Malicious PDF — malware analysis report

Static analysis result for SHA-256 27668730b0614899…

MALICIOUS

PDF

48.9 KB Created: 2020-08-29 04:08:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c062d80144076a02d7b8b6ef0d49a12 SHA-1: 6a602a7ff7f7acde00b19608be0d02f6e4a9a7b6 SHA-256: 27668730b0614899023483bcb29cfd16202933c8d2cb52f948a83d5ad8a12f7d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one identified as a malicious redirector. The document body is heavily obfuscated but contains references to the malicious URL. This suggests the primary purpose is to lure users to malicious infrastructure, potentially for further exploitation or credential harvesting.

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=veniero+canevari+biografia+de+platon
    • https://static.usrfiles.com/ugd/b8c837_c01d6638b6094a0299b3f2a9bd41b394.pdf
    • https://static.usrfiles.com/ugd/b8c837_38c8f7ec8ff14a9e93db357aff1485b5.pdf
    • https://static.usrfiles.com/ugd/b8c837_dd07b4a2eac2446b842baa1a30769680.pdf
    • https://static.usrfiles.com/ugd/b8c837_f638475c55ef479c915449acb3f40f13.pdf
    • https://static.usrfiles.com/ugd/b8c837_6c35b01283ff43fba67a4d58f0c6487a.pdf
    • https://static.usrfiles.com/ugd/b8c837_7044fa1985aa484a947f36886fe0554c.pdf
    • https://static.usrfiles.com/ugd/b8c837_50128b6acb8b4899bcde04bda2b9d7cf.pdf
    • https://static.usrfiles.com/ugd/b8c837_807607779fc04239a6a21bfcf431a1df.pdf
    • https://cdn.shopify.com/s/files/1/0447/8858/0512/files/define_bailment.pdf
    • https://cdn.shopify.com/s/files/1/0431/9730/0885/files/66993432321.pdf
    • https://cdn.shopify.com/s/files/1/0430/4430/7098/files/poneginopovejijatok.pdf
    • https://cdn.shopify.com/s/files/1/0433/9413/8277/files/9235687922.pdf
    • https://cdn.shopify.com/s/files/1/0428/6555/7670/files/bundesliga_spielplan_18_19.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_off00007145.bin
561b4f0829f68a12abb325be90d31ddf3befc835a443fd0680097c9d0f90d4a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7145 5100 bytes
font_01_sfnt_off000082a6.bin
d4466cfb0d4e0a8b8baa9b1c6b6d0a8f9f34c9347dc3a930f265ca39a7ce20eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82A6 11020 bytes
font_02_sfnt_off0000a698.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA698 4324 bytes

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