Malicious PDF — malware analysis report

Static analysis result for SHA-256 a02f067d6d397935…

MALICIOUS

PDF

43.2 KB Created: 2020-09-05 11:47:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45d83309c131f176b8bb8e435491ed6d SHA-1: dd8965420754f4074767a9d87e49d7844b3afeb7 SHA-256: a02f067d6d39793581878d26a2cf5a42b2fdaf38ce6bf971c677019eface0e31
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, directing users to a URL disguised as a practical guide. The document body, though heavily obfuscated, contains the same URL and text, reinforcing the lure. The presence of numerous other links to benign-looking PDFs suggests a link farm intended to obscure the malicious destination.

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.me/wix?keyword=free-+energy+devices+practical+guide
    • https://static.usrfiles.com/ugd/0f5b72_baf479d859bb418cb05e8b628ce690c2.pdf
    • https://static.usrfiles.com/ugd/3d7af5_36e989ffc24d4133957c718680292daf.pdf
    • https://static.usrfiles.com/ugd/ecec20_a3f55352a2214bf29f5bed3ef3d962ce.pdf
    • https://static.usrfiles.com/ugd/a12125_b3abb30e7fb94da1ab07d95ee28c578e.pdf
    • https://cdn.shopify.com/s/files/1/0437/7962/1026/files/2016_movies_bollywood_songs.pdf
    • https://cdn.shopify.com/s/files/1/0428/3518/1734/files/jebizajakedov.pdf
    • https://cdn.shopify.com/s/files/1/0430/0547/7023/files/lahaina_harbor_breakwall_surf_report.pdf
    • https://cdn.shopify.com/s/files/1/0430/4335/6821/files/biennial_report_dc.pdf
    • https://cdn.shopify.com/s/files/1/0432/3033/1047/files/easier_english_basic_synonyms.pdf
    • https://static.usrfiles.com/ugd/f65518_94e0441870d24074958560ee7802a710.pdf
    • https://static.usrfiles.com/ugd/0286dd_7606260b4f0141f284f847d8c7c73688.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_off00006b81.bin
30aa57192db83955d14362937f738365e0bd523f5c08cd605454a5f34be5df41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B81 5388 bytes
font_01_sfnt_off00007e02.bin
6ad71edd33dee320904934f95863ad55858a4b1903143233ee06cad7594d2943		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E02 10084 bytes

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