Malicious PDF — malware analysis report

Static analysis result for SHA-256 69adc31e372884dc…

MALICIOUS

PDF

41.5 KB Created: 2020-10-16 14:39:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44435353453f9dce6c824e003f0b34fb SHA-1: 03fcad34f07096867aba6e6601ba33cdff914964 SHA-256: 69adc31e372884dc8a30a47afe3cd088d6ee43504ac5c57ddb84675952134287
194 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, with one critical link identified as a known malicious redirector. The document body, though partially corrupted, includes text related to PDF manipulation and the malicious URL, suggesting a lure to a phishing or scam site. The presence of a password-protected archive lure heuristic further indicates an attempt to bypass security controls by encrypting a malicious payload.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/123?keyword=unificar+muchos+pdf+en+uno
    • https://cdn-cms.f-static.net/uploads/4370066/normal_5f891fb289c98.pdf
    • https://cdn-cms.f-static.net/uploads/4366036/normal_5f8740be4cdc3.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0467/5387/4083/files/spartacus_vengeance_cast_change_naevia.pdf
    • https://cdn.shopify.com/s/files/1/0430/4430/7098/files/grand_canyon_university_cactus_apartments.pdf
    • https://cdn.shopify.com/s/files/1/0438/1255/2864/files/79994664861.pdf
    • https://cdn.shopify.com/s/files/1/0498/0611/4978/files/17943629343.pdf
    • https://uploads.strikinglycdn.com/files/e5f508fe-3964-40b0-a1dc-5e94f4d92206/46061285989.pdf
    • https://uploads.strikinglycdn.com/files/3acc1e29-5e36-4402-8ebd-a8f82639a9dd/76545787415.pdf
    • https://uploads.strikinglycdn.com/files/42917a29-87f1-436a-9b8c-10ac9714034f/sinip.pdf
    • https://cdn.shopify.com/s/files/1/0434/5806/8633/files/positive_words_that_start_with_ba.pdf
    • https://cdn.shopify.com/s/files/1/0468/8786/2429/files/69033942936.pdf
    • https://cdn.shopify.com/s/files/1/0438/3349/1606/files/49538036645.pdf
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/88115610979.pdf
    • https://uploads.strikinglycdn.com/files/ac5a343b-fc3a-4bdd-b226-56274a9baa78/bezij.pdf
    • https://uploads.strikinglycdn.com/files/b685c0c5-220d-42e0-8e65-490002ba9c23/tazawidozimo.pdf
    • https://uploads.strikinglycdn.com/files/b5ee29d4-4514-4e78-bbf1-c75469314728/39554030854.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.

FilenameKindSourceSize
font_00_sfnt_off00006351.bin
6a6629949ac19a0f58db5d77db47783207e1570ef172989d162d9a2a2d7b3225		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6351 5352 bytes
font_01_sfnt_off00007550.bin
c930e1fbb502ee5fc454c8708f2fb3113caa337837a9d0dd6e985c8287b0a3fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7550 10544 bytes

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