Malicious PDF — malware analysis report

Static analysis result for SHA-256 32c663bb4d2a0582…

MALICIOUS

PDF

42.0 KB Created: 2020-10-07 22:30:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 24c2926c6f59886d00d9be4012e68dad SHA-1: e1ae4457a35610fe10d07cc713a13e796606397c SHA-256: 32c663bb4d2a0582a9889f6eca9af83f63adb99961c08836051a10ba3a04d1ed
154 Risk Score

Malware Insights

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

This PDF file contains embedded links that redirect to a malicious URL, masquerading as a "Star Trek Online Weapons Guide". The presence of numerous external links, including one to a known malicious redirector, indicates a likely attempt to lead users to harmful content. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or redirection attack, likely delivered as a spearphishing attachment.

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.club/pify?keyword=star+trek+online+weapons+guide In PDF document text
    • https://site-1036680.mozfiles.com/files/1036680/68792004804.pdfIn PDF document text
    • https://site-1038311.mozfiles.com/files/1038311/mojasavufaxoj.pdfIn PDF document text
    • https://site-1039303.mozfiles.com/files/1039303/35807384018.pdfIn PDF document text
    • https://site-1039535.mozfiles.com/files/1039535/20841638732.pdfIn PDF document text
    • https://site-1039783.mozfiles.com/files/1039783/35587270947.pdfIn 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/537f0d90-7c01-4532-973a-a2a0ed4c8634/fewebedisisozovirufumub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f2583bf-6410-4b3c-af6f-c86397c4b0c3/83820338625.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23a880a5-a501-426c-9a85-9db3c6902f85/lomom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/572b3018-4ffc-47bb-a74b-ac5fdbe64924/fuporabisojitukozisak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e34fe363-fddf-46f7-bb95-62255f1c0269/penigil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7118/4794/files/led_zeppelin_one_album.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7319/files/xukuxulizilov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5727/4270/files/pillow_tft_lcd_color_monitor_operating_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/6247/2091/files/96009598211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7492/9319/files/rapid_cash_las_vegas_nv_locations.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_off00006623.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6623 5384 bytes
SHA-256: 7d1c8d45b768d46ec54a0a3e7f91bdb9cf4e7ba7c125f375e5bcb5c74313b949
font_01_sfnt_off00007895.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7895 10224 bytes
SHA-256: 50213da65f5e633ec9c9c116a25a46795a6ed488a3c14ea6ffa090d14ee8cabe

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