Malicious PDF — malware analysis report

Static analysis result for SHA-256 f740eabe4123e938…

MALICIOUS

PDF

42.5 KB Created: 2020-08-29 14:00:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f3fec4b10abd549ec30ad4e0ee659068 SHA-1: f1b430a0bb3a17da8be34670e9adec9820ed1bc9 SHA-256: f740eabe4123e938743588d47298e1f06d7856d7396fa538a03ba47d153952e8
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a download for 'ets2 truck shop mod'. This indicates a phishing or scam attempt to redirect users to malicious content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

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=ets2+truck+shop+mod
    • https://cdn.shopify.com/s/files/1/0431/3343/6055/files/mark_henri_song.pdf
    • https://cdn.shopify.com/s/files/1/0433/5376/8090/files/pokemon_tower_defense_2_unblocked.pdf
    • https://cdn.shopify.com/s/files/1/0434/7396/1110/files/final_fantasy_tactics_strategy_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/8493/8402/files/60554050544.pdf
    • https://static.usrfiles.com/ugd/66c878_1331cad98c064d28905809f72f2d3156.pdf
    • https://static.usrfiles.com/ugd/b8c837_8bf242f4fa8844189840a0bd42a7aaef.pdf
    • https://static.usrfiles.com/ugd/353d00_baaad59e0abc453891e57a9caa307ac3.pdf
    • https://static.usrfiles.com/ugd/b8c837_f6d5eecba3124a9682269b690e4c0864.pdf
    • https://static.usrfiles.com/ugd/b8c837_e32925c4c4944104ad021826a9565fad.pdf
    • https://static.usrfiles.com/ugd/b8c837_79961817e5e5493aa62251efca1e1a98.pdf
    • https://static.usrfiles.com/ugd/b8c837_60818dd9cbe14df4bd4bec0b9b691139.pdf
    • https://static.usrfiles.com/ugd/4b68be_44ddcf8b4d1e49eda0b6de174eda7c24.pdf
    • https://static.usrfiles.com/ugd/b8c837_79db1b3cedb34562867ac8531568f8aa.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_off000066fd.bin
3dd9fefc8694c6f0a7806c944fd42dbc43defa32c4f500ecfeaf86acbc72119d
pdf-font-stream PDF embedded font (sfnt) at offset 0x66FD 5224 bytes
font_01_sfnt_off0000789d.bin
474a2c11e317b1581df7f4bb592e719ad5a2698a544f027188bcf8990e75615a
pdf-font-stream PDF embedded font (sfnt) at offset 0x789D 10808 bytes