Malicious PDF — malware analysis report

Static analysis result for SHA-256 573b7294c018dc83…

MALICIOUS

PDF

38.2 KB Created: 2020-04-25 05:24:00 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: a3fbe81755095f96d484fc791cb5772f SHA-1: c7f0b4a813c2d532ddee91bc504339459c8ec8fb SHA-256: 573b7294c018dc83cf3f573f895a0850c664f9a10cf895925a8096c65e510222
82 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The heuristic PDF_SEO_LINK_FARM specifically identified this behavior, noting 28 external PDF links. The presence of the 'SE_QR_LURE' heuristic suggests a potential QR code phishing attempt, further indicating a social engineering vector. The document body contains garbled text and what appears to be metadata, but the primary malicious intent is derived from the extensive link farm.

Heuristics 4

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://limitlessautoandsales.com/uploads/1/3/0/5/130589040/130589040.html#aadhaar+uidai+app
    • http://santoshawarrior.net/uploads/1/3/1/4/131406708/vesoj.pdf
    • http://tuplusvalia.com/uploads/1/3/0/5/130589131/zafizobap.pdf
    • http://balibargainflights.com/uploads/1/3/0/4/130488098/7095208.pdf
    • http://emiliafeliz.com/uploads/1/3/0/5/130545681/9acdf4.pdf
    • http://lenanleslie.com/uploads/1/3/0/7/130775306/dapujebeduwaxekuduve.pdf
    • http://phoebefortune.com/uploads/1/3/0/5/130539438/wuvezebixarevum-vesetopiwulawa-bexavekoxedix.pdf
    • http://chinanco.com/uploads/1/3/0/2/130291702/tabekew-volajerexutaxet-vodonewen-gezedozasi.pdf
    • http://debrajaeger.com/uploads/1/3/1/4/131453255/8099648.pdf
    • http://polarreel.com/uploads/1/3/0/4/130435652/wuluzaz-kojavobomiligar-zufak-doxutowarirax.pdf
    • http://anahyattmovementcom.com/uploads/1/3/0/6/130639973/676ea3.pdf
    • http://itransportstorage.com/uploads/1/3/1/4/131438556/nanutasomuwag.pdf
    • http://qualitymain.com/uploads/1/3/1/6/131636689/xixojot_wuwezonox_favuk_vunajonope.pdf
    • http://pictimagery.com/uploads/1/3/0/9/130969940/sonovapejikoju.pdf
    • http://englishpamphlets.com/uploads/1/3/0/5/130551331/nixurugumesijek_vogovegewebel_lukoxuro_voxowiviju.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d4b.bin
66501baacda8e40b3b9d4e782007a356f73e3511c6c051238846cb5cb0614543		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D4B 8168 bytes

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