfnt_off00006cab.bin` `2e93131b74368a9373affae3f644fe5aa1dee568dcf6ee1ad76cab397aa9c768`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6CAB	10600 bytes
`font_02_sfnt_off000090a1.bin` `1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x90A1	4324 bytes

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