Malicious PDF — malware analysis report

Static analysis result for SHA-256 adbbcc2bd5cdc347…

MALICIOUS

PDF

37.0 KB Created: 2020-08-19 16:37:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d85fe4cf662faad9d33e825e10e751f SHA-1: 38957add475fb8370531775ed4f82ea20a6a4ee0 SHA-256: adbbcc2bd5cdc3473930b956b2e6b35a00bccee2ed8f62dfe6eea5a93a1be31f
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though partially corrupted, contains text related to 'colouring sheets' and includes the malicious URL, suggesting a lure. The presence of a large number of external PDF links, many pointing to Shopify domains, indicates a potential SEO link farm strategy to distribute malicious content or traffic. The primary malicious URL is https://ttraff.com/pify?keyword=brown+bear+brown+bear+colouring+sheets.

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=brown+bear+brown+bear+colouring+sheets
    • http://files.melwycked.com/uploads/1/3/2/6/132682829/7338453.pdf
    • http://pizakage.bonafidegreengoods.com/uploads/1/3/2/3/132303195/ffd2471162.pdf
    • https://cdn.shopify.com/s/files/1/0432/2476/0484/files/topographical_anatomy_and_operative_surgery.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/29104834404.pdf
    • https://cdn.shopify.com/s/files/1/0431/7364/2389/files/letipazisu.pdf
    • https://cdn.shopify.com/s/files/1/0434/2707/0104/files/buwazopax.pdf
    • https://cdn.shopify.com/s/files/1/0447/7186/8821/files/aristotle_politics_book_3.pdf
    • https://cdn.shopify.com/s/files/1/0435/5201/4495/files/brother_prestige_30_sewing_machine_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9646434013.pdf
    • https://cdn.shopify.com/s/files/1/0437/7454/1981/files/free_niv_study_bible_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/1481/4885/files/9210922110.pdf
    • https://cdn.shopify.com/s/files/1/0432/6057/5894/files/examples_of_assets_and_liabilities.pdf
    • https://cdn.shopify.com/s/files/1/0430/9663/7597/files/lisufuworopenozuz.pdf
    • https://cdn.shopify.com/s/files/1/0429/9459/8047/files/sadopagise.pdf
    • https://cdn.shopify.com/s/files/1/0431/8851/9074/files/xewibiwaguv.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_off000053ac.bin
cbab299a573d61210183277a3018222e970479d1309820919faec7a96457350d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53AC 5340 bytes
font_01_sfnt_off000065e5.bin
1a750e18a2b9fceadf62ce1b36b99aa6fb0e69ed3fa2849b9a4ae88f56161e24		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65E5 9716 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.