PDF malware analysis — malicious · d06e853c338a6cd7

MALICIOUS

PDF

46.6 KB Created: 2020-09-02 12:13:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 1a0b71d148b5b32e8a0668fbbee6f78f SHA-1: 81814957418365b18f5e250e24850531a56cfe65 SHA-256: d06e853c338a6cd7fbeeb21dec9c8ce510cd150d937b5362902c563a2c920dcc

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that suggests a lure related to financial guides. The presence of a link farm further indicates malicious intent, likely to distribute further payloads or phish for credentials.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.
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.
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.ru/pify?keyword=fantastic+frontier+money+guide
- https://static.usrfiles.com/ugd/03a576_82e2acb53c77441fa1069b8a9d397909.pdf
- https://static.usrfiles.com/ugd/b48b60_1fd138da2c7343db9002797da03911ca.pdf
- https://static.usrfiles.com/ugd/ad2ade_fb084825e3d94f57a28c9202ed57e723.pdf
- https://static.usrfiles.com/ugd/67e251_5802eb50200142f7a1239b250e603740.pdf
- https://static.usrfiles.com/ugd/defd8a_78179555879f4782a70e4766c94395af.pdf
- https://static.usrfiles.com/ugd/ad2ade_7304267b81214e65b2700e3592b91fe9.pdf
- https://static.usrfiles.com/ugd/b8c837_0059d019dd9447f2a0ece78b553d13f6.pdf
- https://static.usrfiles.com/ugd/99965f_00127dc0c53f40219a8e33c84e150c95.pdf
- https://static.usrfiles.com/ugd/c7a620_a6f72810c92743eba2636ebf73b5b9cd.pdf
- https://static.usrfiles.com/ugd/cac9e4_346328eea4e24d6fbb7e4172828c6545.pdf
- https://static.usrfiles.com/ugd/6df952_fdd7994cf5a548deb9685f067030f6b5.pdf
- https://static.usrfiles.com/ugd/ca9b0a_38c39b8656bb4b27bac217350a236736.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000069f0.bin` `10a3121cc34652e6f450566f296f99ab2a2e171920819f40224bde4edcb9aa48`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x69F0	5248 bytes
`font_01_sfnt_off00007bb1.bin` `33f78410b8d067790a7e14b4f40f6571180877aa39253190adb56d2718a790a5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7BB1	10476 bytes
`font_02_sfnt_off00009f8d.bin` `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9F8D	4324 bytes

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