Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7ea64a49c4c1aeb…

MALICIOUS

PDF

45.2 KB Created: 2020-08-22 05:14:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e330c2bdb156d579ee73f0652fe845f SHA-1: f829d5d95e570cb90c3dd82e633644c4a3516f53 SHA-256: e7ea64a49c4c1aeb9039890646b195b1e70e542d82f12613b958911e962601bc
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass external link farm, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that leads to the redirector. This suggests the primary goal is to redirect the user to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted, and the PDF structure itself is the delivery mechanism.

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=angioedema+facial+pdf
    • http://pujiduvub.loyallyiserve.com/uploads/1/3/1/8/131856935/golewudufedujot.pdf
    • http://zewevif.booksandspoons.com/uploads/1/3/2/6/132695471/rupukur.pdf
    • http://files.pointpleasanttradingcompany.com/uploads/1/3/2/7/132740515/posaguzavax.pdf
    • https://cdn.shopify.com/s/files/1/0434/5682/3462/files/kappler_level_a_suit_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/5586/6263/files/72389862668.pdf
    • https://cdn.shopify.com/s/files/1/0431/3153/5524/files/66507184787.pdf
    • https://cdn.shopify.com/s/files/1/0439/3218/8840/files/download_blob_javascript.pdf
    • https://cdn.shopify.com/s/files/1/0432/3871/9648/files/saxixo.pdf
    • https://cdn.shopify.com/s/files/1/0434/7166/7352/files/pajolutozazodixorozopaxu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3559/8758/files/ralirifir.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gijamibumiji.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xugifewelogukepebokiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/1785/4373/files/benchmarking_case_study.pdf
    • https://cdn.shopify.com/s/files/1/0430/6331/2533/files/26073891679.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/77363931764.pdf
    • https://cdn.shopify.com/s/files/1/0438/4430/5061/files/19838732352.pdf
    • https://cdn.shopify.com/s/files/1/0434/7238/8249/files/merimen.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_off000065fc.bin
082a86dd06a0d86c64c844de284184b27ee4928113c66749ae915ae48308689e
pdf-font-stream PDF embedded font (sfnt) at offset 0x65FC 4896 bytes
font_01_sfnt_off00007685.bin
944fd16020ecf440e8ef042e561bc224d517f329a2afe203c012f5beb1a12003
pdf-font-stream PDF embedded font (sfnt) at offset 0x7685 10376 bytes
font_02_sfnt_off000099f3.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x99F3 4324 bytes