Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eb5496e67c13a1d…

MALICIOUS

PDF

35.7 KB Created: 2020-08-03 13:13:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4911163a288fcc8f6f8e175e5374443e SHA-1: 903de3fd04addc94c361cfc99dd76bb17cf2d9d6 SHA-256: 1eb5496e67c13a1dac98d985e1baeda0cdfbedb4bf5167035ea32121895df947
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many hosted on Shopify, designed to appear as legitimate documentation. One primary link, https://ttraff.com/wb?keyword=hpe%20nonstop%20l-series%20manuals, is identified as a malicious redirector. This suggests the document is part of a link farm or SEO poisoning campaign to drive traffic to malicious sites, disguised as technical manuals.

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/wb?keyword=hpe%20nonstop%20l-series%20manuals
    • http://files.termarkleather.com/uploads/1/3/2/6/132682665/85b01c3aa355523.pdf
    • http://files.beaconofhope-africa.org/uploads/1/3/1/4/131437655/b2a283a928e05d3.pdf
    • http://files.barnescommoncc.com/uploads/1/3/0/7/130775018/xobeganojenafi.pdf
    • https://cdn.shopify.com/s/files/1/0440/6539/0757/files/2460817580.pdf
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/54180338159.pdf
    • https://cdn.shopify.com/s/files/1/0428/6568/8743/files/82181360163.pdf
    • https://cdn.shopify.com/s/files/1/0432/4163/5997/files/91997568717.pdf
    • https://cdn.shopify.com/s/files/1/0429/9682/6261/files/tunofafovaw.pdf
    • https://cdn.shopify.com/s/files/1/0428/2246/7740/files/43623741561.pdf
    • https://cdn.shopify.com/s/files/1/0432/5765/9547/files/96521075984.pdf
    • https://cdn.shopify.com/s/files/1/0437/0654/8377/files/gefoduxizutixofafutuxi.pdf
    • https://cdn.shopify.com/s/files/1/0430/3945/7429/files/coleman_powermate_pm54-_4000_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/povokuvexonigem.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15074065918.pdf
    • https://cdn.shopify.com/s/files/1/0435/1574/0312/files/29050571526.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_off00005056.bin
781119abdf425d82a77880607c076d8a58870ceba730a6af815b75ecfbc7c1ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5056 4956 bytes
font_01_sfnt_off00006118.bin
621c527cbf6cf8e7beab57393d5fbd0c70b223972d604343d0472fe3a66f8c89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6118 9808 bytes

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