Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e6a0c07bd5ac117…

MALICIOUS

PDF

34.2 KB Created: 2020-08-31 05:50:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fd6d2f7191e7eec68675362498ff2135 SHA-1: 0f5b6fd5f4f4ed5dc6cd4ae7e6a30b67bfcdd13e SHA-256: 0e6a0c07bd5ac117b4e37c43562004249dbb63a3aedf6b555841625ace66fe35
154 Risk Score

Malware Insights

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

The PDF contains embedded URLs that lead to a known malicious redirector, ttraff.com. The document body, though heavily obfuscated, contains text that appears to be a lure for movie-related content, likely to entice users to click the malicious link. The ML classifier strongly indicated maliciousness, and the PDF structure itself points to malicious redirector usage.

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.com/wix?keyword=the+maze+runner+the+scorch+trials+google+docs
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/b8c837_7c00e3fd763d49aeb52b56d4275fa331.pdf
    • https://static.usrfiles.com/ugd/e3ff21_40dc983d794346fc98f1abe40c88d23e.pdf
    • https://static.usrfiles.com/ugd/b8c837_f60e6bf37bba49bab33a35556f3a8162.pdf
    • https://static.usrfiles.com/ugd/ab059d_fd9a0d81c5cf4c249c8d1f6fe27f2189.pdf
    • https://static.usrfiles.com/ugd/b8c837_1f3231aef4ee41f991438e683adcb6bc.pdf
    • https://static.usrfiles.com/ugd/2ac701_cd1590b93cd64e3b9229c0a8f782a433.pdf
    • https://static.usrfiles.com/ugd/b8c837_9b344450f25b49bf95e1d2fa05b85f01.pdf
    • https://static.usrfiles.com/ugd/b8c837_a5d220dd90284c729c86f96fde353a67.pdf
    • https://static.usrfiles.com/ugd/77941b_7bb190f0b3944c27adf1dfb95d874c09.pdf
    • https://static.usrfiles.com/ugd/87d215_0d8a19ff12b94eaba6c6277154cc370d.pdf
    • https://static.usrfiles.com/ugd/b8c837_5e124e27a9ad40eaa2c231729b4f7778.pdf
    • https://static.usrfiles.com/ugd/34e21e_512aa6e25b484fcda7f7b35350934f31.pdf
    • https://static.usrfiles.com/ugd/a18aa6_756e4baeee7d477f81b073f4d22ddacf.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_off0000473f.bin
d9daa892049ea3c2ce9b33c7d9685d0949d1f4a6bb17bd4df19f6626bf665e7b
pdf-font-stream PDF embedded font (sfnt) at offset 0x473F 5352 bytes
font_01_sfnt_off0000594a.bin
abd61befc5e811159b84b8ecc3e6460e38265a9565ec4324c92ec8749c2ec422
pdf-font-stream PDF embedded font (sfnt) at offset 0x594A 10092 bytes