Malicious PDF — malware analysis report

Static analysis result for SHA-256 5884de2eae12354f…

MALICIOUS

PDF

46.8 KB Created: 2020-08-10 01:51:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 709b555f23ddabcd11da5181e91f2c0a SHA-1: 7a4dc1589103449b60aff902e319390e5087a70d SHA-256: 5884de2eae12354ffbe5e4aa888cb31f9995f507ff5fca822f13dc301b048c27
120 Risk Score

Malware Insights

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

The PDF contains a mass link farm, with many links pointing to Shopify domains and one critical link to a known malicious redirector at ttraff.cc. The document body, though heavily obfuscated, contains the same academic-sounding lure and the malicious URL, indicating the intent is to trick the user into visiting the redirector. The redirector likely leads to further malicious content or exploits.

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=composition+and+structure+of+atmosphere+notes+pdf
    • http://files.fallcityarts.com/uploads/1/3/1/0/131069906/nalosubuxusofofeta.pdf
    • http://files.rrrca.org/uploads/1/3/2/6/132695333/d29eab18cf4681.pdf
    • http://files.nevadadiscoveryride.com/uploads/1/3/1/3/131381540/dorojede.pdf
    • http://files.cnycatholiccalendar.com/uploads/1/3/2/6/132681634/varodefos_sasikokirase_gujofi.pdf
    • http://files.impunity.site/uploads/1/3/1/4/131438449/xejupufazaturiv_nuduwaxokuv.pdf
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/zavabulorazelosubusowe.pdf
    • https://cdn.shopify.com/s/files/1/0429/0212/6751/files/11975651442.pdf
    • https://cdn.shopify.com/s/files/1/0434/9191/7989/files/cervicogenic_headache_stretching_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/route_66_theme_song.pdf
    • https://cdn.shopify.com/s/files/1/0429/5517/8150/files/4427913680.pdf
    • https://cdn.shopify.com/s/files/1/0435/1908/2655/files/73973254147.pdf
    • https://cdn.shopify.com/s/files/1/0431/5955/2155/files/uat_test_plan_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/0046/2503/files/ways_of_the_world_2nd_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0436/0486/9277/files/traducir_de_ingles_a_espaol_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0431/4402/0125/files/john_deere_weed_eater.pdf
    • https://cdn.shopify.com/s/files/1/0432/3321/4621/files/36877812661.pdf
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/35485628585.pdf
    • https://cdn.shopify.com/s/files/1/0434/4732/0728/files/puxopom.pdf
    • https://cdn.shopify.com/s/files/1/0432/1165/3277/files/vocabulario_de_arquitectura_en_ingles.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_off0000778a.bin
d7042ac505993a2eca361a9f4af5ac36acdaaf83e613783bda3c6d2a66de4e8b
pdf-font-stream PDF embedded font (sfnt) at offset 0x778A 5268 bytes
font_01_sfnt_off00008944.bin
361cbe15223621c535694a6cee941cb99c08c0409c3694c401a5625dc3b8da65
pdf-font-stream PDF embedded font (sfnt) at offset 0x8944 10780 bytes