Malicious PDF — malware analysis report

Static analysis result for SHA-256 e97fdb208d3ffb20…

MALICIOUS

PDF

41.5 KB Created: 2020-08-01 09:30:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 055fc2b6af14b973c9654e3c39224acf SHA-1: 07aa8a90700c79bb46de221024e87837ca6304b9 SHA-256: e97fdb208d3ffb20465a18ff293cfceddc59ad7ca377ab6c8622b935c57951b2
150 Risk Score

Malware Insights

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

The PDF file contains a lure related to a '2004 Honda Accord manual' and embeds a link that redirects to malicious infrastructure. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms that the embedded link points to a known malicious redirector. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, suggesting a spam or SEO poisoning campaign. No scripts were extracted from this sample.

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=2004+honda+accord+manual
    • http://files.projectyouthextension.com/uploads/1/3/1/6/131606755/guraved-babaderasuti-nujemilarojo.pdf
    • http://files.heritagehousepreschool.com/uploads/1/3/1/0/131070508/8541401.pdf
    • http://files.deepsouthbasketball.ca/uploads/1/3/0/7/130740011/bivonotinada-jigip-jevebiru.pdf
    • https://cdn.shopify.com/s/files/1/0439/8632/1566/files/juvorejudemobepi.pdf
    • https://cdn.shopify.com/s/files/1/0438/6072/1829/files/75578242657.pdf
    • https://cdn.shopify.com/s/files/1/0433/0808/9509/files/87727425682.pdf
    • https://cdn.shopify.com/s/files/1/0428/6991/5814/files/nemiveroparelaxu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/sqlalchemy_truncate_table.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44411244229.pdf
    • https://cdn.shopify.com/s/files/1/0438/6524/3803/files/vurevurimipibakaz.pdf
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/85648219424.pdf
    • https://cdn.shopify.com/s/files/1/0428/5287/6455/files/94439842479.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8007882555.pdf
    • https://cdn.shopify.com/s/files/1/0432/4805/8536/files/farevunexatikufugopanufun.pdf
    • https://cdn.shopify.com/s/files/1/0430/8277/6729/files/63751292937.pdf
    • https://cdn.shopify.com/s/files/1/0438/2529/9613/files/didolulid.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_off00006537.bin
3052105ae94f4d2554c40f287cc1dd33a47c89b032e184d0d380b41b93f74a61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6537 5268 bytes
font_01_sfnt_off000076f7.bin
80bf0ff2ba71aeea10d0ef3a515db02628c492428a14f1e1b4d0501dd26ef4b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76F7 10104 bytes

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