Malicious PDF — malware analysis report

Static analysis result for SHA-256 0458c9c46dbf19e4…

MALICIOUS

PDF

37.9 KB Authoring application: Serif PagePlus
MD5: 9f3f1343a19a2d0c1570d36a5f117444 SHA-1: 90fc2f931732483d5c52468a7cbe705ae4b853f9 SHA-256: 0458c9c46dbf19e43c6bcdeff35ef1eae65be561ff9f4774e2a9d3900a72948a
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was identified as malicious by multiple heuristics, including a critical PDF_SEO_LINK_FARM alert and ClamAV detection. The document contains a large number of embedded URLs pointing to other PDF files, suggesting a link farm or a distribution mechanism for further malicious content. The ML classifier also strongly indicated maliciousness.

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://myrole.io/uploads/1/3/0/4/130477126/wanujab-bobakukasi-malonolazasitu.pdf
    • http://jointventurepros.com/uploads/1/3/0/6/130604651/3367165139bb.pdf
    • http://mibias.net/uploads/1/3/0/5/130539120/8076404.pdf
    • http://myfinancialarrowbusinesses.com/uploads/1/3/0/4/130436337/2869771.pdf
    • http://www.overflowinglove.org/uploads/1/3/0/2/130271132/furuxuvo_vimosogobav_fepotu_fukoki.pdf
    • http://suzannekompass.com/uploads/1/3/0/6/130639298/mizubipez.pdf
    • http://joemarianek.info/uploads/1/3/0/6/130604805/jusukamijefadob.pdf
    • http://truedesignscs.com/uploads/1/3/0/5/130550823/zuvufanur.pdf
    • http://sully-location.ch/uploads/1/3/0/7/130739879/52141.pdf
    • http://minigypsyhorse.com/uploads/1/3/0/4/130477048/guzexilavug-denoxiw-bubagozuxod-zozeziwasiki.pdf
    • http://mx.myapptv.com/uploads/1/3/0/7/130740521/goxegupufew-filuze-sudirebexilitu-nubuwi.pdf
    • http://thegullywhompers.com/uploads/1/3/0/2/130270763/lipifop-pevineputofarav-giduzisefuk.pdf
    • http://mysprout.shop/uploads/1/3/0/7/130738996/girom-forofaxuguj-folikosotar-pobunirod.pdf
    • http://web8.pleasingfood.com/uploads/1/3/0/9/130969597/130969597.html#apa+format+abstract+indent

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003ab6.bin
f35616bbc91f05bc448158fc8275255ccb4aec0ed9cb7ff5a5368b3be14ce6b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3AB6 8112 bytes

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