Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bfb80f5f9223354…

MALICIOUS

PDF

73.2 KB Created: 2020-07-21 20:53:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 07a51c85756e66187d1860dcc317832f SHA-1: f3182be3605ac0e37b3ad5855e26f5e9e2e78a36 SHA-256: 1bfb80f5f9223354fbf57e47bc4fb559d2e9680d95c4ce047edf50c49b4d0d9f
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.001 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious payload. The document also contains a heuristic firing for an urgency lure, suggesting the content is designed to prompt immediate action. The PDF is part of a link farm, with many links pointing to Shopify-hosted PDFs, indicating a potential SEO poisoning or spam campaign. No scripts were extracted from this sample.

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.
  • 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
  • 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/wb?keyword=ace%20inhibitors%20mechanism%20of%20action%20pdf
    • http://files.groomroomunleashed.com/uploads/1/3/0/7/130739369/xuwamu.pdf
    • http://files.thecentreofthecosmos.com/uploads/1/3/2/8/132814977/6eb456ea4d.pdf
    • http://files.compressfirstky.com/uploads/1/3/1/4/131453998/6941965.pdf
    • http://files.leroyandhelenenterprises.com/uploads/1/3/0/9/130969532/savusipeg.pdf
    • http://files.ellwhisperer.com/uploads/1/3/1/4/131406841/wojimuxuj_kasowenemaridu.pdf
    • https://cdn.shopify.com/s/files/1/0428/5785/7187/files/7513325285.pdf
    • https://cdn.shopify.com/s/files/1/0427/9320/5916/files/77067217269.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/mivetevur.pdf
    • https://cdn.shopify.com/s/files/1/0428/5209/0022/files/18972395244.pdf
    • https://bozekipujo.files.wordpress.com/2020/07/tapatitazodefijukazit.pdf
    • https://dolatokonaze.files.wordpress.com/2020/06/15190008500.pdf
    • https://zosoborazudu.files.wordpress.com/2020/06/46583104000.pdf
    • https://wazakifi.files.wordpress.com/2020/07/73918531939.pdf
    • https://xuledatit.files.wordpress.com/2020/07/33362616615.pdf
    • https://cdn.shopify.com/s/files/1/0429/6278/0311/files/zilofapafiseridasisituf.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/15138334831.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/duzibuwusupamodugibeboz.pdf
    • https://cdn.shopify.com/s/files/1/0432/0890/0772/files/xunufupe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42539854631.pdf
    • https://cdn.shopify.com/s/files/1/0432/2017/2957/files/pelenibuvufemejasapinu.pdf
    • https://cdn.shopify.com/s/files/1/0427/8904/4383/files/pulosirejitu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2553/8980/files/telojid.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_off0000dc2a.bin
746ec05595cc72d811a7a69d40a8e339540f5433a0e5c90d10b46ecbee459723		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDC2A 5280 bytes
font_01_sfnt_off0000edd0.bin
c6efaea7fd4de7ffda85f8a5602eac3c663c5403db4fb263de8a36676057d650		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD0 12772 bytes

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