Malicious PDF — malware analysis report

Static analysis result for SHA-256 020c8ca09a281240…

MALICIOUS

PDF

48.4 KB Created: 2020-08-29 19:02:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a878a046bafe647ad87ebb50854efeb6 SHA-1: 7480d538e4474178437ee521655c16cde1cf35a3 SHA-256: 020c8ca09a28124068b1de7d1187d7e99dc21f8667a07a308ad8d89d285a1b2d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links, one of which, 'https://ttraff.ru/wix?keyword=2002+jeep+grand+cherokee+owners+manual', is flagged as a malicious redirector. The document body, though heavily obfuscated, appears to reference vehicle manuals, suggesting a lure to entice users to click the malicious link. The presence of numerous external links, many pointing to PDF files, indicates a link farm or redirection strategy.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=2002+jeep+grand+cherokee+owners+manual
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/b8c837_428cec0b543d4fd7a34cd88414831e33.pdf
    • https://static.usrfiles.com/ugd/accd1f_9eab0b5cc6784e76a2ac097daa572c00.pdf
    • https://static.usrfiles.com/ugd/b8c837_3f066c0bc46c47048f988b9d4575c723.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/bihar_police_si_question_paper_2020.pdf
    • https://static.usrfiles.com/ugd/b8c837_ce1e48244c014206ba6b39bce20c7902.pdf
    • https://static.usrfiles.com/ugd/a467d2_9cca132fef674e8298ce532749f26162.pdf
    • https://cdn.shopify.com/s/files/1/0435/1324/9944/files/kettlebell_core_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/52937427831.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_off00007a6e.bin
66a0350c5dcf916a31197d474789c7e7bdee5f85390b376d7789b4afa53219fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A6E 5900 bytes
font_01_sfnt_off00008e62.bin
7a4ced8b430a6039dcf7321387c37ec198fe6991e40da38f004390e3c1bbfdef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E62 11836 bytes

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