Malicious PDF — malware analysis report

Static analysis result for SHA-256 584f0d7048dc8620…

MALICIOUS

PDF

40.4 KB Created: 2020-08-15 03:17:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bab24de7ad1cfffeaa7fc5fc53b90d8b SHA-1: eb7be5c320cc4fa59de1b502adec26da87e92f5a SHA-256: 584f0d7048dc862046709551ce1474835580e402ddf20b690ff2ea3dc5abf710
150 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 'https://ttraff.cc/pify?keyword=iupac+nomenclature+practice+with+answers'. This indicates the document's primary purpose is to redirect users to potentially harmful content. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility and lure unsuspecting users. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/pify?keyword=iupac+nomenclature+practice+with+answers
    • http://files.bkkperfectfashion.com/uploads/1/3/1/6/131606688/5189962.pdf
    • http://files.mylifeinorder.com/uploads/1/3/2/7/132741130/688861.pdf
    • https://cdn.shopify.com/s/files/1/0430/3290/3833/files/tropical_zoology_download.pdf
    • https://cdn.shopify.com/s/files/1/0427/3196/2535/files/55706637543.pdf
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/sc_st_atrocities_act_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/9259/0236/files/raxaxaka.pdf
    • https://cdn.shopify.com/s/files/1/0438/7880/9755/files/letonedafurodagonowafazu.pdf
    • https://cdn.shopify.com/s/files/1/0430/5669/3397/files/an_anthology_of_short_stories_by_b_walter.pdf
    • https://cdn.shopify.com/s/files/1/0436/7400/9753/files/mivaniz.pdf
    • https://cdn.shopify.com/s/files/1/0427/6797/4556/files/wemevinaxov.pdf
    • https://cdn.shopify.com/s/files/1/0437/1664/0923/files/letisepofuzaziniga.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5676577217.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005115.bin
d69116cbb0746d68df8ef54a16897b14a8c4b13e7d293c9aa08f83a0c71e833b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5115 5084 bytes
font_01_sfnt_off0000622d.bin
27890f7c9d5ef9b140b795242ce6b8052ec4e83a3b528e52f7ba8a26154dadf7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x622D 10748 bytes
font_02_sfnt_off000086a3.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86A3 4324 bytes

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