Malicious PDF — malware analysis report

Static analysis result for SHA-256 43fa83e0ecf93287…

MALICIOUS

PDF

44.1 KB Authoring application: Pdftk
MD5: b003cd39f777184a94ceb45a91986a31 SHA-1: 6ed8674e2920d954f7d811f2e948210d0e457ff2 SHA-256: 43fa83e0ecf932870feb0e696b9e8eb978a55b58ddf09a34eda219b466879b7a
128 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to other PDF files. The presence of a 'download' button lure, combined with the ClamAV detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0', strongly suggests a phishing or malware distribution campaign. The document body text, though heavily corrupted, mentions 'Soccer manager 2020 apk hack', indicating a potential lure for game-related cheats or cracks, which are often used to distribute malware.

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://rmtdesigngroup.com/uploads/1/3/0/6/130604599/9dfc2.pdf
    • http://shopsimplybundles.com/uploads/1/3/0/4/130476887/fatetuj_zizaduj_gefuranirufalas.pdf
    • http://mobilematerialsco.com/uploads/1/3/0/2/130270768/20912887f2c5.pdf
    • http://meridiannow.com/uploads/1/3/0/6/130603882/tumus-rabas-mobijexu-nipolorevere.pdf
    • http://neuroperform.weebly.com/uploads/1/3/0/4/130483213/7041139.pdf
    • http://barrygjohnsonsr.com/uploads/1/3/0/6/130603682/306d8.pdf
    • http://mrmacbiblebook2.com/uploads/1/3/0/6/130605389/130605389.html#soccer+manager+2020+apk+hack

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001124.bin
4b9e1ce9a82aee20ddcb75901cdab7c00756703c2d6e801906153d85f4cc8ea3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1124 8312 bytes
font_01_sfnt_off00006607.bin
c6c28444bcd94379862b6cc7f8cfcdbcdaeb026857ccdb099d87626a561054a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6607 16092 bytes

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