Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ade8d5507353f4d…

MALICIOUS

PDF

37.6 KB Created: 2020-08-22 08:25:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 229bc4815014a0e684b921ce410dc524 SHA-1: 7fc0c1c339b92be9f9a242126e2d45174a22887a SHA-256: 1ade8d5507353f4d840528e2f26d6e682d54884fc15556bfebc343422dfc0d9f
130 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating an attempt to drive traffic to potentially harmful sites. The presence of a 'download' lure further supports a malicious intent. The primary malicious URL identified is https://ttraff.com/pify?keyword=baixar+mapa+mundi+pdf, which is linked to a redirector.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=baixar+mapa+mundi+pdf
    • http://files.jasminmujanovic.com/uploads/1/3/1/3/131384229/52586ffa994.pdf
    • http://natopu.daveflynn.com/uploads/1/3/0/8/130873715/3f984b9.pdf
    • http://files.fatutoanutrition.com/uploads/1/3/1/4/131409709/217177b11.pdf
    • http://guluf.loisfaber.com/uploads/1/3/2/3/132302842/9412562.pdf
    • http://files.yorkriverpaddlechallenge.ca/uploads/1/3/2/6/132681901/bufimizogux-wibebijuwonode-fibezogenekexa-depoxemidavax.pdf
    • https://cdn.shopify.com/s/files/1/0431/8114/6280/files/249146987.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69262577592.pdf
    • https://cdn.shopify.com/s/files/1/0429/5829/1093/files/27510683748.pdf
    • https://cdn.shopify.com/s/files/1/0432/8924/7894/files/57463804637.pdf
    • https://cdn.shopify.com/s/files/1/0434/9054/1728/files/esc_guideline_valvular_heart_disease_2020.pdf
    • https://cdn.shopify.com/s/files/1/0432/7335/5424/files/8552907992.pdf
    • https://cdn.shopify.com/s/files/1/0429/7005/4805/files/public_speaking_and_civic_engagement.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74832969368.pdf
    • https://cdn.shopify.com/s/files/1/0436/9560/3865/files/bigoniwoxadipilesevoxa.pdf
    • https://cdn.shopify.com/s/files/1/0432/4245/5195/files/free_study_com_account.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_off000054bd.bin
53e79e014e8a651b97cd2f000ed7922ada32b46153b4e29bab0da1326904f758		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54BD 5092 bytes
font_01_sfnt_off000065fe.bin
a4ec6965ad3bcf74425b3f5275035fc66f3c0982bc31823e6c4833113f6b2c09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65FE 10768 bytes

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