Malicious PDF — malware analysis report

Static analysis result for SHA-256 27be01e979e1e7e2…

MALICIOUS

PDF

47.0 KB Created: 2020-08-01 10:20:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 664466b4304ce1ce8d36f56e0e53c9ba SHA-1: 8117a170a33cf2af797b24843c26a3294e79e4c7 SHA-256: 27be01e979e1e7e2022e2fefcda1be687e34e5f2932012402e308e7401e179f8
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=download+ie10+for+windows+7+64+bit'. This indicates the document's primary purpose is to redirect users to external content, likely malicious. The presence of a large number of external PDF links further supports a link farm or redirection strategy. The document body text also contains the same lure, reinforcing the redirection attempt.

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=download+ie10+for+windows+7+64+bit
    • http://files.empireblutc.com/uploads/1/3/1/0/131070500/6416659.pdf
    • http://files.haguild.com/uploads/1/3/1/8/131872178/67dad.pdf
    • http://files.mattrodriguezart.com/uploads/1/3/1/3/131378990/5494c056d.pdf
    • https://cdn.shopify.com/s/files/1/0438/6249/1286/files/navosijejalaredafal.pdf
    • https://cdn.shopify.com/s/files/1/0428/8049/9879/files/kenwood_dpx502bt_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/viloronijiletamuzolodoxe.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17844710077.pdf
    • https://cdn.shopify.com/s/files/1/0431/0908/9447/files/zalavuxamijafidazemafisuv.pdf
    • https://cdn.shopify.com/s/files/1/0428/0057/8723/files/40560020156.pdf
    • https://cdn.shopify.com/s/files/1/0432/8272/7067/files/75577582217.pdf
    • https://cdn.shopify.com/s/files/1/0431/9058/3458/files/harmonic_oscillator_wave_function.pdf
    • https://cdn.shopify.com/s/files/1/0430/8677/4436/files/gerugepuripemu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6676/9051/files/buselarugimafipudaba.pdf
    • https://cdn.shopify.com/s/files/1/0432/5844/5979/files/jonibamuledodukofoxex.pdf
    • https://cdn.shopify.com/s/files/1/0432/0182/2875/files/fikupoxe.pdf
    • https://cdn.shopify.com/s/files/1/0434/7920/3992/files/veladi.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_off000078f4.bin
caa20a3c75fc7d4b9c557a1cb09fc4eff12eb6ee4365e93a52e7856329ab48c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78F4 5648 bytes
font_01_sfnt_off00008c66.bin
d499142149b252463499e2d46366400be843dc409aef5bcc7b7b30dfd1cf3ff2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C66 10080 bytes

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