Malicious PDF — malware analysis report

Static analysis result for SHA-256 f30279385fd625be…

MALICIOUS

PDF

77.6 KB Created: 2020-08-09 21:38:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f23e717dd7212eeb8b268d56d375e8a6 SHA-1: f667114bfac026b4722cb7f01a61ca2823c1855e SHA-256: f30279385fd625be2003f9725d46345c3c0927d033596e6f38143cab85623049
130 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure, which is designed to lead users to malicious content. The document body, though heavily obfuscated, contains text related to a medication, likely a lure to encourage clicks. The presence of numerous external PDF links further indicates a link farm or redirection strategy.

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/pify?keyword=acetilcisteina+xarope+infantil+bula+pdf
    • http://files.scandinavianschool.be/uploads/1/3/2/7/132740620/wufexolewimakip.pdf
    • http://divof.elbowtree.com/uploads/1/3/0/7/130738837/4f48b2.pdf
    • http://files.amyshomedaycare.com/uploads/1/3/0/9/130969683/lebajexazaxajedowu.pdf
    • http://files.chriskelsey.com/uploads/1/3/1/4/131407012/7342255.pdf
    • http://jodizux.johnkilkennypercussion.com/uploads/1/3/0/8/130813612/lodizon-kevasogube-jadewifis-retinebidije.pdf
    • https://cdn.shopify.com/s/files/1/0431/5129/4628/files/meez_hack_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/0718/0954/files/84340162386.pdf
    • https://cdn.shopify.com/s/files/1/0433/9813/5966/files/renixarasafov.pdf
    • https://cdn.shopify.com/s/files/1/0435/8157/1227/files/wajodoworaminix.pdf
    • https://cdn.shopify.com/s/files/1/0440/7712/1686/files/watch_berserk_2016.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pejuzesuloroxutebed.pdf
    • https://cdn.shopify.com/s/files/1/0433/0238/7867/files/larson_calculus_9th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tugerivedisabuv.pdf
    • https://cdn.shopify.com/s/files/1/0436/2990/4032/files/bangalore_pin_code_list_area_wise_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/8839/6959/files/58654151078.pdf
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/ken_park_full_movie.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kewosa.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_off0000ed37.bin
52b883beea59a3cf9568607b4cfed178f9dadddd497bb9a29605fa2d614c1732
pdf-font-stream PDF embedded font (sfnt) at offset 0xED37 5348 bytes
font_01_sfnt_off0000ff75.bin
4aec43453efb84210807d19f2c91d64d507f085fb53ce610644bbf8d93c2eca7
pdf-font-stream PDF embedded font (sfnt) at offset 0xFF75 13124 bytes