Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0a656589cf6cb7a…

MALICIOUS

PDF

38.6 KB Created: 2020-09-01 01:26:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c6d308c7c314e54f4b35b2de92f081b SHA-1: 64121afe73be471651665eaa578fe84c22676b0d SHA-256: d0a656589cf6cb7a4c5e1ec2e7b37e783a48761ee9d8cc4be22afeb78409288c
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 the primary URL `https://ttraff.com/wix?keyword=form+amalgamasi+pdf` identified as a malicious redirector. This suggests the document is designed to direct users to malicious sites, potentially for phishing or malware distribution. The presence of numerous links points towards SEO poisoning tactics to increase visibility. No scripts were extracted from this sample.

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.com/wix?keyword=form+amalgamasi+pdf
    • https://static.usrfiles.com/ugd/0df15e_ce7ea2d49b3340dfb56d4e37f2847d45.pdf
    • https://static.usrfiles.com/ugd/b8c837_259237dfbc5c4eaab657fb1e0700b98d.pdf
    • https://static.usrfiles.com/ugd/b11f6d_86f3351733c24fcb94f835b149327c85.pdf
    • https://static.usrfiles.com/ugd/c4ccc4_cf4b3c0b9fe74700afd1aa292190ec58.pdf
    • https://cdn.shopify.com/s/files/1/0464/7423/1960/files/kevasonatejejixasulotos.pdf
    • https://static.usrfiles.com/ugd/b8c837_3c241bf2bd904e6089d9dccdb7324562.pdf
    • https://static.usrfiles.com/ugd/cc03df_f9d102c1d4154e3fb6992ef95ef12503.pdf
    • https://static.usrfiles.com/ugd/b7ed05_91045d78108d452884738719c782551b.pdf
    • https://static.usrfiles.com/ugd/07e02c_8abc07177cb3455cbce83ba972edc391.pdf
    • https://static.usrfiles.com/ugd/87d215_06ae24bc9a634f8b81a57d8bf12d99b1.pdf
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/fisexujewujukebageko.pdf
    • https://cdn.shopify.com/s/files/1/0437/3548/2517/files/laporan_pendahuluan_bronkopneumonia_pada_orang_dewasa.pdf
    • https://cdn.shopify.com/s/files/1/0437/6435/1130/files/wilms_tumor_in_adults_case_reports.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_off00005838.bin
63236e2f7ef16303163fde0cdef9cf75b87ce75e1045f90522dc0f2fb4031f9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5838 5316 bytes
font_01_sfnt_off00006a37.bin
377686539fff9d630fa9565219a18400894cc02a53ba3952490cb96b71647a20		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A37 10448 bytes

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