Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cf413ded09437bd…

MALICIOUS

PDF

39.4 KB Authoring application: Inkscape
MD5: 277a024f3f31e7f62e5784ed136cee2a SHA-1: 137d6f490aa2ecae9e4f8a104a5c3956859d77fb SHA-256: 3cf413ded09437bd9ecfac40e18f0b92fdc02558286c3a830040fbfc7f5142dd
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, as detected by the PDF_SEO_LINK_FARM heuristic. These links point to numerous PDF files hosted on various domains, suggesting a link farm or a distribution mechanism for further malicious content. The ML classifier and ClamAV also strongly indicate maliciousness, with ClamAV identifying it as Pdf.Phishing.TtraffRobotInstall. No scripts were extracted, and the document body was heavily obfuscated and truncated, preventing a more detailed analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://sellmyaeron.co.uk/uploads/1/3/0/2/130289540/budupaziju_botulutege_davekusatofax.pdf
    • http://poolservicesarasota.com/uploads/1/3/0/4/130475932/6885145.pdf
    • http://culturally-responsive-communication.com/uploads/1/3/0/7/130775257/gebugimuraro.pdf
    • http://www.inogenoneg4.nl/uploads/1/3/0/4/130435888/semixuve.pdf
    • http://capehomerepair.com/uploads/1/3/0/7/130738979/wixogisefusebuvi.pdf
    • http://acdavisbass.com/uploads/1/3/0/6/130620551/kanexuz_zemavulizi.pdf
    • http://enjoyyourjourney.com/uploads/1/3/0/6/130639559/7334613.pdf
    • http://alchemy-designstudio.com/uploads/1/3/0/7/130775134/dofeva_pojafijel_dumokig_rupibexivogafod.pdf
    • http://thenepeanrowers.com/uploads/1/3/0/5/130590467/xuletuzaju_xovipoparisoru.pdf
    • http://ohhousecleaners.com/uploads/1/3/0/5/130539009/9435669.pdf
    • http://ipraymovement.com/uploads/1/3/0/6/130640027/zokek.pdf
    • http://designpreviewer.com/uploads/1/3/0/4/130489175/pezopawepa.pdf
    • http://lisayountpottery.com/uploads/1/3/0/2/130273962/6b75c543fbcef6.pdf
    • http://gotvapestache.com/uploads/1/3/0/8/130813648/130813648.html#dallas+mavericks+schedule+2017

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000040e0.bin
f900bdc65b84428a951f9c44b1c8210dc5cc0e5029acf3a2dfc062ec5ac75a2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x40E0 7984 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.