Malicious PDF — malware analysis report

Static analysis result for SHA-256 48baeb0cf5ac10d0…

MALICIOUS

PDF

48.8 KB Created: 2020-08-25 15:55:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b4d6cc910702f8abed28772a2f5f792e SHA-1: 45e0e217c6305e23c41274d614172c8ce89d5aec SHA-256: 48baeb0cf5ac10d0fc303e634e4df5bed7b739b0cc70b6eb0c44870953cba016
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass external link farm, with many links pointing to Shopify domains and one critical link to a known malicious redirector. The redirector URL is 'https://ttraff.cc/pify?keyword=lineage+2+revolution+kamael+apk', which likely serves as a lure to download further malicious content. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=lineage+2+revolution+kamael+apk
    • http://files.sachdevwc.com/uploads/1/3/1/3/131398292/dalerox.pdf
    • http://files.dconleyphotography.com/uploads/1/3/1/8/131856353/fewefix.pdf
    • http://files.cobbdaylily.com/uploads/1/3/1/4/131406258/wudevu_gimolebefunuz_fowefirefu.pdf
    • http://lukis.stjames114.org/uploads/1/3/1/4/131406821/9608d6f1aaf.pdf
    • http://zakabox.extratimeconcierge.com/uploads/1/3/0/7/130775565/fc095a32a7.pdf
    • https://cdn.shopify.com/s/files/1/0435/4398/6340/files/lusejule.pdf
    • https://cdn.shopify.com/s/files/1/0431/3926/8770/files/57018034614.pdf
    • https://cdn.shopify.com/s/files/1/0428/8803/6505/files/minexori.pdf
    • https://cdn.shopify.com/s/files/1/0433/1392/2206/files/92103169069.pdf
    • https://cdn.shopify.com/s/files/1/0430/4565/0586/files/kukoruwafosevun.pdf
    • https://cdn.shopify.com/s/files/1/0432/6824/3624/files/barisan_dan_deret_sma_kelas_11.pdf
    • https://cdn.shopify.com/s/files/1/0433/0625/4504/files/bunubibadixunegaderujosib.pdf
    • https://cdn.shopify.com/s/files/1/0428/5923/3443/files/22567890005.pdf
    • https://cdn.shopify.com/s/files/1/0431/0191/3244/files/laxolivofi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69892687871.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e9c.bin
af54aaca335c2da39b8de8fb69fbd57c6f3af80224d32845301dff8eb45a8285		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E9C 5040 bytes
font_01_sfnt_off00006fb5.bin
54fb20bac16125e0c604b1adfca2cae4c8a6a40e0292d307fa3f25d1fd273c64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB5 10324 bytes
font_02_sfnt_off00009300.bin
d8a1a34de14a7b8fce5e51635835121d353d188f9ac9ce1e11538509fd4c5cdc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9300 16060 bytes
font_03_sfnt_off0000a798.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA798 4324 bytes

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