Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3825226539628e2…

MALICIOUS

PDF

47.9 KB Created: 2020-07-29 09:40:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64b52df5ca2fa8fb14d90d01b820434b SHA-1: a00a0e6e23d2d6315cc4f434979fa683c16f475e SHA-256: f3825226539628e2374f5f0d4efa347c701cd8a0777b09224dc96b35848f78a9
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one heuristic specifically identifying a link to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, suggests a lure related to 'administrative officer duties and responsibilities pdf'. The presence of a link farm heuristic further indicates an attempt to distribute malicious content or phishing pages. 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.com/pify?keyword=administrative+officer+duties+and+responsibilities+pdf
    • http://files.andimcnair.com/uploads/1/3/1/1/131164095/wuvigivezixe_weparisegub_lamexamakem.pdf
    • http://files.carterplantationhomeowners.com/uploads/1/3/1/4/131454090/33d6dbfa1d14f2e.pdf
    • http://files.designwithwisdom.com/uploads/1/3/2/6/132680890/wamasipokuno.pdf
    • http://files.ksl-equine.com/uploads/1/3/0/7/130739945/46ac40cbe5f.pdf
    • http://files.broindustrieslighting.com/uploads/1/3/2/6/132680901/xuporimemepuf.pdf
    • http://files.carterplantationhomeowners.com/uploads/1/3/1/4/131454090/33d6dbfa1d14f2e.p
    • https://cdn.shopify.com/s/files/1/0432/7096/3350/files/zenanezikezi.pdf
    • https://cdn.shopify.com/s/files/1/0432/7541/9812/files/9878471121.pdf
    • https://cdn.shopify.com/s/files/1/0437/2388/2664/files/88590381566.pdf
    • https://cdn.shopify.com/s/files/1/0431/6643/3435/files/werosadekozagilazuti.pdf
    • https://cdn.shopify.com/s/files/1/0431/0951/5413/files/64468342325.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zavoriduxosijalas.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/miveguxuxububepevomozit.pdf
    • https://cdn.shopify.com/s/files/1/0438/6163/9318/files/43416666450.pdf
    • https://cdn.shopify.com/s/files/1/0440/1466/5878/files/77170794284.pdf
    • https://cdn.shopify.com/s/files/1/0435/7075/7791/files/17605073284.pdf
    • https://cdn.shopify.com/s/files/1/0431/7095/5415/files/61209358494.pdf
    • https://cdn.shopify.com/s/files/1/0437/7467/3057/files/poraxedi.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_off00007b10.bin
80b6d021b63840bef6b87d4373bd7e5656ef73028fea4754c9469a2a4f2578c7
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B10 5372 bytes
font_01_sfnt_off00008d33.bin
96ef6b42f33c2dbd86c69c0d462014df7fab2b2a1664cead48ee26a263b3b72f
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D33 10824 bytes