Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1bc375985ae8510…

MALICIOUS

PDF

45.9 KB Created: 2020-08-13 22:50:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 514bde3c27bdcf89d80b62d7bce5bdb7 SHA-1: 603f6564f55d384483a2b76eef825ed41030a5b7 SHA-256: b1bc375985ae8510086328fe94837998fa2ba1acf620202ea91c41ce11c90516
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, contains text related to a 'Thailand logistics report 2018' and the malicious URL, suggesting a lure to entice users to click the link. The PDF also exhibits characteristics of a link farm, with numerous external links embedded within it.

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=thailand+logistics+report+2018
    • http://files.norwichsurgicalsociety.org.uk/uploads/1/3/0/8/130813841/9846843.pdf
    • http://files.whitecranemartialarts.com/uploads/1/3/0/7/130776485/beberavivojebun_nudifukara.pdf
    • http://files.scottyjracing.com/uploads/1/3/0/7/130738821/netid.pdf
    • http://files.lisajeanallswede.com/uploads/1/3/1/4/131453177/3416787.pdf
    • https://cdn.shopify.com/s/files/1/0435/2271/9912/files/aliens_vs_predator_vs_terminator.pdf
    • https://cdn.shopify.com/s/files/1/0430/4302/9143/files/41395930791.pdf
    • https://cdn.shopify.com/s/files/1/0433/8499/5991/files/plano_alimentar_para_diabetes_tipo_2.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zebegevuda.pdf
    • https://cdn.shopify.com/s/files/1/0429/7208/6435/files/maguf.pdf
    • https://cdn.shopify.com/s/files/1/0429/8362/0757/files/fomuvanizej.pdf
    • https://cdn.shopify.com/s/files/1/0433/1051/4334/files/relationship_marketing_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0437/0749/8647/files/jixawevotewigiwetuvoxe.pdf
    • https://cdn.shopify.com/s/files/1/0433/1352/8987/files/carbohydrates_metabolism_notes.pdf
    • https://cdn.shopify.com/s/files/1/0429/6559/8364/files/pathophysiology_of_myocardial_infarction.pdf
    • https://cdn.shopify.com/s/files/1/0429/2286/8892/files/63971120763.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zilifevuzumojewod.pdf
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/viwuwexojodagipir.pdf
    • https://cdn.shopify.com/s/files/1/0428/2155/0247/files/15163112733.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_off0000736e.bin
82884a06a440d30748765d84608e3b4838eabee20f76de2bda1de7b7314a927b
pdf-font-stream PDF embedded font (sfnt) at offset 0x736E 5804 bytes
font_01_sfnt_off00008726.bin
42699268ce20750c5bdb3ebd231124243b5590d01475bad2238fca8a7db6b785
pdf-font-stream PDF embedded font (sfnt) at offset 0x8726 10464 bytes