Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccc5c854fb34721c…

MALICIOUS

PDF

45.1 KB Created: 2020-09-02 13:28:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4dbbd40389f8bedf8efbaf7725b2288e SHA-1: 600a92717fb8c668d420d480a78694cdeda5345a SHA-256: ccc5c854fb34721cdd34e83140b06fdd182b50dfa59265977a05762e264cab2c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body, though partially corrupted, contains text related to a 'login page' and includes the malicious redirector URL. This suggests the document is designed to trick users into clicking the link, likely leading to a phishing or malware download site.

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.link/wix?keyword=login+page+with+background+image+template
    • https://cdn.shopify.com/s/files/1/0437/4947/4453/files/76220436991.pdf
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/audiovisual_translation_book.pdf
    • https://cdn.shopify.com/s/files/1/0438/8818/1400/files/critical_care_nursing_8th_edition.pdf
    • https://static.usrfiles.com/ugd/b8c837_fcd4a41a79af447bb24ddede2b7f64e0.pdf
    • https://static.usrfiles.com/ugd/735424_2a09496632d945afafb0285ab4f74cb8.pdf
    • https://static.usrfiles.com/ugd/1a94e8_68a925b91d4c4aa09a5f7d30ec186f5b.pdf
    • https://static.usrfiles.com/ugd/3bf302_1468c516ab2b4605847eadd5ea21bf67.pdf
    • https://static.usrfiles.com/ugd/defcb2_08918517d5df4713af9c52de703d93a6.pdf
    • https://static.usrfiles.com/ugd/362633_783e560a0c7042098996045535911f20.pdf
    • https://cdn.shopify.com/s/files/1/0451/3703/5429/files/utility_bill_template_uk.pdf
    • https://cdn.shopify.com/s/files/1/0437/2971/5354/files/colitis_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0433/3400/8987/files/mcdougal_littell_algebra_2_workbook.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_off000062fc.bin
5bed178b844ba8c23d04ee5338636d0101fd862f1e288ae45ac894919d6dbefe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62FC 5548 bytes
font_01_sfnt_off000075c0.bin
d8171a8fa48b9ccea100d8c3136312326e0193f8f5d6e8855525f5522091c0f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75C0 15828 bytes

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