Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd023b00530dea1b…

MALICIOUS

PDF

38.8 KB Created: 2020-09-10 05:54:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe8654b7a6057fc033a80b3930044042 SHA-1: c1ded8e64c74aac09949b1a554bf1c1075d3e529 SHA-256: fd023b00530dea1b2baa646b9baa1ffafa45c7cd57441ccd311cc05a97f3184e
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One prominent link, 'https://ttraff.club/pify?keyword=nido+nds+emulator+games+apk', suggests a lure to download potentially malicious content related to NDS emulator games. The heuristic firings confirm the presence of a malicious redirector link and a link farm, indicating a deliberate effort to distribute malicious content or engage in SEO abuse for malicious purposes. No scripts were extracted from this sample.

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.club/pify?keyword=nido+nds+emulator+games+apk
    • http://bibami.kurmconsulting.com/uploads/1/3/1/4/131453501/mefopemewegebi.pdf
    • http://fimizazi.gulfcoastelitecheer.com/uploads/1/3/1/4/131438641/regapovuvikonositila.pdf
    • http://witug.thelotuscollaborative.com/uploads/1/3/1/8/131856166/telususo-serifezetawud-berunatuf-megoxeborukev.pdf
    • http://poduluj.scsurfaces.net/uploads/1/3/1/4/131453293/xevumopuse.pdf
    • http://files.flexitunnel.co.nz/uploads/1/3/0/7/130738889/jepurogij_zuninadesez_piziror.pdf
    • http://files.sterlingne.com/uploads/1/3/1/4/131453998/kepadusivobalukir.pdf
    • http://vigipare.nobullshitacademy.com/uploads/1/3/0/9/130968921/xinojixeteja-kizolefelabe.pdf
    • http://files.thatlawguykev.com/uploads/1/3/2/7/132710661/kurobegag-rogujavorukeb-ginaxujatides-koloradid.pdf
    • http://rafazuke.donshort-artscaper.com/uploads/1/3/1/4/131452903/5662489.pdf
    • http://files.store.wssbadminton.com/uploads/1/3/1/4/131406337/370ed30f7f3.pdf
    • http://files.qjobstoday.com/uploads/1/3/2/7/132741322/vipefilutujo.pdf
    • http://files.screenenclosurepros.com/uploads/1/3/0/7/130776720/fajaduwisepipaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/9620/2652/files/25053811912.pdf
    • https://cdn.shopify.com/s/files/1/0430/6668/7642/files/62897429221.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_off0000551e.bin
1626b119e6332bb81bcb3999ab9651de0b6be5e95bb379e1a5a90c9ca9187712		 pdf-font-stream PDF embedded font (sfnt) at offset 0x551E 5312 bytes
font_01_sfnt_off0000671c.bin
f4b9661d6c5b4279b8b0e42f0e647ff5d79168bc844f464641db995f46a8646f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x671C 12136 bytes

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