Malicious PDF — malware analysis report

Static analysis result for SHA-256 47aa001af7744a83…

MALICIOUS

PDF

45.3 KB Created: 2020-09-17 03:39:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c234223a6331f77669ff1ee93b07658d SHA-1: 60db54a0782bbb7050a53d3116af75a57203b1b9 SHA-256: 47aa001af7744a83059c125148a8b5edd4662801e1d92c752ab2ae5ea9d65c00
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix?keyword=fashion+stylist+salary+in+new+york'. This URL is presented within the document body, suggesting a lure to trick the user into clicking it. The presence of a large number of external PDF links further indicates a link farm or SEO poisoning attempt. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.club/wix?keyword=fashion+stylist+salary+in+new+york
    • http://xisitox.hdihidupsehatkaya.com/uploads/1/3/0/8/130813669/zamex_xupeluvelonera_tekajuroko.pdf
    • http://nebixut.2whatknots.com/uploads/1/3/1/4/131454215/9882858.pdf
    • https://b22f93f4-9537-44cc-b82c-7fd59fcfcda4.filesusr.com/ugd/38eac1_ac17dd983b2349eab7faad8543c243c7.pdf?index=true
    • https://067d1588-8aa8-498b-83dc-60d606d5a218.filesusr.com/ugd/ce14f3_809dcbeb94334af89bd2bdbf97afc6ef.pdf?index=true
    • https://4be05858-55bd-4ce5-a486-3ef8346a9c8f.filesusr.com/ugd/99b222_69193e8b200c402fb2a9bed75abe8e5a.pdf?index=true
    • https://05023878-de27-4fe8-9382-5a52efbab8f8.filesusr.com/ugd/238140_76f822d34f2640eeb8d7645699418da4.pdf?index=true
    • https://3253cd14-ab7b-4e4b-87a4-b68a0d67e2e6.filesusr.com/ugd/d902bb_137a44ef7e6b44b6834004f2cdd02783.pdf?index=true
    • https://9d7e9a2a-decc-43fe-81c3-5606021e959d.filesusr.com/ugd/bca722_8b3362945cdc406289bf1f6a757a9f5e.pdf?index=true
    • https://c62a015b-fba4-4077-b131-0c4ea5e656ff.filesusr.com/ugd/1d64af_c03ee9c92b984d59a5caf65f66f6efa3.pdf?index=true
    • https://0858aee4-4efa-4a7c-8bb8-eb63573bed50.filesusr.com/ugd/3225da_0f9d2759ab7c426eb5b8c690a6346f72.pdf?index=true
    • https://7af81702-6e2b-4a60-98a4-d6cab21e6dea.filesusr.com/ugd/6c032c_6bafd63c45904929b0192207b5705ecb.pdf?index=true
    • https://f747464c-f1b3-49fd-b4cc-d07f995b41c9.filesusr.com/ugd/d1fcfc_fd8dec7583dc47da8d2dc2533c6ef287.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0431/3173/2125/files/35711598970.pdf
    • https://cdn.shopify.com/s/files/1/0428/1712/6556/files/career_goals_interview_questions_and_answers.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065be.bin
e71e05749a099b617d8082f5833cd716be3d46191064062fcd76f34b7e4a3c62
pdf-font-stream PDF embedded font (sfnt) at offset 0x65BE 4776 bytes
font_01_sfnt_off000075f8.bin
6d9c91999bc36076ecb38abb9b4cab810c12473bbe9315a3e4bdeaa3d106b480
pdf-font-stream PDF embedded font (sfnt) at offset 0x75F8 10972 bytes
font_02_sfnt_off00009a4b.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A4B 4324 bytes