Malicious PDF — malware analysis report

Static analysis result for SHA-256 45304046d2289f33…

MALICIOUS

PDF

115.1 KB Created: 2020-09-21 06:51:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1b7af76d058ac8a55cca3aaccdf10359 SHA-1: 83782816fd42cda3ce4fa5ced641b8b10b8e3b31 SHA-256: 45304046d2289f33bef9e3b0f8df2bd8cb1d6bb79077d4f21dfcb755516a829b
136 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating an attempt to lead the user to a harmful site. The document body, though heavily obfuscated, contains text that appears to be a filename and a URL, reinforcing the lure. The heuristics indicate a combination of urgency and invoice lures, suggesting a phishing attempt.

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.me/wix?keyword=caroline+blues+credit+report+worksheet+2.6.1.a2.pdf
    • http://vulera.loveshoulddie.com/uploads/1/3/0/9/130969205/ruxefo.pdf
    • http://files.multiservicesuk.com/uploads/1/3/1/4/131438059/rezosus_tuvujugefos_fifaf_newumepativu.pdf
    • https://53fbefba-f78b-4c9f-ae12-b3e99a808598.filesusr.com/ugd/ef7b09_4f07986c0729442e9594aa651e10d78f.pdf?index=true
    • https://b9e0ad6f-2b76-458f-a034-a0ba62319bbd.filesusr.com/ugd/bd7df1_7d3c2d815bb641a69f11db48201947b1.pdf?index=true
    • https://f5c8faec-37df-4b2e-9946-0491cc1a5ed5.filesusr.com/ugd/e643da_fb7469f1a1b048df934b7318c49ce418.pdf?index=true
    • https://0d278480-dcd8-45fd-a451-0bfeec634f7c.filesusr.com/ugd/93c935_5aa260561a6045299a00d9d1e08e047e.pdf?index=true
    • https://2bb1d46c-1cdc-4e76-bf8b-a6b6a557a45a.filesusr.com/ugd/3db607_41aecd5d4bad48219499b50b8fe4acef.pdf?index=true
    • https://5f0d3462-d2e5-422e-9d14-789b9b38aff2.filesusr.com/ugd/41f880_787c8612127446179bffbc668a3b726b.pdf?index=true
    • https://28c0c36b-2f60-4d6d-bdbe-a821e367c6b2.filesusr.com/ugd/154db6_c43253a95cb442689ef9609a265c5024.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0438/2860/9186/files/pictionary_vocabulary.pdf
    • https://cdn.shopify.com/s/files/1/0428/9763/7535/files/dorinunaredobitepebobiwop.pdf
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/ayurvedic_cooking_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/9683/4212/files/gambar_apel_hitam_putih.pdf
    • https://cdn.shopify.com/s/files/1/0463/2251/6130/files/alien_isolation_guide_steam.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_off000178ff.bin
441a90198cb0e03744f15bb1686194fdae68cdbc44dd462462ba80e2e8bf41d7
pdf-font-stream PDF embedded font (sfnt) at offset 0x178FF 5812 bytes
font_01_sfnt_off00018cdd.bin
807f27a2dafdb672052fab35d1fd99418187e11a86df46e71c06ad71d88e9a70
pdf-font-stream PDF embedded font (sfnt) at offset 0x18CDD 16156 bytes