PDF malware analysis — malicious · 28a265ffd2be5b95

MALICIOUS

PDF

44.9 KB Created: 2020-10-29 02:40:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: d5d7f8bcba56871d7a428d030182694f SHA-1: 11aab8c670275f9866ac642a2056f9619590d42f SHA-256: 28a265ffd2be5b95cb1fb3b989e5f29e6f358fd179b76a751d8cad885b7c6680

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a link to a known malicious redirector, disguised with a seemingly innocuous keyword. The PDF also hosts a large number of external links, suggesting it's part of a link farm designed to manipulate search engine results or distribute malicious content. The ML classifier strongly indicates maliciousness, and the embedded 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://gettraff.ru/123?keyword=one+direction+meet+and+greet+experience In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/83c8b921-bcf0-4253-afff-5300d33fdba9/gusesonozodonikadeji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0499/9230/2752/files/simplest_form_worksheets_6th_grade.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6929/0149/files/54653963725.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0481/7669/3397/files/epub_to_converter_portable_download.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ec514b4c-6af6-4426-a2a1-27a895b72e76/27031888561.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6f4fdc1a-c630-46e9-b3c7-749a4cacf22f/55945018890.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0483/4328/5923/files/84637698715.pdfIn PDF document text
- https://s3.amazonaws.com/lanorolowu/mapa_fisico_de_africa_para_imprimir.pdfIn PDF document text
- https://s3.amazonaws.com/bokexizometun/always_remember_us_this_way_piano.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1ecb361a-988f-46ca-b811-151b4841150c/noreen_renier_books.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0501/3120/6301/files/android_build.gradle_implementation_vs_compile.pdfIn PDF document text
- https://s3.amazonaws.com/jamokaroxoj/18376320279.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/aaccb143-412a-4ab2-a776-8302eafd833f/nirumavimirimij.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e68adca8-fc62-4222-be71-226c162401f6/god_has_a_plan_for_your_life_the_discovery_that_makes_all_the_difference.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ca2dda30-3961-4ca0-9c07-3586e013c086/britannica_encyclopedia_android_apk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5418/6146/files/aprendizaje_visual_definicion.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2d2e052a-1cb7-4083-a8cd-e27c58200819/fnaf_at_the_krusty_krab.pdfIn PDF document text
- https://s3.amazonaws.com/kitakilesa/20828495357.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0486/4979/7790/files/nissan_forklift_mcp1f2a25lv_parts_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e7084e33-f810-449a-8983-6b3395930b92/cajones_de_cimentacion_definicion.pdfIn PDF document text
- https://s3.amazonaws.com/zirojopemup/38794446611.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6007b06d-0186-4c19-b2b8-fde80200cd33/56687087664.pdfIn PDF document text
- https://s3.amazonaws.com/nonabafat/network_security_tools.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006f3e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6F3E	5280 bytes
SHA-256: `7f14e1d06282187bf7a35147d143cbe7ff0c65ee3f361c90f185044c52449175`
`font_01_sfnt_off0000811b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x811B	10876 bytes
SHA-256: `b3d10c2ff5be191cc6944c86d8b534922550cf2ce2a0967dad5e9f7976d93a62`

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