Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebe31478e254b9c2…

MALICIOUS

PDF

42.6 KB Created: 2020-08-31 19:03:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b6f5d9312345c81437eef6a824096f1a SHA-1: ea65a594256711c63784f0619a437b452848814e SHA-256: ebe31478e254b9c2c442f265b1adee36e98f459c9562a8096c7522d77a4bf2b6
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a prominent link that redirects to a malicious domain, disguised with text related to passport applications. This indicates a phishing or scam attempt. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the malicious nature of the redirector URL. The ML_NYX_PDF_MALICIOUS score further supports the malicious classification.

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.
  • 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.
  • 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.com/wix?keyword=passport+application+form+online+registration+official
    • https://cdn.shopify.com/s/files/1/0431/3815/4653/files/computer_accounting_with_quickbooks_2015.pdf
    • https://cdn.shopify.com/s/files/1/0429/6173/1743/files/careful_what_you_wish_for_parents_guide.pdf
    • https://cdn.shopify.com/s/files/1/0448/0411/2545/files/zomemanegupewegegivuroji.pdf
    • https://cdn.shopify.com/s/files/1/0430/4607/6565/files/zasikemiranagenuko.pdf
    • https://cdn.shopify.com/s/files/1/0433/1179/2286/files/xajexiwebugusimumizegotix.pdf
    • https://cdn.shopify.com/s/files/1/0431/2619/4330/files/business_studies_class_11_ncert_download.pdf
    • https://cdn.shopify.com/s/files/1/0464/2819/2920/files/cassandra_3_tuning_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/7600/1704/files/84697928776.pdf
    • https://cdn.shopify.com/s/files/1/0434/5177/7185/files/15668169397.pdf
    • https://cdn.shopify.com/s/files/1/0427/5834/0774/files/clocks_coldplay_cello_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0431/2737/3986/files/87334507394.pdf
    • https://cdn.shopify.com/s/files/1/0432/4130/8319/files/sec_1_english_editing_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0445/6172/7647/files/exalted_cheat_sheet.pdf
    • https://static.usrfiles.com/ugd/e78b77_69c4011db60044509641657990977a5c.pdf
    • https://static.usrfiles.com/ugd/79e0dc_31889e0cbf6b4a8a9eea1ee973123380.pdf
    • https://static.usrfiles.com/ugd/c1615c_4404840e7caf4dd8a9877e996b4c7e91.pdf
    • https://static.usrfiles.com/ugd/58a813_f0443acfc86241eab7c4e986b8dbbff6.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b14.bin
50434487becfead92ebb3d6fe37fd371f37f8c47c3611eff6209497ef3c114ab
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B14 5124 bytes
font_01_sfnt_off00006c62.bin
4d8a38377c6a759ccf91103e2bf4e9987a796eecf8897f248e04c1f6323bb38f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C62 10096 bytes
font_02_sfnt_off00008efb.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x8EFB 4324 bytes