Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9dc77072c778176…

MALICIOUS

PDF

35.5 KB Created: 2020-08-01 06:46:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 514f40da05482ea016fe967c59398eb5 SHA-1: 49600803673c2f2bd970bf3fbebfd9683a167670 SHA-256: a9dc77072c778176fad9969e9e7aa90fa7b6554b323f006886bb7fe0e708c6d1
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.com). This suggests a link farm or redirection tactic to obscure the final malicious destination. The document body text, though heavily obfuscated, contains the primary malicious URL, indicating a lure to a potentially harmful site.

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=construction+handbook+pdf
    • http://files.farmacybotanical.com/uploads/1/3/2/3/132302973/xutitogesafa-lixoreriberexik-larowuwonubola.pdf
    • http://files.ambertennant1616.com/uploads/1/3/0/7/130776413/8341147.pdf
    • http://files.danieldavey.net/uploads/1/3/0/7/130776594/7358129.pdf
    • https://cdn.shopify.com/s/files/1/0431/7678/8117/files/50150472408.pdf
    • https://cdn.shopify.com/s/files/1/0434/8100/6244/files/financial_algebra_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0437/4485/4165/files/rojizadewivewikarit.pdf
    • https://cdn.shopify.com/s/files/1/0429/8702/8641/files/fezuzajo.pdf
    • https://cdn.shopify.com/s/files/1/0435/7108/5475/files/telataruxuvo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zotogobujadafozafinuv.pdf
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/pivapo.pdf
    • https://cdn.shopify.com/s/files/1/0429/1395/6007/files/72727750360.pdf
    • https://cdn.shopify.com/s/files/1/0429/1421/8143/files/dekuwa.pdf
    • https://cdn.shopify.com/s/files/1/0428/4658/4999/files/76388978666.pdf
    • https://cdn.shopify.com/s/files/1/0434/7543/5677/files/gezikowu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3428/0090/files/95875240441.pdf
    • https://cdn.shopify.com/s/files/1/0431/0011/0999/files/xinixed.pdf
    • https://cdn.shopify.com/s/files/1/0431/2861/9168/files/80640676624.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_off00004e3b.bin
1a81dc2d6644291935da20a53da9f19eac3c3fa25c5fe670015a2eadc15329cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E3B 5320 bytes
font_01_sfnt_off00006045.bin
2a46eaf8a82e8a10fb7a82750da9239d67d03ade0d68178bab8315e9640b0fd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6045 9624 bytes

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