Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd1a50007d3de125…

MALICIOUS

PDF

47.5 KB Created: 2020-08-15 22:38:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b67aec9a28b0addc3c95551c99fad04c SHA-1: bf10d5f00cf61b8975a8c19c4101c984384910a7 SHA-256: bd1a50007d3de1259a597da1d34def676be7b80f12b2d24e5109b39469df63f1
150 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific redirector URL, indicating a phishing or scam attempt. The document body, though partially corrupted, suggests a lure related to an 'APC smart-ups 750va manual'. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=apc+smart-+ups+750va+manual
    • http://files.dmawarenessmi.com/uploads/1/3/0/8/130813135/1924522.pdf
    • http://nuwoje.concoursllc.us/uploads/1/3/0/9/130969754/6937173.pdf
    • http://files.tibasolar.com/uploads/1/3/1/6/131637928/rizelivowegiza_fugif_zaberajejabi_xiniga.pdf
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/40361726846.pdf
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/gagifinij.pdf
    • https://cdn.shopify.com/s/files/1/0430/5184/3737/files/library_planner_template.pdf
    • https://cdn.shopify.com/s/files/1/0433/7300/2906/files/24729396203.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/doxufuvezemog.pdf
    • https://cdn.shopify.com/s/files/1/0429/8627/4977/files/kikafemigikazudakovomivaf.pdf
    • https://cdn.shopify.com/s/files/1/0431/3464/8482/files/maxefasevudepugibon.pdf
    • https://cdn.shopify.com/s/files/1/0434/6563/8050/files/bunchems_instruction_guide.pdf
    • https://cdn.shopify.com/s/files/1/0427/4041/6678/files/human_body_parts_name_with_picture.pdf
    • https://cdn.shopify.com/s/files/1/0433/6081/3208/files/46610262912.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000576b.bin
faa14a7760e009f5e9f82de0609da94bffdc2769edae7a3f4e9cc45134c1e0a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x576B 5508 bytes
font_01_sfnt_off00006a1e.bin
76a0030ed86bc3ec25ffeaa33b5628eefbba457bce0a82f098503a0cab252693		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A1E 15376 bytes
font_02_sfnt_off000099c0.bin
ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x99C0 16164 bytes

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