Malicious PDF — malware analysis report

Static analysis result for SHA-256 70f3ee19ad8adfbc…

MALICIOUS

PDF

68.0 KB Authoring application: Soda PDF
MD5: 563a0900add0836a8dfa1e1fc7a94401 SHA-1: 7efc90406f7e7c7ba06946e21d736d7da7229e51 SHA-256: 70f3ee19ad8adfbc2f2da1dde9feb06ae0ed52b15bde5eb2e0b299c69418d43c
192 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 hosted on various domains, indicating a link farm or distribution mechanism. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the document body itself contains URLs, suggesting a lure to external content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://healingwithbrynna.com/uploads/1/3/0/5/130588605/9781444.pdf
    • http://slopesidecapital.com/uploads/1/3/0/7/130775154/ffaa506029a.pdf
    • http://succeed2serve.org/uploads/1/3/0/6/130604458/441700781bfa3c.pdf
    • http://developmentechnwkllc.com/uploads/1/3/0/5/130588467/xemuv.pdf
    • http://zackturnermusic.com/uploads/1/3/0/6/130639327/noboliwadu-lejeripilobe.pdf
    • http://mikaelpettersson.net/uploads/1/3/0/7/130740177/25a73522ea070e.pdf
    • http://belatik.store/uploads/1/3/0/7/130740008/7d1a9f90b.pdf
    • http://cpanel.hausofpeacewi.com/uploads/1/3/0/4/130488243/weveg_sixekenaluxugu.pdf
    • http://www.mysoundcollective.com/uploads/1/3/0/6/130621387/bizajikiseta.pdf
    • http://thesupporthelp247.com/uploads/1/3/0/7/130740536/viximovulenidanipa.pdf
    • http://mysuccesstraining.com/uploads/1/3/0/6/130603945/malipizaw.pdf
    • http://mos5stepchallenge.com/uploads/1/3/0/6/130620776/70f31.pdf
    • http://mrswoodworth.com/uploads/1/3/0/4/130483253/gepilavaxomosu-fozuvu-fefixavemeseb.pdf
    • http://thecynicalsage.com/uploads/1/3/0/2/130289291/woparade.pdf
    • http://vickiaskew.com/uploads/1/3/0/3/130323738/06525b993e36cfe.pdf
    • http://atcofootdoc.com/uploads/1/3/0/2/130271224/tapewulusero.pdf
    • http://beachhousemedia.us/uploads/1/3/0/4/130476657/7497914.pdf
    • http://newindanderyd.com/uploads/1/3/0/6/130604527/4122424.pdf
    • http://advancedbuildingcenter.co/uploads/1/3/0/4/130488416/2803350.pdf
    • http://friendlycoinlaundry.com/uploads/1/3/0/7/130776434/6970548.pdf
    • http://arcc06quebecmetropolitain.com/uploads/1/3/0/3/130313525/bogube-pewerug-monixajivazu.pdf
    • http://goseejc.com/uploads/1/3/0/4/130489149/130489149.html#amorphous+silicon+solar+cells+efficiency
    • http://healingwithbrynna.com/uploads/1/3/0/5/13058860
    • 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_off0000179b.bin
09f9b84ddd8cf2c5af214fa463beeab840cc5dcffaa54e55ef3648a64a100d38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x179B 11304 bytes
font_01_sfnt_off0000d005.bin
ccd4c16be78461455bc416a6b2a82209edd949535a8ea342684372e9e7370a0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD005 2736 bytes

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