Malicious PDF — malware analysis report

Static analysis result for SHA-256 98fbd91000aaf8f8…

MALICIOUS

PDF

40.5 KB Created: 2020-10-04 16:03:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61ba1e617a43f6ec08153d6b90c523a8 SHA-1: a38d05831091af2c742e05d54fd170bc5941664f SHA-256: 98fbd91000aaf8f8cad13795b172b3ad234308bc36f3d05b2d0f863997bbb3fd
60 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The document body, though heavily obfuscated, contains the same URL that is flagged as malicious. This suggests the primary purpose is to redirect the user to a malicious site, likely for further exploitation or phishing. No scripts were extracted from this sample.

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ttraff.me/pify?keyword=how+to+focus+on+yourself+during+separation
    • https://site-1041492.mozfiles.com/files/1041492/44490520691.pdf
    • https://site-1038710.mozfiles.com/files/1038710/tupupukomoramarevajezizi.pdf
    • https://site-1039214.mozfiles.com/files/1039214/derujuwiviw.pdf
    • https://site-1038820.mozfiles.com/files/1038820/87600419427.pdf
    • https://site-1036775.mozfiles.com/files/1036775/dunamejogukujuda.pdf
    • https://site-1043437.mozfiles.com/files/1043437/33690269181.pdf
    • https://site-1039793.mozfiles.com/files/1039793/5627457452.pdf
    • https://site-1039135.mozfiles.com/files/1039135/naxuruwugox.pdf
    • https://uploads.strikinglycdn.com/files/5f1a574e-a443-4d92-b3ba-e9aeb7307169/93066098054.pdf
    • https://uploads.strikinglycdn.com/files/ad911867-10e2-4db7-80a5-58a2ab8e624c/konikunovajerovajexeva.pdf
    • https://uploads.strikinglycdn.com/files/05e9c113-df34-414b-97f9-56eb88edf305/newuxalusadamosomulimala.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006189.bin
2ebb5aa899960f2de1c7e627f05695f534606a680b5989d44483e35895f80b63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6189 5476 bytes
font_01_sfnt_off00007453.bin
75ee1cb38f46af200312ac5e863b2ccc77bf8032e7ea9bfee2656754778ff2d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7453 9532 bytes

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