Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd34a9d3f844f43f…

MALICIOUS

PDF

40.7 KB Created: 2020-08-16 16:24:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f6ca2cfb1d75a2b5ab11f79428c6840 SHA-1: 73d39934c1e949d2f782c4586ef84ce45378512e SHA-256: cd34a9d3f844f43f52064a0d7b33a065e0bee54f6bae9fadf10a17727f15a206
120 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=intruder+netflix+parents+guide'. This indicates a social engineering lure designed to redirect users to malicious infrastructure. The document also exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com, further supporting the malicious intent of driving traffic to potentially harmful sites.

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=intruder+netflix+parents+guide
    • http://files.ogreartwork.com/uploads/1/3/0/7/130740193/8384541.pdf
    • https://cdn.shopify.com/s/files/1/0437/1483/8679/files/tijinodewuru.pdf
    • https://cdn.shopify.com/s/files/1/0428/4982/9023/files/4107805856.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8171/files/backstepping_control_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0427/6961/2966/files/encyclopedia_of_buddhism_malalasekera.pdf
    • https://cdn.shopify.com/s/files/1/0432/5136/8104/files/video_editing_software_windows_free.pdf
    • https://cdn.shopify.com/s/files/1/0454/0166/9800/files/vocabulary_for_ielts_intermediate_download.pdf
    • https://cdn.shopify.com/s/files/1/0427/7652/7014/files/devulirelisufomafo.pdf
    • https://cdn.shopify.com/s/files/1/0438/5269/3669/files/bukojusof.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_off000062a0.bin
d7dc1fc46fa69e04c7ea3ffaac0a1b045e7c27fc3557293dff4cfcbbe4db5a4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62A0 5212 bytes
font_01_sfnt_off00007468.bin
a28ab8c7f31c5c53455a69e9adb386f2859e91af4b92e384edd8de58ec86a023		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7468 9980 bytes

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