Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa66052d801b2a26…

MALICIOUS

PDF

40.9 KB Created: 2020-08-30 17:19:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ebb681888200ab595e129fb3eb07e46 SHA-1: 281651cd461d24a92a65449a93db80839a734955 SHA-256: fa66052d801b2a2672e79dabf25b92860b020d3e3d84f16c2f46785606f34760
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a malicious redirector link, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'Blanket purchase order in sap mm pdf' and the malicious URL. This suggests a phishing attempt to lure users into clicking the link, likely for credential harvesting or further malware delivery. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, further supporting a malicious intent.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.ru/wix?keyword=blanket+purchase+order+in+sap+mm+pdf
    • https://static.usrfiles.com/ugd/314c35_488a0ce9e6b144d9bf6beb0ca46d71fc.pdf
    • https://static.usrfiles.com/ugd/a382ee_0baec2dc224b41e3b2284d71d869fe13.pdf
    • https://static.usrfiles.com/ugd/b8c837_935a8343ec544018a841e5ed105e3f9f.pdf
    • https://cdn.shopify.com/s/files/1/0431/5706/1788/files/gesojowalaxazoduban.pdf
    • https://cdn.shopify.com/s/files/1/0459/8887/2351/files/34532193361.pdf
    • https://cdn.shopify.com/s/files/1/0432/7240/5157/files/sapib.pdf
    • https://cdn.shopify.com/s/files/1/0431/9110/7742/files/sabibuxelupezapesosowar.pdf
    • https://cdn.shopify.com/s/files/1/0429/7624/7971/files/73685806180.pdf
    • https://cdn.shopify.com/s/files/1/0429/5688/2086/files/44217019083.pdf
    • https://cdn.shopify.com/s/files/1/0428/9606/4671/files/32315495772.pdf
    • https://cdn.shopify.com/s/files/1/0428/8095/8617/files/99639723927.pdf
    • https://static.usrfiles.com/ugd/90c678_c92dde325cab4c9a8107859aa9f4a9f2.pdf
    • https://static.usrfiles.com/ugd/b8c837_b21ca235e8194973bb7ef16fbebfd6c1.pdf
    • https://static.usrfiles.com/ugd/a01749_5eae73801b4f42158b1564491acd758b.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_off00006257.bin
00eaa87ec5a74bcebdafdc63f1aff7cde6c1223c5d09a82829ea4abc097ee4e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6257 5508 bytes
font_01_sfnt_off000074dc.bin
e7fe7bb0a90d7716785e94fb4cec1f229e5addd4f16363f20715d401b16903a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74DC 9824 bytes

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