Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea3482d15073472a…

MALICIOUS

PDF

40.2 KB Created: 2020-08-15 04:22:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d4626a8d2c0c88b1420db6123aa42b2 SHA-1: 384383b972069bff685b7a7050ede03bf68077ab SHA-256: ea3482d15073472ac524239ebeefddce0d647fd566f2767ee558e01403f3b585
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical redirector link to 'https://ttraff.cc/pify?keyword=how+to+answer+behavioral+interview+questions'. This indicates a phishing or scam attempt, likely to lead the user to malicious content under the guise of interview preparation. No scripts were extracted, but the PDF structure and embedded URLs strongly suggest a social engineering attack.

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.cc/pify?keyword=how+to+answer+behavioral+interview+questions
    • http://kiximig.ronmb.com/uploads/1/3/1/6/131606490/3892591.pdf
    • http://files.abigailjacksondesigns.co.uk/uploads/1/3/2/6/132682142/04a1f5bf7.pdf
    • http://mubiwufu.littleromeinc.com/uploads/1/3/1/4/131453022/tezanujirejabelu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32852202686.pdf
    • https://cdn.shopify.com/s/files/1/0432/2295/8248/files/computer_architecture_and_organization_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/2263/9527/files/jogakebutosisixar.pdf
    • https://cdn.shopify.com/s/files/1/0431/2160/6818/files/sadijegunezubijujil.pdf
    • https://cdn.shopify.com/s/files/1/0434/9201/6280/files/miluzikazedivujakinedub.pdf
    • https://cdn.shopify.com/s/files/1/0432/1335/7211/files/kagumi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78682713185.pdf
    • https://cdn.shopify.com/s/files/1/0432/6404/9318/files/57430242197.pdf
    • https://cdn.shopify.com/s/files/1/0431/8658/5749/files/wuxalikepunopewibiwe.pdf
    • https://cdn.shopify.com/s/files/1/0432/2633/3351/files/javutibekib.pdf
    • https://cdn.shopify.com/s/files/1/0436/0683/5358/files/xupovalebinujeresike.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_off000061ea.bin
007cafcfb38453a31555fa118a19f076678e49c8002bfcf851eb8df04b1b583e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61EA 5152 bytes
font_01_sfnt_off0000737a.bin
7c88337851f5c2945cdebced959bdcb272bc9db98f4dee8688a52341ff6ff2ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x737A 9592 bytes

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