Malicious PDF — malware analysis report

Static analysis result for SHA-256 394feb88c144fde8…

MALICIOUS

PDF

39.9 KB Created: 2020-08-18 16:22:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff3546e706e24f743e50379b87e99761 SHA-1: c98b6801300cc0fb09125cecd833b52233be5c56 SHA-256: 394feb88c144fde8f2eafeab07099264aed30f74e4ce7c12ea5f556c2c2af6f3
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=bestsongs.+pk+apk+free'. This indicates the document's primary purpose is to lure the user to this malicious URL. Additionally, a PDF link farm heuristic was triggered, suggesting the document is designed to host numerous external links, likely for SEO manipulation or to distribute further malicious content. The document body contains the malicious URL and other PDF links, reinforcing the redirection attempt.

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=bestsongs.+pk+apk+free
    • http://files.opengeography.org/uploads/1/3/1/6/131636890/1185870.pdf
    • http://files.proseandcommas.org/uploads/1/3/1/4/131437438/jamobetose-gozavupolesogo.pdf
    • http://files.buildingleadersforsuccess.com/uploads/1/3/1/4/131437778/88f9d.pdf
    • https://cdn.shopify.com/s/files/1/0427/3229/0215/files/63141638114.pdf
    • https://cdn.shopify.com/s/files/1/0432/8508/6374/files/zagamupomanok.pdf
    • https://cdn.shopify.com/s/files/1/0428/5536/6822/files/sekiro_pot_noble.pdf
    • https://cdn.shopify.com/s/files/1/0428/0087/3631/files/basirazikax.pdf
    • https://cdn.shopify.com/s/files/1/0433/0265/0014/files/22216514014.pdf
    • https://cdn.shopify.com/s/files/1/0438/5511/8501/files/macbeth_synopsis.pdf
    • https://cdn.shopify.com/s/files/1/0448/0250/6909/files/rogue_5e_multiclass.pdf
    • https://cdn.shopify.com/s/files/1/0430/9699/8041/files/dojuk.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/titigabibuzumazavuxi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/objective_c_constants.pdf
    • https://cdn.shopify.com/s/files/1/0430/4420/8789/files/fisaviduf.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_off00005c6e.bin
48bf5421ea3838c43719895670b33b2052f1f110fdffd8b5fbb19960ce86a62a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C6E 5184 bytes
font_01_sfnt_off00006e32.bin
8cf8dc6ec8b43a7a1634e9ca303fcaed4c04da0cf8cd2a09273e7216bc25e357		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E32 10768 bytes

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