Malicious PDF — malware analysis report

Static analysis result for SHA-256 54232847f3f47ecd…

MALICIOUS

PDF

37.7 KB Created: 2020-07-15 14:57:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46a1c9e3381491a215c963ed51f12499 SHA-1: 9591ae2bc4520af64d711d1cd2c9dcd9ac61c608 SHA-256: 54232847f3f47ecd770254eb360966ff5a46cf68b890dfa2a85c7465d45df950
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to domains that appear to be part of a link farm designed for SEO manipulation. One critical heuristic firing indicates a direct link to known malicious redirector infrastructure. The document body, though heavily corrupted, contains text suggesting a lure for free comic downloads, aligning with the observed link farm behavior. 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/wb?keyword=free%20download%20komik%20doraemon%20bahasa%20indonesia%20pdf
    • http://files.catskillanimalrescue.net/uploads/1/3/1/8/131872273/3578303.pdf
    • http://files.cisenoughisenough.org/uploads/1/3/2/6/132681884/koxumamafedazi.pdf
    • http://files.glocalinternational.com/uploads/1/3/0/8/130874518/9312899.pdf
    • http://files.inspirare.co.uk/uploads/1/3/2/7/132740214/kolonibobazexumakoz.pdf
    • http://files.purposedforapurpose.com/uploads/1/3/1/4/131437322/2037861.pdf
    • http://files.arijadehairandmakeup.com/uploads/1/3/1/6/131636927/lejix.pdf
    • https://zaguzewurufo.files.wordpress.com/2020/06/jamepuxezegopabusosesajiw.pdf
    • https://bokisutedex.files.wordpress.com/2020/06/jonegofefiv.pdf
    • https://xusemoribeva.files.wordpress.com/2020/06/92001178183.pdf
    • https://bamigikomiwe.files.wordpress.com/2020/07/dodegepolubes.pdf
    • https://cdn.shopify.com/s/files/1/0436/5503/7093/files/1721532250.pdf
    • https://cdn.shopify.com/s/files/1/0432/2502/2621/files/64681538422.pdf
    • https://cdn.shopify.com/s/files/1/0431/6073/1803/files/xamaxivez.pdf
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/23623487725.pdf
    • https://cdn.shopify.com/s/files/1/0428/1086/7871/files/rusuvavepozave.pdf
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/43315667845.pdf
    • https://cdn.shopify.com/s/files/1/0430/1609/3849/files/feregixinopezuv.pdf
    • https://cdn.shopify.com/s/files/1/0429/9938/2170/files/tunixedogafiguxife.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83390791822.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_off000057fa.bin
3166ffa4a680809c510fc1c781b12165b1109e7fd9b063bffc802d5c68a76747
pdf-font-stream PDF embedded font (sfnt) at offset 0x57FA 5240 bytes
font_01_sfnt_off0000699a.bin
d6913a83ac33700418f3e0df2aef4c935e02a543ab41801b149973a8d89cfc42
pdf-font-stream PDF embedded font (sfnt) at offset 0x699A 9296 bytes