Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8f13e7b94f7f243…

MALICIOUS

PDF

112.6 KB Created: 2020-08-04 19:26:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5683634e16af30a1dc3bf8cf90d79bcd SHA-1: 8295e29d3d77e6e7eba7a49912e2b6b3f79acdba SHA-256: c8f13e7b94f7f243c3b4c033818bbbcbf2638448b6cc5165659c6b16102c8825
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains a reference to the malicious URL. This suggests a phishing or redirection attack aimed at leading users 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.ru/pify?keyword=biblia+de+jerusalen+catolica+pdf
    • http://files.honeymaice.com/uploads/1/3/0/9/130969885/lavogo_lawodatoda_jivosife.pdf
    • http://files.drheatherloenser.com/uploads/1/3/1/6/131606360/mamivalofe-dufexobos-dazisaf-wupebanaxano.pdf
    • http://files.bambooartscenter.com/uploads/1/3/1/8/131857071/pujeriwetid-napofemerumaw.pdf
    • http://files.jesipace-berkeley.com/uploads/1/3/1/4/131452961/7947286.pdf
    • http://files.walkercateringco.ca/uploads/1/3/1/6/131606854/pijapaxibebi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8294/8506/files/35318762423.pdf
    • https://cdn.shopify.com/s/files/1/0433/2063/9646/files/xegozazujafalanufesaj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9334/4924/files/684777890.pdf
    • https://cdn.shopify.com/s/files/1/0435/1878/7743/files/dubai_country_code.pdf
    • https://cdn.shopify.com/s/files/1/0437/5638/8510/files/wiwavarisu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9549/0721/files/71019102745.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/nuselejebifulozameka.pdf
    • https://cdn.shopify.com/s/files/1/0431/3920/3229/files/12609313143.pdf
    • https://cdn.shopify.com/s/files/1/0428/0333/1231/files/81117350702.pdf
    • https://cdn.shopify.com/s/files/1/0428/9606/4671/files/personification_worksheets_grade_3.pdf
    • https://cdn.shopify.com/s/files/1/0438/3621/1362/files/77285405873.pdf
    • https://cdn.shopify.com/s/files/1/0431/4277/4938/files/sewijapabivatexax.pdf
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/safevegiborilibazukeli.pdf
    • https://cdn.shopify.com/s/files/1/0431/9982/4032/files/94386835568.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_off00017acd.bin
cf46e06a0abdc2001edc276780d8a34ba69fb0cdbca72fd9cc83ae6a1eca1b69		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17ACD 5416 bytes
font_01_sfnt_off00018d45.bin
b016245b631a98efc4e9dcf46737053c9c3ec1ef79e5a903e817fbdb3e932436		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18D45 11708 bytes

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