Malicious PDF — malware analysis report

Static analysis result for SHA-256 cccde9f38e0d57a8…

MALICIOUS

PDF

29.4 KB Created: 2020-04-13 22:48:51 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 59703bd5ff24684549644e75698e77d9 SHA-1: 1989b934f93fd8ab22252b0580f93b126be6e144 SHA-256: cccde9f38e0d57a89382e25ed105c7d74838919c27dcebd82d2b8a5ef6914847
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF document contains a large number of external links, many of which point to PDF files hosted on various domains. The document body mentions 'Bms apk for android', suggesting a lure to download an Android application. The presence of a 'Visual download / call-to-action button lure' heuristic further supports this. The primary goal appears to be directing users to download potentially malicious content, such as an APK, through a link farm.

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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://woodnwhiskeymke.com/uploads/1/3/1/4/131438129/131438129.html#bms+apk+for+android
    • http://chunchorecords.com/uploads/1/3/0/3/130323491/0dffc07d0e.pdf
    • http://t-moest.com/uploads/1/3/1/4/131414743/lebex_dozatini.pdf
    • http://terraniquelawnhomeservices.com/uploads/1/3/1/4/131453145/xasoxipupomivaxirod.pdf
    • http://macrepairbrooklyn.com/uploads/1/3/0/7/130738854/surorilok_megakebezuxaje.pdf
    • http://whiteboardvc.com/uploads/1/3/0/7/130775685/a1e77dc.pdf
    • http://vinorossowineaeratorpourer.com/uploads/1/3/0/6/130605074/a00c6b8f598.pdf
    • http://insurancetailored.net/uploads/1/3/0/6/130620484/monumaru-sobobofujedifaw.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ce1.bin
6e2b7b9eac1e0e6a902e6ac9d4b12015aa8131080bf919196cadf8b50daac840		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4CE1 7460 bytes

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