Malicious PDF — malware analysis report

Static analysis result for SHA-256 29c6eb5fecf548cc…

MALICIOUS

PDF

40.4 KB Created: 2020-03-17 14:54:28 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9f06d3c1fbc0785e24e4f5728d3dd386 SHA-1: 7427551bcf3aa94bcd98ce257694673a4a294351 SHA-256: 29c6eb5fecf548ccd3cb0aba2a84512c07d1a24be15df41474c7c1020abee8e2
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links pointing to other PDF files hosted on various domains, indicating a link farm or redirection strategy. The ML classifier strongly flagged this PDF as malicious. The primary attack pattern involves directing users to a network of potentially malicious or spam-related content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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://dhhslaragelles.com/uploads/1/3/0/7/130740207/130740207.html#graco+pack+n+play+changing+table+insert
    • http://listentothelonging.com/uploads/1/3/0/4/130483539/8854513.pdf
    • http://pocketbricks.com/uploads/1/3/0/4/130435601/zanitir.pdf
    • http://www.young-wei.com/uploads/1/3/0/7/130775558/1181188.pdf
    • http://mta-sts.ortraining.training/uploads/1/3/0/5/130541745/tijufina.pdf
    • http://usarooterplumbing.com/uploads/1/3/0/6/130604191/6985564.pdf
    • http://mjmallc.com/uploads/1/3/0/2/130271250/duwifezogusej.pdf
    • http://theangelofmine.com/uploads/1/3/0/7/130775309/gasopa.pdf
    • http://mx.katiejanewellness.com/uploads/1/3/0/6/130603983/zanosepezu.pdf
    • http://westcoastintercessors.com/uploads/1/3/0/6/130621481/7987004.pdf
    • http://ntslandscaping.com/uploads/1/3/0/4/130436288/xubefojejumikividun.pdf
    • http://www.konohawk.com/uploads/1/3/0/2/130270762/1584240.pdf
    • http://dpmediaonline.org/uploads/1/3/0/2/130289467/luromi.pdf
    • http://docsquads.org/uploads/1/3/0/5/130590671/4117356.pdf
    • http://merakiimeasure.com/uploads/1/3/0/4/130478009/4e4232c6.pdf
    • http://rvtravelmedia.com/uploads/1/3/0/4/130483184/dimibivexe_gusek_soxisolubitoj.pdf
    • http://alexandrabouvrette.com/uploads/1/3/0/6/130603690/149fdec8e1fe17.pdf
    • http://crim.ms/uploads/1/3/0/4/130483325/dudediza.pdf
    • http://www.poolservicesarasota.com/uploads/1/3/0/2/130291699/8110136.pdf
    • http://fakejustice.us/uploads/1/3/0/6/130621757/zavegurod_femisuriwufa_zopidetot_fixazudofitig.pdf
    • http://growcloud.org/uploads/1/3/0/3/130323109/1176927.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_off00005d89.bin
5eb323f7f27f3496a3f56122237eb20b56baaab7d5012d9c4a6d319de9f89a77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D89 8100 bytes
font_01_sfnt_off00007d0d.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D0D 16036 bytes

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