Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc44ceeba894eb77…

MALICIOUS

PDF

68.7 KB Authoring application: SWFTools
MD5: 3bd49aa85cacc54b94e91392a658a67f SHA-1: 4336804f6b43478c78b7581d45acee24a9f0f7cd SHA-256: bc44ceeba894eb771343c0e97912ee842fc1e0ee39d4eba1b044e0c692421e17
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links pointing to external PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the 'PDF_SEO_LINK_FARM' heuristic. The ClamAV detection further supports its malicious nature. The document body itself is heavily corrupted and contains some of the URLs, but does not provide clear user-facing text for a specific lure.

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://attorneyspacesharing.com/uploads/1/3/0/4/130488213/4c1ebe8fc800.pdf
    • http://asbestosinamerica.com/uploads/1/3/0/5/130588700/bodokupakajonesebe.pdf
    • http://theheroinesclub.com/uploads/1/3/0/6/130604141/4258278.pdf
    • http://webmail.auntiea.com/uploads/1/3/0/7/130776555/dovem.pdf
    • http://mta-sts.mx.naturallydoulasd.com/uploads/1/3/0/5/130588477/2bf448ea5bef0.pdf
    • http://classytattoogirl.com/uploads/1/3/0/4/130435711/vulamajiz.pdf
    • http://www.avvluciamarinoni.com/uploads/1/3/0/7/130775254/zulenoxak-solunew.pdf
    • http://achickandherpeas.com/uploads/1/3/0/6/130621593/7205725.pdf
    • http://jvgphotography.net/uploads/1/3/0/2/130272350/3ac528811.pdf
    • http://billionaireforce.com/uploads/1/3/0/6/130621351/gekura.pdf
    • http://sistersofsolace.org/uploads/1/3/0/5/130550925/9329809.pdf
    • http://hostmaster.tot.co.uk/uploads/1/3/0/5/130588502/4d65ddf4a4.pdf
    • http://www.alicetxchamber.org/uploads/1/3/0/5/130547613/5579357.pdf
    • http://vegangiftboxes.com/uploads/1/3/0/6/130604085/4b7e564fcf1be3.pdf
    • http://swintuitiveart.com/uploads/1/3/0/4/130489499/vigupirulupeguzufu.pdf
    • http://www.eloriginalnightclub.com/uploads/1/3/0/4/130488175/6008389.pdf
    • http://pinnb.slpny.com/uploads/1/3/0/3/130379367/130379367.html#blood+pressure+management+in+chronic+kidney+disease

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000148b.bin
8cb8f40a8b19ce5e9eeda01faf2876ae040511aa1a703fc139f0fe250d1fb8c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x148B 8248 bytes
font_01_sfnt_off0000c803.bin
b3affdfdfee497c2d3230853582529cf395d265bfdbb8cde7d84ae9c33602211		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC803 16036 bytes

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