Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ee44d5cee2eecb9…

MALICIOUS

PDF

93.4 KB Created: 2020-07-27 19:52:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84436a5d639838f0a239a141acdd27ac SHA-1: 3f076b80dc53363c4ca8a94887f96f05633fdf88 SHA-256: 3ee44d5cee2eecb970ac14ad5543845349ca8bf51515485ea5b5eb53d1213f83
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. It also fires for PDF_SEO_LINK_FARM, suggesting a large number of outbound links. The primary malicious URL identified is ttraff.cc, which is used in conjunction with a lure related to a 'Vampire the Masquerade character sheet PDF'. 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.cc/pify?keyword=vampire+the+masquerade+character+sheet+pdf
    • http://files.duttonsgas.com/uploads/1/3/0/8/130814284/lofuvubilaget.pdf
    • http://files.pinnaclelifeco.com/uploads/1/3/1/3/131381259/pifiw.pdf
    • http://files.earthseaspacemuseum.org/uploads/1/3/2/6/132681769/xexasebem.pdf
    • https://cdn.shopify.com/s/files/1/0438/4853/2128/files/60245888203.pdf
    • https://cdn.shopify.com/s/files/1/0430/2720/2205/files/dedegupamijudofeloluga.pdf
    • https://cdn.shopify.com/s/files/1/0433/0484/5465/files/rojogumade.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/39400212011.pdf
    • https://cdn.shopify.com/s/files/1/0433/4937/7174/files/xerimofiduvegafevemikur.pdf
    • https://cdn.shopify.com/s/files/1/0431/4100/5480/files/66815071183.pdf
    • https://cdn.shopify.com/s/files/1/0437/9007/4018/files/12163885412.pdf
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/pagikarajojimo.pdf
    • https://cdn.shopify.com/s/files/1/0432/1404/5341/files/duvemerepozojulab.pdf
    • https://cdn.shopify.com/s/files/1/0428/1332/5471/files/pubarumaxafiro.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/nofadef.pdf
    • https://cdn.shopify.com/s/files/1/0436/0149/4178/files/nuruzuzidadaxupesutujikam.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_off000131dd.bin
4dc3f2cf259bd36a3c9b68763f1b2daba83fa5a19aae492f452b56a8da2664a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x131DD 5120 bytes
font_01_sfnt_off00014343.bin
9aeedafcc47cc16ee2be87ff1e3b49d64ed976f867192e0613565d0e8483a742		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14343 10600 bytes

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