Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d5a13cbb98fddf5…

MALICIOUS

PDF

36.0 KB Authoring application: Pdftk First seen: 2020-09-04
MD5: ee55f46563f2c52dc05d8a70aca0763b SHA-1: 623fb48756337bec3e0dee5ae775cb14f9722768 SHA-256: 7d5a13cbb98fddf5c6483a01bd79aad78fc636ea5e9d6f405ff900454c7b6149
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique commonly used for SEO poisoning or to distribute malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery. Although no scripts were explicitly extracted, the embedded URLs are the primary indicators of compromise.

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://dftransportes.com/uploads/1/3/0/7/130739602/4650885.pdf In PDF document text
    • http://britemoonmarketing.com/uploads/1/3/0/4/130436188/seturu-wefoturirariwu.pdfIn PDF document text
    • http://ubs-taxfree-puertorico.com/uploads/1/3/0/2/130270831/lakozi.pdfIn PDF document text
    • http://ohanaguidance.com/uploads/1/3/0/6/130604515/finaragudozan.pdfIn PDF document text
    • http://bayareasomaticpsychotherapy.com/uploads/1/3/0/3/130323602/473130c2.pdfIn PDF document text
    • http://msidec.com/uploads/1/3/0/2/130291838/61e18e8e3.pdfIn PDF document text
    • http://nelancasterhub.org/uploads/1/3/0/8/130814643/muxekax.pdfIn PDF document text
    • http://howmuchtrip.com/uploads/1/3/0/7/130775245/sapodixokufeg.pdfIn PDF document text
    • http://swimprofessionals.co.nz/uploads/1/3/0/7/130739930/49481357b72dc.pdfIn PDF document text
    • http://slsfnc.com/uploads/1/3/0/2/130271081/xixinisasuvemu-xirodapomej-sitafu.pdfIn PDF document text
    • http://cinn-fullydelicious.com/uploads/1/3/0/4/130477414/8068693.pdfIn PDF document text
    • http://monicatunnell.com/uploads/1/3/0/6/130620492/nuder.pdfIn PDF document text
    • http://clogdancing.me/uploads/1/3/0/6/130620712/5136636.pdfIn PDF document text
    • http://momentumva.com/uploads/1/3/0/6/130622092/0be38d.pdfIn PDF document text
    • http://freecourts.com/uploads/1/3/0/7/130775751/lexivaloxi_piguwaluzu.pdfIn PDF document text
    • http://drewgrahamart.com/uploads/1/3/0/4/130477613/c935433.pdfIn PDF document text
    • http://sarasotabicycles.com/uploads/1/3/0/5/130551253/7237727.pdfIn PDF document text
    • http://fashiontrendingstyles.com/uploads/1/3/0/5/130551864/dd105e56.pdfIn PDF document text
    • http://countrystylebbqcatering.com/uploads/1/3/0/6/130604002/sekow-luvexekiziwifo.pdfIn PDF document text
    • http://3vgfj.bpmtc.com/uploads/1/3/0/2/130270812/130270812.html#chlamydia+test+kit+maleIn PDF document text

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002eb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB1 7804 bytes
SHA-256: 2305f00fa7e3ddb65171bbb0a94a1b9b38c39a37aea293ef58cde5c549b74a2e

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