Malicious PDF — malware analysis report

Static analysis result for SHA-256 baf3eea4e5ed6620…

MALICIOUS

PDF

52.8 KB Created: 2020-08-24 00:51:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a130ef8e02b737a5709f556ab710c6a SHA-1: 7ff4cc8258371974d9baa258645c2641de45fe04 SHA-256: baf3eea4e5ed6620ac16c2589fe0af2d17adc6003f41269d3615fb8e9d1e2368
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link pointing to 'ttraff.com', which is flagged as malicious. It also includes a large number of external PDF links, suggesting a link farm or SEO abuse tactic. The document body, though heavily obfuscated, contains a reference to the malicious URL, and a visual download button heuristic was also triggered, reinforcing the lure.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=detailed+project+report+sample+pdf
    • http://files.steppingstoneschildrens.com/uploads/1/3/0/7/130739883/xirur-tinakusev.pdf
    • http://zatitiw.richardkfitzgerald.com/uploads/1/3/2/7/132741024/redesura.pdf
    • http://files.niagaraadvantage.ca/uploads/1/3/2/6/132681969/mexadugigawoboj_gapapasu.pdf
    • http://savevelu.cailliemutterback.com/uploads/1/3/1/0/131070197/fufosaniwolo.pdf
    • https://cdn.shopify.com/s/files/1/0429/2801/3475/files/fadiwuki.pdf
    • https://cdn.shopify.com/s/files/1/0439/0679/3627/files/67805601094.pdf
    • https://cdn.shopify.com/s/files/1/0437/4000/4501/files/ketulinopo.pdf
    • https://cdn.shopify.com/s/files/1/0434/0046/2503/files/agency_cost.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/11783771814.pdf
    • https://cdn.shopify.com/s/files/1/0448/6584/7458/files/canon_mp250_driver.pdf
    • https://cdn.shopify.com/s/files/1/0431/2373/6725/files/wordly_wise_3000_book_8_lesson_10_test.pdf
    • https://cdn.shopify.com/s/files/1/0434/7366/6213/files/durebupagi.pdf
    • https://cdn.shopify.com/s/files/1/0427/7541/2902/files/1431512009.pdf
    • https://cdn.shopify.com/s/files/1/0430/0419/9075/files/makalah_pluralisme_agama.pdf
    • https://cdn.shopify.com/s/files/1/0432/3082/2555/files/center_align_text_android.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_off00009115.bin
8ece6baf56785ec4699a61aa9a842ce45e61a6700716d0d756f2f4d42b4312db
pdf-font-stream PDF embedded font (sfnt) at offset 0x9115 5376 bytes
font_01_sfnt_off0000a34b.bin
7052f4fe5877ac22a628a40c90a8c4a1f01526fdd980f1c64684bd0797301336
pdf-font-stream PDF embedded font (sfnt) at offset 0xA34B 10396 bytes