PDF malware analysis — malicious · 0277e663df670b68

MALICIOUS

PDF

147.4 KB Created: 2020-08-29 05:57:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: d73d7050ee935c8442ce7f8de34ed22a SHA-1: 76a7b7739312bd54ea9b199af89abbd24c0afd4d SHA-256: 0277e663df670b68477a30c9072f96107ddbde36de8950dabe8b90065d83925a

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/wix?keyword=hentai+slave+porn'. The document body, though heavily obfuscated, also contains this URL. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

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.
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=hentai+slave+porn
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_dda40266564a42a2a011b4c308ba3623.pdf
- https://static.usrfiles.com/ugd/b8c837_88ca40505ca84e849957cd6520c240bc.pdf
- https://static.usrfiles.com/ugd/b8c837_3e0ae4b46e414e14a10645d9618d4e29.pdf
- https://static.usrfiles.com/ugd/b8c837_6bec7bd20ef2441ba72da88219e6da27.pdf
- https://static.usrfiles.com/ugd/b8c837_bf52e3c9035c4fc5ba97cdc78f330aad.pdf
- https://static.usrfiles.com/ugd/b8c837_611513a2cddb44be9557253f53ebc0ab.pdf
- https://static.usrfiles.com/ugd/b8c837_a88f861a8e144978a1b0cae6ecfa9142.pdf
- https://static.usrfiles.com/ugd/b8c837_027320e90758453b84a9d3a429a73735.pdf
- https://cdn.shopify.com/s/files/1/0441/1362/5240/files/how_to_see_bed_bugs_on_sheets.pdf
- https://cdn.shopify.com/s/files/1/0432/8180/9558/files/84705790321.pdf
- https://static.usrfiles.com/ugd/b8c837_40de1ed594de4c2d8baf9abd8154e004.pdf
- https://static.usrfiles.com/ugd/b8c837_8417fa4b33b741ca9dab5101dfc5ddc9.pdf
- https://static.usrfiles.com/ugd/b8c837_db43475c013b4a038cbe994afa5ee37f.pdf
- https://static.usrfiles.com/ugd/b8c837_0ea82feab48846e2affe08e1fd49485a.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0001d5e1.bin` `872aa8b3e7a28cbebe27a3d146a60251589d6cf158afe6e202ef9784e4899c54`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1D5E1	13612 bytes
`font_01_sfnt_off0002020b.bin` `01da66c0c519a32e341055c6d4057fea33014e2ae90867e4e67007162180e5f2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2020B	4836 bytes
`font_02_sfnt_off00021285.bin` `d4a492d9f9811b8430edf50449487609d0975b08401811911ff5f10a7dbb39fa`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x21285	14648 bytes

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