Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6700c224e63ab00…

MALICIOUS

PDF

37.6 KB Created: 2020-08-19 17:51:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c5e9a949b77a0c267eef41ecf8fdba7 SHA-1: 2804be733fb018249cdfd4ea972ba69142b21e30 SHA-256: d6700c224e63ab00081c7f3b48263c7c3c3a457d2fb77a0f0cc9066dcffb97f4
128 Risk Score

Malware Insights

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

The PDF contains numerous links, including one identified as a malicious redirector. The document body text, though garbled, contains a URL that matches the malicious redirector, suggesting a lure to download content. The presence of a 'download button' heuristic further supports this attack pattern. The file is likely a downloader or a phishing lure.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/pify?keyword=charlotte%2527+s+web+2006+full+movie+mp4
    • http://files.rodhillportraits.com/uploads/1/3/1/6/131606720/disizubasepi_sevaraw_getopolizitovo.pdf
    • http://files.rmppublications.com/uploads/1/3/0/8/130813979/10189e.pdf
    • http://duduw.nefertariliving.org/uploads/1/3/1/4/131437130/915e7.pdf
    • https://cdn.shopify.com/s/files/1/0440/8626/3960/files/2020_aha_guidelines_for_cpr_and_ecc.pdf
    • https://cdn.shopify.com/s/files/1/0430/4375/0049/files/sipudume.pdf
    • https://cdn.shopify.com/s/files/1/0431/1387/3569/files/estudio_biblico_sobre_la_armadura_de_dios.pdf
    • https://cdn.shopify.com/s/files/1/0434/0416/5285/files/gavelelipugagelixebaro.pdf
    • https://cdn.shopify.com/s/files/1/0437/7139/6257/files/chocobo_color_calculator.pdf
    • https://cdn.shopify.com/s/files/1/0429/7415/0809/files/28909260875.pdf
    • https://cdn.shopify.com/s/files/1/0436/0349/3022/files/poultry_feed_formulation_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/3147/7922/files/china_gate_movie_songs_320kbps.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/72376703515.pdf
    • https://cdn.shopify.com/s/files/1/0432/0490/3073/files/turojore.pdf
    • https://cdn.shopify.com/s/files/1/0432/0736/0667/files/warugedoriso.pdf
    • https://cdn.shopify.com/s/files/1/0431/3920/3229/files/bolivadepuxemawixejede.pdf
    • https://cdn.shopify.com/s/files/1/0428/8918/3398/files/biochar_pyrolysis.pdf
    • https://cdn.shopify.com/s/files/1/0428/8688/9625/files/61842922454.pdf
    • https://cdn.shopify.com/s/files/1/0431/5581/6599/files/79984546023.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_off000050bd.bin
7875d4ddcbad418ec4023708c0898c2cb5a42cbbe0b4b8c8914a94ce2182fd07
pdf-font-stream PDF embedded font (sfnt) at offset 0x50BD 5888 bytes
font_01_sfnt_off000064cb.bin
68f5e03fd01df6749b761fbb948e9fd14e60935104a4afef1e5619e022c32f08
pdf-font-stream PDF embedded font (sfnt) at offset 0x64CB 10968 bytes