Malicious PDF — malware analysis report

Static analysis result for SHA-256 eada584ed29551f4…

MALICIOUS

PDF

44.5 KB Created: 2020-08-20 07:56:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77135fa2dfb0e1a01bc4e9e2b7e00556 SHA-1: fa33bd9c569902baa58c54ceb755e642869ddf01 SHA-256: eada584ed29551f41a1470d531bae4af9e5be9399ebfa533d463418d3dab1ddb
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with a critical heuristic identifying a malicious redirector link. The document body, though partially corrupted, includes the same redirector URL and a benign-looking Shopify URL, suggesting a lure. The primary purpose appears to be directing users to malicious infrastructure via the embedded links.

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=appointment+of+secretarial+auditor+form
    • http://tasigeba.chelseadianephotography.com/uploads/1/3/1/6/131606490/fdf88c6c046.pdf
    • https://cdn.shopify.com/s/files/1/0444/2423/3126/files/tell_me_about_yourself_answer_for_experienced_software_engineer.pdf
    • https://cdn.shopify.com/s/files/1/0429/1811/7543/files/22489890926.pdf
    • https://cdn.shopify.com/s/files/1/0437/6081/2190/files/brche_krzen_6_klasse_bungen.pdf
    • https://cdn.shopify.com/s/files/1/0437/0461/5066/files/49079685069.pdf
    • https://cdn.shopify.com/s/files/1/0428/4963/2412/files/66164699881.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pesaveput.pdf
    • https://cdn.shopify.com/s/files/1/0434/5852/7394/files/sirivagev.pdf
    • https://cdn.shopify.com/s/files/1/0448/1892/3686/files/poxazisatojojow.pdf
    • https://cdn.shopify.com/s/files/1/0430/8864/2197/files/56387789413.pdf
    • https://cdn.shopify.com/s/files/1/0431/8386/6007/files/29604397674.pdf
    • https://cdn.shopify.com/s/files/1/0437/6395/7914/files/28594188000.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_off00006266.bin
df2c040a83ba29dae080fa56783ebe0f45a84e935b7e4401ae1d3390c6687c5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6266 5172 bytes
font_01_sfnt_off000073d7.bin
d07dec8d843218fd41f730cba68c68d3413b3c0b146e13a2cd27162b087e9b52		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73D7 10236 bytes
font_02_sfnt_off000096e8.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96E8 4324 bytes

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