Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d685f0009220f33…

MALICIOUS

PDF

140.8 KB Created: 2020-08-31 23:18:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03fd3d7a7fbdf634c7d061bdfe69ec15 SHA-1: 281cb0430e0c691bcb33815e58cd2b988d8a1cfb SHA-256: 4d685f0009220f33273aac8707ad4c71897dc48ae12d4bebb92b6ca2c660992b
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The primary malicious URL identified is https://ttraff.com/wix?keyword=bangla+music+track, which is likely used to funnel users to further malicious content. The presence of numerous links, including one pointing to cdn.shopify.com, suggests a broad distribution effort, potentially for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9692

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=bangla+music+track
    • https://cdn.shopify.com/s/files/1/0430/2834/9089/files/kedixulamev.pdf
    • https://cdn.shopify.com/s/files/1/0430/1550/4029/files/72316105602.pdf
    • https://cdn.shopify.com/s/files/1/0430/5738/1530/files/cisco_jabber_for_windows_guide.pdf
    • https://cdn.shopify.com/s/files/1/0439/8150/4670/files/51884030190.pdf
    • https://cdn.shopify.com/s/files/1/0435/7285/4939/files/wuvaripogemanax.pdf
    • https://static.usrfiles.com/ugd/362633_83a4d450fc464b7694b9bd24329ab1e3.pdf
    • https://static.usrfiles.com/ugd/79cb75_a4a961227d0846dba2cb7ff20d593e16.pdf
    • https://static.usrfiles.com/ugd/b8c837_8a4c2a3206e74988a977902c2f6c2f71.pdf
    • https://static.usrfiles.com/ugd/8d57bd_d779869a0d884c92a4e5771c460b06a0.pdf
    • https://cdn.shopify.com/s/files/1/0429/2296/7206/files/501c3_church_exposed.pdf
    • https://cdn.shopify.com/s/files/1/0437/0304/2216/files/behavioral_marital_therapy.pdf
    • https://cdn.shopify.com/s/files/1/0439/4916/2654/files/old_man_and_the_sea_full_novel.pdf
    • https://cdn.shopify.com/s/files/1/0439/7118/2750/files/nivojurilodedifipow.pdf
    • https://cdn.shopify.com/s/files/1/0439/1731/2152/files/26929458137.pdf
    • https://cdn.shopify.com/s/files/1/0433/5376/8090/files/b_pharm_syllabus_rtmnu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0905/6668/files/62154616321.pdf
    • https://cdn.shopify.com/s/files/1/0433/5956/8027/files/dukuzuridixopenuxamanigo.pdf
    • https://cdn.shopify.com/s/files/1/0428/1057/2967/files/50109825224.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001ee7d.bin
48207061a898ba12e9f2f4e0860d82c89b5edf8b49075c06c04e6f54d6f89726
pdf-font-stream PDF embedded font (sfnt) at offset 0x1EE7D 5232 bytes
font_01_sfnt_off00020039.bin
1de4e82786156fd80b6fe1a6b058560255acf9cb79e3ac315a28580ad453602f
pdf-font-stream PDF embedded font (sfnt) at offset 0x20039 15116 bytes