Malicious PDF — malware analysis report

Static analysis result for SHA-256 70534727f2a260b5…

MALICIOUS

PDF

37.2 KB Authoring application: Scribus
MD5: 25397b4dd24a4328c8d16edd4ec10c37 SHA-1: d4d3a261a2b1439c68343c2033583025aef8f661 SHA-256: 70534727f2a260b5bbba5080edcc79d9a7bfae95df5dcc4d6475285e3fb7ee90
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, identified as a link farm, pointing to other PDF files. The document body, though partially corrupted, mentions workout plans and includes URLs that are likely part of a phishing or malware distribution scheme. The presence of embedded URLs and the ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' strongly suggest a malicious intent to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://pragmaticoncepts.net/uploads/1/3/0/2/130272361/bevanete.pdf
    • http://nitratodargento.com/uploads/1/3/0/6/130639178/kovowujelakido-wolagewil-loribo-kukuvutawirupa.pdf
    • http://nogginblock.net/uploads/1/3/0/5/130590391/b34a64.pdf
    • http://ilearnfaster.com/uploads/1/3/0/3/130323477/dodugifu-tawumeziz.pdf
    • http://mirrormirrorministries.com/uploads/1/3/0/5/130551256/48151a30f77.pdf
    • http://everettgroupconsulting.com/uploads/1/3/0/3/130324419/xopifubiruka_wedijonojewo_jirobabojari_guvejulu.pdf
    • http://mvbruinsoccer.com/uploads/1/3/0/2/130271154/15ce73.pdf
    • http://boostersnetwork.com/uploads/1/3/0/4/130435844/jerulex.pdf
    • http://ncstoragebarns.com/uploads/1/3/0/3/130323997/656794.pdf
    • http://rhinesville.com/uploads/1/3/0/7/130739155/waxorafepaxivaji.pdf
    • http://remarkablecanine.com/uploads/1/3/0/7/130776521/9101eb03ae679e.pdf
    • http://ilovefatjack.net/uploads/1/3/0/7/130739814/5652436.pdf
    • http://jamesbrown4judge.com/uploads/1/3/0/2/130287946/lomab.pdf
    • http://ucfshirt.com/uploads/1/3/0/4/130488445/2164469.pdf
    • http://smallstuff.info/uploads/1/3/0/8/130814121/bb7a027.pdf
    • http://twoboxguys.com/uploads/1/3/0/5/130588659/3f0b144f40ee.pdf
    • http://ctcommunications.com/uploads/1/3/0/6/130604377/batalenonali.pdf
    • http://katletki.com/uploads/1/3/0/6/130605380/fezidalenaxetosazu.pdf
    • http://meshayla.com/uploads/1/3/0/3/130324350/130324350.html#gym+workout+plan+for+female+weight+loss

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000034b5.bin
501ceefde16939f344bfe17836bbab4bed18d3451ce50cd3b302941017ffc031		 pdf-font-stream PDF embedded font (sfnt) at offset 0x34B5 7604 bytes

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