Malicious PDF — malware analysis report

Static analysis result for SHA-256 091bcb2e5c8f8dc1…

MALICIOUS

PDF

41.8 KB Authoring application: LibreOffice Draw
MD5: e0b0d86b6e1408988f647e3b70f8fa61 SHA-1: 06879c655565fcbf5f7317c1a06f8e123e2c7519 SHA-256: 091bcb2e5c8f8dc1f6155b694ad55acd19f703e1eb13107f695d6a1428fe3720
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded URLs pointing to other PDF documents, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate maliciousness, specifically flagging it as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of its direct intent beyond linking to external resources.

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://theascotgroup.com/uploads/1/3/0/8/130874666/6843225.pdf
    • http://the-real-estate-sisters.com/uploads/1/3/0/5/130550783/5261807.pdf
    • http://palmsecurityservices.com/uploads/1/3/0/7/130740598/de702ec63afe.pdf
    • http://jennyslist.net/uploads/1/3/0/6/130620456/rogoxuvago.pdf
    • http://midsters.net/uploads/1/3/0/5/130590532/sulerowowumifaropiw.pdf
    • http://blackpearltattoosupply.com/uploads/1/3/0/6/130605344/gimapurumimela_zopivifu_xafisewunozigi.pdf
    • http://davidlopezjunior.com/uploads/1/3/0/3/130313054/fokudawom_gasatijowo.pdf
    • http://vanfoulk.com/uploads/1/3/0/4/130436172/7882497.pdf
    • http://asia-africarenewableenergyforum.org/uploads/1/3/0/6/130639178/lewuso.pdf
    • http://just-the-blog-you-need.com/uploads/1/3/0/7/130738875/f30b3d880c.pdf
    • http://morgangracejarrett.com/uploads/1/3/0/5/130544494/wapedovibizi_xitefad_sozogewo.pdf
    • http://sunsetsailkeywest.net/uploads/1/3/0/5/130588635/wolisad-xakivego.pdf
    • http://know-ing.com/uploads/1/3/0/5/130589195/sadipogapomu-kapomagafuzabi-belutu.pdf
    • http://micahrichman.com/uploads/1/3/0/2/130287229/pofizad.pdf
    • http://sbwd.company/uploads/1/3/0/4/130435573/c43305.pdf
    • http://gofasttrafficacademy.com/uploads/1/3/0/8/130813514/6664667.pdf
    • http://minixclusive.com/uploads/1/3/0/3/130313067/1eaab577b6f8.pdf
    • http://mojavechamber.org/uploads/1/3/0/6/130621490/eb33155fe7.pdf
    • http://stgscentreleeds.co.uk/uploads/1/3/0/6/130621140/8242367.pdf
    • http://code1aviationservices.com/uploads/1/3/0/7/130739206/9ea45.pdf
    • http://355cochrane.com/uploads/1/3/0/5/130545816/pizuduvupa_kufabewowilok_kalav.pdf
    • http://mywobblyireland.com/uploads/1/3/0/5/130588740/4308406.pdf
    • http://6wd.brdge.org/uploads/1/3/0/5/130539427/130539427.html#nifi+confluent+schema+registry

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003eb4.bin
d77544cec700f17a0878ee2fb99bf1e2fb062cab06020a0b1d764338d3f6535b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3EB4 9216 bytes

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