Malicious PDF — malware analysis report

Static analysis result for SHA-256 035529f6b519a062…

MALICIOUS

PDF

44.5 KB Authoring application: pdf-parser
MD5: 0cc47c27b5d56d8e8116a70458353671 SHA-1: 7cf029dcfb14c6f7000283343f6d5e0edcd1448b SHA-256: 035529f6b519a06233647b7ac20ff9060799be6cd912dc282f6af6d1f209ce9f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm, which is a common technique for distributing malicious content or conducting phishing attacks. The ClamAV detection and ML classifier further support its malicious nature. The embedded URLs are likely intended to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://bayviewblast.com/uploads/1/3/0/2/130289320/zikadewawu-xaveviwupumibu.pdf
    • http://ladyandthegeek.net/uploads/1/3/0/3/130312971/vizugapuribivipem.pdf
    • http://noddfw.com/uploads/1/3/0/4/130478772/828b0c3aee1561.pdf
    • http://villarebate.net/uploads/1/3/0/5/130589000/701299.pdf
    • http://mightyjunior.com/uploads/1/3/0/3/130379331/lugevason.pdf
    • http://nadinesteklenski.com/uploads/1/3/0/7/130776032/77b28773d.pdf
    • http://clearstonesolutions.net/uploads/1/3/0/4/130478163/makuweguvimin-rapibomugovoz-tojozogoz-dunakokul.pdf
    • http://nuecescanyonlodge.com/uploads/1/3/0/6/130603916/73659.pdf
    • http://birthingbreechbabies.com/uploads/1/3/0/4/130435755/8519404.pdf
    • http://ohdearsboutique.com/uploads/1/3/0/2/130289232/7185417.pdf
    • http://thevidtip.com/uploads/1/3/0/6/130621859/1572264.pdf
    • http://geowims.com/uploads/1/3/0/7/130739625/kabujoru.pdf
    • http://smoothtransitionservices.com/uploads/1/3/0/7/130776158/sogikubirimix_somatonux_moturudu_wexudilu.pdf
    • http://modemarketingsolutions.com/uploads/1/3/0/5/130590763/zosuworumi_mezunanewosod.pdf
    • http://myclarendonhills.com/uploads/1/3/0/6/130639160/kijivulimusepimo.pdf
    • http://addtomemory.com/uploads/1/3/0/5/130539238/cd118a7a.pdf
    • http://misssantaclara.com/uploads/1/3/0/2/130274269/1787079.pdf
    • http://wcd-4k4esn.mgh-r.ch/uploads/1/3/0/8/130873944/130873944.html#how+to+make+a+3d+pdf+in+bluebeam
    • http://www.adobe.com/).Noto
    • http://www.google.com/get/noto/http://www.adobe.com/type/This
    • http://scripts.sil.org/OFLNoto

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003d05.bin
0fd54560a5af28844638532377069e1a9a90458e86862e165410a8836bd81af5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3D05 9604 bytes
font_01_sfnt_off00005c23.bin
afd8868629b61d85ec32a8a0de1ca84da82d48156cdd7447d7c4f51403cf5149		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C23 5244 bytes

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