Malicious PDF — malware analysis report

Static analysis result for SHA-256 906eae263cb80e8e…

MALICIOUS

PDF

44.2 KB Created: 2020-09-11 02:28:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48ca533fe865854e304e57e4f3bdfcad SHA-1: 8d235ef71511ddecc6195530ea9c78d58543bdd7 SHA-256: 906eae263cb80e8e296c5b7d14ff295c7f5ae6a9107945451d070598a8f638af
128 Risk Score

Malware Insights

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

The PDF file contains embedded links that lead to a known malicious redirector. The document body text and heuristics indicate a lure for a 'quotation template excel free', which is a common phishing pretext. The primary malicious IOC is the redirector URL, which is designed to lead users to further malicious content.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.club/wix?keyword=quotation+template+excel+free
    • http://files.laurenboehmlynch.com/uploads/1/3/1/4/131410545/a102eee4842d135.pdf
    • http://wimulov.bajadesertsoap.com/uploads/1/3/1/6/131606505/729df16b2d.pdf
    • https://cdn.shopify.com/s/files/1/0431/7796/7778/files/92282616234.pdf
    • https://cdn.shopify.com/s/files/1/0437/2663/5162/files/english_conversation_questions.pdf
    • https://cdn.shopify.com/s/files/1/0437/8315/9957/files/blokus_instructions.pdf
    • https://cdn.shopify.com/s/files/1/0437/6212/2903/files/administrao_pblica_conceitos_introdutrios.pdf
    • https://cdn.shopify.com/s/files/1/0429/4436/4710/files/fifawikigetokimedoxadabad.pdf
    • https://cdn.shopify.com/s/files/1/0432/6182/1083/files/wrong_turn_movie_telugu_dubbed.pdf
    • https://cdn.shopify.com/s/files/1/0432/4353/6552/files/tajafino.pdf
    • https://cdn.shopify.com/s/files/1/0428/1057/2966/files/biditajajupapofusizaxeko.pdf
    • https://static.usrfiles.com/ugd/538d67_ce13cf00dc8d4ab7a356e33873e30910.pdf
    • https://static.usrfiles.com/ugd/b222ea_a87090737ab846b8ac89123b33885580.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_off00006f4f.bin
2516f7344701db0836b482e22e10155ae83314975bdbc76faf7c4a94f5f630a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F4F 5112 bytes
font_01_sfnt_off000080a8.bin
c99ccbd67ca620bfd49afaa1daaf67fb12985810dbc94b696f2d7e7dc1a44166		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80A8 10332 bytes

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