Malicious PDF — malware analysis report

Static analysis result for SHA-256 83a07db01e4016f3…

MALICIOUS

PDF

94.2 KB Authoring application: Soda PDF First seen: 2020-09-07
MD5: 6d29ef48eea8bb048f146cb4097d7062 SHA-1: 70d4569f35929f73d43770540fc7369f86821430 SHA-256: 83a07db01e4016f350182cf1a6e18b79af106a8c500139851114a3d88915bedf
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external websites, many of which are algorithmically generated and appear to be part of a link farm. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or distributing further malware. No scripts were extracted, but the structure suggests the document's primary purpose is to redirect users to malicious content hosted on these external domains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 4

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://nextbuildingforum.com/uploads/1/3/0/5/130547728/3646521.pdf In PDF document text
    • http://swat1806.com/uploads/1/3/0/6/130639273/6035150.pdfIn PDF document text
    • http://www.jakehandelman.com/uploads/1/3/0/7/130775354/boviweg.pdfIn PDF document text
    • http://cisna.org/uploads/1/3/0/3/130379769/5710019.pdfIn PDF document text
    • http://thedjkurx.com/uploads/1/3/0/6/130621200/zasifegetepif.pdfIn PDF document text
    • http://zjliu.org/uploads/1/3/0/2/130274330/387dfb.pdfIn PDF document text
    • http://mypartypro.net/uploads/1/3/0/6/130621095/lokijizepelibe-kalivizaweboxim.pdfIn PDF document text
    • http://paddlebp.com/uploads/1/3/0/5/130543207/dbcc3a.pdfIn PDF document text
    • http://paulsfavoritestuff.com/uploads/1/3/0/8/130814065/xenajod-xatudofami-gugegijoz-duzere.pdfIn PDF document text
    • http://koawarriors.com/uploads/1/3/0/5/130550944/gakeramitositi.pdfIn PDF document text
    • http://swoapy.com/uploads/1/3/0/6/130621394/sowerowonovafumor.pdfIn PDF document text
    • http://live4inspiration.com/uploads/1/3/0/4/130483550/592914.pdfIn PDF document text
    • http://rscrystalmedicine.com/uploads/1/3/0/5/130551202/5775633.pdfIn PDF document text
    • http://percorsidarte.com/uploads/1/3/0/3/130313585/kinusejage_warifipum_lazonujulof_pepomi.pdfIn PDF document text
    • http://thesortexfortress.com/uploads/1/3/0/7/130740068/c5d6484918bd61.pdfIn PDF document text
    • http://reenchant.com/uploads/1/3/0/5/130544725/1123554.pdfIn PDF document text
    • http://sefpay.com/uploads/1/3/0/2/130272266/rosigipesawodi-vibuvevodaj-rurut.pdfIn PDF document text
    • http://www.makeartsforabetterlife.org/uploads/1/3/0/4/130483396/dadekawezadasoxufig.pdfIn PDF document text
    • http://lasvegasquicklane.com/uploads/1/3/0/3/130323656/fesuwivumura.pdfIn PDF document text
    • http://testchangelawyers.org/uploads/1/3/0/8/130813357/0305e515ccafe71.pdfIn PDF document text
    • http://u-ehs.com/uploads/1/3/0/4/130477533/5593372.pdfIn PDF document text
    • http://www.spencercasephilosophy.com/uploads/1/3/0/6/130639017/d8321.pdfIn PDF document text
    • http://magnoliastravelandtouradventures.voyagerwebsites.com/uploads/1/3/0/3/130379757/130379757.html#html+input+file+accept+xls+xlsxIn PDF document text
    • http://www.adobe.com/).NotoIn PDF document text
    • http://www.google.com/get/noto/http://www.adobe.com/type/ThisIn PDF document text
    • http://scripts.sil.org/OFLNotoIn PDF document text

Related samples 2

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_001_off000044b2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x44B2 68568 bytes
SHA-256: ae5f38093d94314874748f751612ec623cf471a057f049b9650695671c71f016
font_01_sfnt_off00010eca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ECA 9388 bytes
SHA-256: b3f201598b4f81c91b81e047a1c0f69968b5c0f47875ffc3ff420f71504e4645

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