Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e794ec00655461a…

MALICIOUS

PDF

40.0 KB Created: 2020-08-15 12:08:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69f18aaf1b286fa35becf4e0e59e5a72 SHA-1: 45dcaf7ede012e7c4943f49b67cd1ab0eb071eb5 SHA-256: 3e794ec00655461abc0f75d905436d98a47911adea16c67cfb5f5831975d22bb
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'backup google chrome bookmarks manually' and a URL that matches the malicious redirector. This suggests a phishing or social engineering attempt to trick the user into visiting a malicious site. No scripts were extracted, limiting the analysis of further execution chains.

Heuristics 3

  • 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.
  • 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/wb?keyword=backup%20google%20chrome%20bookmarks%20manually
    • http://sogesive.billiardspress.com/uploads/1/3/1/3/131378985/butupofemiwopeda.pdf
    • http://files.ahikersview.com/uploads/1/3/2/6/132695489/8d866b944c8.pdf
    • http://nirin.mrsbrownsmusicroom.com/uploads/1/3/1/1/131164250/fokagubemud.pdf
    • https://cdn.shopify.com/s/files/1/0437/6520/3093/files/brandon_heath_love_never_fails.pdf
    • https://cdn.shopify.com/s/files/1/0432/0942/5056/files/kugidizavat.pdf
    • https://cdn.shopify.com/s/files/1/0434/3431/1832/files/zeporosesasikemorela.pdf
    • https://cdn.shopify.com/s/files/1/0456/4464/4519/files/macromolecules_carbohydrates_worksheet_answers.pdf
    • https://cdn.shopify.com/s/files/1/0437/9597/2256/files/79472273645.pdf
    • https://cdn.shopify.com/s/files/1/0429/5458/8316/files/behaviorisme_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0428/9468/8419/files/survey_of_accounting_4th_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0439/8238/9406/files/anticipatory_grief_scale.pdf
    • https://cdn.shopify.com/s/files/1/0434/1760/0165/files/jotodijipixozibenudunime.pdf
    • https://cdn.shopify.com/s/files/1/0452/4494/0445/files/88248067848.pdf
    • https://cdn.shopify.com/s/files/1/0430/4227/5485/files/lilaro.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.

FilenameKindSourceSize
font_00_sfnt_off00005cb6.bin
f706793bdd9f1f0b21b01dcd3c2278f46bf36f3de1fc985a3f6087ec578acc5a
pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB6 5704 bytes
font_01_sfnt_off00007004.bin
efc5da3cebf0374954e8c478e54b57a6780fac30da01e84b94b95359b205fa36
pdf-font-stream PDF embedded font (sfnt) at offset 0x7004 10180 bytes