Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7ace985f7518d9b…

MALICIOUS

PDF

41.1 KB Authoring application: OpenOffice Draw
MD5: 70e96ae78c97030a3386d9c888999300 SHA-1: a70659c55b3fdaff5539aa71101d264e4b4e4541 SHA-256: a7ace985f7518d9b28dcb0b51c2137fc0886b68a82d235b72291e1622a533cf0
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents, a technique commonly used for SEO poisoning or phishing campaigns. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. The document body content is heavily obfuscated and does not provide clear user-facing text, but the heuristic firings strongly indicate a malicious link farm.

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://rgbgrasstunes.com/uploads/1/3/0/2/130289063/50423d7a19.pdf
    • http://testuda.com/uploads/1/3/0/7/130739575/3680021.pdf
    • http://www.ramsaymusic.com/uploads/1/3/0/8/130814931/genavolivas_mirovaxodulun_kufebijo_morixoko.pdf
    • http://infectiousproductions.com/uploads/1/3/0/7/130775808/nusikigi_kilin_pubikuwin.pdf
    • http://nationalchristmasgreetings.com/uploads/1/3/0/3/130379770/musufufedonaz.pdf
    • http://northsidecigars.com/uploads/1/3/0/5/130541837/654091.pdf
    • http://pungentoder.com/uploads/1/3/0/2/130291371/25b779b.pdf
    • http://beckandclem.com/uploads/1/3/0/5/130550890/leruneweduduludikevi.pdf
    • http://pioneerriskmgmt.org/uploads/1/3/0/6/130620921/3796412.pdf
    • http://tidyhangers.co.uk/uploads/1/3/0/5/130590738/supetaxajaxax.pdf
    • http://hayleynashcopywriting.com/uploads/1/3/0/9/130969218/bosuf.pdf
    • http://essentialpleasure.com/uploads/1/3/0/5/130543285/fbe32f11c1ba9e.pdf
    • http://theenchantedoakmi.com/uploads/1/3/0/4/130488773/molobasapikijo_xageku_finupotuwutigus_wojuli.pdf
    • http://topabudhabi.com/uploads/1/3/0/2/130272509/tanal_bajezaxomeluva_zorodujijibu.pdf
    • http://cmhs.bethalto.org/uploads/1/3/0/5/130551526/wufumofisuvekeb.pdf
    • http://faiza-portfolio.com/uploads/1/3/0/5/130542853/wemirojaje.pdf
    • http://q7vln.bpmtc.com/uploads/1/3/0/3/130379479/130379479.html#serenity+prayer+mean+definition
    • http://northsidecigars.com/up

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000045cc.bin
ce288683224da3cb3bfbb2dad87aa42182ec42395ed8aa3718030e332eb2962e
pdf-font-stream PDF embedded font (sfnt) at offset 0x45CC 7724 bytes