Malicious PDF — malware analysis report

Static analysis result for SHA-256 892050398f0dab40…

MALICIOUS

PDF

46.7 KB Created: 2020-08-30 04:49:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 508a2ec8e2399a6024936fb9c45b82a6 SHA-1: 307cafb229d4d083e3b0ec0626a48d48a2b5ab21 SHA-256: 892050398f0dab400e28f1a6491d7966ce69b02240eeaded2d71752a8ea9d570
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=compruebe+si+el+correo+electr%25C3%25B3nico+e'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The document body, though heavily corrupted, contains fragments of the same URL, reinforcing this finding. No scripts were extracted, and the file type is PDF, suggesting a social engineering lure.

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/wix?keyword=compruebe+si+el+correo+electr%25C3%25B3nico+e
    • https://static.usrfiles.com/ugd/9ff9b8_56fa647971b34e9e99535e6986b5b2b0.pdf
    • https://static.usrfiles.com/ugd/d54300_b9f6cb088811416aaf7fc71ac47dda8f.pdf
    • https://static.usrfiles.com/ugd/c7a620_33f43baa81864b63a9b8efaa468fbd52.pdf
    • https://static.usrfiles.com/ugd/b8c837_04b691418b70453aa3f836a0939145b7.pdf
    • https://static.usrfiles.com/ugd/b8c837_a054bf630dbb487b9970bd36e6cc5104.pdf
    • https://cdn.shopify.com/s/files/1/0430/9889/8592/files/handbook_of_applied_econometrics_and_statistical_inference.pdf
    • https://cdn.shopify.com/s/files/1/0440/4844/9701/files/prisms_and_pyramids.pdf
    • https://cdn.shopify.com/s/files/1/0440/6027/8936/files/codecademy_html_forms.pdf
    • https://cdn.shopify.com/s/files/1/0428/3236/3687/files/killing_eve_wiki_episode_guide.pdf
    • https://static.usrfiles.com/ugd/de3d83_14a7b95d47784ce48bfd525508b8b676.pdf
    • https://static.usrfiles.com/ugd/af0aa9_1e3e4c5ad1124f30a10a37acb9884d8d.pdf
    • https://cdn.shopify.com/s/files/1/0435/6512/1695/files/acetaminophen_iv_davis.pdf
    • https://cdn.shopify.com/s/files/1/0441/2683/0744/files/windows_7_sound_themes.pdf
    • https://cdn.shopify.com/s/files/1/0441/0369/6536/files/cost_of_discipleship_by_dietrich_bonhoeffer.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/tekafi.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_off00006cea.bin
9f1568fda75d34452ec00d97e006650c414cc6b90347e6166ddf821dca5383ca
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CEA 5048 bytes
font_01_sfnt_off00007daf.bin
daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DAF 1800 bytes
font_02_sfnt_off0000863d.bin
eb4007f09dafc31ce8456451296ef1c587a44e7453abca6e35d0503715d512c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x863D 11256 bytes