Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ba0d9b770bc5498…

MALICIOUS

PDF

45.7 KB Created: 2020-08-31 07:59:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 692fcd2d78156bff951671f6650b7455 SHA-1: 35622d75fe02a95452547c513f6d547c1dcde23e SHA-256: 7ba0d9b770bc5498f7fddb36c141af029b80ab1503c439c337be2cc0bc1f73c8
120 Risk Score

Malware Insights

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

The PDF file contains a link disguised as a service manual download, which redirects to a known malicious domain. This indicates a phishing or social engineering attack aimed at directing users to malicious infrastructure. The presence of numerous other PDF links suggests a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

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.me/wix?keyword=mazda+2+service+manual+download
    • https://static.usrfiles.com/ugd/b8c837_086b9a1029c44e43b9d0a72b51a653bb.pdf
    • https://static.usrfiles.com/ugd/fedf23_ef13cff08f1d40fe92dadcca86acca98.pdf
    • https://static.usrfiles.com/ugd/7603ae_4ccd9ad0189245668e142051ce2e7b38.pdf
    • https://static.usrfiles.com/ugd/b8c837_791fd0c048c3440aaea525b831fe53db.pdf
    • https://static.usrfiles.com/ugd/b8c837_c8c1b7c2300c4639b99ccf2f4fdb7625.pdf
    • https://cdn.shopify.com/s/files/1/0431/7121/7572/files/talebuvulexejemesake.pdf
    • https://cdn.shopify.com/s/files/1/0434/3175/5932/files/27730959665.pdf
    • https://cdn.shopify.com/s/files/1/0435/4179/0871/files/gemubisivilanux.pdf
    • https://cdn.shopify.com/s/files/1/0429/6055/2085/files/fubififep.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/dosoriputu.pdf
    • https://cdn.shopify.com/s/files/1/0429/0805/7759/files/powerflex_4.pdf
    • https://cdn.shopify.com/s/files/1/0433/5524/2651/files/acta_constitutiva_de_una_empresa_constructora.pdf
    • https://cdn.shopify.com/s/files/1/0430/0334/7097/files/lexazifukomux.pdf
    • https://cdn.shopify.com/s/files/1/0435/9897/1038/files/gitabowe.pdf
    • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/mathworksheetsland_scientific_notation_word_problems_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/9028/0609/files/besebotoreletovobofixeri.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_off00007037.bin
c23817d44a029613e14ec5fad99d37d4ee6b38dbe0b4255e2136f107008c78fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7037 5424 bytes
font_01_sfnt_off000082b4.bin
9d1391e9f0d5c8e53b78320e00e197044d1b3df49802e33f26fd493ddd813b0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82B4 12316 bytes

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