Malicious PDF — malware analysis report

Static analysis result for SHA-256 07006fae80325ec2…

MALICIOUS

PDF

46.9 KB Created: 2020-09-06 14:28:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c842a9d82f69f0105053c528110dde7c SHA-1: 6bca8fe4d5fd41bf4483618b199bd10efc849453 SHA-256: 07006fae80325ec26b06c123ab11853d56c1e5f08c40122306c93a5060a89888
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains a URL similar to the malicious redirector, suggesting an attempt to trick users into visiting potentially harmful sites. The presence of a large number of external PDF links further indicates a link farm, likely for SEO manipulation or to host further 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.link/wix?keyword=android+phone+tracker+using+gmail
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/6447/5299/files/zoroguzalusapo.pdf
    • https://cdn.shopify.com/s/files/1/0438/9378/4728/files/garixuseja.pdf
    • https://cdn.shopify.com/s/files/1/0462/4452/8288/files/microsoft_office_letterhead_templates_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/48040464053.pdf
    • https://cdn.shopify.com/s/files/1/0433/3967/7855/files/sivabupaxubawi.pdf
    • https://cdn.shopify.com/s/files/1/0433/1628/1512/files/the_millionaire_next_door.pdf
    • https://cdn.shopify.com/s/files/1/0440/0028/0734/files/68774673069.pdf
    • https://cdn.shopify.com/s/files/1/0431/1482/3844/files/wimusubopigesomur.pdf
    • https://cdn.shopify.com/s/files/1/0429/5085/2762/files/77541574148.pdf
    • https://cdn.shopify.com/s/files/1/0436/4327/3369/files/matamadavovujameligapiva.pdf
    • https://static.usrfiles.com/ugd/b8c837_d59cec74088c4297bda894a3449ecb75.pdf
    • https://static.usrfiles.com/ugd/9219f8_f1ca62f465574963a71c371b9476f6fa.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.

FilenameKindSourceSize
font_00_sfnt_off00007989.bin
2ec19de772937946996a1da393236e2e66d8230835bfdab867c69a46a08f328e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7989 5540 bytes
font_01_sfnt_off00008c33.bin
34623d3a539b36e938f5359ad8a6a24f6c04a81385128656ff5a5abba559aeee
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C33 10108 bytes