Malicious PDF — malware analysis report

Static analysis result for SHA-256 f81ee3a8e2459253…

MALICIOUS

PDF

43.8 KB Created: 2020-08-01 09:18:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 473a8f2e20b6b98783589c7399eb9a97 SHA-1: 87b9b8f897e4438dd2ddce7d61fffe45c669160a SHA-256: f81ee3a8e24592538c7ce994eb85135f6deb66a2f776cc4fcdcc3c469130f03b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF document contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body text and embedded URLs suggest a lure related to an installation manual, likely intended to trick the user into clicking the malicious link. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, further supporting the malicious intent of distributing harmful content.

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.cc/pify?keyword=honeywell+th8320u1008+installation+manual
    • http://files.valleyoftheghosts.ca/uploads/1/3/1/4/131408864/gilovetubixabiz_xewoze_wamudo_bomomekarile.pdf
    • http://files.vallemagica.com/uploads/1/3/2/7/132710565/4c67f17eb909f.pdf
    • http://files.laurawilliamsskinbiz.com/uploads/1/3/0/9/130969580/zukitapijufafo.pdf
    • http://files.jmgolfcoaching.com/uploads/1/3/1/4/131407511/7263128.pdf
    • https://cdn.shopify.com/s/files/1/0428/1293/2255/files/xevotigi.pdf
    • https://cdn.shopify.com/s/files/1/0437/8879/6053/files/lukugotet.pdf
    • https://cdn.shopify.com/s/files/1/0438/7579/5099/files/joludefomivepaxijaj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/10809735118.pdf
    • https://cdn.shopify.com/s/files/1/0430/6301/7629/files/gazinubodiposo.pdf
    • https://cdn.shopify.com/s/files/1/0437/0815/4008/files/kizaviruz.pdf
    • https://cdn.shopify.com/s/files/1/0436/7450/1273/files/nesisipagofufufagivijexe.pdf
    • https://cdn.shopify.com/s/files/1/0434/1868/1496/files/29467147035.pdf
    • https://cdn.shopify.com/s/files/1/0438/4666/4349/files/pewol.pdf
    • https://cdn.shopify.com/s/files/1/0432/0185/5646/files/sarevemosubir.pdf
    • https://cdn.shopify.com/s/files/1/0433/0130/6526/files/zoxonadiwaxexowu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/deguvobetilogijubuw.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_off00006c87.bin
a53c66ba29c098213d84c230af27f7c020f1c3831e028a1199df2f20f896914d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C87 5668 bytes
font_01_sfnt_off00007fbd.bin
562d717b14fe83b862e1e2682f282708b226f896d04f9c93102399680bcb27be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FBD 10052 bytes

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