Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0dc9f09f1aa36f1…

MALICIOUS

PDF

54.0 KB Created: 2020-08-31 03:10:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e1c63d7e258e42a6aa661b0685125ad SHA-1: 36ae6f3f2a0a3f1377d697f7bf928e0bb1fc24f8 SHA-256: e0dc9f09f1aa36f15c1ca7e592cee9682f5a1acdc52d582283618e848e6d5aa9
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding a significant number of external links. One of these links, 'https://ttraff.com/wix?keyword=probleme+dayal%2525C4%2525B1+%2525C3%2525B6%2525C4%25259Frenme+senaryo+%2525C3%2525B6rnekleri', is flagged as a malicious redirector. The document body contains garbled text and appears to be a lure related to learning scenarios, likely intended to mask the malicious intent of the embedded links.

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=probleme+dayal%2525C4%2525B1+%2525C3%2525B6%2525C4%25259Frenme+senaryo+%2525C3%2525B6rnekleri
    • https://cdn.shopify.com/s/files/1/0462/2771/8293/files/finish_him_rightly.pdf
    • https://cdn.shopify.com/s/files/1/0430/4545/3985/files/wijafi.pdf
    • https://cdn.shopify.com/s/files/1/0427/9864/5404/files/silk_scarf_pixelmon.pdf
    • https://cdn.shopify.com/s/files/1/0438/7074/8827/files/bodyweight_exercises_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0427/5725/9420/files/12500625889.pdf
    • https://static.usrfiles.com/ugd/b8c837_a68c19e79ac14cc0a1bd0bc883cb7970.pdf
    • https://static.usrfiles.com/ugd/8127dd_01cb83422e8a4deca293db5bac939ea3.pdf
    • https://static.usrfiles.com/ugd/4b68be_cbac8e7e35e64a0c94c3cf8e0b3182e1.pdf
    • https://cdn.shopify.com/s/files/1/0430/0485/4426/files/96116863850.pdf
    • https://cdn.shopify.com/s/files/1/0430/4545/3985/files/sosegodawikufox.pdf
    • https://cdn.shopify.com/s/files/1/0440/8023/4661/files/85075610797.pdf
    • https://cdn.shopify.com/s/files/1/0435/9087/7339/files/xolumofer.pdf
    • https://cdn.shopify.com/s/files/1/0434/2831/5293/files/cover_letter_template_for_engineering_internship.pdf
    • https://cdn.shopify.com/s/files/1/0433/6196/0091/files/aggiornamento_android_oreo_sony_tv.pdf
    • https://cdn.shopify.com/s/files/1/0429/9807/1450/files/pokemon_showdown_teams_ou.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_off000090be.bin
7fa9a9d50f4e5c04ad53f414e094e5cbc2a42bc16b51933856d4d3c8eeeac4cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90BE 5680 bytes
font_01_sfnt_off0000a3bd.bin
b58720ce17acd98cb737fec0c6bac8e8cd63877bd8ba58296dcdf75aca1f9c96		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3BD 11372 bytes

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