Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb27f541ee90129a…

MALICIOUS

PDF

42.8 KB Created: 2020-09-14 16:32:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 533db4466c09dc9449ae6361510c6fbb SHA-1: 9e3d285dd49fc26031321a04dbea44574e95ff98 SHA-256: fb27f541ee90129ad0c57bdb72a751b13e33cb0f64845df313fff8875e034aaf
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/pify?keyword=sports+head+soccer+championship'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, including 'http://files.mrlum.com/uploads/1/3/0/7/130775596/3461966.pdf'. The document body, though heavily obfuscated, contains the same redirect URL, reinforcing the malicious intent.

Heuristics 3

  • 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.
  • 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.
  • 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=sports+head+soccer+championship
    • http://files.mrlum.com/uploads/1/3/0/7/130775596/3461966.pdf
    • http://files.proverbialcat.com/uploads/1/3/0/7/130740072/7ad87.pdf
    • http://files.rhinedesign.org/uploads/1/3/2/6/132681767/timegekepu.pdf
    • http://jasuwis.portillahg.com/uploads/1/3/0/7/130774977/2615685.pdf
    • http://files.orcaaware.org/uploads/1/3/1/6/131636745/supozebobotuma.pdf
    • http://files.allieherrera.com/uploads/1/3/0/9/130969489/812087.pdf
    • http://besopiron.okomomodesign.com/uploads/1/3/1/6/131637919/3587422.pdf
    • http://sajelerej.domowilliamsburg.com/uploads/1/3/1/6/131637679/kolitajejaba.pdf
    • http://kironek.appalachianflyandyak.com/uploads/1/3/1/3/131380600/4ed8b18907.pdf
    • https://static.usrfiles.com/ugd/238140_3c51d5530e5642d1b30578d0f2655cc5.pdf
    • https://static.usrfiles.com/ugd/f7fbc8_fa7b6c52112f4a2b91f2aa603bf54d80.pdf
    • https://static.usrfiles.com/ugd/c836c3_18213cc3ef7c4fba8a783407456d81ef.pdf
    • https://static.usrfiles.com/ugd/ecd213_f58a6cf9a335406aa8b0b79491038aeb.pdf
    • https://static.usrfiles.com/ugd/0a593f_d26b6127177349da85fb64a9b9d43e43.pdf
    • https://static.usrfiles.com/ugd/e73fea_241ddf36abe14a2eb9e613846b9a9df6.pdf
    • https://static.usrfiles.com/ugd/de02f3_880de4fc83184100b937f9ec48528ea1.pdf
    • https://static.usrfiles.com/ugd/3e87bf_8443a00e31d1448da780b0c2aed760d7.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_off000069e4.bin
1ed55c9c6ea56eca26a09f803c80367bb16dfeeac3d956ed5233da88b540a5cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69E4 5384 bytes
font_01_sfnt_off00007c06.bin
2456b898b18646c8df5d432e8e9896bff45bfe783a1bb5d952664d55c137894a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C06 9852 bytes

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