Malicious PDF — malware analysis report

Static analysis result for SHA-256 f02a9ea963ff77ae…

MALICIOUS

PDF

49.3 KB Created: 2020-10-08 00:02:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 22106a09b0e2e7697cc25d85feb5ada1 SHA-1: 304a6429c15bdaa183e829385527ce80b015e01b SHA-256: f02a9ea963ff77ae0acafcdbd80ffd7fb7db3ad6325681e86f62905d933b8064
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ggtraff.ru/pify?keyword=phi+delta+epsilon+uc+davis'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of a malicious URL within the document body strongly suggests an attempt to lure the user to a compromised site, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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/pify?keyword=phi+delta+epsilon+uc+davis In PDF document text
    • http://rubuxela.intimationsdance.org/uploads/1/3/1/3/131397997/wuvuput.pdfIn PDF document text
    • http://files.bilboshappypaws.com/uploads/1/3/0/7/130738875/bupebux-dexukuparelexiv-kolewafi.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/1/0499/9014/0064/files/magic_photo_editor_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/0003/2164/files/blessed_be_god_prayer_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1380/5992/files/otis_offender_search_ohio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9022/4300/files/im_a_goofy_goober_roblox_id.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd65c9da-3cf0-49f0-b3af-ee72dc7e3401/18436603326.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afe5273f-e827-492d-85dd-45c765c1ac4c/97889088675.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a726ad9-94de-4786-a61b-f0b479a36989/zizajabaritevimavafowufo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61b71d40-ef52-4ac8-b612-074724aad359/nobigago.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8d5481d-ee5c-4900-ab04-ba95283bc1ec/judilawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/2082/2939/files/download_mario_64_source_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/4890/6135/files/antigone_full_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3799/0805/files/addition_and_subtraction_word_problems_grade_2.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_off000074bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74BD 5128 bytes
SHA-256: 44b384a09122e9ab4d723295c3c393df2e823867c285d46a045a558d0f2d2a00
font_01_sfnt_off00008637.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8637 15956 bytes
SHA-256: ce2e246d7fe484e724611968445dcd66c4550e81e654b9f47d629dd25fbb0573

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