Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a3da9ced18eb5c8…

MALICIOUS

PDF

38.2 KB Authoring application: Inkscape
MD5: 2e581d684395f704a04315153c963b4b SHA-1: 1eaa90aee490f595d0589bd9248f6da6cba7e217 SHA-256: 4a3da9ced18eb5c81e7f5bfa9be859efd408aded0700aba201f541d68015f94b
130 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique commonly used for SEO poisoning and phishing. The ClamAV heuristic 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious download intent. The document body, though heavily obfuscated, contains URLs that are part of this link farm, suggesting the primary goal is to redirect users to malicious 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 https://medukufemu.weebly.com/uploads/1/3/0/5/130550880/8063612.pdf
    • http://looe-festival-of-the-sea.com/uploads/1/3/0/6/130639537/disukezekapuk-xadudibuxil-bejujes.pdf
    • http://jogixoko.invoicing.space/uploads/2020/01/28/kagevilawakorogubi.pdf
    • http://artm.agency/uploads/1/3/0/6/130621677/eba10f90c0c38c6.pdf
    • http://behumble.fitness/uploads/1/3/0/5/130551319/sonofu.pdf
    • http://sedaniwu.privat-market.ru/uploads/2020/01/29/6009bcedd9.pdf
    • http://accesseurope-ireland.weebly.com/uploads/1/3/0/4/130488970/caaf1c0f628.pdf
    • http://chabadwomensprograms.com/uploads/1/3/0/6/130605258/saxozaxide.pdf
    • http://munukutep.audiostart39.icu/uploads/2020/01/29/saxitevu_viribilasojuxag_ridimuzuku.pdf
    • http://fozeruto.neobotanic.com/uploads/2020/01/28/2506334.pdf
    • http://pcigra.ru/uploads/2020/01/27/dodunibebipemaz_wedavevovix_zuruni_vojugibuwonemej.pdf
    • http://mysoundcollective.com/uploads/1/3/0/2/130289625/130289625.html#free+logo+reveal+after+effects+templates

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001366.bin
c77c96750e7c73cee39603d00e388cffb2d134f3f8fc80c2e4ad792511120850		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1366 8060 bytes

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