Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5dacd92a820a03d…

MALICIOUS

PDF

40.8 KB Created: 2020-09-10 02:57:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73d0e11bb0ea0fdb08efaae95f3b8cfc SHA-1: 9c7d976ad89fe09e1051e1f054b9f42582f49e22 SHA-256: d5dacd92a820a03d2eede56a2865bd363a7f791721618b0037310b9ecfc5f273
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though partially corrupted, contains text suggesting it is an 'Arthaland corporation annual report 2017', likely a lure. The primary malicious URL is https://ttraff.me/wix?keyword=arthaland+corporation+annual+report+2017, which is designed to redirect the user to further malicious 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.me/wix?keyword=arthaland+corporation+annual+report+2017
    • http://nufarovu.fiftythreemorethings.com/uploads/1/3/0/8/130873791/jetexuvawamivozeju.pdf
    • http://mivedotu.scenesofvirtue.com/uploads/1/3/2/8/132815806/3824681.pdf
    • https://static.usrfiles.com/ugd/e78b77_7b36b54d13644ab5aac1c9fafd4c488e.pdf
    • https://static.usrfiles.com/ugd/a640e9_1a4958bc517c43dd90cdea3c46e484d5.pdf
    • https://static.usrfiles.com/ugd/6a22cb_7ee8b287180d4722b2cb65ce0b45b615.pdf
    • https://static.usrfiles.com/ugd/cdfdba_4de2db41521b44aeb45eda4c549f1357.pdf
    • https://cdn.shopify.com/s/files/1/0437/1690/3062/files/albert_camus_l_etranger_english.pdf
    • https://cdn.shopify.com/s/files/1/0428/3983/4780/files/20224162108.pdf
    • https://cdn.shopify.com/s/files/1/0436/1050/5373/files/viseko.pdf
    • https://cdn.shopify.com/s/files/1/0428/4101/4438/files/51267174134.pdf
    • https://cdn.shopify.com/s/files/1/0428/4170/2567/files/garefe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9154/2681/files/trustful_surrender.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15636630427.pdf
    • https://cdn.shopify.com/s/files/1/0439/4647/5675/files/88496204107.pdf
    • https://cdn.shopify.com/s/files/1/0431/5696/3479/files/converter_to_word_online_easy.pdf
    • https://cdn.shopify.com/s/files/1/0439/8402/7806/files/jobebukom.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_off000060e1.bin
1ebad0bdcf9b2c3144b04bc6dc77e7404009ff2674004a55092d21f6cc9effac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60E1 5376 bytes
font_01_sfnt_off0000732c.bin
c74aef44eef45323ebba7c1639a19399ba832570aee067cc773ca87681f432a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x732C 10260 bytes

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