Malicious PDF — malware analysis report

Static analysis result for SHA-256 6542e960b74b4641…

MALICIOUS

PDF

38.8 KB Authoring application: Solid Converter PDF
MD5: 99c7319a20b283a3f6e974e791fd85b2 SHA-1: eaac4026ba48c8b1fff312033c3ef926c51fa51e SHA-256: 6542e960b74b4641c4b527b5354bfa0940b725cd860a9686c1f2096ad65a267d
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a mass external link farm, with 19 embedded URLs pointing to other PDF files, indicating a phishing or malware distribution scheme. The document body attempts to trick users by suggesting their browser is outdated and providing a link to download a file, likely a malicious payload. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the malicious intent.

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://sacredsantafe.org/uploads/1/3/0/4/130483459/xezurix.pdf
    • http://downsideupphoto.com/uploads/1/3/0/6/130639706/9226039.pdf
    • http://restaurantwaterloo.nl/uploads/1/3/0/6/130621603/mejatuso_tifuxofixaxef_kakilutavikejuv.pdf
    • http://wagobufure.catiacristais.com/uploads/2020/01/29/8342811.pdf
    • http://ib-airbank.mobi/uploads/2020/01/28/ba01fc05d9f.pdf
    • http://russianboutique.co.uk/uploads/1/3/0/5/130588187/19a8467.pdf
    • http://balsamrootcatering.com/uploads/1/3/0/4/130435826/78399c5598.pdf
    • http://msidec.com/uploads/1/3/0/6/130639554/2736505.pdf
    • http://airguardian3.com/uploads/1/3/0/2/130289755/949b9caf21b9b92.pdf
    • http://konrn.com/uploads/1/3/0/6/130620240/memosumupoma-bixatefebokeguj.pdf
    • http://idspreads.com/uploads/1/3/0/6/130621459/musolivotineniw.pdf
    • http://aimeekena.com/uploads/1/3/0/3/130323409/33e34c109ed0c8.pdf
    • http://akhnasemi.com/uploads/1/3/0/5/130588438/lugujosuzun.pdf
    • http://merryhillweddings.net/uploads/1/3/0/5/130550949/38d3d.pdf
    • http://r-presentations.weebly.com/uploads/1/3/0/5/130588790/1043982.pdf
    • http://trinitywinchestertn.org/uploads/1/3/0/4/130488974/sewolixagetik-relumivu-sawakiterevu-sageriwikami.pdf
    • http://kylestevenanderson.com/uploads/1/3/0/5/130538859/ribonizojafimodubite.pdf
    • http://coachingvan.com/uploads/1/3/0/5/130589277/midifageze.pdf
    • http://vsemdaryu.site/uploads/1/3/0/5/130551125/130551125.html#fundamental+of+engineering+thermodynamics+7th+edition+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000157f.bin
68e6017d80ffe0eb5c02dbcdca156fdb2377784b78880ce935d09178d55f4047		 pdf-font-stream PDF embedded font (sfnt) at offset 0x157F 8152 bytes

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