Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee502bfcc58ae13e…

MALICIOUS

PDF

50.2 KB Created: 2020-08-16 15:10:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9b2a141919969752a83f250c15d70c71 SHA-1: 8f2ea5dc74a470690a6eaeddf9046c008386dca8 SHA-256: ee502bfcc58ae13e0259ce6cc7d2df490c37286de0ee14f24e13875b8de7d939
160 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the string 'https://ttraff.cc/pify?keyword=apache+ant++salesforce', indicating a lure. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests this PDF might be a precursor to delivering a password-protected archive, further increasing the risk.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=apache+ant++salesforce
    • http://files.enosexecutiveteam.com/uploads/1/3/1/4/131436978/6364980.pdf
    • http://files.huckleberryhideout.com/uploads/1/3/1/4/131437987/9749361.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/taridulozomoxekolakinuku.pdf
    • https://cdn.shopify.com/s/files/1/0430/9486/8122/files/noxosubowoz.pdf
    • https://cdn.shopify.com/s/files/1/0436/8069/4437/files/ukulele_tabs_songs.pdf
    • https://cdn.shopify.com/s/files/1/0436/4291/2926/files/anova_test_in_spss.pdf
    • https://cdn.shopify.com/s/files/1/0437/3302/4929/files/st_cyril_of_alexandria.pdf
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/11105369706.pdf
    • https://cdn.shopify.com/s/files/1/0429/1713/4499/files/ayurvedic_gujarati_book.pdf
    • https://cdn.shopify.com/s/files/1/0436/1850/0765/files/bibanif.pdf
    • https://cdn.shopify.com/s/files/1/0432/3573/7755/files/viraladunagewegupij.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_off00006f48.bin
f9afcf3a40be69003adbbd055ab9acfc7e028bd92bcff4a9eb61fb718bd5bdeb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F48 5092 bytes
font_01_sfnt_off00008083.bin
e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8083 1800 bytes
font_02_sfnt_off00008911.bin
5632848372e1a756167191174ff65e265d0b358fe17be592f22167c2deb389f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8911 15584 bytes

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