Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bc3d3102df680b8…

MALICIOUS

PDF

37.0 KB Created: 2020-09-07 23:11:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b5d75a776dd024debfabed5fe14495d9 SHA-1: 60589eac25fa9c34770db6c98920363248a5fb2a SHA-256: 1bc3d3102df680b8b28349745892024f4b74c95223cb1a382d010762d7b0d1a1
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.club/wix?keyword=adina+song+sika'. Additionally, it exhibits a PDF link farm heuristic, with numerous links hosted on cdn.shopify.com, suggesting an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes. The document body contains a call-to-action phrase and the malicious URL, reinforcing the lure to click the link.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=adina+song+sika
    • https://cdn.shopify.com/s/files/1/0437/0700/7127/files/82590558367.pdf
    • https://cdn.shopify.com/s/files/1/0430/1701/1353/files/mijoximafizuxuturav.pdf
    • https://cdn.shopify.com/s/files/1/0436/6044/3813/files/tatiziwefamojez.pdf
    • https://cdn.shopify.com/s/files/1/0428/3724/6118/files/pasitanedoxijimowiwekax.pdf
    • https://cdn.shopify.com/s/files/1/0429/0406/0071/files/59468284532.pdf
    • https://cdn.shopify.com/s/files/1/0432/6077/2515/files/79697461318.pdf
    • https://cdn.shopify.com/s/files/1/0430/2536/7194/files/7605717776.pdf
    • https://cdn.shopify.com/s/files/1/0437/6123/8168/files/tabapadivofobuwejevab.pdf
    • https://cdn.shopify.com/s/files/1/0427/9785/8972/files/metigozewasalovu.pdf
    • https://cdn.shopify.com/s/files/1/0437/9354/7426/files/tinubipusunufufikazur.pdf
    • https://static.usrfiles.com/ugd/2f7815_4c8d7ccfed044833b637c82886faada5.pdf
    • https://static.usrfiles.com/ugd/d01287_f16becec532f4c81833887abee615298.pdf
    • https://static.usrfiles.com/ugd/b54ff4_0814f7eb33c1445c9bee6e21725fc893.pdf
    • https://static.usrfiles.com/ugd/5af86b_a769c7989f5b4e50b5ba848ee63a34c3.pdf
    • https://static.usrfiles.com/ugd/b8c837_3f9da9d239c04b9490fcdb421235720b.pdf
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/60810446156.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/10610694799.pdf
    • https://cdn.shopify.com/s/files/1/0432/5598/8374/files/comparedocs_user_guide.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_off0000494d.bin
c39ad70cb0f4a3d0109f0cf03ee9008a8c67b6f8af5b7d80539e1b810e81527e
pdf-font-stream PDF embedded font (sfnt) at offset 0x494D 4916 bytes
font_01_sfnt_off00005a19.bin
7f1fc89d230b21cdf1c6da576e651cd8d1038c1fc087e797b2b55c3b3618ee60
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A19 1852 bytes
font_02_sfnt_off000062ee.bin
27fc709b93b45f013e13a843a64591a86f9f942621ff0aebc3f6c6262695138b
pdf-font-stream PDF embedded font (sfnt) at offset 0x62EE 10672 bytes