PDF malware analysis — malicious · 5a79bbdbf7f49c2a

MALICIOUS

PDF

42.3 KB Created: 2020-08-31 02:54:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 092d8b55e757ea7b26aeb44cd987defb SHA-1: 3db00d89e777179ca2a06e2a3817d0b91150a49f SHA-256: 5a79bbdbf7f49c2a509b22ac833bae19ed854520e60def89fc38dbf7c235a610

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a prominent link disguised as a lure to 'hack instagram account free no survey no download'. This link, along with numerous other embedded PDF links, points to external resources, with one specifically identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the malicious URL and other PDF links.

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.com/wix?keyword=hack+instagram+account+free+no+survey+no+download
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/6732/6112/files/lean_mass_workout_plan.pdf
- https://cdn.shopify.com/s/files/1/0459/9401/6935/files/tamil_devotional_songs_abirami_anthathi_free.pdf
- https://cdn.shopify.com/s/files/1/0429/1959/2099/files/43779211116.pdf
- https://static.usrfiles.com/ugd/173616_8d62067bd79b4d57b96986f3de8aede0.pdf
- https://static.usrfiles.com/ugd/cb4a18_017f63f114fc4c3bb92c96e1e232ce18.pdf
- https://static.usrfiles.com/ugd/dc98cc_85556ceb0c21446da797b1bf9087e26e.pdf
- https://cdn.shopify.com/s/files/1/0432/6303/3502/files/zituriduwopikuriba.pdf
- https://cdn.shopify.com/s/files/1/0432/3196/9438/files/fefadimuvesem.pdf
- https://static.usrfiles.com/ugd/b8c837_09a1505ba1864445ae4780b5e3ee6aca.pdf
- https://static.usrfiles.com/ugd/b8c837_d6d61d92a1c948e5b88b6573c3cee4dc.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006553.bin` `a767521db8e969c457e37d1bbfec71123ea7101ad2bab26659ee3377db671001`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6553	5620 bytes
`font_01_sfnt_off0000786d.bin` `323007504729792ada9641ff357c03f6465972a9a400956c7e6060877dbb8cc4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x786D	10560 bytes

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