Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae291e0fe92899b1…

MALICIOUS

PDF

41.3 KB Created: 2020-08-05 05:28:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6827edddb333f0fd6cde5fbc8f8017a0 SHA-1: 12e1b90a4c06ad1d1ea6f75cdd27452a803d66de SHA-256: ae291e0fe92899b12564732036e9540810730d38eaf5570a63a664436db09015
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=bullying+psicologico+pdf', indicating a lure to a potentially malicious site. The presence of a link farm further suggests an attempt to distribute malicious content or traffic. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • 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://ttraff.com/pify?keyword=bullying+psicologico+pdf
    • http://files.beamofhopeafc.net/uploads/1/3/1/3/131383514/4eeafdeab64635.pdf
    • http://files.cindymcmillionphotography.com/uploads/1/3/2/6/132695986/renaxifukiz.pdf
    • http://files.inspiredayurveda.com/uploads/1/3/2/7/132711966/zovufe.pdf
    • https://cdn.shopify.com/s/files/1/0429/8768/4003/files/wondershare_to_word_converter_with_crack_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0440/7702/3384/files/streaming_on_discord.pdf
    • https://cdn.shopify.com/s/files/1/0428/0126/6851/files/liwiz.pdf
    • https://cdn.shopify.com/s/files/1/0438/6160/6550/files/anestesia_local_en_odontologia_carlos_macouzet_olivar_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0437/9151/5809/files/93705071915.pdf
    • https://cdn.shopify.com/s/files/1/0431/8524/2269/files/radudusasikiru.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tifomev.pdf
    • https://cdn.shopify.com/s/files/1/0434/1887/8104/files/satebapevadojunazila.pdf
    • https://cdn.shopify.com/s/files/1/0439/2475/0504/files/sebupan.pdf
    • https://cdn.shopify.com/s/files/1/0434/0023/3112/files/57736721236.pdf
    • https://cdn.shopify.com/s/files/1/0437/6104/1559/files/54370220399.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_off0000636d.bin
0a398662409cc87b372de730cb3842a280ec8d60675252ce8c99a16ab2281c26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x636D 5168 bytes
font_01_sfnt_off00007531.bin
5b8dfc6ef7d56d58b856e120555cfff4f031e8042a5adbd0993177b792cb15c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7531 10340 bytes

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