Malicious PDF — malware analysis report

Static analysis result for SHA-256 74071399250382e4…

MALICIOUS

PDF

188.3 KB Created: 2020-08-30 10:00:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cf2ede5c03d9d6a98184e921414f1d5a SHA-1: 0a52fb060d4f24ef36c8b3cd07ac23081dd7b006 SHA-256: 74071399250382e421d0b2533303bc5aca623df4b328ea1f443248229868e779
102 Risk Score

Malware Insights

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

The PDF contains an embedded URL that points to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'netflix original' and the URL itself, suggesting a lure to a malicious site. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.cc/wix?keyword=what+does+netflix+original+mean
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/67e251_067af319df634c40a90401d74d189dbd.pdf
    • https://static.usrfiles.com/ugd/b8c837_1199727eb6db4ef891fdadd5cfa11628.pdf
    • https://static.usrfiles.com/ugd/c7a620_13820a83e4924e049ed5bda23444dd8d.pdf
    • https://static.usrfiles.com/ugd/003b86_1f3604d69b334c8dbd840c9a11c01caa.pdf
    • https://static.usrfiles.com/ugd/857e61_78c1fe3cace14d9ba30a889e2ff8892c.pdf
    • https://cdn.shopify.com/s/files/1/0434/2143/4023/files/autoharp_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/49184281443.pdf
    • https://cdn.shopify.com/s/files/1/0429/7680/5013/files/42492093496.pdf
    • https://cdn.shopify.com/s/files/1/0428/6542/6598/files/gefivewotubodojuvuf.pdf
    • https://cdn.shopify.com/s/files/1/0433/3826/8830/files/donufapukeberejatinamat.pdf
    • https://static.usrfiles.com/ugd/b8c837_2022674e470743d2b4a94ddb18289e38.pdf
    • https://static.usrfiles.com/ugd/02beb7_69f105cabf0242519ab854590e1a4414.pdf
    • https://static.usrfiles.com/ugd/7ea8bb_0db0c296dd4543c5b9567cac3e63f86a.pdf
    • https://static.usrfiles.com/ugd/ae15ca_814b543ac7654f72b3a1fbd9d052ff73.pdf
    • https://static.usrfiles.com/ugd/98e298_720b414dabb740e69369b7222b7b4617.pdf
    • https://cdn.shopify.com/s/files/1/0432/7689/4372/files/22257997389.pdf
    • https://cdn.shopify.com/s/files/1/0433/8381/6359/files/dizawimudipaxefotavu.pdf
    • https://cdn.shopify.com/s/files/1/0435/2344/0804/files/xonemawufebedate.pdf
    • https://cdn.shopify.com/s/files/1/0430/0950/7487/files/95039692979.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023eb5.bin
73bb55de839d2b89b607e7ca5c110755563ad770ce53ac1c6384d7e493e31a77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23EB5 22240 bytes
font_01_sfnt_off00028612.bin
9b14ef63231b0408c1742f48406a6d077fa1a02cf26ca48621dd029abfcedc47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28612 5404 bytes
font_02_sfnt_off0002984d.bin
880658d92b6ff6ce92d1987df7cdfa5dda907fad824d4579483ff0bd0e6a9853		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2984D 3404 bytes
font_03_sfnt_off0002a606.bin
8f11eb6073657f5b0e694559d60d46bdf9b7a9424525066ca138e5bc4394df68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A606 11244 bytes
font_04_sfnt_off0002cc81.bin
0216150ac0e5ade23b072752459620ec704bdac01526bfbadd96d51f96873ef3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC81 16168 bytes

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