Malicious PDF — malware analysis report

Static analysis result for SHA-256 3248ffc93f3385df…

MALICIOUS

PDF

34.2 KB Created: 2020-08-17 01:37:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 444251ed4a5d48eda428b7d4b7126217 SHA-1: f7234fb6364e6ee2f1ac5f330f1e5a2cf5f07840 SHA-256: 3248ffc93f3385df99ccd1766af27f4006af9eb6a2c3816dc221ad44e0140889
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with a critical heuristic identifying it as a link farm. One of these links, 'https://ttraff.cc/pify?keyword=bauhn+cordless+headphones+manual', points to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains this URL, suggesting the primary purpose is to direct users to malicious sites, likely for phishing or malware delivery.

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/pify?keyword=bauhn+cordless+headphones+manual
    • http://jimefoxip.stringtheorytennis.org/uploads/1/3/1/1/131163599/2415800.pdf
    • http://bekep.ridgelanddiscountwineandspirits.com/uploads/1/3/1/4/131406893/fazenupaxupo.pdf
    • http://rerukize.tricotting.com/uploads/1/3/1/0/131070374/gajutiropop_tibepebitamofa_nexam_kakositosizivuw.pdf
    • http://files.coachyash.com/uploads/1/3/1/3/131380612/zuxaba_fewamugofow_nozujawisaf.pdf
    • http://files.maxhamhypnosis.com/uploads/1/3/1/0/131071137/3837161.pdf
    • https://cdn.shopify.com/s/files/1/0431/6617/1297/files/casual_vacancy_vk.pdf
    • https://cdn.shopify.com/s/files/1/0436/8692/0347/files/alembic_pharma_annual_report_2017-_18.pdf
    • https://cdn.shopify.com/s/files/1/0428/3629/5836/files/evil_dead_movie_moviescounter.pdf
    • https://cdn.shopify.com/s/files/1/0434/9624/3364/files/zuvimoteririfavixulababuw.pdf
    • https://cdn.shopify.com/s/files/1/0432/5851/1510/files/39280101672.pdf
    • https://cdn.shopify.com/s/files/1/0427/8370/3206/files/28587560491.pdf
    • https://cdn.shopify.com/s/files/1/0431/0515/7284/files/botw_cold_resistance_food.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/radeziwiwilajumigetadad.pdf
    • https://cdn.shopify.com/s/files/1/0432/0234/7168/files/yolanda_sald_c3_advar.pdf
    • https://cdn.shopify.com/s/files/1/0431/6535/2097/files/78176770144.pdf
    • https://cdn.shopify.com/s/files/1/0431/1764/1879/files/8959267456.pdf
    • https://cdn.shopify.com/s/files/1/0434/8120/2854/files/chief_financial_officer_job_description.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_off000048d0.bin
c8de49ac56ace9f720fb0de985a774769e9ac7e8a5524a02b63a0bcbcc2860be
pdf-font-stream PDF embedded font (sfnt) at offset 0x48D0 5360 bytes
font_01_sfnt_off00005ad6.bin
8a9f9d1224d263ad275da442cf0de35ba79283144ce620625694ddac57eaad47
pdf-font-stream PDF embedded font (sfnt) at offset 0x5AD6 9620 bytes