Malicious PDF — malware analysis report

Static analysis result for SHA-256 89d83be26517bfaa…

MALICIOUS

PDF

39.2 KB Created: 2020-08-30 04:46:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 484a9fb688fb49151e2d0e9eb7222373 SHA-1: 956d2b469d6b93229bd2b5675bdb1d73f4fda44a SHA-256: 89d83be26517bfaacdb5b2580178d0c8dd624d43b9884151e83a15e285811707
120 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as a Samsung dishwasher owner's manual. The primary malicious URL, https://ttraff.cc/wix?keyword=owners+manual+for+samsung+dishwasher+dw80f600uts, is flagged as a malicious redirector. The document also contains a large number of embedded links to various PDF files, likely for SEO manipulation to increase visibility.

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/wix?keyword=owners+manual+for+samsung+dishwasher+dw80f600uts
    • https://cdn.shopify.com/s/files/1/0432/5657/8212/files/annual_report_2018-_19_iocl.pdf
    • https://cdn.shopify.com/s/files/1/0433/2562/0374/files/60357452166.pdf
    • https://cdn.shopify.com/s/files/1/0431/8583/2096/files/tunarizajut.pdf
    • https://cdn.shopify.com/s/files/1/0433/5016/3609/files/peewee_longway_longway_sinatra_download.pdf
    • https://static.usrfiles.com/ugd/b8c837_aaea98ca805a4118a92d760239612e5c.pdf
    • https://static.usrfiles.com/ugd/80c1db_a90a31b8979c4a7a9bd61995762a0f26.pdf
    • https://static.usrfiles.com/ugd/6908d7_333ffc2fa16d4295ab764850e56fad16.pdf
    • https://cdn.shopify.com/s/files/1/0431/8714/2819/files/pisodikedulebuketi.pdf
    • https://cdn.shopify.com/s/files/1/0437/6988/8920/files/speaking_ielts_questions_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0460/1344/8353/files/best_android_emulator_for_mobile_legends_2019.pdf
    • https://cdn.shopify.com/s/files/1/0429/6019/1637/files/xusebopume.pdf
    • https://cdn.shopify.com/s/files/1/0459/9962/0263/files/finding_slope_of_a_line.pdf
    • https://cdn.shopify.com/s/files/1/0429/4184/1575/files/5464491122.pdf
    • https://cdn.shopify.com/s/files/1/0431/6263/2360/files/advertising_on_facebook.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_off00005a10.bin
b16bc0a046c58e27259167bc73510e94ad06ff3abeafa65a9dbf34fc2d720b8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A10 5928 bytes
font_01_sfnt_off00006e16.bin
5c651e9fc854a1a788895037d3514703058bc08aa5d2755cc4b06ee97e1b9a14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E16 9936 bytes

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