Malicious PDF — malware analysis report

Static analysis result for SHA-256 fddfd2c0d4250328…

MALICIOUS

PDF

40.1 KB Authoring application: Smallpdf Desktop
MD5: 580e22bb6d9ca5e8895f3971d0703011 SHA-1: 38751eafe6aac886b217f6b83f2742ecb0e0c1d4 SHA-256: fddfd2c0d42503288a970343896dc467f4ad14f178580d39f841bc9a2c5fe64c
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which follow a similar pattern of numeric or book-slug-based SEO lures. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly suggests a phishing or traffic redirection campaign. The embedded URLs likely lead to further malicious content or phishing pages.

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://adriftwoodworks.com/uploads/1/3/0/6/130603995/pemupo.pdf
    • http://myazulwedding.com/uploads/1/3/0/6/130620981/xufukogupagipa.pdf
    • http://fitradical.com/uploads/1/3/0/5/130551423/rimonimowoxed.pdf
    • http://harderbrothers.info/uploads/1/3/0/7/130775940/7833096.pdf
    • http://ocwpublishing.com/uploads/1/3/0/7/130776811/a157c6aaf0bd058.pdf
    • http://silverspurcamp.com/uploads/1/3/0/5/130590477/jomajes.pdf
    • http://allthatglitters.club/uploads/1/3/0/6/130604077/napunugedijiwat.pdf
    • http://photoncat.com/uploads/1/3/0/4/130488098/gubuw-kipaw-pirumapizagul.pdf
    • http://whattimeisitinchina.com/uploads/1/3/0/7/130775871/vasupog_romajux_wokem.pdf
    • http://twoyaasistahs.com/uploads/1/3/0/7/130740623/9d3006d4752037f.pdf
    • http://driversboost.com/uploads/1/3/0/4/130477455/4ea11.pdf
    • http://pgeastsundayschool.com/uploads/1/3/0/7/130775796/0ad0791857c65f1.pdf
    • http://moabrecycles.com/uploads/1/3/0/6/130639565/9185849c3e2.pdf
    • http://bestofbaliadelaide.com/uploads/1/3/0/7/130776166/2587399.pdf
    • http://gclub.lucky1st.com/uploads/1/3/0/5/130590180/130590180.html#merge+pdf+files+acrobat+reader
    • http://twoyaasistahs.com/uploads/1/3/0/7/130740623/9d3006d475203

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000423e.bin
90067b8ee9c43ad89cca5804a130d7316fdbaa668c3fbc824e9436562e584ad8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x423E 8300 bytes

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