Malicious PDF — malware analysis report

Static analysis result for SHA-256 c035fdad74f5e34f…

MALICIOUS

PDF

36.1 KB Created: 2020-09-11 10:03:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0364c2158c6e704025cbb48a3d472723 SHA-1: f77bd36637f46e54fb4c580c5f26f4c8371ccab4 SHA-256: c035fdad74f5e34ffc7a4142d5bf6074a808a826390b666465020ee250386a91
150 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily corrupted, contains text related to 'watch the basketball diaries full movie' and includes the malicious URL, suggesting a lure to a fake streaming site. The presence of a large number of external PDF links further indicates a link farm or redirection strategy. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=watch+the+basketball+diaries+full+movie
    • http://files.jsuhonorband.com/uploads/1/3/2/7/132710634/7bb2097d1c.pdf
    • http://files.spaproductswholesale.com/uploads/1/3/2/6/132682655/206797.pdf
    • http://rebet.uclagsa.org/uploads/1/3/2/6/132696212/abeebb697a66c.pdf
    • https://static.usrfiles.com/ugd/3aca14_7011708795934f67872bd420fa1553c1.pdf
    • https://static.usrfiles.com/ugd/4bb894_175ecbdb5b464f899bf5012ee6ef2a6e.pdf
    • https://static.usrfiles.com/ugd/529dbf_0b4f9846919d4d55b03904904db5e4a4.pdf
    • https://static.usrfiles.com/ugd/fc840b_b79f82bb8da94b6cb883ded75ae687d2.pdf
    • https://static.usrfiles.com/ugd/df7b34_fa31050e8f45490f850f8a09e93feef8.pdf
    • https://static.usrfiles.com/ugd/b972d5_602094f91c5d45de98099ea5eb012598.pdf
    • https://static.usrfiles.com/ugd/c618e9_0f1ed93843f547b59a0b68f1bf4f707d.pdf
    • https://static.usrfiles.com/ugd/ac0094_0da082653c8942cdb769b783564fbcf4.pdf
    • https://static.usrfiles.com/ugd/268ab1_1f7cee4f143643cfb8434ee743151d4a.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_off00004c11.bin
dd7b2e1b141531fa0a320e65d49253a9a07a248beddd7d173920d3853445f7fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C11 5540 bytes
font_01_sfnt_off00005ec4.bin
87ee81fc9a96b1d99ebb10358c17223c2bb64e286a2d89e625243a9c89f605be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC4 10860 bytes

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