Malicious PDF — malware analysis report

Static analysis result for SHA-256 dccdb9f40f7067ea…

MALICIOUS

PDF

48.4 KB Created: 2020-08-22 08:57:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6939f2e1f14d51aa6d6bdf268bc458a5 SHA-1: 4542e150564d58698d07b4d115ec73264fda7eec SHA-256: dccdb9f40f7067ea9677708ae77183efbaa12ea8dee19bd3908a14a3490b93c3
120 Risk Score

Malware Insights

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

The PDF was flagged for containing a malicious redirector link and a large number of external PDF links, suggesting a link farm or SEO manipulation tactic. The primary malicious URL identified is https://ttraff.cc/pify?keyword=cute+baby+mirchistatus. While the document body contains garbled text, the heuristics strongly indicate a malicious intent related to link distribution.

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=cute+baby+mirchistatus
    • http://files.psychedeliclens.com/uploads/1/3/1/3/131379948/7500484.pdf
    • http://files.visitwesternheritagecenter.org/uploads/1/3/2/7/132710601/rediruj.pdf
    • http://files.landerslab.org/uploads/1/3/1/4/131407704/voxesewedofixuk.pdf
    • http://xukizezir.deborahlustig.com/uploads/1/3/0/8/130874016/3012465.pdf
    • https://cdn.shopify.com/s/files/1/0435/1164/4324/files/convert_avi_towmv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45251784546.pdf
    • https://cdn.shopify.com/s/files/1/0430/8546/3713/files/narrative_analysis_thesis.pdf
    • https://cdn.shopify.com/s/files/1/0433/6694/0828/files/relemifararosovuza.pdf
    • https://cdn.shopify.com/s/files/1/0434/9450/6661/files/landscape_architecture_ebook.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99839510681.pdf
    • https://cdn.shopify.com/s/files/1/0433/6222/2232/files/47019388592.pdf
    • https://cdn.shopify.com/s/files/1/0466/3033/8725/files/32344504868.pdf
    • https://cdn.shopify.com/s/files/1/0431/3923/5997/files/lolaruvesi.pdf
    • https://cdn.shopify.com/s/files/1/0438/4840/1046/files/80785957218.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_off000072a7.bin
ff4fd1697064dfbb71fdac51a4d43fdadb567c6ef445cc074ee16573a91d4b6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72A7 4936 bytes
font_01_sfnt_off0000837d.bin
9f4842b50b32e689a8f73d833fc14fca5a4619e1ec6309192560baae4953ab7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x837D 10292 bytes
font_02_sfnt_off0000a6c2.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA6C2 4324 bytes

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