Malicious PDF — malware analysis report

Static analysis result for SHA-256 34e9c62100167de6…

MALICIOUS

PDF

46.2 KB Created: 2020-08-07 01:06:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95e14ec3a29f7b1eb733d142a03521fe SHA-1: 6b666f99e3904b53eae964b48688adc3752de6aa SHA-256: 34e9c62100167de6c38e01db84bcbf74c4a05dd69f0f859965c37930155b0e37
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, many pointing to Shopify domains, but one critical link redirects to a known malicious domain. This suggests a link farm or redirection tactic to lure users to malicious content. The document body, though heavily obfuscated, contains the malicious URL and references to PDF downloads, reinforcing the redirection attack pattern.

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=transmitancia+e+absorbancia+pdf
    • http://kepatufet.melanievanzyl.com/uploads/1/3/1/0/131070450/28e2a9.pdf
    • http://files.schombergcommunityfarm.ca/uploads/1/3/1/3/131380868/c3c31a37f78ec7.pdf
    • http://files.eliteheatbuffalo.com/uploads/1/3/1/0/131070488/bebuwijanu_wejafev_kewovesu_fizonowewulugad.pdf
    • http://files.rogerhorowitz.com/uploads/1/3/2/6/132695832/02d37e45e813f.pdf
    • https://cdn.shopify.com/s/files/1/0434/6832/5029/files/dipejoratavi.pdf
    • https://cdn.shopify.com/s/files/1/0437/2011/4331/files/84046870671.pdf
    • https://cdn.shopify.com/s/files/1/0437/0379/5877/files/87071302768.pdf
    • https://cdn.shopify.com/s/files/1/0432/1447/1330/files/41293197245.pdf
    • https://cdn.shopify.com/s/files/1/0431/6830/1212/files/furupegenitomebumopupa.pdf
    • https://cdn.shopify.com/s/files/1/0448/2033/2705/files/obs_twitch_chat.pdf
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/bovozogipanasuxaneb.pdf
    • https://cdn.shopify.com/s/files/1/0437/0766/2504/files/puravimuzomapetowim.pdf
    • https://cdn.shopify.com/s/files/1/0437/0078/1208/files/firajebe.pdf
    • https://cdn.shopify.com/s/files/1/0434/6147/6504/files/45043136216.pdf
    • https://cdn.shopify.com/s/files/1/0431/8144/1181/files/41385550926.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_off00005d78.bin
108541f3224ccfcf0973ec223eeade2c2599d30d2026aec28120fe4eb03fd2c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D78 5356 bytes
font_01_sfnt_off00006f8e.bin
866729ebc4432704d40e10a4d20ac4b2f0885d157569a8d16a3ce94b34fcf036		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F8E 11248 bytes
font_02_sfnt_off0000955f.bin
0da5b551d84a453f500a6ba8ca1adfd4400b36dae0f103b74fb712e1a4f46a36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x955F 16064 bytes

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