Malicious PDF — malware analysis report

Static analysis result for SHA-256 01c128eed46091cd…

MALICIOUS

PDF

64.5 KB Created: 2020-09-01 16:47:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 05bd7d635177da4955252b40a6b5e9ac SHA-1: 30d110b8d414d484ad16d4796bb5fdfccc50c536 SHA-256: 01c128eed46091cd987a8e64e48ae2616a2d4cdf69750a48d0e3db0adc5d2577
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, a technique often used to redirect users to malicious websites. One prominent URL, 'https://ttraff.ru/wix?keyword=attachment+theory+and+trauma+informed+practice', is flagged as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, reinforcing its role as a lure. The ML classifier strongly indicates maliciousness, supporting the assessment of a malicious link farm attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.ru/wix?keyword=attachment+theory+and+trauma+informed+practice
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0427/5961/8716/files/206963126.pdf
    • https://cdn.shopify.com/s/files/1/0458/9643/3818/files/what_does_contemplate_mean_in_a_sentence.pdf
    • https://cdn.shopify.com/s/files/1/0431/8930/5501/files/doctor_who_the_runnaway_bride.pdf
    • https://static.usrfiles.com/ugd/49be48_f2bd5bb91874439ea51d85abada09e2f.pdf
    • https://static.usrfiles.com/ugd/efb3f0_50265d4d3aa84f7e841d2b9dbf600a0c.pdf
    • https://static.usrfiles.com/ugd/b8c837_cc49fc282ce94bc688b41131689e017e.pdf
    • https://static.usrfiles.com/ugd/b8c837_6b4c1f4e04f04d0da469195ffab11cca.pdf
    • https://static.usrfiles.com/ugd/a2ebd8_2b059dfbc3d34b1e80ff12ac933d3a86.pdf
    • https://static.usrfiles.com/ugd/cec570_2ec511c2b5214d8dbbef7537409c35d5.pdf
    • https://static.usrfiles.com/ugd/6908d7_fe4df8a441eb46bf9218c15dfb97006c.pdf
    • https://static.usrfiles.com/ugd/784815_2c877fb3a1d24cd1a41436d42d56c774.pdf
    • https://static.usrfiles.com/ugd/bf0735_ead7569f0ec441eb89bb7a496d95fc85.pdf
    • https://static.usrfiles.com/ugd/cb4a18_8bba4a0d4fc3420f83a343468f830718.pdf
    • https://static.usrfiles.com/ugd/a64c8c_154c0b64f63e49fd81663617552650fc.pdf
    • https://static.usrfiles.com/ugd/d1d005_9871b5020f2b4c64b5e54e106182e6c3.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bfcd.bin
815ff320ba75b0886b81c599cebe419527795692dd260ebb7ece483060dd5af5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBFCD 5276 bytes
font_01_sfnt_off0000d1a4.bin
0dc2d247869a25e1417dadd56d7e17c5b743f9d8530d3ba9025eb95c83e94010		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD1A4 10376 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.