Malicious PDF — malware analysis report

Static analysis result for SHA-256 54684af2006d5002…

MALICIOUS

PDF

47.2 KB Created: 2020-09-03 03:16:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 708a59b9c1075ebd7d84dd8c4f075e94 SHA-1: 749f7445dd9d308569c92feb7ecc49b480d52dfe SHA-256: 54684af2006d50026e5308528945bcc5483454c3ab54338d50e33e293ca5ef6d
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to an 'annual investment plan template' and the malicious URL, suggesting a phishing lure. The presence of numerous links to Shopify and static.usrfiles.com indicates a link farm strategy to obscure the final malicious destination.

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.me/wix?keyword=annual+investment+plan+template
    • https://cdn.shopify.com/s/files/1/0433/4462/5822/files/54719420696.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nasodidupafulad.pdf
    • https://cdn.shopify.com/s/files/1/0449/4550/6459/files/academic_english_reading_and_writing.pdf
    • https://cdn.shopify.com/s/files/1/0427/9681/0396/files/joy_division_substance.pdf
    • https://cdn.shopify.com/s/files/1/0431/7587/0613/files/kirotamibukisunupotuwaz.pdf
    • https://static.usrfiles.com/ugd/3e9e83_241351cb144d404dbb4c47a67a45f5b3.pdf
    • https://static.usrfiles.com/ugd/81b904_cd9c9696bb3742289136dce7f99ecc01.pdf
    • https://static.usrfiles.com/ugd/b8c837_2f4c05d4cd9f4809ad1a8fb468ce694b.pdf
    • https://static.usrfiles.com/ugd/b8c837_077801986ce341a8858c1d3b0c43f43f.pdf
    • https://static.usrfiles.com/ugd/df4650_3efffbe0b8a94d918fbbefef465bed5f.pdf
    • https://static.usrfiles.com/ugd/9ec29b_d25bfe05f6e448829c5461f6b53ec1d2.pdf
    • https://static.usrfiles.com/ugd/e3ff21_ad7de169f23242a9b35dec11ef36fa70.pdf
    • https://static.usrfiles.com/ugd/0e2875_5f634f7e2edb4b56bb36298d1ba16e4e.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_off00006ba7.bin
7cfabf6a91f6d665925ce6633aaec3a52c9da5ef284492aa416bb3e970a387ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BA7 4692 bytes
font_01_sfnt_off00007b7b.bin
0436d44d038e885299f2a753b4633228175abec0317a6ef6154a95f473fb37b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B7B 11784 bytes
font_02_sfnt_off0000a20c.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA20C 4324 bytes

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