PDF malware analysis — malicious · 8ca1c5db58402794

MALICIOUS

PDF

37.8 KB Created: 2020-08-30 08:08:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ee991bb526b8d9a87e74c3b18de41509 SHA-1: 3f1abc6cf315a97b773dfbd78c68dd8da188fb80 SHA-256: 8ca1c5db584027948014b6f9d675abb6cd18c3ba1b478a25dabe3852f7db13cf

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was identified as malicious due to the presence of a critical heuristic firing for a malicious redirector link. The document body contains numerous embedded URLs, forming a link farm, with the primary malicious URL being https://ttraff.cc/wix?keyword=1zz+fe+manual. This suggests the document's purpose is to lure users to malicious sites, likely for further exploitation or credential harvesting.

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.cc/wix?keyword=1zz+fe+manual
- https://cdn.shopify.com/s/files/1/0431/5552/1695/files/66325131422.pdf
- https://cdn.shopify.com/s/files/1/0434/3549/1490/files/87173320234.pdf
- https://cdn.shopify.com/s/files/1/0434/3159/2088/files/kuxazaduziwepifafer.pdf
- https://cdn.shopify.com/s/files/1/0434/3853/8904/files/54969616362.pdf
- https://cdn.shopify.com/s/files/1/0437/3122/2677/files/voxagotepijepagademolevol.pdf
- https://static.usrfiles.com/ugd/b8c837_9b8b240113f84047861855218c3ba26b.pdf
- https://static.usrfiles.com/ugd/b8c837_1127410a71f74c759b4a302d485106ba.pdf
- https://static.usrfiles.com/ugd/b8c837_315b20d8ca77404a846b30d1aad8113f.pdf
- https://static.usrfiles.com/ugd/3e9e83_d43418bbf8ec484a9e8fd396ad0d7ecc.pdf
- https://static.usrfiles.com/ugd/b13fd1_0802ecc679464259a30ac2947de12fa6.pdf
- https://static.usrfiles.com/ugd/895bef_d8ad1c5afb0145a0a2a82c5c8328d940.pdf
- https://static.usrfiles.com/ugd/b85eb0_a11c80f8143c496aa0451aa1921fb909.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_off0000592b.bin` `48628ff26e76b49151a36c52296e8288a1297709c99fd222575da3fcc10ea95a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x592B	4644 bytes
`font_01_sfnt_off000068f2.bin` `2afd945ce54225a18ca9fddce8dd7b675b0fdebc25317b866d07d243b224d9d5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68F2	9968 bytes

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