Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa1f698bcf3f8007…

MALICIOUS

PDF

52.4 KB Authoring application: Soda PDF First seen: 2020-09-24
MD5: 7301a9ad62bfe1ca6d0609b864b892b7 SHA-1: c07f2977ca1d8509906241995501f10561e5599c SHA-256: aa1f698bcf3f8007030faa6854ab3b0edb8454c84b252ad0bad4b8c1367cc9c4
152 Risk Score

Malware Insights

MITRE ATT&CK
T1204.001 User Execution: Malicious Link T1566.002 Phishing: Spearphishing Link

The sample is a PDF containing a high volume of external links (31 total) to other PDFs hosted on disparate domains, triggering the PDF_SEO_LINK_FARM heuristic. The document body contains nonsensical text and binary data, which is typical of SEO spam designed to deceive search engines rather than human readers. ClamAV has flagged this as Pdf.Phishing.TtraffRobotInstall, indicating a known phishing pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://doodlebugblessingsgoldendoodles.com/uploads/1/3/0/7/130776408/muximobepu.pdf In PDF document text
    • http://leslielutes.net/uploads/1/3/0/6/130639268/poledisugolodod-vekesipavonovak-duxusanujivo.pdfIn PDF document text
    • http://mta-sts.mail.hava.biz/uploads/1/3/0/6/130604855/257942.pdfIn PDF document text
    • http://coastalbarn.com/uploads/1/3/0/5/130543121/1793048.pdfIn PDF document text
    • http://smartestbusinessmodel.com/uploads/1/3/0/5/130543057/8903106.pdfIn PDF document text
    • http://gayflava.com/uploads/1/3/0/4/130488506/velapi.pdfIn PDF document text
    • http://mx.dirtysoapmusic.com/uploads/1/3/0/4/130477605/vepelo.pdfIn PDF document text
    • http://thebarrenashville.com/uploads/1/3/0/6/130605217/lupisud.pdfIn PDF document text
    • http://norcalsetac.net/uploads/1/3/0/5/130589220/2507764.pdfIn PDF document text
    • http://tinytikibar.com/uploads/1/3/0/4/130435592/wakaduxegutupok.pdfIn PDF document text
    • http://thequiltstudio.com/uploads/1/3/0/2/130287894/753653.pdfIn PDF document text
    • http://skydwellers.com/uploads/1/3/0/5/130589288/2589259.pdfIn PDF document text
    • http://soullinks.org/uploads/1/3/0/6/130621501/5894251.pdfIn PDF document text
    • http://kulshanclayworks.com/uploads/1/3/0/6/130604402/bonasir.pdfIn PDF document text
    • http://sakislowe.com/uploads/1/3/0/4/130476045/7124551.pdfIn PDF document text
    • http://5foot1ninja.com/uploads/1/3/0/6/130605069/xigiziwirozij.pdfIn PDF document text
    • http://equipajedemano.com/uploads/1/3/0/2/130289265/6679324.pdfIn PDF document text
    • http://vivienne-egan.com/uploads/1/3/0/5/130539412/tapavaxised-moliwaxaf-kiwexi-ximolulibevoko.pdfIn PDF document text
    • http://cakedesignsbyjanie.com/uploads/1/3/0/4/130489564/3298932.pdfIn PDF document text
    • http://mrstruitt.com/uploads/1/3/0/3/130379151/130379151.html#dolce+gusto+jovia+water+tankIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001093.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1093 9308 bytes
SHA-256: 5ea54bb9dad764ae5ea84b031b4b38ac799ab5755d33e35d8c5e22eab7a24d67