Malicious PDF — malware analysis report

Static analysis result for SHA-256 d30e544d6495fa87…

MALICIOUS

PDF

36.2 KB Authoring application: PDFedit
MD5: dbba8eed52c091858b3f0e151c288bf5 SHA-1: c2c742bbd642c810e6e9c9520b22dd5631899953 SHA-256: d30e544d6495fa875d14db1a05a6dabd17a55376135a2eecf521d0c2d104f930
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, indicating a link farm likely used for SEO poisoning or to distribute further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine the exact lure.

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 https://bofemomilelu.weebly.com/uploads/1/3/0/5/130544313/davomodiworebimupego.pdf
    • http://skycampgreenwich.org/uploads/1/3/0/4/130488251/8f04b5.pdf
    • https://benawamu.weebly.com/uploads/1/3/0/4/130435857/nugepasimaf_rativ_jufurug_wilofejuripuzi.pdf
    • http://mvsdcurriculum.weebly.com/uploads/1/3/0/2/130289392/7eeac40dd00f52.pdf
    • http://bachirfall.eu/uploads/1/3/0/6/130604826/4279710.pdf
    • http://purensimpleohio.com/uploads/1/3/0/4/130488616/4099256.pdf
    • http://study-spanish-educator.com/uploads/1/3/0/6/130604492/jorizij_bubozi.pdf
    • http://larubo.el1t.ru/uploads/2020/01/27/wanafinako-ziwofufuxivo-lorowumeduzusem.pdf
    • http://pianomethod.info/uploads/1/3/0/2/130272955/buwubuzatutaxuf.pdf
    • http://sag.mnekak.pro/uploads/2020/01/28/sujonivuzujimep.pdf
    • https://nagovijulebis.weebly.com/uploads/1/3/0/3/130379424/vibelozusepebus_jodurojago_ponut.pdf
    • http://nagi.sledcomproc-kuzbass.ru/uploads/2020/01/28/tudalavirepaga.pdf
    • http://muzayyido.com/uploads/1/3/0/4/130476066/5560466.pdf
    • http://420productionsok.com/uploads/1/3/0/2/130287295/f78bc3.pdf
    • http://mvrmoto.com/uploads/1/3/0/6/130605122/migexijibat_jerusase_jegenijemon.pdf
    • http://oldpixhamschool.com/uploads/1/3/0/5/130588773/xazuger.pdf
    • http://mysoundcollective.com/uploads/1/3/0/2/130270987/130270987.html#motu+patlu+wonderland+movie++hd

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001505.bin
80da0ac6544347d969fc179e8683d4214c78ec92f7fd08e7361188adf408c69f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1505 7992 bytes

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