Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab955ba493ab4c65…

MALICIOUS

PDF

46.2 KB Created: 2020-08-29 12:25:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1e425b7df456c4e09b7fd0b8b39323b5 SHA-1: 4d5e2b000ea37e6496172aa2a971013b8781b492 SHA-256: ab955ba493ab4c6530e9d739ea6e504a7bfb742eb357ea9131458809322b7b06
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector infrastructure, which is a common technique for delivering malware or phishing pages. The document body, though heavily obfuscated, contains text related to "Nogales mexico pharmacies online" and the malicious URL, suggesting a lure to a potentially fraudulent or malicious site. The presence of numerous external PDF links also indicates a link farm, likely for SEO manipulation to increase visibility of the malicious content.

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.me/wix?keyword=nogales+mexico+pharmacies+online
    • https://static.usrfiles.com/ugd/b8c837_3cc702a799f440158ce52561a5081221.pdf
    • https://static.usrfiles.com/ugd/b8c837_192c92c0d559484dac893d6c930670a3.pdf
    • https://static.usrfiles.com/ugd/b8c837_161157c80ca949628ceda4d1d843ee1f.pdf
    • https://static.usrfiles.com/ugd/b8c837_3085020aa0f5482d9b86b8fde5c99ee7.pdf
    • https://static.usrfiles.com/ugd/b8c837_acc9996442cf4f24886946e74f2cdc9d.pdf
    • https://static.usrfiles.com/ugd/b8c837_885d66c6d1f9412a97cdb89371053d6b.pdf
    • https://static.usrfiles.com/ugd/b8c837_ace50ffdebbc4e34b167435effa8a64b.pdf
    • https://cdn.shopify.com/s/files/1/0431/1433/2309/files/duwovamofaxorapiz.pdf
    • https://cdn.shopify.com/s/files/1/0432/6634/3072/files/display_none_transition.pdf
    • https://cdn.shopify.com/s/files/1/0429/1385/7692/files/bejibiloxonegofas.pdf
    • https://cdn.shopify.com/s/files/1/0432/0513/2456/files/88099659376.pdf
    • https://cdn.shopify.com/s/files/1/0428/6880/1695/files/14342948600.pdf
    • https://static.usrfiles.com/ugd/b8c837_5eee86ec470147e69c592b2fc9c5d367.pdf
    • https://static.usrfiles.com/ugd/0a0016_e4828c7fd61943619d3f9673cb653d86.pdf
    • https://static.usrfiles.com/ugd/b8c837_51fe41c0722f429dbb50cc7821b345d2.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.

FilenameKindSourceSize
font_00_sfnt_off00006907.bin
753a1e0cf06b84da1786395ad3ad9a2cb6b0fb655aa21e820e35b2251ed461be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6907 5092 bytes
font_01_sfnt_off00007a32.bin
0c5626f54ac7ff0a6d297efe33008878638e14416c898450cc3295e64cc4afe1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A32 10456 bytes
font_02_sfnt_off00009dfe.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DFE 4324 bytes

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