Malicious PDF — malware analysis report

Static analysis result for SHA-256 3524c89725a7cb93…

MALICIOUS

PDF

43.5 KB Created: 2020-08-17 13:37:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b72abae1b0946729c5f16523d530caf SHA-1: 0c9d121d3dc3131d4782289e8d564246c8c697a8 SHA-256: 3524c89725a7cb93c1992d2ad579bdf7d270e984eb4e0ade60bb6536081bdcfa
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a direct link to a known malicious redirector, disguised as a consumer report. The primary malicious URL is https://ttraff.cc/pify?keyword=consumer+report+best+refrigerator+2019, which likely leads to further malicious content. The document body, though heavily obfuscated, contains references to the lure and the malicious URL.

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.cc/pify?keyword=consumer+report+best+refrigerator+2019
    • http://files.mrctests.com/uploads/1/3/1/3/131384127/fe7ca418c95183.pdf
    • http://files.maccabbeebushcraft.com/uploads/1/3/0/7/130775645/1883830.pdf
    • http://zupixu.executivepresenceexpert.com/uploads/1/3/0/7/130776445/gesafosaneka.pdf
    • https://cdn.shopify.com/s/files/1/0437/9397/3405/files/sanuduwijejofatazarawil.pdf
    • https://cdn.shopify.com/s/files/1/0434/7170/0120/files/pikogakenawiverifinunim.pdf
    • https://cdn.shopify.com/s/files/1/0430/4008/0025/files/jisati.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/rejuxi.pdf
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/9034428001.pdf
    • https://cdn.shopify.com/s/files/1/0435/5181/7883/files/black_talon_armor.pdf
    • https://cdn.shopify.com/s/files/1/0438/3296/7318/files/the_filithy_youth.pdf
    • https://cdn.shopify.com/s/files/1/0434/8408/6424/files/dajuvatikesitegonituris.pdf
    • https://cdn.shopify.com/s/files/1/0436/7794/1913/files/98733273331.pdf
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/53835457056.pdf
    • https://cdn.shopify.com/s/files/1/0434/7923/6760/files/sap_basis_training_manual.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_off00006a6d.bin
55ac9f829fd64dc015228f392557a0e10e08d22823f1431d9e3337127047a7d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A6D 5716 bytes
font_01_sfnt_off00007dc1.bin
25ae546fe23d31bb75678c83c2e2bc35e61a45dd20c266b7e78d634e5ec3568f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC1 10328 bytes

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