Malicious PDF — malware analysis report

Static analysis result for SHA-256 59dcd643fce3f2a9…

MALICIOUS

PDF

37.9 KB Created: 2020-08-01 20:51:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a2ad94167e1d2ad11c084875bf5ef24 SHA-1: 65e002fc7d30a4c485c747f4ca02b1b689d49b3e SHA-256: 59dcd643fce3f2a9eaf3c7d91d8d5ddf691fbc24cba3fa59a4f1821b25521e5c
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified as a link farm. One of the primary links redirects to `ttraff.com`, a known malicious redirector. The document body appears to be malformed or corrupted, but the presence of the link farm and the malicious redirector strongly indicate a phishing or redirection attack. 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.com/pify?keyword=skyrim+child+overhaul
    • http://files.dancersinkaz.com/uploads/1/3/1/3/131379042/396792.pdf
    • http://files.adorote.org/uploads/1/3/2/7/132740951/f6f051.pdf
    • http://files.constructionprogress.org/uploads/1/3/0/8/130874266/pumulogupopaxem_wifibajedowur_pulozakiwokupa.pdf
    • https://cdn.shopify.com/s/files/1/0431/0253/5840/files/pusemenukodoneritojon.pdf
    • https://cdn.shopify.com/s/files/1/0432/0139/6896/files/88853713431.pdf
    • https://cdn.shopify.com/s/files/1/0431/1659/3312/files/nipuzifijujaso.pdf
    • https://cdn.shopify.com/s/files/1/0437/4953/9989/files/91820311658.pdf
    • https://cdn.shopify.com/s/files/1/0433/5504/6037/files/talagagolonotinomatezoko.pdf
    • https://cdn.shopify.com/s/files/1/0431/4244/7265/files/98554145875.pdf
    • https://cdn.shopify.com/s/files/1/0440/7099/4085/files/fimoku.pdf
    • https://cdn.shopify.com/s/files/1/0433/1618/3205/files/vudekiboxifuximunixagodax.pdf
    • https://cdn.shopify.com/s/files/1/0435/1829/6216/files/numugefajewiziposelijaju.pdf
    • https://cdn.shopify.com/s/files/1/0428/9714/6019/files/61141448818.pdf
    • https://cdn.shopify.com/s/files/1/0431/3271/5163/files/31204761744.pdf
    • https://cdn.shopify.com/s/files/1/0431/1387/3569/files/nemixuzenakozopusef.pdf
    • https://cdn.shopify.com/s/files/1/0430/1452/0995/files/stardew_valley_winter_yam.pdf
    • https://cdn.shopify.com/s/files/1/0430/8461/1733/files/65240788234.pdf
    • https://cdn.shopify.com/s/files/1/0438/7300/9819/files/98586742126.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a64.bin
aae881303eba2fe6db36273721f7de2b87080fd4e9f573a714f750984574a8f0
pdf-font-stream PDF embedded font (sfnt) at offset 0x4A64 5024 bytes
font_01_sfnt_off00005b70.bin
9944f0178edb3a2377d3672fa08cd11c0608a3d47c08c5577fd0edb95bdf718b
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B70 9916 bytes
font_02_sfnt_off00007cb8.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CB8 4324 bytes