Malicious PDF — malware analysis report

Static analysis result for SHA-256 a578f48a92daa0d9…

MALICIOUS

PDF

40.9 KB Created: 2020-07-08 16:35:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d5739a04becbeb3e5cf24c2f51789d9 SHA-1: 8bdcea0ae63ec7a4c7bdebc048995a5190e1c8c0 SHA-256: a578f48a92daa0d9d7c9af02c156bf60e933306805410048689b18c2de8034c3
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, many of which point to external PDF files hosted on various domains. One critical heuristic identified a link to a known malicious redirector infrastructure. The document body, though obfuscated, also contains URLs that appear to be part of this link farm. The primary function of this document is to serve as a link farm, likely for SEO manipulation or to distribute traffic to malicious sites.

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.ru/pify?keyword=bikini+bottom+genetics+incomplete+dominance+worksheet
    • http://files.pemmensgolf.net/uploads/1/3/1/3/131379612/febokibilodirina.pdf
    • http://files.killjoy.info/uploads/1/3/2/8/132816158/444fa6d86d0810f.pdf
    • http://files.lucycampbell.net/uploads/1/3/1/3/131380158/nobufamakaxaxe-kenupewel-nazusit.pdf
    • http://files.worldwarc.ca/uploads/1/3/0/8/130815095/xokevogetuwa.pdf
    • http://files.shakerrentals.com/uploads/1/3/2/8/132815752/jabiratijoso-zamedo.pdf
    • http://files.whistlingfrogresort.com/uploads/1/3/2/6/132681002/masaberilanimubaloji.pdf
    • http://files.tanyagoldhaber.com/uploads/1/3/0/7/130776481/kotofuvixanun.pdf
    • http://files.beitnachum.org/uploads/1/3/1/4/131483253/ximegigojepirez_rabisosip_suwupisi.pdf
    • http://files.morethansoulfood.net/uploads/1/3/2/3/132302973/timuf.pdf
    • http://files.pamsteashoppe.com/uploads/1/3/1/3/131384789/59b03f6f49c09c.pdf
    • http://files.angkorvetclinic.com/uploads/1/3/1/3/131379353/2566871.pdf
    • https://zizuxufu.files.wordpress.com/2020/06/39648318443.pdf
    • https://nemogodulivo.files.wordpress.com/2020/06/ronoxo.pdf
    • https://mudosezu.files.wordpress.com/2020/06/sezofugadajuvup.pdf
    • https://fobigagebe.files.wordpress.com/2020/06/46724861661.pdf
    • https://vimagifa577894512.files.wordpress.com/2020/06/lunisawo.pdf
    • https://levamine.files.wordpress.com/2020/06/6724767561.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/82595467958.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mulobovapu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kepikopu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/paxotaxazojulilinitulo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nagexonulelaxefirulilona.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41718344304.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zemeletitofugawekabol.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_off00006046.bin
ee00a11c61080994137f1afe6b2fdde4a8fd6cd59c48981676f2426f980f415f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6046 5620 bytes
font_01_sfnt_off0000732f.bin
6c233a93655669518c8cf51ea582f6524728263bd18b41a9817bed9f0203d6a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x732F 10332 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.