Malicious PDF — malware analysis report

Static analysis result for SHA-256 acad0f954631ced0…

MALICIOUS

PDF

45.2 KB Created: 2020-08-18 20:21:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b32bc292c8ad9c6f8dd0c405dd00baee SHA-1: 4bf82b2c5dd60a60cc0d3fdf72567fd18728b8f6 SHA-256: acad0f954631ced0f25db9af7cb0d084581a5f283aa7498bb3e4a798081e2ecc
128 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the presence of a link to known malicious infrastructure. The heuristic PDF_SEO_LINK_FARM indicates the PDF is part of a larger link farm, likely for SEO manipulation or to host malicious content. The presence of a 'download button' lure further supports a malicious intent to redirect the user.

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=honing+guide+angle+jig
    • http://files.angipetersonpottery.com/uploads/1/3/0/7/130738507/6567443.pdf
    • http://files.hornsbyptsa.org/uploads/1/3/1/3/131379434/bomujakurufilo.pdf
    • https://cdn.shopify.com/s/files/1/0438/2585/6669/files/mividuzuwesusom.pdf
    • https://cdn.shopify.com/s/files/1/0440/7944/8216/files/marketing_strategy_sample.pdf
    • https://cdn.shopify.com/s/files/1/0435/2425/9992/files/25885635762.pdf
    • https://cdn.shopify.com/s/files/1/0432/9940/5979/files/dubetalubusu.pdf
    • https://cdn.shopify.com/s/files/1/0441/1988/3928/files/97804664965.pdf
    • https://cdn.shopify.com/s/files/1/0431/9238/5700/files/lodowozezajaluvikut.pdf
    • https://cdn.shopify.com/s/files/1/0434/5780/6502/files/vcds_18._2_1_crack.pdf
    • https://cdn.shopify.com/s/files/1/0432/9383/5432/files/63183072446.pdf
    • https://cdn.shopify.com/s/files/1/0429/2778/4095/files/mubowegikilimatuletu.pdf
    • https://cdn.shopify.com/s/files/1/0428/5225/3863/files/57436705153.pdf
    • https://cdn.shopify.com/s/files/1/0431/0079/9140/files/fiviralono.pdf
    • https://cdn.shopify.com/s/files/1/0441/0087/8488/files/cable_gland_size_in_mm.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068c0.bin
9db103cf5fc923bbf3b02357bd5acea3a09ecaeac74038baa32474835c51f85e
pdf-font-stream PDF embedded font (sfnt) at offset 0x68C0 4556 bytes
font_01_sfnt_off00007841.bin
f993847f2f818db4db2af2a361d7415d0a7236cd8e49500dfb141d2e89c09bb5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7841 9852 bytes
font_02_sfnt_off00009a0d.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A0D 4324 bytes