Malicious PDF — malware analysis report

Static analysis result for SHA-256 293859b95f715ca4…

MALICIOUS

PDF

46.8 KB Created: 2020-08-30 01:32:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 963e846de2b8de0714140c90d764e60e SHA-1: f11af82db3fd1ddb2c934aa8b06b4c45186ebe36 SHA-256: 293859b95f715ca424475f194830be5940559890487f3cc24d494e94b3637497
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, disguised with a keyword related to consumer buying behavior. This suggests a phishing or social engineering attempt to direct the user to malicious content. The PDF also contains a large number of external links, many hosted on static.usrfiles.com, indicating a link farm or redirection strategy. No scripts were extracted, but the presence of a malicious redirector URL is a strong indicator of malicious intent.

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.com/wix?keyword=types+of+consumer+buying+behavior+pdf
    • https://static.usrfiles.com/ugd/b8c837_b9dd6113809a4788a1558277233cf625.pdf
    • https://static.usrfiles.com/ugd/76156b_8e9484578e7b49cf9fe09901a6700b0e.pdf
    • https://static.usrfiles.com/ugd/822ecd_a892eb17a9754e42a0cb0e661e808618.pdf
    • https://static.usrfiles.com/ugd/6116da_da65dd5fc15144349c8ae573c0b1be5d.pdf
    • https://static.usrfiles.com/ugd/b8c837_a2f640f340c6440aaa326855df987f29.pdf
    • https://static.usrfiles.com/ugd/b8c837_8f57224e68724d1e9728378571be4fcc.pdf
    • https://static.usrfiles.com/ugd/b98abb_6fef3b10b9014f2093a46a7d9c6dc0d3.pdf
    • https://static.usrfiles.com/ugd/b8c837_5d758355a40747b78d801443d6e8c92f.pdf
    • https://static.usrfiles.com/ugd/b8c837_697aaf178e0b4b4287b4993b826fa0c9.pdf
    • https://static.usrfiles.com/ugd/b8c837_b3ac721f6209430e97512b755d429ab6.pdf
    • https://static.usrfiles.com/ugd/b8c837_ccfb870c11294a28beb93c9af028b92f.pdf
    • https://static.usrfiles.com/ugd/b8c837_5e1947b7e04447b99c3da2920385052d.pdf
    • https://static.usrfiles.com/ugd/b8c837_9e6c73a0db134c0095ad4887dd126290.pdf
    • https://cdn.shopify.com/s/files/1/0432/7361/7568/files/wimubalelutejej.pdf
    • https://cdn.shopify.com/s/files/1/0432/3845/7504/files/xosomogukax.pdf
    • https://cdn.shopify.com/s/files/1/0433/1238/2117/files/xakivanifasivixikakisab.pdf
    • https://cdn.shopify.com/s/files/1/0432/5061/4429/files/effectiveness_and_efficiency_in_good_governance.pdf
    • https://cdn.shopify.com/s/files/1/0431/2920/8992/files/convert_fractions_to_decimals_to_percentages_worksheet.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_off00006ae8.bin
a0b7d17e44ecaf228925d0a7095defdf858f67588a055fe1fef4defda8ca8d5e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE8 5588 bytes
font_01_sfnt_off00007dbb.bin
b17542904b674f5a2f26ec94070d2e57a1d2bb1019ffd906f617072e6cd4b4af
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBB 10184 bytes
font_02_sfnt_off00009ffb.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9FFB 4324 bytes