Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee321df469424c82…

MALICIOUS

PDF

40.4 KB Created: 2020-09-12 04:39:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5608173d4789b3a38a72fa7e4f059d0c SHA-1: 35f0a0ae51957c58cad466d26848d98274196f8c SHA-256: ee321df469424c82f23f73e90bb076deae665ec658856da113df225a4355d630
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to known malicious redirectors or link farms. The document body, though heavily obfuscated, contains URLs that are also present in the heuristics, indicating a deliberate attempt to direct users to potentially harmful sites. The primary goal appears to be SEO poisoning or traffic generation through a link farm.

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.link/wix?keyword=corrugated+metal+sheet+thickness
    • http://lumoxujo.northsalembands.com/uploads/1/3/0/7/130775940/650060.pdf
    • http://files.abdg.info/uploads/1/3/0/7/130775109/fabixov-mapiso-xapiwuk-zanew.pdf
    • http://files.camdenscrusade.com/uploads/1/3/0/8/130874213/rogutazalow-lijoboxemom-bipoj.pdf
    • http://files.stcfministry.com/uploads/1/3/0/7/130739674/tisilefez_xoxivobawulidij_tibise_nozewu.pdf
    • http://files.winter-beauty.com/uploads/1/3/1/4/131437604/a98465.pdf
    • http://kixot.ghosthunterdannorvell.com/uploads/1/3/0/7/130775732/ralepowedelut.pdf
    • http://miwogis.tohscounseling.org/uploads/1/3/2/3/132303382/xerowimalumi.pdf
    • http://tidagom.stocktonargo.com/uploads/1/3/2/6/132682787/bawodule_lixoluzup_jedarebigosepim_raronunivuxobap.pdf
    • https://static.usrfiles.com/ugd/9904c2_ef9a972188d9441a91dc276a03ce57ae.pdf
    • https://static.usrfiles.com/ugd/b91566_621f9d9192d24cf2bd33b4eab6b6c4f1.pdf
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/zijodowobepukegeri.pdf
    • https://cdn.shopify.com/s/files/1/0438/1281/5010/files/anderson_introduction_to_multivariate_statistical_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0434/7812/2649/files/asus_prime_b450m-_a_user_manual.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_off0000600d.bin
140511499fc0ffae9223cb15cc68090dae07ff1a7ce36926427195e478314d25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x600D 5320 bytes
font_01_sfnt_off000071f8.bin
9a035fb774ded69a30fc03c16e806a685eec78a5eecce1ae280283635e7a2af0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71F8 10192 bytes

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