Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b98f84b6cfffdc0…

MALICIOUS

PDF

38.4 KB Authoring application: PDFedit
MD5: 5dd0de2b9684890c5db0152b975a56ea SHA-1: 33f77ba669bc42a77b013c99bdc4726eb046f7db SHA-256: 2b98f84b6cfffdc0c4ecb755e374c8d44f95580acc414afc6827aeef8929787a
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to lure users into downloading other PDF files, masquerading as a free grammar course. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly suggests a phishing or traffic redirection intent. The embedded URLs are the primary indicators of this malicious activity.

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://polymergroup.net/uploads/1/3/0/5/130540116/9844596.pdf
    • http://fujan.orhideya.su/uploads/2020/01/28/kegapelujobevolonoj.pdf
    • http://myautoaccidenthelp.com/uploads/1/3/0/7/130739552/485283.pdf
    • http://scsallthingsmath.weebly.com/uploads/1/3/0/6/130620579/8837978.pdf
    • http://theshootersedge.us/uploads/1/3/0/4/130489933/duvoledagajaku.pdf
    • http://sunnydoggrooming.com/uploads/1/3/0/6/130639329/xopuxupuvebe-gebozes.pdf
    • http://morgangracejarrett.com/uploads/1/3/0/2/130288710/gejak.pdf
    • http://unioneast.net/uploads/1/3/0/3/130324047/2903161.pdf
    • http://ithamarenriquez.com/uploads/1/3/0/5/130588731/1546012.pdf
    • http://akcustomart.com/uploads/1/3/0/4/130435876/tagozidodisi.pdf
    • http://beingself-centered.com/uploads/1/3/0/3/130313150/130313150.html#oxford+english+grammar+course+free+download+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001521.bin
ca9b9d9d96d701fc5c10d10c848add319fcf196178331d149e610fbff240c962		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1521 10228 bytes

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