PDF malware analysis — malicious · bba10221d353ea18

MALICIOUS

PDF

40.3 KB Created: 2020-08-30 04:32:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 2ddf75d8de0ceea266b8a08df1df00bb SHA-1: 646481aa67fb248e511bd68350355ff144960377 SHA-256: bba10221d353ea187280cf1963415e848168016dbe8b06ed920a634dd7599e6e

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. It also contains a large number of external links, characteristic of a link farm, with one specific URL identified as malicious. The ML classifier strongly supports the malicious verdict. No scripts were extracted, and the document body was heavily obfuscated, but the presence of the malicious redirector URL is the primary indicator of compromise.

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/wix?keyword=dnd+travel+time
- https://static.usrfiles.com/ugd/2c8d66_641ad4b625da4de1ab8062d07af796e5.pdf
- https://static.usrfiles.com/ugd/a48928_f9613abd86be466fb396a54d40d53ad6.pdf
- https://static.usrfiles.com/ugd/8ab72e_23d455a2bf634e4ab90bc2f10d5dbc13.pdf
- https://static.usrfiles.com/ugd/b47706_74028ec524734218b7b383498a65b26d.pdf
- https://cdn.shopify.com/s/files/1/0437/2480/0151/files/dear_god_lyrics_avenged_sevenfold.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/11783771814.pdf
- https://cdn.shopify.com/s/files/1/0433/9020/6115/files/32565233378.pdf
- https://static.usrfiles.com/ugd/b8c837_da1d89f37c7d48e9a237f352745ba269.pdf
- https://static.usrfiles.com/ugd/bf650e_b4bed8d53610411a990432968f8a3acf.pdf
- https://static.usrfiles.com/ugd/4dd980_27b122bfba224bb3a2384624ba9c70ee.pdf
- https://static.usrfiles.com/ugd/c63dba_009af11aa5954de280567c9f72dc71ba.pdf
- https://static.usrfiles.com/ugd/b8c837_86d9ae27a821481aa156e7006b923e4a.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_off00006059.bin` `ecc7818f2eee54ebab9c0bb7f3df6c32b9ae16e93a84d50cf924817a43109161`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6059	4852 bytes
`font_01_sfnt_off000070c5.bin` `3a7c8f0f1c877d3388d510ee87ebc0b55c0e0c18c840bcc56fb41bb8184eb0f4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x70C5	10740 bytes

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