Malicious PDF — malware analysis report

Static analysis result for SHA-256 a67b0d810701d1b2…

MALICIOUS

PDF

40.4 KB Created: 2020-08-15 13:27:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ccd04d038a1673fa4231ae43db8f227 SHA-1: 045f4f622a3b01ea9927b5d83c22d92ae6a3dccc SHA-256: a67b0d810701d1b26af19698327278552156b4e03e6764b5a66f16929f3773c7
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to `https://ttraff.cc/wb?keyword=manually%20remove%20a%20domain%20controller%202008%20r2`. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many of which are hosted on Shopify. The document body, though partially corrupted, includes the same malicious URL and a technical-sounding title, suggesting a lure to trick users into clicking the malicious link. No scripts were extracted from this sample.

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/wb?keyword=manually%20remove%20a%20domain%20controller%202008%20r2
    • http://files.maverickwellnessboston.com/uploads/1/3/0/7/130775677/folivupinugalin_bazerutuwikire_dosokarasagin_xunirejejo.pdf
    • http://gexolix.ayapromo.com/uploads/1/3/0/7/130739385/pedoragidixo.pdf
    • http://files.qaradaki.com/uploads/1/3/1/1/131164236/266f0a8.pdf
    • http://wuxarut.herbanbiophiliac.com/uploads/1/3/1/6/131636644/pumopisu-leguzusesoziluw-juwulet.pdf
    • https://cdn.shopify.com/s/files/1/0438/7730/2427/files/tugukipuditedo.pdf
    • https://cdn.shopify.com/s/files/1/0437/4714/7925/files/kawom.pdf
    • https://cdn.shopify.com/s/files/1/0435/8720/7327/files/sanageziwidasinopuvos.pdf
    • https://cdn.shopify.com/s/files/1/0432/8233/3851/files/1596587246.pdf
    • https://cdn.shopify.com/s/files/1/0429/5150/8131/files/gaduwades.pdf
    • https://cdn.shopify.com/s/files/1/0430/3690/1527/files/42296730020.pdf
    • https://cdn.shopify.com/s/files/1/0428/7873/0403/files/netome.pdf
    • https://cdn.shopify.com/s/files/1/0428/5464/5916/files/39260957251.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_off000059da.bin
02c3cb2e913db83b949efc56a7366da0d286028b02cf73022e8f1904eb90ddac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59DA 5540 bytes
font_01_sfnt_off00006caa.bin
ddca5b504bcf68d0862bd0b3eeafddce037abb4aaf90099bb588441510ea2ce8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CAA 12628 bytes

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