Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd12b8f79be615d9…

MALICIOUS

PDF

47.2 KB Created: 2020-08-09 10:47:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80cef1bf4453cfc01b76c734283e7ab6 SHA-1: 746e88fc8a8033bfb3c8b12ed0c66f2feb42d0fa SHA-256: fd12b8f79be615d96c277bbf8c10087dda5e0fc07d5b4baadc608754a909b537
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic firings indicate this PDF is part of a link farm, likely designed to distribute malicious content or phish users. The primary malicious URL identified is https://ttraff.cc/pify?keyword=albacea+pdf+peru.

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=albacea+pdf+peru
    • http://files.dennishorseshoes.com/uploads/1/3/1/0/131070202/99cd95cf434f96.pdf
    • http://files.brockportmall.com/uploads/1/3/1/0/131071312/mubexabuzugixo.pdf
    • http://deperevo.heugafoundation.org/uploads/1/3/0/8/130874493/1452820.pdf
    • http://files.shadylanefarm.store/uploads/1/3/1/4/131437953/materef-raxawubilosabik.pdf
    • http://files.mnconference.org/uploads/1/3/0/7/130738892/vogejuxov-zuwuxiz.pdf
    • https://cdn.shopify.com/s/files/1/0431/5542/3383/files/82136760026.pdf
    • https://cdn.shopify.com/s/files/1/0428/6241/1935/files/vomeba.pdf
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/cognitive_dissonance_theory.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/35034980678.pdf
    • https://cdn.shopify.com/s/files/1/0433/7565/7121/files/centrifugal_pump_performance_curve_explanation.pdf
    • https://cdn.shopify.com/s/files/1/0431/8330/8955/files/16741451795.pdf
    • https://cdn.shopify.com/s/files/1/0432/5392/4004/files/tuvafa.pdf
    • https://cdn.shopify.com/s/files/1/0433/5976/4634/files/stardew_valley_skull_cavern_elevator.pdf
    • https://cdn.shopify.com/s/files/1/0430/4686/2997/files/44181791213.pdf
    • https://cdn.shopify.com/s/files/1/0434/3067/4597/files/nujidisitilok.pdf
    • https://cdn.shopify.com/s/files/1/0432/6129/6790/files/mp3_rocket_5._0_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0440/1430/5430/files/23056578139.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_off00007bbd.bin
9cb2b1fe5743f71f743a0c807ea527b007aeb0cefc5c1e3b1a05f5106de6eed6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BBD 5100 bytes
font_01_sfnt_off00008d25.bin
f4240cd78dc3b74ea7c93889ebfff97fd6eaea2dd4a95bd100446c1a432d672c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D25 10360 bytes

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