Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e1a5331b58c1e72…

MALICIOUS

PDF

69.5 KB Created: 2020-07-09 05:19:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a9f4c3d2fe90edefa73d61ea05ba088c SHA-1: 7466134ca3236238a6fb9e933f8425ceb5f45575 SHA-256: 2e1a5331b58c1e72299ddaa75534277ddb887bcaf72ac73615bcd80a46ec4360
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Domesday book translation pdf' and references the redirector URL. The presence of a large number of external PDF links suggests a link farm or SEO spamming operation, likely intended to drive traffic to malicious sites or distribute further malware. 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.ru/wb?keyword=domesday%20book%20translation%20pdf
    • http://files.smilecommunicationsgroup.com/uploads/1/3/2/6/132681002/vebevemiru.pdf
    • http://files.wbarlhighlandranch.com/uploads/1/3/0/8/130874018/1057f3.pdf
    • http://files.katyschutte.co.uk/uploads/1/3/1/3/131384279/zupejomikedem.pdf
    • http://files.efungpstours.com/uploads/1/3/0/7/130775134/94d09.pdf
    • http://files.myartscreations.com/uploads/1/3/0/9/130969301/5773958.pdf
    • http://files.famhealth.com/uploads/1/3/1/1/131163705/3705088.pdf
    • http://files.lydiaslegacy.com/uploads/1/3/1/4/131453056/togubalafasema_zigakuv.pdf
    • http://files.nagyboldizsar.hu/uploads/1/3/1/4/131407665/malirid-vufabawom-masokas.pdf
    • http://files.forhisreign.org/uploads/1/3/0/9/130969004/0a4bb2b57c.pdf
    • http://files.mnjeweler.com/uploads/1/3/1/4/131437740/fomurogoxufirofaliz.pdf
    • http://files.myartscreations.com/uploads
    • https://buzuboxovova.files.wordpress.com/2020/06/taxoxel.pdf
    • https://gipiwes.files.wordpress.com/2020/07/2364578986.pdf
    • https://xebamobakur757036922.files.wordpress.com/2020/06/vobufosiwefulo.pdf
    • https://jezowiv.files.wordpress.com/2020/07/buzoxide.pdf
    • https://depivufegel.files.wordpress.com/2020/07/xonafomuvodejowoxabe.pdf
    • https://depivufegel.files.wordpress.com/2020/06/85573369612.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12729031526.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wugituvunajobi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zutazalurofesavasa.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/25668779603.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49726552648.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_off0000d1d7.bin
92e15e6111f8551cb68586c222462dbc32dca040482ff0624b0a9c4c6024d47d
pdf-font-stream PDF embedded font (sfnt) at offset 0xD1D7 5280 bytes
font_01_sfnt_off0000e3b7.bin
d9245177c16ba0c8313a965e6cae8d938a79840b4acbccf4ecee97d26c2ccbcf
pdf-font-stream PDF embedded font (sfnt) at offset 0xE3B7 11092 bytes