Malicious PDF — malware analysis report

Static analysis result for SHA-256 78af8a7079dfb33d…

MALICIOUS

PDF

40.2 KB Created: 2020-04-09 08:26:32 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5e0914f011b6868dcb429fdb69a3c4cc SHA-1: 9e709ab128afc477347ec4a7ab76ae8d9ff7b073 SHA-256: 78af8a7079dfb33d0b0b7f65e24b79e2f0766ca63f5652d3719e602add3d8c72
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 poisoning or to redirect users to malicious sites. The document body, though partially obfuscated, suggests a job posting lure. The primary heuristic identified a link farm of PDF documents, indicating a coordinated effort to distribute malicious content. The embedded URLs are likely used to host further stages of an attack or to phish for credentials.

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://passionistsglasow.com/uploads/1/3/0/6/130621324/130621324.html#perfil+de+puesto+auxiliar+administrativo+contable
    • http://remonty-heops.pl/uploads/1/3/1/1/131163623/095eca9.pdf
    • http://barbarareadelcpc.com/uploads/1/3/0/6/130603747/pegonegasefonik_jubibomozadivaf_rezotiger.pdf
    • http://santafesoulfestival.org/uploads/1/3/0/7/130739852/4368137.pdf
    • http://mysoundcollective.com/uploads/1/3/0/6/130605302/3799719.pdf
    • http://makeupandhairbyrenee.org/uploads/1/3/0/9/130969904/68904.pdf
    • http://coolingaround.com/uploads/1/3/0/8/130873986/todegizati.pdf
    • http://pjauthor.com/uploads/1/3/0/7/130776423/192ab0.pdf
    • http://foothillhorseandpet.com/uploads/1/3/0/3/130379164/nutulipemima_fawazip_zazar_jigagor.pdf
    • http://blueraspberryscarves.com/uploads/1/3/1/4/131438324/fagogijomumez.pdf
    • http://recoversooner.org/uploads/1/3/0/2/130289630/9531326cf36.pdf
    • http://pioneervalleyaco.com/uploads/1/3/0/5/130539105/103939.pdf
    • http://wnjsupplies.com/uploads/1/3/1/4/131452977/tifigezalajuzu-wufig-zenoriguvovu-vegonowebux.pdf
    • http://diecast-hobbies.com/uploads/1/3/0/5/130543640/d5f14b0f6f2b.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_off00007456.bin
1bdf14afde3cca244b4342bd1172f8814bcb1d0769103447c548a46ab4279776		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7456 8004 bytes

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