Malicious PDF — malware analysis report

Static analysis result for SHA-256 da2d2dca97db4194…

MALICIOUS

PDF

41.9 KB Authoring application: Soda PDF
MD5: 1a1fb14180189e882fe4ec930907d876 SHA-1: 751cb51eb527322ae0d7811a6efe69c21ff13ba1 SHA-256: da2d2dca97db419423a75d78f94a4059fadc1940fbdadc52bd6a019535be87d7
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malware. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body, though partially corrupted, suggests a lure related to resignation letters, which is a common social engineering tactic.

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://goodinform.com/uploads/1/3/0/7/130776687/busujefuluwuwok.pdf
    • http://iqcu.biz/uploads/1/3/0/7/130775878/xitikutazake_bakofemipaxifu_wuselagefono_fesulajabexesu.pdf
    • http://anewyoubeauty.co.nz/uploads/1/3/0/3/130313316/d5b6bad.pdf
    • http://vegamala.net/uploads/1/3/0/5/130588816/xisuzobipovade.pdf
    • http://nashmortgage.com/uploads/1/3/0/2/130291352/006e0f4b059.pdf
    • http://alterationstotnes.com/uploads/1/3/0/5/130539249/tideteganij.pdf
    • http://tractortrailerrepairrichmond.com/uploads/1/3/0/6/130639583/riresub-demuwaxevera.pdf
    • http://nfsparts.com/uploads/1/3/0/4/130476413/570126.pdf
    • http://lopolis.net/uploads/1/3/0/2/130273850/nufunulobexero.pdf
    • http://drdiagnostico.com/uploads/1/3/0/6/130603809/luvaluni_luxegogekezu.pdf
    • http://coleinvestigations.com/uploads/1/3/0/2/130273617/fuwunut.pdf
    • http://myskinfit.com/uploads/1/3/0/8/130874389/959ca764d89.pdf
    • http://realmpg.us/uploads/1/3/0/6/130639763/a02b3bfe8ab.pdf
    • http://amityschuyler.com/uploads/1/3/0/8/130814907/3a0e74d37b6f.pdf
    • http://msalaya.com/uploads/1/3/0/5/130544230/vazaxevatukanul.pdf
    • http://dekastanje.nl/uploads/1/3/0/5/130588426/9127835.pdf
    • http://pattayapropertymanagement.com/uploads/1/3/0/5/130588333/a1f6c7.pdf
    • http://logicaldesigner.net/uploads/1/3/0/2/130287965/6215c6.pdf
    • http://clevershowers.com/uploads/1/3/0/7/130739072/luwepoxalet_lowumenur.pdf
    • http://ledlandscapelightingsource.com/uploads/1/3/0/7/130739802/zumorid.pdf
    • http://andamiaoficial.com/uploads/1/3/0/8/130815097/jakopa-dunemuxek-faravuboradavo.pdf
    • http://edenamelia.com/uploads/1/3/0/5/130590717/vitogetajelamu.pdf
    • http://readyforretirement.net/uploads/1/3/0/6/130639449/gowevejelenutas.pdf
    • http://antiviruseprotectserviceonline.site/uploads/1/3/0/6/130621937/130621937.html#example+of+resignation+letter+for+work
    • http://tractort

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003f9b.bin
133211b7e53c6c5b2c079c4fb41e9ab83ff7a280ef752d5ad7a4a39cd255203e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3F9B 8584 bytes

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