PDF malware analysis — malicious · d7b9c3e6b2ca809c

MALICIOUS

PDF

46.1 KB Created: 2020-08-31 16:19:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bdbfa22c38f9eb5267569759c7e6713d SHA-1: 13a63af307ef1713a561864822cfd23974c02801 SHA-256: d7b9c3e6b2ca809c3b3cbf1bf48b826f6fd4f407cb51d77c00f2d1155ebc765f

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.me/wix?keyword=mahi+teri+chunariya+song++320kbps'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure for song downloads, which is a common tactic for distributing malware or leading to phishing sites.

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=mahi+teri+chunariya+song++320kbps
- https://cdn.shopify.com/s/files/1/0431/7075/8820/files/busututokibobe.pdf
- https://cdn.shopify.com/s/files/1/0432/4012/8671/files/ms_word_label_template_avery_l7163.pdf
- https://cdn.shopify.com/s/files/1/0431/4021/9034/files/gba_emulator_psp.pdf
- https://cdn.shopify.com/s/files/1/0435/3546/6655/files/pizeduvosu.pdf
- https://cdn.shopify.com/s/files/1/0437/3826/7809/files/dicte_5me_bescherelle.pdf
- https://static.usrfiles.com/ugd/89064d_43188c712cd8459292e0fa304777984c.pdf
- https://static.usrfiles.com/ugd/b8c837_585e8478dc684b0b9b27ade8e9e7a858.pdf
- https://static.usrfiles.com/ugd/8c0e65_e0057a4b15bf482dbc4cecc62ef0763e.pdf
- https://static.usrfiles.com/ugd/5af86b_c6f48e1c27b54e58835652790a918a50.pdf
- https://cdn.shopify.com/s/files/1/0435/4634/5640/files/19866554801.pdf
- https://cdn.shopify.com/s/files/1/0430/8995/2922/files/gisola.pdf
- https://cdn.shopify.com/s/files/1/0464/7609/9752/files/aashiqui_2_songs_naa_songs_video.pdf
- https://static.usrfiles.com/ugd/e7e4a0_738708dbf4c9438185bc2a84f1df4202.pdf
- https://static.usrfiles.com/ugd/b5472a_054297dcb7044defbafd42706fcbb7a1.pdf
- https://static.usrfiles.com/ugd/b8c837_e85dd171fe154ea7a1a64fa96965ea2d.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00006bc5.bin` `fdd9a9d33daa50ac3b1494be03ded3eb1a61b2650480cce57dce0fe43d806d95`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6BC5	5912 bytes
`font_01_sfnt_off00007ff1.bin` `49c5a7d49d40d336dddd9b49bde6b27edc3314dbfec6aa4016073d76244c570c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7FF1	13832 bytes

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