Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cbcd061f78c1d66…

MALICIOUS

PDF

40.9 KB Created: 2020-08-22 11:30:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e8ff3ed11537767318407b81786bb8e SHA-1: 72a655cfaded8aab5976375f3581d7900fc0e8e9 SHA-256: 2cbcd061f78c1d66ae7109fc9d19f78879e88a4bac17d3491926ce39510246f2
120 Risk Score

Malware Insights

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

The PDF file contains a lure related to an 'air conditioning maintenance contract template' and embeds multiple links. One of these links, 'https://ttraff.cc/pify?keyword=air+conditioning+maintenance+contract+template', is identified as a malicious redirector. The document also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The presence of a malicious redirector indicates an attempt to lead the user to a harmful destination, likely for phishing or malware distribution.

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=air+conditioning+maintenance+contract+template
    • http://gelavubej.impartalliance.org/uploads/1/3/1/4/131407592/beduzewizoveges_tuxeganupon_vozijib_moguxijuwur.pdf
    • http://bemafu.dreamalign.com/uploads/1/3/1/4/131407424/sarejasatepolu.pdf
    • http://kaxifa.willucaauto.com/uploads/1/3/1/6/131637814/fugobegekofi-fizodotova-weluzugovas.pdf
    • http://files.swiss-german-online.com/uploads/1/3/0/8/130874489/75ff69bc.pdf
    • http://files.apellasolutions.com/uploads/1/3/0/9/130969260/bigopubekefexewipog.pdf
    • https://cdn.shopify.com/s/files/1/0435/4303/6053/files/uttarakhand_police_bharti_2019_online_form.pdf
    • https://cdn.shopify.com/s/files/1/0450/0199/8504/files/ecafe_lahey_org.pdf
    • https://cdn.shopify.com/s/files/1/0433/1618/3198/files/deep_water_summary_and_question_answers.pdf
    • https://cdn.shopify.com/s/files/1/0443/6888/7964/files/bath_and_body_works_online_application.pdf
    • https://cdn.shopify.com/s/files/1/0437/3502/3770/files/all_body_beast_schedule.pdf
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/fazuwunabim.pdf
    • https://cdn.shopify.com/s/files/1/0433/0071/6694/files/rowibopefuliwixepikemulow.pdf
    • https://cdn.shopify.com/s/files/1/0435/9526/8264/files/ecocardiograma_pediatrico.pdf
    • https://cdn.shopify.com/s/files/1/0431/8576/6564/files/46045914582.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_off0000615f.bin
0bb10be7677fdfcc0845e13e8f2a3dd489ac897d3fa5d9109f676497ae127746		 pdf-font-stream PDF embedded font (sfnt) at offset 0x615F 5204 bytes
font_01_sfnt_off000072ec.bin
1e442369bd718d28e31f0f4051cc485d182dd1050dfef2b15af445b7160cce92		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72EC 10484 bytes

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