Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2ae67d3d456a317…

MALICIOUS

PDF

44.9 KB Created: 2020-08-05 13:45:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51a3cadca18c5fb458ab6117276c8f39 SHA-1: 530631588dde0f7d3095162aac02675e45b53f1b SHA-256: e2ae67d3d456a317c419efc13cb6708577f8895362468bd25304181db5bcc82e
120 Risk Score

Malware Insights

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

The PDF contains numerous links, with one critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=agenda+example+pdf'. Another heuristic indicates a PDF link farm, suggesting a broad distribution effort. The document body is heavily obfuscated but contains the same redirector URL, reinforcing its malicious intent. No scripts were extracted, limiting the analysis of specific execution chains.

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/pify?keyword=agenda+example+pdf
    • http://files.surreyhillsmusicfestival.com/uploads/1/3/1/3/131380042/jisusikomelemem-wasojuni-jojijil.pdf
    • http://buxekedo.forestfest.co.nz/uploads/1/3/0/7/130776208/vazijuraselageni.pdf
    • http://files.theexplorelle.com/uploads/1/3/1/3/131381602/matosezav.pdf
    • https://cdn.shopify.com/s/files/1/0437/6618/6135/files/rigiraxu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9823/4270/files/jorovedifetepakerix.pdf
    • https://cdn.shopify.com/s/files/1/0435/7505/0395/files/97957579827.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45035229099.pdf
    • https://cdn.shopify.com/s/files/1/0435/8189/8913/files/62601185695.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/vojeke.pdf
    • https://cdn.shopify.com/s/files/1/0437/6775/8999/files/the_way_i_are._mp3.pdf
    • https://cdn.shopify.com/s/files/1/0432/8115/4198/files/fefozonisiwosokukum.pdf
    • https://cdn.shopify.com/s/files/1/0437/1283/9834/files/48366103604.pdf
    • https://cdn.shopify.com/s/files/1/0428/2168/1315/files/powershell_scheduled_task.pdf
    • https://cdn.shopify.com/s/files/1/0428/9573/6988/files/lefizal.pdf
    • https://cdn.shopify.com/s/files/1/0431/1141/5959/files/42954942636.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_off00007281.bin
688b85e5c06bb84787242f48f2050cd1b597794e9c9106feda64829244725eed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7281 5144 bytes
font_01_sfnt_off00008402.bin
aa1ae0a1b220f74931cb6bfcd1a78e85ab66d24fe7cb6cf658868444245c0c50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8402 10176 bytes

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