Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9b6c964e28837c0…

MALICIOUS

PDF

40.1 KB Authoring application: OpenOffice.org
MD5: d337877fddb92665735db1bcc720ada5 SHA-1: 784cc3b3c4dcf2089b5140ce18eb7c6943d0ac23 SHA-256: e9b6c964e28837c0dd3aa5e15ea253e40b77c7fe2e2b8f4db5e2a5145ae52924
128 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDF files, a common technique for SEO poisoning or distributing malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious distribution intent. The presence of a visual download button also indicates a lure to encourage user interaction and download.

Heuristics 4

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://dcchosa.com/uploads/1/3/0/5/130551457/tojitanezo.pdf
    • http://theheroinesclub.com/uploads/1/3/0/6/130605387/modarusogi.pdf
    • http://benton-jp.com/uploads/1/3/0/5/130589316/f5e215e.pdf
    • http://ceramikerie.de/uploads/1/3/0/5/130551349/3cbbaf09b20e47.pdf
    • http://www.sleepyknightsblog.co.uk/uploads/1/3/0/8/130814058/7a487d855ff5a.pdf
    • http://firesprink.org/uploads/1/3/0/5/130589078/gizexewidomi.pdf
    • http://lashesbyjasminevanessa.com/uploads/1/3/0/3/130323222/9615435.pdf
    • http://trovenj.com/uploads/1/3/0/6/130620965/nusumazazitewezepuse.pdf
    • http://landingpages.net/uploads/1/3/0/6/130621082/4e7b83f5ee344e.pdf
    • http://sacredstarastrology.com/uploads/1/3/0/2/130289734/91a4c.pdf
    • http://bosslessforever.com/uploads/1/3/0/3/130313176/lozuguvuwalave.pdf
    • http://millikenconsults.com/uploads/1/3/0/6/130604336/0894da183bce5.pdf
    • http://brandyspearlsandmore.com/uploads/1/3/0/6/130620730/xesekapigolug-magawadepixavev-lowijo-xurimofufokes.pdf
    • http://www.internationalcff.com/uploads/1/3/0/8/130814187/5972077.pdf
    • http://southlandpawn.net/uploads/1/3/0/5/130538839/woviturobawem-xetiz-zavufup-benopobiperobin.pdf
    • http://74-123-76-170.mgwnet.com/uploads/1/3/0/8/130874175/130874175.html#aptet+2018+question+paper+with+answer+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000040f3.bin
eda1cc2376ee19ad68998cbae3a1fab992dd88a544ae3229af0b88db19759079		 pdf-font-stream PDF embedded font (sfnt) at offset 0x40F3 8300 bytes

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