Malicious PDF — malware analysis report

Static analysis result for SHA-256 891ae41ae8818dcc…

MALICIOUS

PDF

51.5 KB Authoring application: Serif PagePlus
MD5: 7f2847b816e993a93e6714647a871796 SHA-1: 962ac961f34af71765c589b0a4fe5b8f9ac61ab8 SHA-256: 891ae41ae8818dccc6399a1c39694f979dc9c4d932fda3a0cfb79cf608086f74
128 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified as a PDF_SEO_LINK_FARM heuristic, suggesting an attempt to manipulate search engine results or distribute malicious content. The presence of a visual download button further supports a lure-based attack. ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' confirms the malicious nature. The embedded URLs likely lead to further stages of the attack or phishing content.

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://europeanwaxing.us/uploads/1/3/0/5/130541443/boxaruk_rabikel_katukil_sumiguro.pdf
    • http://brewandplowfarm.com/uploads/1/3/0/3/130323932/9152319.pdf
    • http://minoritypodcast.com/uploads/1/3/0/3/130323206/fee6d17a42c9.pdf
    • http://qnek.net/uploads/1/3/0/2/130273896/monemavutuf.pdf
    • http://sacred-journeys.net/uploads/1/3/0/3/130379179/sewemolobiwa_sugapanemode.pdf
    • http://midicicr.com/uploads/1/3/0/6/130605263/9956502.pdf
    • http://ccpstl.org/uploads/1/3/0/5/130588492/xefowefogufa.pdf
    • http://allamericandogexpo.com/uploads/1/3/0/3/130313035/130313035.html#olx+app++new+version

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001351.bin
641990442a141ada2cefffb8738c097b98589b18cd150ead3d5d438c3e9258f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1351 9684 bytes
font_01_sfnt_off0000767e.bin
1313c42514c5e2c39ac4962aa9a5e54dbb84ed9285b79088695fcf755539dff9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x767E 1872 bytes
font_02_sfnt_off00007f2e.bin
30fd798a16b2cd48814e4a5f4eed8fd6507d0152d79cbf95d2393567815bfde6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2E 17284 bytes

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