Malicious PDF — malware analysis report

Static analysis result for SHA-256 181160a725e57c4b…

MALICIOUS

PDF

60.1 KB Authoring application: LibreOffice
MD5: 2bbeae684c9da0ee4008da6caabc9bd8 SHA-1: 0a8d5ce59b088b5d94cf0b724128197d297be15e SHA-256: 181160a725e57c4b00cb3115005fc2cbc7655a979b61b9db05a5961553906996
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged by multiple heuristics, including a critical finding for a mass external PDF link farm. The document contains numerous embedded URLs pointing to other PDF files, suggesting a tactic to distribute content or potentially host malicious payloads. The ML classifier and ClamAV detection further support its malicious nature, classifying it as phishing-related.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://www.everlyconsulting.org/uploads/1/3/0/7/130740349/sipezoso.pdf
    • http://precisioncardetailing.com/uploads/1/3/0/5/130588821/5351365.pdf
    • http://www.bsa-sccc-pack301.com/uploads/1/3/0/4/130476539/tizekowitum-fevawebavu.pdf
    • http://mirembegirlsvocationalcentre.com/uploads/1/3/0/8/130814195/63db55.pdf
    • http://myrole.finance/uploads/1/3/0/6/130604240/600e65e8b6.pdf
    • http://magyarmale.net/uploads/1/3/0/2/130272372/gatukimuki_wonuvot_kojubaxa.pdf
    • http://abovetumblerridge.ca/uploads/1/3/0/5/130544387/1345625.pdf
    • http://www.micromaxfarms.com/uploads/1/3/0/8/130814439/pakipivev.pdf
    • http://circlewelder.com/uploads/1/3/0/7/130776219/1570770.pdf
    • http://peteylownotes.com/uploads/1/3/0/5/130550672/pumodi_lefoladul.pdf
    • http://engelenterprises.com/uploads/1/3/0/2/130287371/4061735.pdf
    • http://doppiodave.com/uploads/1/3/0/5/130545954/6762b72.pdf
    • http://sugarvedelmiesmunkavedelmikft.com/uploads/1/3/0/6/130640067/9902116.pdf
    • http://carlospowellfoundation.org/uploads/1/3/0/6/130621480/napapamemi_xasinijoti_rikubasoveduxe.pdf
    • http://troyarnett.com/uploads/1/3/0/7/130775309/e8813f656b2eb.pdf
    • http://foxongardens.com/uploads/1/3/0/2/130291029/vopur.pdf
    • http://hopgal.com/uploads/1/3/0/4/130475881/5c3f0b.pdf
    • http://worthithouston.com/uploads/1/3/1/0/131070596/8765c.pdf
    • http://lumensmart.net/uploads/1/3/0/3/130379523/zasowipajerin-lezosezomaweser-fijajuzilo-wexofepesisedo.pdf
    • http://comercializadoraflesem.com/uploads/1/3/0/8/130874128/8442591.pdf
    • http://iwa-tellmyanmar.com/uploads/1/3/0/6/130621554/130621554.html#legend+of+zelda+breath+of+the+wild+map+of+all+shrines

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000164c.bin
d59c3844d24225dfdbf9cf7cb0d9397327cd87b3923b9c85337b268f4940606d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x164C 8076 bytes

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