Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e8f196942becc86…

MALICIOUS

PDF

72.1 KB Created: 2020-07-30 01:25:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e746624c1d3bb96df22bee767f777971 SHA-1: 2711ecc9bc68b597b547d8dd12dbc31449bdd524 SHA-256: 1e8f196942becc86a64c7803f5075641f60928083c3acde6858fd83210906f91
130 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm, suggesting an attempt to direct users to malicious content. The presence of a 'download button' lure further supports this. The primary malicious URL identified is a redirector, likely leading to a secondary malicious resource.

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.cc/pify?keyword=aha+acls+manual+pdf+free+download
    • http://files.ashworkerstraininghub.com/uploads/1/3/2/7/132740838/dasika-remuwabip-zogoviresamelo.pdf
    • http://files.dagcamera.com/uploads/1/3/1/3/131398195/menovawoxorojuwo.pdf
    • http://files.grandvilleayso.org/uploads/1/3/1/4/131406075/faduvil-jelobokopok-zidumilojotabas-xaxiv.pdf
    • https://cdn.shopify.com/s/files/1/0436/9930/6648/files/68515759827.pdf
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/22555623435.pdf
    • https://cdn.shopify.com/s/files/1/0432/6660/5209/files/59065853078.pdf
    • https://cdn.shopify.com/s/files/1/0428/3128/2335/files/kivufuzoxali.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57355052908.pdf
    • https://cdn.shopify.com/s/files/1/0435/3572/8794/files/66263180111.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97697777452.pdf
    • https://cdn.shopify.com/s/files/1/0429/8804/4447/files/7655217825.pdf
    • https://cdn.shopify.com/s/files/1/0440/2901/8262/files/fabevejatolefefukawo.pdf
    • https://cdn.shopify.com/s/files/1/0433/1582/2747/files/77384794873.pdf
    • https://cdn.shopify.com/s/files/1/0428/3046/3142/files/41835589952.pdf
    • https://cdn.shopify.com/s/files/1/0434/1792/7837/files/84058165048.pdf
    • https://cdn.shopify.com/s/files/1/0430/4453/6473/files/rafagigopejunelipakuvuzif.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_off0000ddb2.bin
d2089463f963d967aabe3f206c3c262400d66ac50dcd4518a2827c6d6f4c91b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDDB2 5232 bytes
font_01_sfnt_off0000ef5a.bin
cbdf216c4328d54323f85b9aed6ac80f6098664da2c17b26360f580b7dd1a8d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF5A 10608 bytes

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