Malicious PDF — malware analysis report

Static analysis result for SHA-256 4867e25e9644025f…

MALICIOUS

PDF

48.2 KB Created: 2020-09-01 08:47:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5aac323bb7d60cef8e1ca43f8b6c67fb SHA-1: 3b03b3858c5d5bf99a365ee62531698613402888 SHA-256: 4867e25e9644025fce937854f8c1496a701f11133471adf5ac2761d59fca0f12
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to website templates and the malicious URL. This suggests a social engineering attempt to direct users to a malicious site under the guise of providing useful resources. No scripts were extracted, limiting the analysis of direct execution capabilities.

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/wix?keyword=website+templates+for+primary+schools
    • https://static.usrfiles.com/ugd/469aea_f9e725964e9649b09c42fdd11fb32b07.pdf
    • https://static.usrfiles.com/ugd/b8c837_cb33a94129224f33a0713f8beccb0603.pdf
    • https://static.usrfiles.com/ugd/158fb9_308cf12c61f14ed3b5febed66807806c.pdf
    • https://static.usrfiles.com/ugd/ce77c6_c196740d4af64a23b104ff3c95fb2191.pdf
    • https://cdn.shopify.com/s/files/1/0447/9618/2679/files/tukujosowizixinosoj.pdf
    • https://cdn.shopify.com/s/files/1/0432/5546/4104/files/runabevawabi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8991/2218/files/32041177047.pdf
    • https://cdn.shopify.com/s/files/1/0437/1087/3765/files/34821437139.pdf
    • https://cdn.shopify.com/s/files/1/0434/6239/4008/files/carcassonne_big_box_rules.pdf
    • https://cdn.shopify.com/s/files/1/0432/8056/4392/files/65126684289.pdf
    • https://cdn.shopify.com/s/files/1/0435/2730/7416/files/jspdf_autotable_npm_install.pdf
    • https://cdn.shopify.com/s/files/1/0440/9117/9160/files/mapogiwosu.pdf
    • https://static.usrfiles.com/ugd/b8c837_ce8a0aae0dad4a7d9cf2c84ecafaaf37.pdf
    • https://static.usrfiles.com/ugd/4d400c_247833cbc512493c8baa1ae0d7e50f6d.pdf
    • https://static.usrfiles.com/ugd/b8c837_90644722b4944c36be91780c1542a9de.pdf
    • https://static.usrfiles.com/ugd/b8c837_292e57e6f54449f19591ea43a18221a3.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066d1.bin
39688cf87058e70dc00f4023d284cd680c08aa7c081971c438d64167d9843aee
pdf-font-stream PDF embedded font (sfnt) at offset 0x66D1 5192 bytes
font_01_sfnt_off00007879.bin
72a3fe65f0a21df30f240897224061cfa351088b80a4eb601fb5defb198ec993
pdf-font-stream PDF embedded font (sfnt) at offset 0x7879 2268 bytes
font_02_sfnt_off0000828b.bin
2568d237947fc284acce0babe161f7912447ff72140cb88e793389042b80e460
pdf-font-stream PDF embedded font (sfnt) at offset 0x828B 10132 bytes
font_03_sfnt_off0000a533.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0xA533 4324 bytes