Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1bc37a98786194d…

MALICIOUS

PDF

41.1 KB Created: 2020-08-08 19:30:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b265a3413ad920439ced2bf42b9e147 SHA-1: b8be85d001aeaee9b4082d7f5946bb947d1af6c3 SHA-256: e1bc37a98786194d833d55c0b0990222c1e61d17d3df55e5d5aedbcf2cf6bc9e
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the same URL, suggesting it is the primary lure. The PDF appears to be part of a link farm designed to drive traffic to malicious infrastructure.

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=capacity+planning+and+control+in+operations+management+pdf
    • http://files.specialedu4parents.com/uploads/1/3/1/4/131438616/847184f3d2.pdf
    • http://newux.theballroomdanceprogram.com/uploads/1/3/1/8/131856158/7872277.pdf
    • http://files.utrgvalpfa.org/uploads/1/3/0/7/130775917/8448382.pdf
    • https://cdn.shopify.com/s/files/1/0428/9649/0663/files/49532191002.pdf
    • https://cdn.shopify.com/s/files/1/0430/1019/5605/files/49348304440.pdf
    • https://cdn.shopify.com/s/files/1/0432/7096/3350/files/27308708343.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5469/files/kigepefilu.pdf
    • https://cdn.shopify.com/s/files/1/0440/6640/6550/files/13469375425.pdf
    • https://cdn.shopify.com/s/files/1/0428/5494/0828/files/rofiku.pdf
    • https://cdn.shopify.com/s/files/1/0430/1992/7713/files/kufewojififovenijiwegix.pdf
    • https://cdn.shopify.com/s/files/1/0432/6319/7347/files/52564047856.pdf
    • https://cdn.shopify.com/s/files/1/0434/0459/1254/files/rejinelovupazizenalo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8179/files/puderibajalilinipukibeve.pdf
    • https://cdn.shopify.com/s/files/1/0435/8039/1585/files/panupamikapikux.pdf
    • https://cdn.shopify.com/s/files/1/0428/7699/3702/files/python_game_code_snake.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_off000062af.bin
e85d3ede9cfa48015c0da527858506fcb52a60afa43af6f4c996b431a0ca1ef0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62AF 5484 bytes
font_01_sfnt_off00007542.bin
254c4e3396f516bf3194228c2881afbc930bc18a1aec70f73787b0f259100975		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7542 9884 bytes

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