Malicious PDF — malware analysis report

Static analysis result for SHA-256 959593868709c16d…

MALICIOUS

PDF

50.0 KB Created: 2020-04-02 08:39:14 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 59574722bcd06a931becd1d668c4c6d0 SHA-1: e0d8fb139cb044250332f2ca0649bb7c6320274d SHA-256: 959593868709c16d1b3c9bab3617a947041b05a7651991270f6c168fe8f4434e
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or redirection scheme. The document body, though heavily obfuscated, contains references to some of these URLs. No scripts were extracted from this sample. The primary attack pattern appears to be directing users to a multitude of external sites.

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://raytastics-light.com/uploads/1/3/0/2/130288552/130288552.html#limits+involving+inverse+trigonometric+functions
    • http://fishbowllabs.com/uploads/1/3/0/6/130620222/sodivujanirefav-guganoj-buzebu-barosudupe.pdf
    • http://islandstyledelivery.com/uploads/1/3/0/2/130270748/viminafamulapi.pdf
    • http://hochatown.org/uploads/1/3/0/5/130543276/4071694.pdf
    • http://chocny.com/uploads/1/3/0/7/130738890/a4ae31.pdf
    • http://iuber.ca/uploads/1/3/0/7/130739315/nopujobojujisag.pdf
    • http://aworldinneed.org/uploads/1/3/0/5/130550873/bagasejuwuxag.pdf
    • http://hippiegypsylife.com/uploads/1/3/0/9/130969835/kivepivux-tugofewinolato-dujinesote-wavegaku.pdf
    • http://odesignit.com/uploads/1/3/1/1/131164266/loxapusi-sojulipem.pdf
    • http://boneyardmusicpublications.com/uploads/1/3/0/6/130621918/91d225e115d8d.pdf
    • http://visionsportsphotography.net/uploads/1/3/0/5/130541346/pekodesur.pdf
    • http://rememberproperty.com/uploads/1/3/0/2/130271001/tisabarawe-kopunevujiluvi-lurufomod-wafojovugepezi.pdf
    • http://webmail.dance4joy.info/uploads/1/3/1/4/131452745/6424062.pdf
    • http://purchasesupport.us/uploads/1/3/0/7/130738603/674840.pdf
    • http://neparemovals.com/uploads/1/3/0/8/130814597/209382.pdf
    • http://ellemboutique.net/uploads/1/3/0/6/130639884/lutatebivozelif.pdf
    • http://swansonfitness.net/uploads/1/3/0/6/130640021/db58c6576ef9.pdf
    • http://naturalfitnessvt.com/uploads/1/3/0/3/130313746/fezufafun.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000078be.bin
027ed514145ba6276142d22b0952bf6610c3d46825069adccb984a984b138a4d
pdf-font-stream PDF embedded font (sfnt) at offset 0x78BE 8572 bytes
font_01_sfnt_off000099b1.bin
db056d6b75001de5db1a3468c5d064d74740f4b0d9fc0843f21179ce511eb003
pdf-font-stream PDF embedded font (sfnt) at offset 0x99B1 2852 bytes
font_02_sfnt_off0000a3d7.bin
eef5421b7a88df54701d46e1720ddf78bcce8135432c13043835010f12c9bb92
pdf-font-stream PDF embedded font (sfnt) at offset 0xA3D7 16204 bytes