Malicious PDF — malware analysis report

Static analysis result for SHA-256 1df83fa73af789c5…

MALICIOUS

PDF

39.7 KB Authoring application: Scribus
MD5: 5340802b2277ceedbb0b1cd1d7f19ff5 SHA-1: f09c120f2ec101582fd7a245da37ac4f5d976895 SHA-256: 1df83fa73af789c5f40d9d4ab7ff0ec7fa92979ded1313309dcc91cc9f39f3ec
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains a large number of external links, a technique commonly used in SEO poisoning and phishing attacks to drive traffic to malicious sites. The document body, though heavily obfuscated, contains references to 'Ncert chemistry class 12 ebook free' and lists numerous URLs pointing to PDF files, suggesting a lure to download potentially malicious content. The ClamAV detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing classification.

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://olsonphotographystudio.com/uploads/1/3/0/6/130639541/2571678.pdf
    • http://rurart.net/uploads/1/3/0/5/130588625/8483390.pdf
    • http://campaign500.com/uploads/1/3/0/6/130604919/lipovo_menamifemen.pdf
    • http://mpowerbuilding.ca/uploads/1/3/0/6/130604769/memefofilisimedomo.pdf
    • http://chirpsofftheoldblock.com/uploads/1/3/0/3/130313553/4550537.pdf
    • http://diamondbabygems.com/uploads/1/3/0/6/130605353/3745819.pdf
    • http://accomplishdreams.net/uploads/1/3/0/6/130621744/folizefetu.pdf
    • http://nobuhotelmarbella.devsite-1.com/uploads/1/3/0/4/130477363/130477363.html#ncert+chemistry+class+12+ebook+free

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000114f.bin
3013ed54cce239ff9deee17bb35b93a75092b72447b36d7ccb0c3cd97834dd6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x114F 8244 bytes

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