Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad890325f42623a2…

MALICIOUS

PDF

123.6 KB Authoring application: Solid Converter PDF
MD5: def23cd49895ddc1fe0516b8b712b74d SHA-1: 02650cfdf3a46ab991211893fce743256c848836 SHA-256: ad890325f42623a2af80bd81deea942cbdaf105e4b1ed3a0975e71a510518503
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. The PDF_SEO_LINK_FARM heuristic identified a large number of embedded external links, indicating a potential phishing or malware distribution scheme. The document body contains a mix of seemingly random text and URLs, further supporting the malicious intent. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

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://kimiagraphy.com/uploads/1/3/0/8/130813982/0cc6f.pdf
    • http://sheronneblasi.org/uploads/1/3/0/2/130272283/bujidawigutove.pdf
    • http://itsasecretblog.com/uploads/1/3/0/6/130639636/a788a8caf.pdf
    • http://movoaden.org/uploads/1/3/0/4/130488286/1160314.pdf
    • http://lifeisrespond.com/uploads/1/3/0/2/130291416/20441aad.pdf
    • http://www.enrichus.net/uploads/1/3/0/2/130272850/a75cca39f3150.pdf
    • http://citrix.mmac.org/uploads/1/3/0/6/130639978/2625170.pdf
    • http://www.kdechallenge.org/uploads/1/3/0/6/130621278/fiselegifipigij.pdf
    • http://phillipskruse.com/uploads/1/3/0/6/130620478/tomizesijo-lojameda.pdf
    • http://onewisdomzen.ca/uploads/1/3/0/2/130270849/wareboz_zufosafetis.pdf
    • http://keykidoll.com/uploads/1/3/0/3/130323407/b873f0.pdf
    • http://bfdogtraining.net/uploads/1/3/0/5/130588213/ziboboregajado.pdf
    • http://endoflineclothing.com/uploads/1/3/0/5/130550712/mamafepedati.pdf
    • http://autosearjig.com/uploads/1/3/0/7/130775763/219de4e8ab104.pdf
    • http://www.jessicaberryhealing.com/uploads/1/3/0/8/130813033/jesitemebo_voregunaj_tanivetab.pdf
    • http://littlethinkers.net/uploads/1/3/0/5/130551282/beloturixadiror.pdf
    • http://repiping.net/uploads/1/3/0/4/130436207/61201.pdf
    • http://azuldreamspa.com/uploads/1/3/0/5/130551311/bupuj_jonaduw.pdf
    • http://mlyterdogstudio.com/uploads/1/3/0/7/130739653/bamarixaxutame.pdf
    • http://bbeboutiquellc.com/uploads/1/3/0/4/130435524/pukeferigegiv.pdf
    • http://lawncarebenton.com/uploads/1/3/0/4/130483959/ponewufo_bifovo.pdf
    • http://moonrisefall.com/uploads/1/3/0/6/130620451/jovaf.pdf
    • http://www.sojungleeporfolio.com/uploads/1/3/0/2/130291545/komujukesigixi.pdf
    • http://playscapesinsite.com/uploads/1/3/0/6/130639665/2783572.pdf
    • http://irvineworkspaces.com/uploads/1/3/0/4/130436180/lunazavixu-wasel-sukok-bobivemezif.pdf
    • http://74-123-75-40.mgwnet.com/uploads/1/3/0/5/130550891/130550891.html#mahakal+aghor+mantra

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001772.bin
a2f76e81432e388fb9a5efb337356b4eaaec8dee9dee22d6a5045d8b3480886c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1772 8920 bytes
font_01_sfnt_off00015aed.bin
91cf9cd4efac8f69dcdf587659185da8236567bce3e9e4f6a5ecd944f50fae4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15AED 1428 bytes
font_02_sfnt_off00016296.bin
3d65ca10ce0881ff811fb8c3ea4811a5ebe506ed0594db3046c053d9711ecf56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16296 17372 bytes
font_03_sfnt_off00017e93.bin
9231239dbfd3e5d3777f78208bebfcf6da1c056ddc2b1e6ecd37ae385432154b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17E93 21488 bytes

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