Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d6acdec7788c389…

MALICIOUS

PDF

37.2 KB Created: 2020-03-25 14:51:19 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 40b6b0e3d0bc90a53bc1b0c655edd519 SHA-1: dac22de2e65e87e226f7b60960b31b9b65bb027f SHA-256: 2d6acdec7788c389669796d505ecc24136bfe2389444d8e988a6e28ed02000d5
62 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 identifies this behavior, indicating a likely attempt to distribute or host further malicious content. The document body contains a seemingly innocuous title but is heavily obfuscated, suggesting the primary purpose is not content delivery but rather the embedded links.

Heuristics 3

  • 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.
  • 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://muzikataviemsvetkiem.com/uploads/1/3/1/3/131384555/131384555.html#letra+de+la+cancion+catolica+danos+un+corazon+grande+para+amar
    • http://donate.shieldedhearts.org/uploads/1/3/0/7/130776370/tegalejemirinu.pdf
    • http://millerjohnsonmedia.com/uploads/1/3/0/6/130621700/c7d129dc.pdf
    • http://ruralfirecomps.com/uploads/1/3/0/6/130604882/xefekizilid.pdf
    • http://vinculum.info/uploads/1/3/0/5/130539309/8f3f06b5a5.pdf
    • http://elevatetutoring.com/uploads/1/3/0/6/130620887/wakulabuta_bokewixetedezap_nexakowefe_puxuvuzoken.pdf
    • http://craftchampion.com/uploads/1/3/0/4/130489564/kunofepigidi.pdf
    • http://daycareinsanrafael.com/uploads/1/3/0/7/130740612/784b3376e0b9c37.pdf
    • http://cpanel.sheknowsadventure.com/uploads/1/3/0/3/130313183/1722987.pdf
    • http://canvasbykatie.com/uploads/1/3/0/7/130776500/kewus.pdf
    • http://www.rfwhilephotos.com/uploads/1/3/0/8/130874591/4bf73.pdf
    • http://nishinlodge.com/uploads/1/3/0/2/130289580/xotonesemomigu.pdf
    • http://longtermemergencyfoodsupply.com/uploads/1/3/0/6/130604636/takajawofuwuvezor.pdf
    • http://sjvschoolbr.org/uploads/1/3/0/5/130588845/ruxoj_maxutadu_moduwaraw_mewisuj.pdf
    • http://mylenechoquette.com/uploads/1/3/0/5/130590273/torisagik.pdf
    • http://youngscientistsandinnovators.com/uploads/1/3/0/4/130436141/020afccd6fe3df6.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_off000063eb.bin
bdcd1fc158dfad92e96798cb1f5e78ab411edf7ceae2efcfc118121dfc3faeca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63EB 9884 bytes

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