Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6d38a047f6ba502…

MALICIOUS

PDF

60.9 KB Created: 2020-08-19 15:31:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d3634bb992a2425a57081c8cd512999f SHA-1: 691cdcfee9b591c3fc9573b27739e60f950d3a5f SHA-256: e6d38a047f6ba5028e878ae7cb121bf953ada54116c827da36ef64ff1d5b2f16
182 Risk Score

Malware Insights

MITRE ATT&CK
T1539 Steal User Data T1204.002 Malicious Link

The PDF contains a lure requesting sensitive recovery information, directly aligning with the 'SE_SECRET_RECOVERY_LURE' heuristic. It also embeds numerous links, with one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=cd+android.%252F+gradlew+assemblerelease+not+working'. The presence of a link farm further suggests malicious intent, likely to distribute further payloads or phish users. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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/pify?keyword=cd+android.%252F+gradlew+assemblerelease+not+working
    • http://xudigoge.dasoa.org/uploads/1/3/0/7/130776255/f5a145ae363.pdf
    • http://files.erikaaaguilar.com/uploads/1/3/1/6/131606094/197566ef5e.pdf
    • http://nisudis.jason-oconnell.com/uploads/1/3/0/8/130814297/tozibotosopufitopew.pdf
    • https://cdn.shopify.com/s/files/1/0430/3981/7890/files/laxekupuri.pdf
    • https://cdn.shopify.com/s/files/1/0427/6345/2583/files/hdfc_bank_loan_against_property_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43106273748.pdf
    • https://cdn.shopify.com/s/files/1/0432/7692/7134/files/kazitolor.pdf
    • https://cdn.shopify.com/s/files/1/0432/2341/6995/files/ti_36x_pro_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/9850/4354/files/ramexidazekijivewawuso.pdf
    • https://cdn.shopify.com/s/files/1/0448/0362/1025/files/carbon_footprint_analysis_in_plastics_manufacturing.pdf
    • https://cdn.shopify.com/s/files/1/0448/0968/3110/files/bafujutituwagitiwepe.pdf
    • https://cdn.shopify.com/s/files/1/0433/3817/0523/files/31884777749.pdf
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/mamerafo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7314/2935/files/95983787813.pdf
    • https://cdn.shopify.com/s/files/1/0428/1758/5308/files/bupazexubirulezuzikusisa.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_off0000711d.bin
3d8bc7c6c7a7525b60ef0964fe3db9bbfb13aee0e40ce4eea68723638c9aa3bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x711D 13644 bytes
font_01_sfnt_off00009d3f.bin
554d17e715e21778d53fb73084e7f0267fe074f938f1e618c01d4682a28fe06c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D3F 5320 bytes
font_02_sfnt_off0000af5e.bin
ceb0bf9a41f7182deee5f52f593ea00436e9abf5bcd4dd01a6ca937a1f9305e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAF5E 12488 bytes
font_03_sfnt_off0000d776.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD776 4324 bytes

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