Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5afa3beb0e19ade…

MALICIOUS

PDF

43.2 KB Created: 2020-08-21 10:53:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ce313d80c01225014f171582d07362a SHA-1: 07aa9e9dc0e984cdf5d0a482b9b7c8ebce008b40 SHA-256: a5afa3beb0e19ade072994e0984bd6d5abe31d13e943b58385755aa3c2b532b0
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, a common tactic for SEO poisoning and driving traffic to malicious sites. One critical heuristic identified a link to a known malicious redirector, `https://ttraff.cc/pify?keyword=how+many+abortions+are+performed+annually+worldwide`. The document body, though partially corrupted, contains this same URL, suggesting the document's primary purpose is to trick users into visiting this malicious link. No scripts were extracted from this sample.

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=how+many+abortions+are+performed+annually+worldwide
    • http://rabom.bsl-sc.co.uk/uploads/1/3/2/7/132741508/xutalebegogakepona.pdf
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/bodybuilding_bulking_diet.pdf
    • https://cdn.shopify.com/s/files/1/0437/6530/1400/files/functions_of_the_south_african_reserve_bank.pdf
    • https://cdn.shopify.com/s/files/1/0435/8009/6667/files/cadbury_worm_case_study.pdf
    • https://cdn.shopify.com/s/files/1/0433/8240/7318/files/nedokaguleboba.pdf
    • https://cdn.shopify.com/s/files/1/0432/5860/9817/files/browser_open_blocked_website_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/7108/6492/files/vezerumevumesebiwo.pdf
    • https://cdn.shopify.com/s/files/1/0429/4131/7276/files/dokugudodowozefiro.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8839/files/86289083784.pdf
    • https://cdn.shopify.com/s/files/1/0430/6042/8962/files/nolilasekenegirabilikox.pdf
    • https://cdn.shopify.com/s/files/1/0430/1740/4573/files/advanced_excel_2016_exercises_with_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0431/5794/6522/files/temeni.pdf
    • https://cdn.shopify.com/s/files/1/0435/4162/7029/files/evangelismo_dinamico_luisa_walker.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_off00006985.bin
b8f5c8008f85df1caa039dcdf97d301917d90e89d0e30e15cbd51a95d3e2f3c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6985 5480 bytes
font_01_sfnt_off00007c15.bin
55b5708f8182a181c9503295ac55af4cce138c1998c8a7b914343293af64be38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C15 10372 bytes

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