Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1e71d529513598d…

MALICIOUS

PDF

47.9 KB Created: 2020-08-29 09:27:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d71eab242253e99d4e578e264c0aab3 SHA-1: b37f6f44129dcec1525644a9b0b212330f95e37c SHA-256: a1e71d529513598d9bdea603f4efd3dd70e1c9765be69eeaae2084bd96c2da9a
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to a known malicious redirector. The document body, though heavily obfuscated, contains the same URL. This suggests the primary purpose is to redirect the user to a malicious site, likely for further exploitation or credential harvesting.

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/wix?keyword=lipstick+traces+greil+marcus+pdf
    • https://static.usrfiles.com/ugd/b8c837_4972db4326a641a2ad3352bd9405140f.pdf
    • https://static.usrfiles.com/ugd/b8c837_5b974d6ded46428b8c348d19543470f0.pdf
    • https://static.usrfiles.com/ugd/b8c837_b4c44efe4ad84f37af5feb168a81ae37.pdf
    • https://cdn.shopify.com/s/files/1/0436/4576/3744/files/zakufesabadara.pdf
    • https://cdn.shopify.com/s/files/1/0438/1720/5920/files/28805921075.pdf
    • https://cdn.shopify.com/s/files/1/0428/8783/9910/files/53423352703.pdf
    • https://cdn.shopify.com/s/files/1/0429/2519/5427/files/gastroesophageal_reflux_disease_diet.pdf
    • https://cdn.shopify.com/s/files/1/0430/6350/9143/files/angular_5_documentation.pdf
    • https://cdn.shopify.com/s/files/1/0437/7850/6909/files/oklahoma_accident_reports_online.pdf
    • https://cdn.shopify.com/s/files/1/0428/1283/3959/files/fugodekotawerovegetojot.pdf
    • https://cdn.shopify.com/s/files/1/0434/4076/7132/files/bosch_aquastop_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9072/3487/files/jabimolujebit.pdf
    • https://cdn.shopify.com/s/files/1/0434/0695/0561/files/cracked_idm_free_full_version.pdf
    • https://cdn.shopify.com/s/files/1/0435/9415/4146/files/wuvavafesojovexamakulif.pdf
    • https://cdn.shopify.com/s/files/1/0431/2009/9488/files/sixamilegozezowodewadiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/7660/7390/files/validity_psychology.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_off00007afb.bin
2fde3b134cde8889bc0c752ed6c029804a0f43328ddfa3b66989b0606357734d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AFB 5480 bytes
font_01_sfnt_off00008d8e.bin
befef01bb63f548b9c779811ad86eed886239058d6b22ed3b16c1fe6d50f31fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D8E 10684 bytes

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