Malicious PDF — malware analysis report

Static analysis result for SHA-256 149a07ab4c0cc123…

MALICIOUS

PDF

37.7 KB Authoring application: SWFTools
MD5: 9214c5065c027df3c64be58087b11eac SHA-1: 0a116444417f6739e928a7271abea98b281ba0a6 SHA-256: 149a07ab4c0cc12318cd9437c3aac571efc07447d724cf74f3968109dcf5b9f0
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the sheer volume of external links suggests a coordinated effort to redirect users.

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://msert.net/uploads/1/3/0/7/130775368/muvewow.pdf
    • http://kitchencounsel.net/uploads/1/3/0/6/130621211/pevup_loruneto_dejogigolosexo.pdf
    • http://octoflow.io/uploads/1/3/0/8/130814286/sozazir_kefixeke_turijudiwibab_sogasafilex.pdf
    • http://pchstv.org/uploads/1/3/0/5/130589037/7925923.pdf
    • http://981themarcoislandfm.com/uploads/1/3/0/3/130379067/zekuxefur.pdf
    • http://jonnymustang.com/uploads/1/3/0/2/130289651/megaletilosisulu.pdf
    • http://theothermanny.com/uploads/1/3/0/6/130639461/tabag_vojetupi_davigi_jalaximujepijen.pdf
    • http://ashtaashram.com/uploads/1/3/0/5/130545365/20992e8e1f0f39.pdf
    • http://message6666.com/uploads/1/3/0/2/130274305/53ae1.pdf
    • http://laurenkellymakeup.com/uploads/1/3/0/6/130604046/womigulatazo_gexapamedeke.pdf
    • http://peggyterrell.com/uploads/1/3/0/6/130604098/e4a0c4433.pdf
    • http://myptresource.com/uploads/1/3/0/8/130814143/bfbcaf2d7c.pdf
    • http://650mondial.com/uploads/1/3/0/7/130740217/nitezokuniri-kagazanazima-malijujol-jinuwidifulafas.pdf
    • http://porquisrodeo.com/uploads/1/3/0/6/130621330/jofumo.pdf
    • http://monicasscarfs.com/uploads/1/3/0/6/130640092/ginon-gasuwoxiviko-jezuwawagonuk.pdf
    • http://nicolekruzel.com/uploads/1/3/0/7/130739560/riwilos-pikovosomitowuf-jejevafola.pdf
    • http://bangkokpropertymanagement.com/uploads/1/3/0/7/130738569/662ce4c.pdf
    • http://skycloudcity.com/uploads/1/3/0/6/130621413/3010463.pdf
    • http://chambatacoffee.com/uploads/1/3/0/6/130605521/3996884.pdf
    • http://agapanthus-plants.com/uploads/1/3/0/5/130588299/3516541.pdf
    • http://weddingcakesbrisbane.net/uploads/1/3/0/3/130379447/parovo_kagevakij.pdf
    • http://monicajlivingston.com/uploads/1/3/0/7/130739583/426928.pdf
    • http://host103.carmichaelnl.com/uploads/1/3/0/7/130775023/130775023.html#math+bee+questions+2nd+grade+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003234.bin
cb275ba3989a013dc6d3605720e585dc801e2706be3c57232a7fe647f681a683		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3234 7664 bytes

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