Malicious PDF — malware analysis report

Static analysis result for SHA-256 171176dd3048a464…

MALICIOUS

PDF

43.4 KB Authoring application: Scribus
MD5: ff35c438bed4cd072bf4b5174578a701 SHA-1: 8cfd35e5c915a9e5dec2fb8b167b9b41bd22f0b1 SHA-256: 171176dd3048a4647fa453c77e516e974037829d7d047e51bfcbbccde2bd09f0
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, a common technique for phishing or distributing further malware. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The embedded URLs likely lead to malicious content or phishing pages.

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://wrentham.shop/uploads/1/3/0/5/130551518/lavumekeweva_detudafu_gerexisereminu_rikineluluwe.pdf
    • http://lambertservisi.com/uploads/1/3/0/6/130639424/e9db5d44ba82.pdf
    • http://networkhearing.net/uploads/1/3/0/6/130604807/4455a2ae.pdf
    • http://xejum.floki.store/uploads/2020/01/28/wotixijize_kubokuvak.pdf
    • http://bigislandeventrentals.com/uploads/1/3/0/6/130640236/fadetizilejiwididi.pdf
    • http://sunshinecoastwaterpolo.com/uploads/1/3/0/3/130379673/toratebi_rewadazexopop_lidugoru_lupesunozi.pdf
    • https://fejuxane.weebly.com/uploads/1/3/0/4/130475883/gobezanarowe_xepozure_vuvigawexusox_nadexa.pdf
    • http://advanceadvocacyandsupport.com/uploads/1/3/0/4/130435594/jirexefalapifakajuz.pdf
    • http://deranene.funblog.online/uploads/2020/01/28/walotazusevo_domoteg_tetizemiputezul.pdf
    • http://websiteamonth.com/uploads/1/3/0/6/130604078/220242d10af831.pdf
    • http://cityonloc.com/uploads/1/3/0/7/130738885/130738885.html#yekkada+yekkada+video+song
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001373.bin
ac15b3ca172499cf211eb12b22409e514a7717c6c5ea31696fc98aca0c1ae671		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1373 8796 bytes
font_01_sfnt_off00006ecc.bin
3d52fc27d04b8b84b219df719738f768697e09c2050136bc1fe69fcddf4eca6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ECC 2652 bytes

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