Malicious PDF — malware analysis report

Static analysis result for SHA-256 9573d54977dfdc4e…

MALICIOUS

PDF

47.2 KB Created: 2020-10-15 02:45:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: b6079132f534294432e64673c85983b8 SHA-1: 7f4eda8b341f70c13f60bfdf200440d578bd8b69 SHA-256: 9573d54977dfdc4e5fc25c304ecdd6460f7acff8abeeef612558e7b64fe93171
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically pointing to 'ggtraff.ru'. The document body, though heavily obfuscated, contains a URL that matches the one identified by the heuristic. This suggests the primary purpose is to redirect users to a malicious site, likely for phishing or further malware delivery.

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://ggtraff.ru/123?keyword=pf+form+15g+pdf+file+download In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366365/normal_5f878b96c1ca1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367635/normal_5f876aedc71a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365553/normal_5f86f641b75d1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366348/normal_5f87544bd659f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366343/normal_5f873cb8c4398.pdfIn PDF document text
    • https://site-1043289.mozfiles.com/files/1043289/81780132480.pdfIn PDF document text
    • https://site-1037881.mozfiles.com/files/1037881/joriru.pdfIn PDF document text
    • https://site-1042938.mozfiles.com/files/1042938/41726025887.pdfIn PDF document text
    • https://site-1040427.mozfiles.com/files/1040427/lafajabigaxiraxemerulise.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367305/normal_5f87826a32d88.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366044/normal_5f876acee3c78.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365636/normal_5f86fa195b37c.pdfIn PDF document text
    • https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/595029.pdfIn PDF document text
    • https://tekegalesi.weebly.com/uploads/1/3/0/7/130740489/87ea97398.pdfIn PDF document text
    • https://dirigesibujov.weebly.com/uploads/1/3/0/9/130969991/degitotevub-kusuvojivop-bomiwejirex-xelafusapij.pdfIn PDF document text
    • https://tudupumodowi.weebly.com/uploads/1/3/1/4/131406798/vixezuxapa-texewenagig-dewuxukazavi.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/1/0434/3165/7624/files/53967099850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/2744/2075/files/u-46_transportation_number.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/6682/5115/files/stellar_evolution_webquest_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1114/3842/files/ap_lang_frq_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/0313/0268/files/jutexegijuzawuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3876/0342/files/3199565903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8049/9879/files/dirirevisaxexuwopiwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0216/6933/files/tigil.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_off000079a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79A0 5452 bytes
SHA-256: 34ccd004bdc62871bf7e03695635b5efcacf885259c07feca7fa101f281397d6
font_01_sfnt_off00008c30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C30 10148 bytes
SHA-256: d73ecd80ca1a6e2279193ed8601e9079dfde48f0e63186fafc338747f7c83062

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