Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcac2308febc1826…

MALICIOUS

PDF

45.5 KB Created: 2020-08-24 08:17:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74f45e06853add595ced2202bceb4f68 SHA-1: 51c056935fa0f06ecbc059331ca7d6ac0b7a7d82 SHA-256: dcac2308febc1826d450e7adb2e46bd48ff2eaf61acd1e6f1a7dde263ea13f30
128 Risk Score

Malware Insights

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

The PDF document contains a high number of embedded links, many pointing to shopify.com domains, forming a link farm. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=intermediate+exam+date+sheet'. This suggests the document is designed to direct users to malicious websites, potentially for phishing or malware distribution. 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=intermediate+exam+date+sheet
    • http://dabowo.pearlriverkeeper.com/uploads/1/3/1/3/131383965/1022077.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3768/files/list_of_african_countries_and_their_capitals.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/suramagufumaxuragozud.pdf
    • https://cdn.shopify.com/s/files/1/0432/9937/3214/files/kobepow.pdf
    • https://cdn.shopify.com/s/files/1/0430/3765/5191/files/ars_poetica_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0437/7221/5458/files/instalacion_de_paneles_solares_termicos.pdf
    • https://cdn.shopify.com/s/files/1/0431/3907/2161/files/29576370351.pdf
    • https://cdn.shopify.com/s/files/1/0431/9635/0626/files/12401596640.pdf
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/university_assignment_example.pdf
    • https://cdn.shopify.com/s/files/1/0432/3459/0878/files/jafekuwujutomidokawu.pdf
    • https://cdn.shopify.com/s/files/1/0459/9100/2279/files/miduxi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8004/8023/files/wunukizererovejizoseporom.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_off00006aab.bin
869489c0919cb05557aec34716afed05c65fe3fa3fe0f15aadb86541b98e68d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AAB 5036 bytes
font_01_sfnt_off00007b9b.bin
7b132477762c0aee7df4857b05d63108a07c033c81fd3aa3790d47851b7f4319
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B9B 14580 bytes