Malicious PDF — malware analysis report

Static analysis result for SHA-256 95ab2c58b9d6bb9f…

MALICIOUS

PDF

42.4 KB Created: 2020-03-20 06:03:54 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3f8dbeb1d2532c34b713dba9880c7ca3 SHA-1: 0074b74ef95e942c471dca4babff5c11f3f9db1a SHA-256: 95ab2c58b9d6bb9fb557744b5e7bb766cb0bde42c06cbf7fede68185ac763b44
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a significant number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The primary URL points to 'http://pearlwirecompany.com/uploads/1/3/1/1/131164473/131164473.html#tipos+de+manubrio+moto+custom', which appears to be part of a link farm designed to manipulate search engine results or direct users to potentially malicious content hosted on numerous domains. No scripts were extracted, and the document body is heavily obfuscated, but the sheer volume of external links strongly suggests a malicious intent related to traffic redirection or hosting further stages of an attack.

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://pearlwirecompany.com/uploads/1/3/1/1/131164473/131164473.html#tipos+de+manubrio+moto+custom
    • http://www.qbedsandbedding.com/uploads/1/3/0/6/130622053/8b667686d42b.pdf
    • http://celebritytutoring.com/uploads/1/3/0/6/130640000/valewaduxaxujerojeju.pdf
    • http://mfxurw.pamperpetcare.com/uploads/1/3/0/9/130969195/3296c48278d455.pdf
    • http://mpautosales.co/uploads/1/3/0/7/130775076/2328923.pdf
    • http://www.mysteretro.com/uploads/1/3/0/5/130544070/2920648.pdf
    • http://greatamericanattorneys.com/uploads/1/3/0/2/130270956/nekizivakosatozanis.pdf
    • http://nextlevelproperties.org/uploads/1/3/0/7/130739218/328048950.pdf
    • http://wrighthouse.org/uploads/1/3/0/6/130604552/xebafaki_lesuxikopipejov.pdf
    • http://www.modernmarriedmillennial.com/uploads/1/3/0/6/130621856/razuvusumat.pdf
    • http://northshorepersonalcoaching.sydney/uploads/1/3/0/6/130604529/2060315.pdf
    • http://endofthecredits.com/uploads/1/3/0/3/130324065/sixasu_rawekimume_tolide_maxuwudenogo.pdf
    • http://shuyawalldesigns.com/uploads/1/3/0/4/130483373/326f0c55d61a9.pdf
    • http://sammiegeislerdpt.com/uploads/1/3/0/2/130270900/ce5f901c5c49.pdf
    • http://postmaster.rondomhetpark.com/uploads/1/3/0/5/130589101/7733138.pdf
    • http://www.rpgd.stefanaarnio.com/uploads/1/3/0/2/130272472/rupokuw.pdf
    • http://www.acnightmarket.com/uploads/1/3/0/6/130639283/muluxojarogaj-kukalemulixipen.pdf
    • http://granitemeister.com/uploads/1/3/0/2/130270951/2588118.pdf
    • http://kawaiiboutique1.com/uploads/1/3/0/6/130622007/1d304.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_off0000738d.bin
00b8292778e9b3ea90b98916c731120ea91e965d356974c0c840c24d6058ac36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x738D 8444 bytes
font_01_sfnt_off000092a4.bin
41d5c9cb4d60b7530e3cfd93a78efd430fe179aa57a8296e74fb8a971da4b0ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92A4 2600 bytes

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