Malicious PDF — malware analysis report

Static analysis result for SHA-256 56b8b65c6155ba87…

MALICIOUS

PDF

44.2 KB Created: 2020-08-05 06:52:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 580f813f2db4efeec91d8557d5a244d4 SHA-1: 8377bb5901bd2ff7a0f8dfb8c7617cdda104b9cc SHA-256: 56b8b65c6155ba87cbbea1bef6fcde19c187a3a59ba39576b9dbe2d941f57c84
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the string 'lab safety quiz pdf' and the malicious URL, suggesting a social engineering lure. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on Shopify, likely to obscure the malicious redirector.

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.com/pify?keyword=lab+safety+quiz+pdf
    • http://files.barnhille4e.com/uploads/1/3/1/4/131411688/627416.pdf
    • http://files.sunsetridgeatlanesend.ca/uploads/1/3/1/4/131438299/131e7bf2ab90.pdf
    • http://files.ceenit.com/uploads/1/3/2/7/132740214/527947522414.pdf
    • https://cdn.shopify.com/s/files/1/0435/5896/1315/files/gadef.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/volobufepafolosovi.pdf
    • https://cdn.shopify.com/s/files/1/0430/3070/8385/files/google_speech_to_text_api.pdf
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/96155416072.pdf
    • https://cdn.shopify.com/s/files/1/0437/8837/0072/files/pdf_form_creator_software.pdf
    • https://cdn.shopify.com/s/files/1/0427/7266/0390/files/77896004956.pdf
    • https://cdn.shopify.com/s/files/1/0437/7647/5290/files/antidote_lyrics_migos.pdf
    • https://cdn.shopify.com/s/files/1/0433/9869/3013/files/nelly_furtardo_all_good_things.pdf
    • https://cdn.shopify.com/s/files/1/0433/4157/8399/files/compound_adjectives_list.pdf
    • https://cdn.shopify.com/s/files/1/0429/9158/3391/files/osrs_most_traded_items.pdf
    • https://cdn.shopify.com/s/files/1/0429/8221/1733/files/pufarilugigosepilise.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_off00006e0f.bin
b3d42a9b338022d5d748f654855ed627bac9821747e9569933586d7b59dabf29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E0F 5264 bytes
font_01_sfnt_off0000801c.bin
22d71253005a00d72e29818c41a0888cc6506761d45c6d5229d1fe779ca1c4b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x801C 10648 bytes

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