Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7e783d0c260e924…

MALICIOUS

PDF

43.4 KB Created: 2020-09-16 19:59:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d92191648e40e9462593db7d4e8465e SHA-1: 1b6e3bcf7ff0aea5cde69d985b156ee5ba348dd3 SHA-256: e7e783d0c260e924cef20b52c9039110d452e0b67b0e60a2d4192ec5e7e06fd3
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one identified as a malicious redirector. The primary malicious URL is https://ttraff.me/wix?keyword=del+dios+academy. The document body is heavily obfuscated and appears to contain junk data, but the presence of the malicious link is the strongest indicator of malicious intent. The file is likely used to direct users to malicious websites for phishing or further exploitation.

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=del+dios+academy
    • https://50f13ab2-b15c-4a6e-b51b-b01a23a7
    • https://af677a9f-1d20-413b-80fc-3bf78289891e.filesusr.com/ugd/26481d_3a6214e7472e4013a7d83e52c2b4d671.pdf?index=true
    • https://e9c64cba-dd64-4c9f-a3fc-3e4cb357dd46.filesusr.com/ugd/b56239_58f6e0c562324ab18a06cdb4b9697a2f.pdf?index=true
    • https://fe6569bc-6d09-46d5-a0e3-760873b2f944.filesusr.com/ugd/9df9d6_4e88f6b474994e4f9b6d1ee0a92e7b8c.pdf?index=true
    • https://77a8e08b-5473-4a44-a890-f4f852e57354.filesusr.com/ugd/f09a9d_8b126b1b7e8d4a3c8921140b5af54177.pdf?index=true
    • https://c1ac154f-641a-4c4c-a584-f0b5a963432b.filesusr.com/ugd/d90490_89a106f01e684503a541c4d46bed8fbf.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0428/9599/9129/files/40416904697.pdf
    • https://cdn.shopify.com/s/files/1/0437/1959/0056/files/cybex_610a_arc_trainer_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/6535/1071/files/712918393.pdf
    • https://cdn.shopify.com/s/files/1/0432/0513/2456/files/sure_big_odds_tips_apk.pdf
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/58818671975.pdf
    • https://f4f1fba4-6248-4422-bcd1-880a323af3f3.filesusr.com/ugd/dba42a_e235fb1847214dfeb0b00d50658f191e.pdf?index=true
    • https://a11369f1-b83b-40ac-8d39-d6724ff6f81e.filesusr.com/ugd/11b39a_b421f130ef424c4cab8561358cc9f4a8.pdf?index=true
    • https://1d3742af-7874-477e-85ac-9cf69a4c9358.filesusr.com/ugd/035627_852d601bb5204ba08a8ee3c4da8f6ec7.pdf?index=true
    • https://5e3a6970-9103-4f6c-9180-3cfd7b029c13.filesusr.com/ugd/158fb9_7e22ead4a1f84f6aa0921f040a922aff.pdf?index=true
    • https://50f13ab2-b15c-4a6e-b51b-b01a23a755e0.filesusr.com/ugd/5bf82b_2237651c4a73417dab3cf8307402f16c.pdf?index=true
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c62.bin
737eb12fb1fb6ecf058ac6904f22f477271410c9790cee76f02ce38ed19d6fbe
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C62 4692 bytes
font_01_sfnt_off00006c60.bin
1820e8eac737e10b3dbb818f9cbe8f4d35b160b6327ddac24494ae46dba12ed2
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C60 11296 bytes
font_02_sfnt_off0000915c.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x915C 4324 bytes