Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea586a9b63040912…

MALICIOUS

PDF

44.9 KB Created: 2020-08-06 21:34:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51cb6ab447ff542986db4ca76659e025 SHA-1: 8932f1de3b49707f9bad102a72d39dfc6c84bea3 SHA-256: ea586a9b630409123480b602015aef595599803768bff792f4621aa4b3908940
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains a URL that matches this redirector. This suggests the document's primary purpose is to redirect the user to a malicious site, likely for further exploitation or phishing. No scripts were extracted, limiting the analysis of the exact payload.

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.ru/pify?keyword=vocabulaire+juridique+fran%25C3%25A7ais+espagnol+pdf
    • http://files.dearborn411.com/uploads/1/3/2/7/132740860/xokagilo.pdf
    • http://files.elsarozendal.com/uploads/1/3/0/8/130813325/rejakisevaxajokevela.pdf
    • http://files.mckinneypressurewashing.com/uploads/1/3/1/4/131438539/toxekunemo-kezapu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0122/5114/files/1961778257.pdf
    • https://cdn.shopify.com/s/files/1/0434/2392/4376/files/antimicrobial_activity_of_neem.pdf
    • https://cdn.shopify.com/s/files/1/0433/3161/6923/files/81274719993.pdf
    • https://cdn.shopify.com/s/files/1/0434/3444/2908/files/gaxikokevuw.pdf
    • https://cdn.shopify.com/s/files/1/0430/6000/2967/files/cub_scout_whittlin_chip.pdf
    • https://cdn.shopify.com/s/files/1/0438/8962/3208/files/wuwulonezumasolusupurito.pdf
    • https://cdn.shopify.com/s/files/1/0431/3687/6695/files/les_outils_d_amlioration_continue.pdf
    • https://cdn.shopify.com/s/files/1/0428/1293/2255/files/wetafisuromo.pdf
    • https://cdn.shopify.com/s/files/1/0428/1594/6911/files/5_practices_for_orchestrating_mathematical_discussions.pdf
    • https://cdn.shopify.com/s/files/1/0427/9681/0396/files/5913843744.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/
    • https://cdn.shopify.com/s/files/1/04

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ddd.bin
9a4954cb5977fba0f7f94fbf099c38fb27ea7053a123763e83cbb61b0a9e4667		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DDD 5812 bytes
font_01_sfnt_off00008168.bin
3dc05ba1d8d3c14853268515d9cbecbb31761b6d6096810c361929236019551b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8168 10696 bytes

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