PDF malware analysis — malicious · 3b5d22d1c4413b30

MALICIOUS

PDF

32.3 KB Created: 2020-08-30 06:26:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 154f72fb8ebf0281144031290e600c3a SHA-1: 2014742016e216edcb9a4719aa39a739b78cabf9 SHA-256: 3b5d22d1c4413b30e943321b6626d379470a94cb3f7a0b294c92346de4c1a7af

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the same URL found in the heuristic. This suggests the primary purpose of the document is to redirect the user to a malicious site.

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.club/wix?keyword=maribel+calvo+ruiz+trw+automotive
- https://static.usrfiles.com/ugd/e33828_54b44e11776d4726a6dd5e556ffc01f6.pdf
- https://static.usrfiles.com/ugd/36f25b_d7279f1ee1fd421391b32aa98d4cc3a8.pdf
- https://static.usrfiles.com/ugd/b8c837_2526511def294fe18bce66adcfdb3219.pdf
- https://static.usrfiles.com/ugd/83e24f_ecd3852779ed420990549fbae320bcdd.pdf
- https://static.usrfiles.com/ugd/b8c837_534552ca5cc945eb8d8006ed573495a2.pdf
- https://static.usrfiles.com/ugd/b8c837_ea41ad8af7544b85a84fa16b69343393.pdf
- https://cdn.shopify.com/s/files/1/0431/7193/8453/files/dark_sentinel_christine_feehan_read_online.pdf
- https://cdn.shopify.com/s/files/1/0431/5627/5362/files/33571388039.pdf
- https://cdn.shopify.com/s/files/1/0428/6709/7756/files/1912523630.pdf
- https://cdn.shopify.com/s/files/1/0439/1125/0075/files/73752670282.pdf
- https://static.usrfiles.com/ugd/2ac701_2b706e78929d4d38b86fa0c4f9162c44.pdf
- https://static.usrfiles.com/ugd/66c878_bd210129cd764e25be5368ed72fdee40.pdf
- https://static.usrfiles.com/ugd/04e6f9_a4be7f1bbad04662a4a21350070b5396.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_off00004335.bin` `8b2aa9dd20317c00aa531c42c2a67ef1d54d2aa46405295d5933ba730e616886`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4335	5112 bytes
`font_01_sfnt_off000054a2.bin` `6481502b5d9c63c01cc83c465dd15b5db3ea22afb890703bec0540467936bf94`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x54A2	9424 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.