Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a9224fa50f095fa…

MALICIOUS

PDF

46.2 KB Authoring application: pstoedit
MD5: 9c89b5171ac1af13f34cf3a43bab987b SHA-1: 512cf9418735fae64802ff20def92e4d8762e5e8 SHA-256: 7a9224fa50f095fa50fce17c6b3ab9b3f476f2a60944aad44157e6602a16d116
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. The critical PDF_SEO_LINK_FARM heuristic fired, revealing a large number of embedded external links to other PDF files. These links are likely used to distribute further malicious content or lead users to phishing pages. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://illumina.implementation.collectivehealth.com/uploads/1/3/0/2/130289546/nosavewizebeka-melazefu.pdf
    • http://sanjosedelosreynoso.com/uploads/1/3/0/4/130435791/kufibijagex.pdf
    • http://mynetclouds.com/uploads/1/3/0/8/130874411/e0470f4aa96.pdf
    • http://dragons-media.com/uploads/1/3/0/5/130538956/8129305.pdf
    • http://paulushookcafe.com/uploads/1/3/0/6/130620791/cdaf9.pdf
    • http://assessmentsystemscorporation.com/uploads/1/3/0/4/130435745/20a79.pdf
    • http://jaminspiraedu.com/uploads/1/3/0/8/130815008/9238272.pdf
    • http://asmallundertaking.com/uploads/1/3/0/3/130313046/pumuk-dejugivez.pdf
    • http://www.hcs-conference.com/uploads/1/3/0/3/130323212/1818784.pdf
    • http://jaclassicandsports.com/uploads/1/3/0/4/130476447/5e81b9.pdf
    • http://peoplesgoldmine.com/uploads/1/3/0/5/130590177/7651879.pdf
    • http://urbanabstract.art/uploads/1/3/0/5/130539338/rumafivax-basediximivad-zenibunolaxa.pdf
    • http://jsconsultingmaui.com/uploads/1/3/0/9/130969829/luranosokevamu.pdf
    • http://mlmbigmoney.com/uploads/1/3/0/6/130604859/pujuwu.pdf
    • http://www.septictankpumpinggwinett.com/uploads/1/3/0/5/130546657/wovenazosev.pdf
    • http://ooredooalgeria.net/uploads/1/3/0/3/130379912/bc13fcb.pdf
    • http://talaldaoud.com/uploads/1/3/0/6/130620961/bulepaxuxotumovenezo.pdf
    • http://fotoboy.org/uploads/1/3/0/6/130639693/bixal.pdf
    • http://mrssheltonsclassroomeghs.com/uploads/1/3/0/7/130739068/2493980.pdf
    • http://revelationsmagazine.com/uploads/1/3/0/3/130313531/dugob_vuzekapejel_lebinepoba.pdf
    • http://loureview.com/uploads/1/3/0/6/130621439/4766873.pdf
    • http://www.kelseycurrent.com/uploads/1/3/0/9/130969614/dirudanamifub-vobel-jajejojagajulu.pdf
    • http://casaservicesfinanciers.com/uploads/1/3/0/5/130550713/43546e7b63d982.pdf
    • http://countrymusicpromo.com/uploads/1/3/0/6/130604585/fb18ba31765e623.pdf
    • http://danielstorage.com/uploads/1/3/0/2/130289655/23c9a9e361472d.pdf
    • http://abraxasroots.org/uploads/1/3/0/3/130324241/130324241.html#aam+ka+achar+kaise+banaya+jata+hai+video+bataye

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ee6.bin
07c73be30eb34948e74f52f70ebe7fddcf8d7968b2f44a68d1202150632f322e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE6 16444 bytes
font_01_sfnt_off0000449e.bin
83459e82cebe561b9e65dda6a09953c9e35f75e5df0fa62a624e1833cc5b8086
pdf-font-stream PDF embedded font (sfnt) at offset 0x449E 1708 bytes
font_02_sfnt_off00004fa4.bin
1c2b7cee688207bdc344548700762ad236bc18c9169b0fbe3fbad23e7405fc13
pdf-font-stream PDF embedded font (sfnt) at offset 0x4FA4 7968 bytes