Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbea836bc4ce21e4…

MALICIOUS

PDF

41.8 KB Created: 2020-08-31 08:01:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4629ee93e8f4377edeba19d1b95c855a SHA-1: 433fb45fd792169a12c525d9ba8bc72cb4596b87 SHA-256: fbea836bc4ce21e47f59f061ec698b3189ce2de7439d5ffd00dbacc9918d76be
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links, https://ttraff.club/wix?keyword=ent+college+de+l%2527huppe, is flagged as a malicious redirector. This suggests the document is designed to redirect users to malicious content through a series of links, likely for phishing or malware distribution.

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.club/wix?keyword=ent+college+de+l%2527huppe
    • https://cdn.shopify.com/s/files/1/0430/7009/5521/files/vaxatiwojupuwose.pdf
    • https://cdn.shopify.com/s/files/1/0428/2079/6583/files/76124672426.pdf
    • https://cdn.shopify.com/s/files/1/0439/1475/6251/files/jeffrey_archer_best_kept_secret_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/8268/6367/files/lafokumapovudef.pdf
    • https://static.usrfiles.com/ugd/cec570_5937045c83954b4b98c3cacbfb95af82.pdf
    • https://static.usrfiles.com/ugd/b8c837_aa4956cd0a6c44faac8d2f66fbb55a3b.pdf
    • https://static.usrfiles.com/ugd/9421c8_2bec283d6ec34771adc2ddd25ac598ff.pdf
    • https://static.usrfiles.com/ugd/b8c837_3d414944c9d648fc81976bb4761fe244.pdf
    • https://cdn.shopify.com/s/files/1/0437/8276/6750/files/7975049666.pdf
    • https://cdn.shopify.com/s/files/1/0440/4002/8325/files/kaizen_event_charter_template.pdf
    • https://cdn.shopify.com/s/files/1/0437/9551/3505/files/1204922301.pdf
    • https://cdn.shopify.com/s/files/1/0433/7215/0942/files/3ds_emulator_android_apk_working.pdf
    • https://cdn.shopify.com/s/files/1/0431/9494/1603/files/sarafidemubosasujitunomo.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_off000062dd.bin
96aa841b5d46aee5dcc1d48bd316ac1cd9101eef738b896a86613909e94fe553		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62DD 4840 bytes
font_01_sfnt_off00007357.bin
b2e1c2e77d8e999f697c8004396ffae1baebf0c50ac0a15425b367bfbe07bd9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7357 11916 bytes

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