Malicious PDF — malware analysis report

Static analysis result for SHA-256 e99e70acbbe68875…

MALICIOUS

PDF

41.5 KB Created: 2020-08-10 21:59:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e275d1ee3e48d35ceb73ff436759f66 SHA-1: 97a9b2acf661d0153f45fa734eea6c1a26ab774e SHA-256: e99e70acbbe68875badfab72603b8176543f3245801e6d8c85f48a493a2dffdb
120 Risk Score

Malware Insights

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

The PDF contains numerous links, with a primary link pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=cahier+de+vacances+pdf+cm1+cm2'. This suggests a phishing or scam attempt, leveraging the appearance of educational content to entice clicks. The presence of a link farm heuristic further supports the malicious intent of distributing malicious links.

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/pify?keyword=cahier+de+vacances+pdf+cm1+cm2
    • http://files.speechhighway.com/uploads/1/3/1/4/131453219/xebukate_firek_gesozixewetif_sobit.pdf
    • http://files.g1muzic.com/uploads/1/3/1/4/131454190/164638.pdf
    • http://dupupani.valeriesplayhouse.com/uploads/1/3/1/6/131606490/zilatur_viwaxazetuk.pdf
    • http://files.mirrormath.org/uploads/1/3/1/1/131164153/mofaz.pdf
    • https://cdn.shopify.com/s/files/1/0434/8762/5369/files/pearl_necklace_meme.pdf
    • https://cdn.shopify.com/s/files/1/0432/6830/9152/files/pokemon_yellow_gameshark_codes.pdf
    • https://cdn.shopify.com/s/files/1/0440/5762/4726/files/14959772232.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/vbspu._ac._in_result_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/5394/8836/files/53672517598.pdf
    • https://cdn.shopify.com/s/files/1/0431/7741/0724/files/72065702046.pdf
    • https://cdn.shopify.com/s/files/1/0431/3815/4650/files/46334005380.pdf
    • https://cdn.shopify.com/s/files/1/0432/5824/9380/files/dekapawuke.pdf
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/dixewuzijisopusivobape.pdf
    • https://cdn.shopify.com/s/files/1/0429/8620/9439/files/gagipe.pdf
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/les_infortunes_de_la_belle_au_bois_dormant_ekladata.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f9f.bin
7dcf574f32904c971932c7e93eb4ee999445f36b79caa71ef04ef7daebf8a9d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F9F 5512 bytes
font_01_sfnt_off00007244.bin
ea2694a2844c8bb5ee56dde781747486f9d0a1b23b05d2962165083847d136a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7244 11764 bytes

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