Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5defadfd25e22f9…

MALICIOUS

PDF

38.7 KB Authoring application: LibreOffice
MD5: 420d2dd96591f226fbd69b53323caa1c SHA-1: 4e7c90875aa703c1cf7c57bdb2f11aaaa736726c SHA-256: b5defadfd25e22f9f57ebee747203742db68235a54a1b11d8bd4c56e5b4ba29c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV heuristic also flags this as a phishing-related PDF. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine the exact user-facing lure.

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://diasporawearuk.co.uk/uploads/1/3/0/5/130544539/mefurijuladitad.pdf
    • http://internationalrealestateinvestmentforum.com/uploads/1/3/0/5/130541445/zesawojiloterus_jizuwevugis_zitiwoluzid.pdf
    • http://www.were-nuts-about-mutts.com/uploads/1/3/0/6/130604896/3988107.pdf
    • http://moonrisetours.com/uploads/1/3/0/2/130272977/fudurajowimopiwor.pdf
    • http://redafilia.com/uploads/1/3/0/6/130604874/992545.pdf
    • http://www.workingequitationillinois.com/uploads/1/3/0/2/130288554/5979282.pdf
    • http://upsetselect.com/uploads/1/3/0/7/130739510/zakabefapinu.pdf
    • http://prodsquad.net/uploads/1/3/0/7/130775588/c54ad6149547c3.pdf
    • http://www.wigandweavehair.com/uploads/1/3/0/2/130289319/tagez_remebeduba_gasanuja.pdf
    • http://mygoodsforsale.com/uploads/1/3/0/6/130622091/gojekuve.pdf
    • http://admin.mvceramics.com/uploads/1/3/0/6/130639205/fitopete_tuxibipizokur.pdf
    • http://dcterrorisminsurance.com/uploads/1/3/0/3/130323401/90a75.pdf
    • http://www.hardingfamilytree.com/uploads/1/3/0/8/130814907/lowugufonedunuji.pdf
    • http://www.everdayitemtracker.com/uploads/1/3/0/4/130488213/mugaziwakolutaw-dopobos-jufuvowenonap-kipepotalidip.pdf
    • http://achillesstravoravdis.com/uploads/1/3/0/6/130621292/suxuzig.pdf
    • http://ywbhe.bpmtc.com/uploads/1/3/0/4/130435844/130435844.html#first+class+faa+medical+student+pilot+certificate
    • http://www.everdayitemtracker.com/uploads/1/3/0/4/130488

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003d3d.bin
ddd970809530ca07218dfde9863b29e713fef9d0f68abac7b0acf821dd06875d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3D3D 7540 bytes

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