Malicious PDF — malware analysis report

Static analysis result for SHA-256 9295eb3034f05dfa…

MALICIOUS

PDF

45.9 KB Created: 2020-10-29 12:42:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: c7bc8c25a4885b0b8279012967eba63c SHA-1: 34fbf465ba252def6a920c072bc4eb15a7a47a0a SHA-256: 9295eb3034f05dfa20819f95bbb1b97a5a335b612c41cfbebc013e93e6bf5675
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple links, including one that redirects to malicious infrastructure, specifically advertising a download for 'kingroot 6.0.1'. The ML classifier strongly indicated maliciousness, and the presence of a download button lure further supports a malicious intent. The document's primary function appears to be a lure for downloading potentially unwanted or malicious software.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://cctraff.ru/aws?keyword=download+apk+kingroot+6.0.1 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4424646/normal_5f995ccf1afa9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387577/normal_5f978d52c9948.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376375/normal_5f8f639ec6a15.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371498/normal_5f8df38da80d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367005/normal_5f97855d9f002.pdfIn PDF document text
    • https://texitanoz.weebly.com/uploads/1/3/0/7/130739996/e4b0c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426073/normal_5f97abce7ac3b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366360/normal_5f8723f6e7d0e.pdfIn PDF document text
    • https://fadusoga.weebly.com/uploads/1/3/0/7/130739873/dezasujul_kirolowepepuvab.pdfIn PDF document text
    • https://buveziketi.weebly.com/uploads/1/3/1/3/131398526/a0fc8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383131/normal_5f8f55ba56fbd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370778/normal_5f953d7f235d9.pdfIn PDF document text
    • https://pirivelel.weebly.com/uploads/1/3/4/5/134505874/d9d46721f4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/7952/7321/files/proyecto_de_reforma_laboral_2020_mexico.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31e00790-7976-4563-a05d-c501649927c6/hail_storm_dallas_tomorrow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75d2bcc8-3021-4a11-9616-647932fd5400/fomuginefenelakepej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d57b8e35-d39e-40c4-8ffe-f80a89deee2c/92596128793.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8911/0208/files/tiwovimawubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4361/8965/files/list_wod_crossfit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/3441/8586/files/12360182574.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1801b5e2-0f35-4a08-b2da-109e47de15b4/9821098955.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c324f659-0d06-4f14-9514-920c79bb6b5b/kuletudevovimevogiw.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.

FilenameKindSourceSize
font_00_sfnt_off000072b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72B2 5484 bytes
SHA-256: 7132833f32d7934cc29566265db3fee7f9d32700cf3e5a1eb4be542f39bc3ddd
font_01_sfnt_off00008593.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8593 10808 bytes
SHA-256: a44d8993acb72a6c5950b87be4f9267c0420a4b6570c97a814c94fecd870ff47

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