PDF malware analysis — malicious · ed073c97ea375d16

MALICIOUS

PDF

43.6 KB Created: 2020-09-06 04:39:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3967e3705557d55456993b578527f6fd SHA-1: 904a35acd0f836103e4a11c9041d44a198142287 SHA-256: ed073c97ea375d16c47d270cffa6e0b6b9b0288258c3969b3a4c450fe7873188

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'statistical analysis tools free' and a URL that aligns with this lure. The ML classifier also strongly flagged this PDF as malicious. The primary attack vector appears to be a social engineering lure to trick users into visiting a malicious URL.

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.me/wix?keyword=statistical+analysis+tools+free
- https://static.usrfiles.com/ugd/b8c837_073255147b3d4eb9af1680627590f601.pdf
- https://static.usrfiles.com/ugd/e2b09b_8e0ce69e43354939aad9e2f91f0136b9.pdf
- https://static.usrfiles.com/ugd/e2f197_1b44ca79de8c473088e6c7a97b5b22be.pdf
- https://cdn.shopify.com/s/files/1/0429/2630/9543/files/que_es_un_portador_de_anemia_falciforme.pdf
- https://cdn.shopify.com/s/files/1/0433/8896/0933/files/44887729200.pdf
- https://cdn.shopify.com/s/files/1/0428/8184/3356/files/75733146489.pdf
- https://cdn.shopify.com/s/files/1/0439/1940/9320/files/pdf_answer_key_math_10.pdf
- https://cdn.shopify.com/s/files/1/0436/9596/4328/files/xigaxasizosapovelewizim.pdf
- https://cdn.shopify.com/s/files/1/0440/4002/8325/files/dbz_dokkan_android_17_phy.pdf
- https://cdn.shopify.com/s/files/1/0435/8042/4351/files/busch_gardens_tampa_map_2020.pdf
- https://static.usrfiles.com/ugd/6116da_7c2f058392c94f63aa0aab3893328437.pdf
- https://static.usrfiles.com/ugd/238140_73cd2757c7e541c2b07fb4e9c16fb77c.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_off00006cbd.bin` `cf99612a76a0b45616f11fc6070c71e2351b04fc219250b71f21e3de0b129868`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6CBD	5080 bytes
`font_01_sfnt_off00007e17.bin` `860777f9c2b6fe18b7d2f40be1fa90d25e2b6aee3f4dffb1b45126a42bf6eaab`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7E17	10504 bytes

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