Malicious PDF — malware analysis report

Static analysis result for SHA-256 609f30806e72dc16…

MALICIOUS

PDF

49.1 KB Created: 2020-08-29 17:41:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62440e013121cc8dfa71d6004c9a5e8f SHA-1: 2350bb66aed8b09e49e2c7cfa548f22dac27f364 SHA-256: 609f30806e72dc16184a37a00c2b0ed7e7134c339879c69c700234957dcc502e
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on Shopify and other domains. One of the primary links, https://ttraff.ru/wix?keyword=breakthrough+2019+mp4, is flagged as a malicious redirector. This suggests the document is designed to lead users to potentially harmful websites, likely as part of a phishing or scam campaign. No scripts were extracted, but the presence of numerous links and the malicious redirector indicate a high likelihood of malicious intent.

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.ru/wix?keyword=breakthrough+2019+mp4
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0428/7276/6631/files/kosewanedisazox.pdf
    • https://cdn.shopify.com/s/files/1/0434/1389/7368/files/angel_theory_of_a_deadman.pdf
    • https://cdn.shopify.com/s/files/1/0429/0537/0787/files/boxoranogadopika.pdf
    • https://cdn.shopify.com/s/files/1/0433/1415/1589/files/74181401432.pdf
    • https://cdn.shopify.com/s/files/1/0431/3032/3101/files/46361371552.pdf
    • https://static.usrfiles.com/ugd/1e4819_091c441fc0274a4d8e1e5fd2160d2c67.pdf
    • https://static.usrfiles.com/ugd/b8c837_40f6f4ca71f74898a515a2598ec36831.pdf
    • https://static.usrfiles.com/ugd/e3834b_e9f9655a9b2741e3b76fc4a01d5f332f.pdf
    • https://static.usrfiles.com/ugd/b8c837_fc64a79bd1e343d5a31e14258736a2f3.pdf
    • https://cdn.shopify.com/s/files/1/0433/9122/1911/files/a_thousand_years_cello_sheet_music_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/1224/4134/files/19662414331.pdf
    • https://cdn.shopify.com/s/files/1/0438/6127/8870/files/72628496056.pdf
    • https://cdn.shopify.com/s/files/1/0433/9413/8268/files/29708475655.pdf
    • https://cdn.shopify.com/s/files/1/0429/3482/9223/files/right_heart_failure_guidelines_2016.pdf
    • https://cdn.shopify.com/s/files/1/0430/0704/9887/files/eat_stop_eat.pdf
    • https://cdn.shopify.com/s/files/1/0438/2277/6480/files/rujimoxana.pdf
    • https://cdn.shopify.com/s/files/1/0433/6500/7509/files/88414778369.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064f2.bin
db73527d040135625b1764ba2a6ba3061486ce4010dd6211401ed7c14a0ebd6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64F2 3452 bytes
font_01_sfnt_off00007179.bin
c263db14b834a70488d36e2997631bbc4ade379b042893451fed86b472173736		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7179 5432 bytes
font_02_sfnt_off00008406.bin
f277206dc755f970954b4e94b84e280e502fb82f18bd241e7979d058139b7615		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8406 10748 bytes
font_03_sfnt_off0000a8b9.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA8B9 4324 bytes

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